Microburner apparatus and related methods

Abstract

A microburner configured to test a combustion reaction and its effects on surrounding structures is disclosed.SOLUTION: Microburner 100 includes a leak plate 108 having a test opening 110 configured to simulate a microleak of a gaseous fuel into a combustion environment 101 containing a reactant gas to test a combustion reaction between the reactant gas and the gaseous fuel within the combustion environment. The microburner also includes a gas supply line 112 coupleable to the leak plate and configured to supply gaseous fuel through the test opening and into the combustion environment when coupled. The microburner further comprises an ignition source 114 configured to initiate a combustion reaction between the reactant gas and the gaseous fuel within the combustion environment.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD OF THE DISCLOSURE

[0001] The present disclosure relates generally to methods for testing combustion reactions, and more particularly to microburners utilized to test combustion reactions. [Background technology]

[0002] Industries, including aerospace, are exploring alternative gases as fuel options to replace traditional carbon-based fuels. Hydrogen has become a leading fuel candidate due to its potential environmental benefits. However, the use of hydrogen poses safety concerns, primarily due to its wide range of flammability. It is important to prevent significant amounts of hydrogen gas from mixing with air, as this could ignite and lead to a fire. Unlike hydrocarbon flames, hydrogen fires are difficult to detect because they emit primarily in the ultraviolet spectrum and can escape undetected. While the risks are recognized, the specific hazards associated with hydrogen leaks are not fully understood. Comprehensive testing does not exist to identify the leak rate at which hydrogen gas can ignite when exposed to air or the potential damage such a leak could cause to nearby infrastructure. Currently, testing small or variable leak rates for alternative gases is difficult because typical fire test equipment is designed to generate and test the largest predictable fire rather than testing for small leaks. Summary of the Invention

[0003]

[0003] The subject matter of the present application has been developed in response to the current state of the art, and in particular in response to problems not yet fully solved by, or needs created by, existing methods for testing combustion reactions and related devices and systems. Generally, the subject matter of the present application has been developed to provide a microburner apparatus and related methods that overcome at least some of the above-mentioned shortcomings of the prior art.

[0004]

[0004] Disclosed herein is a micro-burner including a leak plate having a test opening configured to simulate a micro-leak of gaseous fuel into a combustion environment containing a reactant gas for testing a combustion reaction between the reactant gas and the gaseous fuel within the combustion environment. The micro-burner also includes a gas supply line coupleable to the leak plate, the gas supply line configured, when coupled, to supply the gaseous fuel through the test opening into the combustion environment. The micro-burner further includes an ignition source configured to initiate a combustion reaction between the reactant gas and the gaseous fuel within the combustion environment. The preceding subject matter of this paragraph characterizes Example 1 of the present disclosure.

[0005] The combustion environment is a combustion chamber including a housing defining an internal chamber configured to contain a reactant gas and further contain a combustion reaction between the reactant gas and a gaseous fuel, and a leak plate opening in the housing. A leak plate is removably attachable to the leak plate opening to close the leak plate opening and seal the internal chamber of the combustion chamber. When the leak plate is attached to the leak plate opening and the gas supply line is coupled to the leak plate, the gas supply line is configured to supply gaseous fuel into the internal chamber through the test opening. The preceding subject matter of this paragraph characterizes Example 2 of the present disclosure, which also includes subject matter according to Example 1 described above.

[0006]

[0006] The combustion chamber includes at least one visualization window configured to allow external observation of the combustion reaction within the internal chamber. The preceding subject matter of this paragraph characterizes Example 3 of the present disclosure, which also includes subject matter according to Examples 1 or 2 above.

[0007]

[0007] The combustion environment is an open-air environment. The preceding subject matter of this paragraph characterizes Example 4 of the present disclosure, which also includes subject matter according to Example 1 above.

[0008]

[0008] The test opening in the leak plate is one of a pinhole or a slot. The preceding subject matter of this paragraph characterizes Example 5 of the present disclosure, which also includes subject matter according to any one of Examples 1 to 4 above.

[0009] The test opening of the leak plate is 32 mm 2 The preceding subject matter of this paragraph characterizes Example 6 of the present disclosure, which also includes subject matter according to any one of Examples 1 through 5 above.

[0010] The gas supply line is configured to regulate the flow rate of the gaseous fuel through the test opening in the leak plate such that the flow rate of the gaseous fuel is 1 mmol / sec or less. The preceding subject matter of this paragraph characterizes Example 7 of the present disclosure, which also includes subject matter according to any one of Examples 1 through 6 above.

[0011] The microburner includes a second leak plate having a second test opening. The leak plate and the second leak plate are interchangeable such that a gas supply line can be individually coupled to a selected one of the leak plate or the second leak plate. The size of the test opening in the leak plate is different from the size of the second test opening in the second leak plate. The preceding subject matter of this paragraph characterizes Example 8 of the present disclosure, which also includes subject matter according to any one of Examples 1 to 7 above.

[0012]

[0012] The leak plate includes a receiver plate having an outer surface and an inner surface opposite the outer surface. The leak plate also includes a leak insert having a test opening and configured to be selectively attached to the inner surface of the receiver plate. A gas supply line is connectable to the outer surface of the receiver plate to supply gaseous fuel through the test opening of the leak insert. The preceding subject matter of this paragraph characterizes Example 9 of the present disclosure, which also includes subject matter according to any one of Examples 1 to 8 described above.

[0013]

[0013] The leakage insert includes a slot insert receiver having a recess with a first slot surface and a slot opening extending from the recess through a width of the slot insert receiver. The slot insert also includes a second slot surface, and the slot insert is sized to fit within the recess of the slot insert receiver such that a test opening is defined between the first slot surface of the slot insert receiver and the second slot surface of the slot insert. The preceding subject matter of this paragraph characterizes Example 10 of the present disclosure, which also includes subject matter according to Example 9 above.

[0014]

[0014] The leakage insert includes a receiver mating surface and a supply surface opposite the receiver mating surface. The supply surface of the leakage insert has a non-planar surface. The preceding subject matter of this paragraph characterizes Example 11 of the present disclosure, which also includes subject matter according to Example 9 above.

[0015]

[0015] The microburner includes at least one thermocouple within the combustion environment configured to measure the temperature of the combustion reaction. The preceding subject matter of this paragraph characterizes Example 12 of the present disclosure, which also includes subject matter according to any one of Examples 1 to 11 above.

