Device for flame testing materials
A compact flame testing device with an elongate transparent material and adjustable components enhances sample throughput and data resolution, addressing the limitations of large-scale Steiner tunnels by allowing for efficient testing of smaller samples with improved observation.
Patent Information
- Application Number
- PCT/US2024/058318
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-07
- Filing Date
- 2024-12-04
- Publication Date
- 2025-06-12
AI Technical Summary
Existing flame testing devices, such as Steiner tunnels, are large-scale and limited in the number of samples they can test within a timeframe, requiring larger sample sizes and resulting in lower data resolution due to obstructed views and inefficient flame propagation observation.
A compact device for flame testing materials featuring an elongate transparent material, a burner, and adjustable elongate walls with restraints, an air inlet section with a pressurized air input and flow distributor, and a rotator for varied testing angles, allowing for improved flame propagation observation and increased sample testing capacity.
The device enables more efficient flame testing by allowing for smaller sample sizes, increased sample throughput, and improved data resolution due to continuous transparent observation and adjustable testing conditions, providing comparable results to larger Steiner tunnels.
Smart Images
Figure US2024058318_12062025_PF_FP_ABST
Abstract
Description
DEVICE FOR FLAME TESTING MATERIALSField of Disclosure
[0001] This disclosure relates to devices that can be utilized for flame testing materials and methods for using them.Background
[0002] A number of devices, such as a Steiner tunnel, have been utilized for flame testing of materials. Generally, these materials are placed in the device and then are exposed to combustion in order to determine one or more burning behaviors of the material.
[0003] An example of a standard burn test is ASTM E 84, which utilizes a fire test chamber that is a rectangular cross-section, horizontal tunnel or duct having multiple windows spaced longitudinally along the sides of the tunnel’s length.Brief Description of the Drawings
[0004] Figure 1 is an illustration of a portion of a device for flame testing materials in accordance with a number of embodiments of the present disclosure.
[0005] Figure 2 is an illustration of an exploded view of a portion of a device for flame testing materials in accordance with a number of embodiments of the present disclosure.
[0006] Figure 3 is an illustration of a cross section of a portion of a device for flame testing materials in accordance with a number of embodiments of the present disclosure.Summary
[0007] The present disclosure provides various embodiments, including the following. In some embodiments, the present disclosure relates to a device for flame testing materials, the device including: an elongate transparent material; a burner that extends in a normal direction relative to a major surface of the elongate transparent material; a first elongate wall adjacent to the elongate transparent material, wherein the first elongated wall is removably coupled to the elongate transparent material and the first elongate wall includes a first restraint configured to restrain a flame testable material; a second elongate wall adjacent the elongate transparent material, wherein the secondelongate wall is separated from the first elongate wall by the elongate transparent material, the second elongate wall is removably coupled to the elongate transparent material, and the second elongate wall includes a second restraint configured to restrain the flame testable material; an elongate cover removably attached to the first elongate wall and the second elongate wall; an input flange coupled to the first elongate wall and the second elongate wall; an output flange coupled to the first elongate wall and the second elongate wall; and an air inlet section coupled to the input flange, wherein the air inlet section includes a pressurized air input and a flow distributor that is located between the pressurized air input and the burner.Detailed Description
[0008] There is a need for devices that can be utilized for flame testing materials and methods for using them. Advantageously, the present disclosure provides devices for flame testing materials, the devices including an elongate transparent material; a burner that extends in a normal direction relative to a major surface of the elongate transparent material; a first elongate wall coupled to the elongate transparent material, wherein the first elongate wall extends in the normal direction relative to the major surface of the elongate transparent material, wherein the first elongate wall includes a first restraint configured to restrain a flame testable material; a second elongate wall coupled to the elongate transparent material, wherein the second elongate wall extends in the normal direction relative to the major surface of the elongate transparent material, wherein the second elongate wall includes a second restraint configured to restrain the flame testable material; an elongate cover removably attached to the first elongate wall and the second elongate wall; an input flange coupled to the elongate transparent material, the first elongate wall, and the second elongate wall; an output flange coupled to the elongate transparent material, the first elongate wall, and the second elongate wall; and an air inlet section coupled to the input flange, wherein the air inlet section includes a pressurized air input and a flow distributor that is located between the pressurized air input and the burner.
[0009] Previous devices, e.g., a Steiner tunnel, utilized for flame testing materials are large-scale devices, which can limit the number of samples that can be tested within a particular timeframe. Advantageously, the devices disclosed herein are different than Steiner tunnels, one difference