[0016] The microburner includes at least one sensor coupled to the combustion chamber configured to measure a combustion characteristic of the combustion reaction. The at least one sensor includes at least one of a pressure sensor, an optical sensor, a gas sensor, or a thermal sensor. The preceding subject matter of this paragraph characterizes Example 13 of the present disclosure, which also includes subject matter according to any one of Examples 1 to 12 above.

[0017]

[0017] The gaseous fuel is hydrogen gas. The preceding subject matter of this paragraph characterizes Example 14 of the present disclosure, which also includes subject matter according to any one of Examples 1 through 13 above.

[0018]

[0018] Further disclosed herein is a leak plate for a micro-burner, including a receiver plate having an outer surface and an inner surface opposite the outer surface. The leak plate also includes a leak insert having a test opening configured to simulate a micro-leak of gaseous fuel into the combustion environment. The leak insert is removably attachable to the inner surface of the receiver plate. When the leak insert is attached to the inner surface of the receiver plate, a gas supply line is connectable to the outer surface of the receiver plate to supply gaseous fuel through the test opening into the combustion environment to test a combustion reaction between a reactant gas and the gaseous fuel. The preceding subject matter of this paragraph characterizes Example 15 of the present disclosure.

[0019]

[0019] The test aperture is one of a pinhole or a slot. The preceding subject matter of this paragraph characterizes Example 16 of the present disclosure, which also includes subject matter according to Example 15 above.

[0020]

[0020] The leak plate includes a second leak insert having a second test opening configured to simulate a microleak of gaseous fuel into the combustion environment. The second leak insert is removably attachable to the inner surface of the receiver plate. The leak insert and the second leak insert are interchangeable such that a selected one of the leak insert or the second leak insert can be individually attached to the inner surface of the receiver plate to test a corresponding combustion reaction between the reactant gas and the gaseous fuel. The size of the test opening of the leak insert is different from the size of the second test opening of the second leak insert. The preceding subject matter of this paragraph characterizes Example 17 of the present disclosure, which also includes subject matter according to Examples 15 or 16 described above.

[0021]

[0021] Also disclosed herein is a method for testing a combustion reaction in a microburner. The method includes supplying gaseous fuel into a combustion environment through a test opening in a leak plate. The test opening is configured to simulate a microleak of the gaseous fuel into the combustion environment. The method also includes activating an ignition source to initiate a combustion reaction between a reactant gas and the gaseous fuel in the combustion environment. The method further includes monitoring the combustion reaction in the combustion environment. The preceding subject matter of this paragraph characterizes Example 18 of the present disclosure.

[0022] After the combustion reaction is completed, the method includes disconnecting the gas supply line from the leak plate, where the gas supply line is configured to supply gaseous fuel. The method includes selectively attaching a second leak plate to the gas supply line to supply the gaseous fuel into the combustion environment through a second test opening in the second leak plate. The second test opening is configured to simulate a microleak of the gaseous fuel into the combustion environment, and the size of the second test opening in the second leak plate is different from the size of the test opening in the leak plate. The method also includes activating an ignition source to initiate a subsequent combustion reaction between the reactant gas and the gaseous fuel in the combustion environment, and monitoring the subsequent combustion reaction in the combustion environment. The preceding subject matter of this paragraph characterizes Example 19 of the present disclosure, which also includes subject matter according to Example 18 described above.

[0023] After the combustion reaction is completed, the method includes removing the leakage insert having the test opening from the receiver plate of the leakage plate and selectively attaching a second leakage insert having a second test opening to the receiver plate of the leakage plate. The size of the second test opening of the second leakage insert is different from the size of the test opening of the leakage insert. The method also includes supplying gaseous fuel into the combustion environment through the second test opening of the leakage insert of the leakage plate. The second test opening is configured to simulate a microleak of the gaseous fuel into the combustion environment. The method further includes activating an ignition source to initiate a subsequent combustion reaction between the reactant gas and the gaseous fuel in the combustion environment and monitoring the subsequent combustion reaction in the combustion environment. The preceding subject matter of this paragraph characterizes Example 20 of the present disclosure, which also includes subject matter according to Example 18 or 19 described above.

[0024]

[0024] The described features, structures, advantages, and / or characteristics of the presently disclosed subject matter may be combined in any suitable manner in one or more examples, including embodiments and / or implementations. In the following description, numerous specific details are presented to facilitate a comprehensive understanding of multiple examples of the presently disclosed subject matter. Those skilled in the art will recognize that the presently disclosed subject matter can be practiced without one or more of the specific features, details, components, materials, and / or methods of a particular example, embodiment, or implementation. In other cases, additional features and advantages that can be recognized in a particular example, embodiment, and / or implementation may not be present in all examples, embodiments, or implementations. Furthermore, in some cases, well-known structures, materials, or operations have not been shown or described in detail to avoid obscuring aspects of the presently disclosed subject matter. The features and advantages of the presently disclosed subject matter will become more apparent from the following description and appended claims, or may be learned by practicing the subject matter as described below.

[0025]

[0025] So that the advantages of the present subject matter may be more readily understood, a more detailed description of the subject matter outlined above will be given by reference to specific embodiments shown in the accompanying drawings. It will be understood that these drawings illustrate only typical embodiments of the subject matter and should not be considered as limiting the scope of the subject matter. Through the use of the drawings, the subject matter will be described and explained with additional specificity and detail. [Brief explanation of the drawings]

[0026] [Figure 1]

[0026] FIG. 1 is a schematic perspective view of a micro-burner and combustion chamber according to one or more embodiments of the present disclosure. [Figure 2]

[0027] FIG. 1 is a schematic perspective view of a leakage plate of a micro-burner according to one or more embodiments of the present disclosure. [Figure 3A]

[0028] 1 is a schematic perspective view of a leakage insert selectively attachable to a leakage plate having a pinhole test opening, in accordance with one or more embodiments of the present disclosure; FIG. [Figure 3B]

[0029] 3B is a schematic cross-sectional view of a leakage insert such as FIG. 3A taken along line 3B or FIG. 3C taken along line 3B, according to one or more embodiments of the present disclosure. [Figure 3C]

[0030] 10 is a schematic perspective view of another embodiment of a leakage insert selectively attachable to a leakage plate having a slotted test opening in accordance with one or more embodiments of the present disclosure. FIG. [Figure 4A]

[0031] 10 is a schematic perspective view of another embodiment of a leakage insert selectively attachable to a leakage plate having a slot insert receiver and a slot insert in accordance with one or more embodiments of the present disclosure. FIG. [Figure 4B]

[0032] 4B is a schematic front view of the leakage insert of FIG. 4A, with the slot insert separated from the recess of the slot insert receiver, in accordance with one or more embodiments of the present disclosure. [Figure 4C]

[0033] 4C is a schematic cross-sectional view of the leakage insert of FIG. 4A along line 4C, where the slot insert is within a recess of a slot insert receiver, in accordance with one or more embodiments of the present disclosure. [Figure 5]

[0034] FIG. 1 is a schematic flow diagram of a method for testing combustion reactions in a micro-burner, according to one or more embodiments of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0027]

[0035] References made throughout this specification to "one embodiment," "an embodiment," or similar phrases mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in at least one embodiment of the presently disclosed subject matter. The phrases "one embodiment," "an embodiment," and similar phrases appearing throughout this specification may, but do not necessarily, all refer to the same embodiment. Similarly, use of the term "embodiment" means an embodiment having a particular feature, structure, or characteristic described in connection with one or more embodiments of the presently disclosed subject matter, but that embodiment may be associated with one or more embodiments unless there is a clear correlation suggesting otherwise.

[0028]

[0036] Disclosed herein are several examples of microburners and associated methods utilized to test combustion reactions, including the response of materials and structures to the combustion reaction. The following provides at least some features of the microburners and associated methods. The microburners are designed to test combustion reactions between a reactant gas, such as air, and a gaseous fuel, such as hydrogen or methane. The purpose of these tests is to observe the combustion reaction itself and evaluate its effects, including damage caused by the combustion reaction, such as a flame, on various structures and materials. For example, the effects on surrounding structures and materials may include burning, melting, and other forms of degradation. Additionally, measurements of the combustion reaction, such as flame length, are recorded to understand the overall effect and response of the surrounding structure to exposure to combustion. Specifically, the microburners are utilized to simulate microleaks. A microleak may result from a puncture in a device containing gaseous fuel, such as a refueling device or transfer tank. As used herein, a microleak is a small, unintended escape or penetration of gas or liquid from a system, typically through a small hole or gap in the device. These leaks are typically characterized by their extremely small size, which makes them difficult to detect and measure, yet potentially dangerous due to the flammable nature of the escaping gas. Therefore, the microburner includes a leak plate with a test opening that allows gaseous fuel to pass through the test opening and into the combustion environment, simulating a micro-leak.

[0029]

[0037] In some embodiments, the microburner includes multiple interchangeable leak plates that allow for the simulation of microleaks of various sizes (typically extremely small) within the combustion environment. These interchangeable leak plates control the size and shape of the microleaks, allowing for a wide range of microleaks, enabling comprehensive and flexible testing. By using these interchangeable leak plates and igniting the resulting mixture of gaseous fuel and reactant gases, such as a hydrogen-air mixture, the microburner can be used to evaluate differences in the resulting combustion reaction and its effects. This testing using the microburner can help understand the risks of gaseous fuel leaks, develop effective safety protocols for gaseous and cryogenic fuel storage, and ultimately reduce the risk of accidents in fuel-powered systems.

[0030]

[0038] Referring to FIG. 1, a microburner 100 for testing combustion reactions is shown. The microburner 100 is configured for use within a combustion environment 101. The combustion environment 101 is a controlled setting in which a combustion reaction can occur. As such, the combustion environment 101 includes several elements necessary to promote a combustion reaction, including the presence of a reactant gas. The combustion environment 101 can be enclosed, such as within a combustion chamber 102, or can be in an open environment (i.e., an open-to-air environment). Furthermore, the combustion environment 101 is designed to allow for observation of the combustion reactions and their effects on surrounding materials and structures.

[0031]

[0039] In some embodiments, as shown in FIG. 1 , the combustion environment 101 includes a combustion chamber 102 designed to promote and contain the combustion reaction. As shown, the combustion chamber 102 has a generally round shape, but may have other shapes, including a rectangular or cylindrical shape, based on the testing needs of the combustion reaction. The combustion chamber 102 is made from any of a variety of materials capable of withstanding the extreme conditions generated during the combustion reaction. For example, the combustion chamber 102 may be made from stainless steel or an alloy designed for high-heat applications. Furthermore, the combustion chamber 102 is a robust structure designed to withstand high thermal loads without experiencing deformation or failure. The combustion chamber 102 includes a housing 105 defining an interior chamber 106 that is designed to be gas-tight when a leak plate is installed, as described below, ensuring that gases do not leak and that the combustion environment remains controlled. The housing 105 includes a leak plate opening 104 configured to accommodate the leak plate 108 of the micro-burner 100. The leakage plate opening 104 is an opening in the housing 105 of the combustion chamber 102 that exposes the internal chamber 106 to the outside of the combustion chamber 102. The leakage plate opening 104 is sized and shaped to fit the leakage plate 108, such that when the leakage plate 108 is coupled to the leakage plate opening 104, the combustion chamber 102 is closed, creating an airtight environment for the combustion reaction. Additionally, the leakage plate opening 104 may include a sealing mechanism, such as a gasket or O-ring, to ensure an airtight seal and prevent any leaks.

[0032]

[0040] In other embodiments, the combustion environment 101 is an open-air environment, allowing the micro-burner 100 to be used outside of the combustion chamber 102. The open-air environment allows for testing of the effects of the combustion reaction on components that may not fit within the inner chamber 106 of the combustion chamber 102. Appropriate safety precautions can be implemented to safely conduct testing using the micro-burner 100 in an outdoor laboratory setting.

[0033]

[0041] The combustion environment 101 includes a reactant gas and is configured to include a combustion reaction between the reactant gas and a gaseous fuel. As used herein, a reactant gas is a gaseous substance that participates in a chemical reaction and often serves as an oxidizer for the reaction. In some embodiments, the reactant gas is air, which provides the oxygen necessary to promote combustion. Furthermore, a gaseous fuel is a gaseous substance that can produce energy in a combustion reaction with the reactant gas. In some embodiments, the gaseous fuel is derived from a cryogenic liquid, as the fuel system may store the fuel as a cryogenic liquid. The gaseous fuel is introduced into the combustion environment 101 to test whether and to what extent it reacts with the reactant gas (e.g., air). Examples of gaseous fuels include hydrogen gas, methane gas, and natural gas. In some embodiments, the microburner 100 can be used to test a combustion reaction between hydrogen gas and air, as hydrogen gas is a more sustainable fuel option than carbon-based fuels and is more likely to mix with air in the event of a leak. In other embodiments, the microburner 100 can be used to test the combustion reaction between natural gas and air.

[0034]

[0042] The microburner 100 includes a leak plate 108, a gas supply line 112 connectable to the leak plate 108, and an ignition source 114. The leak plate 108 includes a test opening 110. The test opening 110 functions as a conduit through which gaseous fuel is introduced into the combustion environment 101. In other words, the test opening 110 allows for the controlled introduction of gaseous fuel into the combustion environment 101 to simulate a microleak of gaseous fuel. The test opening 110 is in fluid communication with the gaseous fuel, thereby introducing the gaseous fuel into the combustion environment 101 through the test opening 110. The leak plate 108 includes a supply side 118 and a test side 120 opposite the supply side 118. The supply side 118 is connectable to the gas supply line 112. The test side 120 includes the test opening 110 for introducing the gaseous fuel into the combustion environment 101. In some embodiments, the leak plate 108 is a multi-component assembly, including a leak insert 122 and a receiver plate 116, as described below with reference to Figure 2. In other embodiments, the leak plate 108 is a single unit with the test opening 110 integrated directly into the leak plate 108.

[0035]

[0043] 1 , when the combustion environment 101 is a combustion chamber 102, a leak plate 108 is removably attachable to the combustion chamber 102. Specifically, the leak plate 108 is attachable to a leak plate opening 104 in a housing 105. When the leak plate 108 is attached, a test side 120 of the leak plate 108 forms a portion of the internal chamber 106 of the combustion chamber 102. Gaseous fuel is thereby introduced into the internal chamber 106 through the test opening 110. Furthermore, a supply side 118 of the leak plate 108 forms a portion of the exterior surface of the combustion chamber 102. Thus, when the leak plate 108 is attached to the combustion chamber 102, the combustion chamber 102 provides a controlled, contained environment for the combustion reaction.

[0036]

[0044] The gas supply line 112 can be coupled to the supply side 118 of the leak plate 108. When coupled to the leak plate 108, the gas supply line 112 supplies gaseous fuel into the combustion environment 101 through the test opening 110. The gas supply line 112 includes any of a variety of devices, such as a valve or pipe, for supplying the gaseous fuel from a storage container to the leak plate 108. The storage container contains the gaseous fuel or precursor, such as a cryogenic liquid. In some embodiments, the gas supply line 112 includes a valve for regulating the pressure and / or flow rate of the gaseous fuel, allowing for control of the test conditions to obtain accurate results. Alternatively, or in addition, the size of the test opening 110 can be used to regulate the flow rate of the gaseous fuel. For example, the gas supply line 112 can regulate the flow rate of the gaseous fuel through the test opening 110, such that the flow rate is 1 mmol / sec or less. In other embodiments, the flow rate of the gaseous fuel through the test opening 110 is between 0.1 mmol / sec and 5 mmol / sec, for example, in certain embodiments, between 0.1 mmol / sec and 1 mmol / sec, and in other embodiments, between 0.1 mmol / sec and 0.5 mmol / sec. The gas supply line 112 can accommodate a variety of gaseous fuels, allowing the microburner 100 to be used to test a variety of gaseous fuels.

[0037]

[0045] The ignition source 114 is within the combustion environment 101 and is configured to initiate a combustion reaction between the reactant gas and the gaseous fuel within the combustion environment 101. That is, the ignition source 114 provides the spark or high-energy discharge required to ignite the gas mixture. For example, the ignition source 114 may be comprised of an electrode connected to an ignition coil connected to a spark plug, which generates the spark required to ignite the gas mixture. Alternatively, the ignition source 114 may use a torch to provide the required ignition. When the combustion environment 101 is the combustion chamber 102, the ignition source 114 may be located anywhere within the combustion chamber 102, provided that the ignition source 114 is in operative communication with the internal chamber 106 to ignite the combustion reaction.

[0038]

[0046] In some embodiments, at least one sensor 109 is present in the combustion environment 101 and is configured to measure combustion characteristics of the combustion reaction and its effects on surrounding materials. Combustion characteristics may include pressure, temperature, gas concentration, light emission, etc. The at least one sensor 109 may include any of a variety of sensors, including a pressure sensor, an optical sensor, a gas sensor, or a thermal sensor. In some cases, multiple sensors 109 are utilized to simultaneously measure different combustion characteristics. For example, an optical sensor, which may be a camera, may detect light emission from the combustion reaction. This may include measuring the intensity and wavelength of the emitted light, which provides insight into the efficiency and completeness of the reaction. The camera may also capture visual data for further analysis of the flame characteristics and behavior. Additionally, the optical sensor may include a photodetector or a planar laser-induced fluorescence (PLIF) system to visualize the distribution of reactants and products. Additionally, gas sensors may be used to measure the concentration of specific gases in the combustion environment 101. This may include detecting unburned fuel, combustion byproducts, or oxygen levels. These are useful for assessing the efficiency and safety of the combustion process. Additionally, pressure and thermal sensors can measure the physical effects of the combustion reaction on materials within the combustion environment 101, providing data regarding structural integrity and thermal damage.

[0039]

[0047] In some embodiments, the at least one sensor 109 may be at least one thermocouple. The at least one thermocouple is within the combustion environment 101, and in certain embodiments, within the inner chamber 106 of the combustion chamber 102. The thermocouple is configured to measure the temperature of the combustion reaction. That is, the at least one thermocouple aids in assessing the thermal characteristics of the combustion reaction. When used in conjunction with additional equipment, such as a heat flux sensor, the thermocouple can also aid in calculating heat flux, providing detailed insight into the rate of thermal energy transfer.

[0040]

[0048] With particular reference to FIG. 1 , in certain embodiments where the combustion environment 101 is a combustion chamber 102, the combustion chamber 102 may include at least one visualization window 107. The visualization window 107 is configured to allow external observation of the combustion reaction within the internal chamber 106. In other words, the combustion reaction can be monitored from outside the combustion chamber 102, allowing the combustion reaction to be viewed without interfering with the internal environment. Therefore, the visualization window 107 is made of a transparent or translucent, high-temperature-resistant material. For example, a heat-resistant glass such as borosilicate glass or fused silica can withstand the conditions within the internal chamber 106 while providing visibility for observation, allowing the combustion reaction to be monitored in real time without compromising the integrity of the combustion chamber 102. The two visualization windows shown in FIG. 1 are shown in an exploded view for illustrative purposes only, allowing the internal chamber 106 to be viewed. In practice, the visualization window would be attached to the combustion chamber 102 to ensure an airtight seal between the visualization window 107 and the combustion chamber 102.

[0041]

[0049] FIG. 2 illustrates one embodiment of a leakage plate 108 of the micro-burner 100. The leakage plate 108 includes a test opening 110. While the test opening 110 is shown in a central location, it may be located anywhere on the leakage plate 108. In some embodiments not shown, the leakage plate 108 is a single unit with the test opening 110 integrated directly into the leakage plate 108. In other embodiments, the leakage plate 108 is a multi-component assembly and includes a leakage insert 122 and a receiver plate 116. The leakage insert 122 includes the test opening 110 and is selectively attachable to an inner surface 121 of the receiver plate 116, where the inner surface 121 forms a portion of the supply side 118 of the leakage plate 108 when the leakage insert 122 is attached. The outer surface 119 of the receiver plate 116 defines the supply side 118 of the leakage plate 108. The gas supply line 112 is thereby coupleable to an outer surface 119 of the receiver plate 116 to supply gaseous fuel through the test opening 110 of the leak insert 122. Furthermore, the leak insert 122 includes a plurality of receiver mounting couplings 136. The plurality of receiver mounting couplings 136 are attachable to corresponding ones of a plurality of leak mounting couplings 138 of the receiver plate 116 to attach the leak insert 122 to the receiver plate 116. The receiver plate 116 includes a fuel inlet port 129 coupleable to the gas supply line 112 to allow gaseous fuel to be introduced through the fuel inlet port 129 of the receiver plate 116 and into the test opening 110 of the leak insert 122.

[0042]

[0050] When the leakage insert 122 is attached to the receiver plate 116, a seal is formed between the two components to ensure that gaseous fuel is effectively directed through the test opening 110 without unintentional leakage. The seal may utilize any of a variety of sealing mechanisms, such as an O-ring, a rubber gasket, a copper gasket, or other suitable material, to ensure an airtight connection between the leakage insert 122 and the receiver plate 116. In certain embodiments, the sealing mechanism uses an O-ring 130 in an O-ring slot 128 in the receiver plate 116.

[0043]

[0051] When the combustion environment 101 is a combustion chamber 102, the receiver plate 116 may include a number of chamber mounting couplings 140. The multiple chamber mounting couplings 140 allow the receiver plate 116 to be securely attached to the combustion chamber 102. The secure attachment forms a seal between the receiver plate 116 and the combustion chamber 102, ensuring that the interior chamber 106 is properly sealed for the combustion reaction. The chamber mounting couplings 140 may include any of a variety of couplings, such as screws, bolts, clamps, or simply openings that allow for the insertion of such fasteners.

[0044]

[0052] In some embodiments, the microburner 100 includes multiple leak plates, whereby each leak plate 108 is interchangeable with another leak plate of the multiple leak plates, whereby each leak plate has a different sized test opening. Each leak plate of the multiple leak plates is individually connectable to the gas supply line 112, whereby a selected one of the multiple leak plates is connected to the gas supply line 112 to configure the microburner 100. The interchangeability of the leak plates 108 allows for varying test conditions (e.g., the size and shape of the test opening) without requiring multiple microburners. By removing and replacing the leak plate 108 on the microburner 100, tests can simulate microleaks of different sizes and observe microleaks of different sizes under consistent test conditions. In some embodiments, the leak plate 108 is interchangeable with another leak plate 108, whereby the entire leak plate 108 is replaced with another leak plate. For example, a first leak plate is interchangeable with a second leak plate. In this case, the size of the test opening 110 in the first leak plate is different from the size of the test opening 110 in the second leak plate. In other embodiments, when using a leak plate having a multi-component assembly such as that shown in FIG. 2, rather than replacing the entire leak plate 108, only the leak insert 122 is interchangeable with another leak insert 122. The receiver plate 116 is thereby reused with each leak insert 122.

[0045]

[0053] The test opening 110 can be any of a variety of shapes and sizes. In some embodiments, the area of ​​the test opening 110 is 5 mm 2 In another embodiment, the area is 0.01 mm 2 From 32mm 2 For example, in some embodiments, 0.1 mm 2 from 10mm 2 In other embodiments, 0.1 mm 2 from 5mm2 The different sizes and shapes allow for simulating various leak scenarios, providing flexibility in testing different conditions. That is, each test opening 110 in the interchangeable leak plate or interchangeable leak insert is designed to simulate a distinct micro-leak, ensuring that the micro-burner 100 can be used to test a wide range of leak scenarios. For example, as shown in FIGS. 3A and 3C, in certain embodiments, the test opening 110 in the leak insert 122 can be a pinhole 124 or a slot 126.

[0046]

[0054] 3A and 3B, the pinhole 124 in the leak insert 122 is a small hole having a diameter that extends entirely through the width W1 of the leak insert 122. Specifically, the test opening 110 extends from the receiver mating surface 132 to the supply surface 134 of the leak insert 122. Note that the pinhole 124 and the leak insert 122 are not necessarily drawn to scale. For example, in the illustrated renderings, the pinhole 124 is large relative to the size of the leak insert 122 for clarity in illustrating and describing the present invention. In some embodiments, the diameter of the pinhole 124 is between 0.001 inches and 0.25 inches, e.g., in one embodiment, between 0.002 inches and 0.1 inches, and in other embodiments, between 0.005 inches and 0.05 inches. For example, multiple leakage inserts may have corresponding pinholes 124 with diameters of 0.002 inches, 0.008 inches, 0.015 inches, 0.040 inches, 0.080 inches, 0.1 inches, 0.25 inches, etc.

[0047]

[0055] As shown in FIG. 3C , the test opening 110 in the leak insert 122 is a slot 126. The slot 126 is an elongated opening having a width and a length that extends through the width W1 of the leak insert 122. The slot 126 allows for a different type of microleak simulation compared to the pinhole 124 because the elongated shape can simulate cracks or larger gaps rather than small punctures. The slot 126 extends from the receiver mating face 132 to the delivery face 134 of the leak insert 122. As with the pinhole 124, the dimensions of the slot 126 are not necessarily to scale because the size of the slot 126 has been exaggerated relative to the size of the leak insert 122 for better clarity. In some embodiments, the area of ​​the slot is 32 mm 2 Thus, in some embodiments, the width of slot 126 is between 0.001 inches and 0.1 inches, for example, in one embodiment, between 0.002 inches and 0.25 inches, the length of slot 126 is between 2 and 50 times the width of the slot, and the total area of ​​slot 126 is less than 32 mm. 2 This ensures that the leakage insert 122 remains less than 1 / 2 mm. Additionally, in some embodiments, the feed face 134 of the leakage insert 122 has a non-planar surface to allow for testing the effect of three-dimensional curvature on the combustion reaction. A non-planar surface can potentially introduce complex flow dynamics of the gaseous fuel into the combustion environment 101, more accurately simulating real-world conditions. This can be useful in understanding how variations in surface geometry affect combustion efficiency, flame propagation, and heat transfer.

[0048]

[0056] 4A-4C, another embodiment of a leak insert 122 having a slot 126 is shown. The leak insert 122 is configured to be selectively attached to the receiver plate 116, as shown in FIG. 2. The leak insert 122 is a two-piece assembly, shown exploded in FIG. 4A and separately in FIG. 4B, including a slot insert receiver 142 and a slot insert 144. Specifically, the slot insert receiver 142 has a recess 146. The slot insert 144 is sized to fit within the recess 146. When the slot insert 144 fits within the recess 146, the slot 126 is defined between a first slot surface 148 of the slot insert receiver 142 and a second slot surface 152 of the slot insert 144. The size of the slot 126 can be adjusted by changing the slot insert 144 and reusing the slot insert receiver 142. In other words, both the receiver plate 116 and the slot insert receiver 142 of the leakage insert 122 are reused for each test, with only the slot inserts 144 being interchangeable to adjust the size of the slot 126 for different test parameters. That is, each slot insert 144 has a different size, resulting in a variation in the spacing between the first slot surface 148 of the slot insert receiver 142 and the second slot surface 152 of the slot insert 144 for each slot insert 144. This allows for variable slot sizes and flexible testing by interchanging the slot inserts 144 without having to replace the entire assembly. The slot insert 144 includes multiple slot insert couplings 154 that are attachable to corresponding ones of multiple receiver couplings 156 of the slot insert receiver 142 to attach the slot insert 144 to the slot insert receiver 142.

[0049]

[0057] The slot insert receiver 142 includes a slot opening 150. The slot opening 150 extends from the recess 146 through the remainder of the width W2 of the slot insert receiver 142. As shown in FIG. 4C , the slot opening 150 is in fluid communication with the slot 126, thereby allowing gaseous fuel to enter the slot opening 150 and pass through the slot 126. That is, the gaseous fuel flows from the receiver mating surface 132 of the leakage insert 122 through the delivery surface 134 of the leakage insert 122.

[0050]

[0058] 5, a method 300 for testing a combustion reaction in a micro-burner 100 is shown, according to some embodiments. The method 300 includes supplying (block 302) a gaseous fuel into the combustion environment 101 through the test opening 110 in the leak plate 108. Specifically, a gas supply line 112 is connected to the fuel inlet portion 129 of the leak plate 108 and supplies the gaseous fuel through the test opening 110 in the leak plate 108 into the combustion environment 101. The gas supply line 112 may include a number of valves and flow control mechanisms to regulate the flow rate and pressure of the gaseous fuel.

[0051]

[0059] The method 300 also includes activating (block 304) the ignition source 114 to initiate a combustion reaction between the reactant gas and the gaseous fuel within the combustion environment 101. The ignition source 114 is in operative communication with the combustion environment 101. The ignition source 114 is configured to provide a spark to initiate a combustion reaction between the gas mixture.

[0052]

[0060] The method 300 further includes monitoring the combustion reaction within the combustion environment 101 (block 306). The combustion reaction can also be monitored visually. Additionally or alternatively, the combustion reaction can be monitored using at least one sensor 109 to measure combustion characteristics of the combustion reaction. The sensors can include pressure sensors, optical sensors (e.g., cameras), gas sensors, and thermal sensors (e.g., thermocouples). Data can be collected in real time from the at least one sensor during the combustion reaction to provide information such as pressure changes, temperature fluctuations, gas concentrations, and light emissions. A camera can be used to visually monitor the combustion reaction and observe flame characteristics, reaction stability, and any abnormalities that may occur. Additionally, when the combustion environment 101 is a combustion chamber 102, the combustion chamber 102 can include a visualization window 107 to allow the combustion reaction to be observed from the outside.

[0053]

[0061] In embodiments in which the combustion environment 101 is a combustion chamber 102, the method may include removably attaching a leakage plate 108 to the combustion chamber 102. The leakage plate 108 is attached to the leakage opening 104 to seal the interior chamber 106 of the combustion chamber 102. The leakage plate 108 may be attached to the combustion chamber 102 using a chamber mounting coupling 140. The chamber mounting coupling 140 may include various types of couplings, such as screws, clamps, and other fastening mechanisms. The seal between the leakage plate 108 and the combustion chamber 102 is airtight, ensuring that the combustion reaction is contained within the interior chamber 106.

[0054]

[0062] In some embodiments, the leak plate 108 of the microburner 100 is interchangeable with other leak plates 108. Each leak plate has a corresponding different test opening. That is, the microburner 100 can be used for testing with leak plates 108 having different sized test openings 110. Specifically, after any combustion reaction in the combustion environment 101 is completed, the leak plate 108 can be removed from the combustion chamber 102 and replaced with a second leak plate. The second leak plate has a test opening 110 of a different size than the test opening of the leak plate 108, allowing multiple tests to be conducted under various test size conditions. Interchangeable leak plates provide flexibility in testing different scenarios and obtaining a wide range of data. Specifically, a gas supply line 112 can be attached to the second leak plate, and an ignition source can be activated to initiate a subsequent combustion reaction between the reactant gas and the gaseous fuel. The gaseous fuel is introduced into the combustion environment 101 through the test opening 110 of the second leak plate.

[0055]

[0063] Alternatively, in some embodiments, the leak plate 108 is a multi-component assembly including a receiver plate 116 and a leak insert 122. The receiver plate 116 is selectively attached to the gas supply line 112 during the combustion reaction to supply gaseous fuel into the combustion environment 101. After the combustion reaction in the combustion environment 101 is completed, the leak insert 122 can be removed from the receiver plate 116 and replaced with a second leak insert 122 having a different size test opening 110. That is, the receiver plate 116 can be reused with different leak inserts to allow multiple tests to be conducted under various test size conditions. The receiver plate 116 with the second leak insert can then be attached to the gas supply line, and an ignition source can be activated to initiate a subsequent combustion reaction between the reactant gas and the gaseous fuel. The gaseous fuel is introduced into the combustion environment 101 through the test opening 110 in the second leak insert 122.

[0056]

[0064] In the above description, certain terms may be used, such as "up," "down," "upper," "lower," "horizontal," "vertical," "left," "right," "over," "under," etc. These terms are used where appropriate to provide some clarity to the description when referring to interrelationships. However, these terms are not intended to imply absolute relationships, positions, and / or orientations. For example, with respect to an object, the "upper" surface may become the "lower" surface simply by turning the object upside down. It is still the same object. Furthermore, the words "including," "comprising," "having," and variations thereof mean "including, but not limited to" (unless expressly stated otherwise). Listed items do not imply that any or all of the items are mutually exclusive and / or inclusive, unless expressly stated otherwise. Terms such as "a," "an," and "the" also mean "one or more" unless expressly stated otherwise. Additionally, the term "plurality" may be defined as "at least two."

[0057]

[0065] Furthermore, in this specification, an instance where one element is "coupled" to another element may include direct and indirect coupling. A direct coupling may be defined as one element being connected to another element and having some contact with the other element. An indirect coupling may be defined as a coupling between two elements that are not in direct contact with each other but have one or more additional elements between the coupled elements. Furthermore, in this specification, fixing one element to another element may include direct fixing and indirect fixing. In addition, as used herein, "adjacent" does not necessarily mean contact. For example, one element may be adjacent to another element without touching it.

[0058]

[0066] As used herein, the phrase "at least one of" when used in conjunction with a list of items means that various combinations of one or more of the listed items can be used, and that only one of the listed items may be required. An item may be a specific object, article, or category. In other words, "at least one of" means that any combination or number of items from the list can be used, but not all of the listed items are required. For example, "at least one of item A, item B, and item C" may mean, e.g., "item A," "item A and item B," "item B," "item A, item B, and item C," or "item B and item C." In some cases, "at least one of item A, item B, and item C" may mean, for example, without limitation, "two item A, one item B, and ten item C," "four item B, and seven item C," or other suitable combinations.

[0059]

[0067] Unless otherwise indicated, the terms "first," "second," etc. are used herein merely as designators and are not intended to impose any sequential, positional, or hierarchical requirements on the items they refer to. Furthermore, a reference to, e.g., a "second" item does not require or exclude the presence of, e.g., a "first" or lower numbered item and / or, e.g., a "third" or higher numbered item.

[0060]

[0068] As used herein, a system, device, structure, article, element, component, or hardware that is "configured to" perform a specified function does not mean that it is, in fact, capable of performing the specified function without any modification and may merely perform the specified function after further modification. In other words, a system, device, structure, article, element, component, or hardware that is "configured to" perform a specified function is specifically selected, created, implemented, utilized, programmed, and / or designed for the purpose of performing the specified function. As used herein, the phrase "configured to" refers to the existing characteristics of a system, device, structure, article, element, component, or hardware that enable the system, device, structure, article, element, component, or hardware to perform a particular function without further modification. In this disclosure, a system, device, structure, article, element, component, or hardware described as being "configured to" perform a particular function may additionally or alternatively be described as being "adapted to" and / or "operative to" perform that function.

[0061]

[0069] While in some embodiments, the terms "about" or "substantially" are defined to mean within + / - 5% of a given value, in further embodiments, any disclosure of "about" can be further narrowed and claimed to mean within + / - 4% of a given value, within + / - 3% of a given value, within + / - 2% of a given value, within + / - 1% of a given value, or the exact given value. Furthermore, when at least two values ​​of a variable are disclosed, such disclosure is specifically intended to include a range between the two values, whether or not disclosed in terms of separate embodiments or examples thereof, and is specifically intended to include a range up to and including at least the lower of the two values ​​and / or a range up to and including the higher of the two values. Furthermore, when at least three values ​​of a variable are disclosed, such disclosure is specifically intended to include ranges between any two of the values, whether or not they are disclosed with respect to separate embodiments or examples, and is specifically intended to include ranges up to and including at least value A and / or value B, where A can be any of the disclosed values ​​other than the maximum disclosed value, and B can be any of the disclosed values ​​other than the minimum disclosed value.

[0062]

[0070] The schematic flow diagrams included herein are generally defined as logical flow diagrams. As such, the depicted order and labeled steps represent one embodiment of the presented method. Other steps and methods may be conceived that are equivalent in function, logic, or effect to one or more steps, or portions thereof, of the depicted method. Additionally, it is understood that the format and symbols used are provided to describe the logical steps of the method and do not limit the scope of the method. While various types of arrows and lines may be used in the flow diagrams, these are not intended to limit the scope of the corresponding method. In fact, some arrows or other connectors may be used only to indicate the logical flow of the method. For example, arrows may indicate an indefinite amount of waiting or monitoring time between listed steps of the depicted method. Additionally, the order in which a particular method is performed may or may not strictly follow the order of the corresponding steps depicted.

[0063]

[0071] The subject matter herein may be embodied in other specific forms without departing from its spirit and essential characteristics. The above-described embodiments should be considered in all respects as merely illustrative and not restrictive. All modifications that come within the meaning and range of equivalence of the embodiments herein are to be embraced within the scope of the appended claims.

Claims

1. a leakage plate (108) having a test opening (110) configured to simulate a micro-leak of the gaseous fuel into a combustion environment (101) containing a reactant gas for testing a combustion reaction between the reactant gas and the gaseous fuel in the combustion environment (101); a gas supply line (112) connectable to the leakage plate (108), the gas supply line (112) configured, when connected, to supply the gaseous fuel through the test opening (110) into the combustion environment (101); and A microburner (100) comprising an ignition source (114) configured to initiate the combustion reaction between the reactant gas and the gaseous fuel within the combustion environment (101).

2. The combustion environment (101) comprises a combustion chamber (102), the combustion chamber (102) comprising: a housing (105) defining an internal chamber (106) configured to contain the reactant gas and further contain the combustion reaction between the reactant gas and the gaseous fuel; a leakage plate opening (104) in the housing (105); the leakage plate (108) is removably attachable to the leakage plate opening (104) to close the leakage plate opening (104) and seal the internal chamber (106) of the combustion chamber (102); 2. The micro-burner of claim 1, wherein when the leak plate is attached to the leak plate opening and the gas supply line is coupled to the leak plate, the gas supply line is configured to supply the gaseous fuel through the test opening and into the internal chamber.

3. 3. The micro-burner (100) of claim 2, wherein the combustion chamber (102) further comprises at least one visualization window (107) configured to allow external observation of the combustion reaction within the internal chamber (106).

4. The micro-burner (100) of claim 1, wherein the combustion environment (101) comprises an open-to-air environment.

5. The micro-burner (100) of claim 1, wherein the test opening (110) in the leakage plate (108) is one of a pinhole (124) or a slot (126).

6. The test opening (110) in the leakage plate (108) is 32 mm ２ 10. The micro-burner (100) of claim 1, having an area of:

7. 2. The micro-burner of claim 1, wherein the gas supply line is configured to regulate the flow rate of the gaseous fuel through the test opening in the leakage plate such that the flow rate is 1 mmol / sec or less.

8. a second leak plate (108) having a second test opening (110); the leakage plate (108) and the second leakage plate (108) are interchangeable such that the gas supply line (112) can be individually coupled to a selected one of the leakage plate or the second leakage plate; The micro-burner (100) of claim 1, wherein the size of the test opening (110) in the leakage plate (108) is different from the size of the second test opening (110) in the second leakage plate (108).

9. The leakage plate (108) a receiver plate (116) having an outer surface (119) and an inner surface (121) opposite said outer surface (119); a leakage insert (122) configured to selectively attach to the inner surface (121) of the receiver plate (116) and including the test opening (110); 2. The micro-burner (100) of claim 1, wherein the gas supply line (112) is connectable to the outer surface (119) of the receiver plate (116) to supply the gaseous fuel through the test opening (110) of the leakage insert (122).

10. The leakage insert (122) a slot insert receiver (142) comprising a recess (146) having a first slot surface (148) and a slot opening (150) extending from the recess (146) through a width (W) of the slot insert receiver (142); 10. The micro-burner of claim 9, further comprising a slot insert having a second slot surface sized to fit within the recess of the slot insert receiver such that the test opening is defined between the first slot surface of the slot insert receiver and the second slot surface of the slot insert.

11. The leakage insert (122) has a receiver mating surface (132) and a supply surface (134) opposite the receiver mating surface (132); The micro-burner (100) of claim 9, wherein the delivery face (134) of the leakage insert (122) has a non-planar surface.

12. The micro-burner (100) of claim 1, further comprising at least one thermocouple in the combustion environment (101) configured to measure a temperature of the combustion reaction.

13. and further comprising at least one sensor (109) in the combustion environment (101) configured to measure a combustion characteristic of the combustion reaction; The micro-burner (100) of claim 1, wherein the at least one sensor (109) comprises at least one of a pressure sensor, an optical sensor, a gas sensor, or a thermal sensor.

14. The micro-burner (100) of claim 1, wherein the gaseous fuel is hydrogen gas.

15. A leakage plate (108) for a microburner (100), comprising: a receiver plate (116) having an outer surface (119) and an inner surface (121) opposite said outer surface (119); a leakage insert (122) having a test opening (110) configured to simulate a microleak of gaseous fuel into the combustion environment (101); The leakage insert (122) is removably attachable to the inner surface (121) of the receiver plate (116); A leakage plate (108) in which, when the leakage insert (122) is attached to the inner surface (121) of the receiver plate (122), a gas supply line (112) is connectable to the outer surface (119) of the receiver plate (116) so as to supply the gaseous fuel through the test opening (110) into the combustion environment (101) to test a combustion reaction between a reactant gas and the gaseous fuel.

16. The leakage plate (108) of claim 15, wherein the test opening (110) is one of a pinhole (124) or a slot (126).

17. a second leakage insert (122) comprising a second test opening (110) configured to simulate a microleak of the gaseous fuel into the combustion environment; the second leakage insert (122) is removably attachable to the inner surface (121) of the receiver plate (116); the leakage insert (122) and the second leakage insert (122) are interchangeable such that a selected one of the leakage insert (122) or the second leakage insert (122) can be individually attached to the inner surface (121) of the receiver plate (116) to test a corresponding combustion reaction between the reactant gas and the gaseous fuel; 16. The leakage plate (108) of claim 15, wherein a size of the test opening (110) of the leakage insert (122) is different from a size of the second test opening (110) of the second leakage insert (122).

18. A method (300) for testing combustion reactions in a microburner (100), comprising: supplying (302) a gaseous fuel into a combustion environment (101) through a test opening (110) in a leakage plate (108), the test opening (110) being configured to simulate a micro-leak of the gaseous fuel into the combustion environment (101); activating (304) an ignition source (114) to initiate the combustion reaction between the reactant gas and the gaseous fuel within the combustion environment (101); and A method (300) comprising monitoring (306) the combustion reaction within the combustion environment (101).

19. removing a gas supply line (112) from the leak plate (108) after the combustion reaction is completed, the gas supply line (112) being configured to supply the gaseous fuel; selectively attaching a second leakage plate (108) to the gas supply line (112) to supply the gaseous fuel into the combustion environment (101) through a second test opening (110) in the second leakage plate (108), the second test opening (110) being configured to simulate a microleak of the gaseous fuel into the combustion environment (101), the size of the second test opening (110) in the second leakage plate (108) being different from the size of the test opening (110) in the leakage plate (108); activating the ignition source (114) to initiate a subsequent combustion reaction between the reactant gas and the gaseous fuel within the combustion environment (101); and The method (300) of claim 18, further comprising monitoring the subsequent combustion reaction within the combustion environment (101).

20. removing the leak insert (122) having the test opening (110) from the receiver plate (116) of the leak plate (108) after the combustion reaction is completed; selectively attaching a second leak insert (122) having a second test opening (110) to the receiver plate (116) of the leak plate (108), wherein the size of the second test opening (110) in the second leak insert (122) is different from the size of the test opening (110) in the leak insert (122); supplying the gaseous fuel into the combustion environment (101) through the second test opening (110) of the leakage insert (122) of the leakage plate (108), the second test opening (110) being configured to simulate a micro-leak of the gaseous fuel into the combustion environment (101); activating the ignition source (114) to initiate a subsequent combustion reaction between the reactant gas and the gaseous fuel within the combustion environment (101); and The method (300) of claim 18, further comprising monitoring the subsequent combustion reaction within the combustion environment (101).

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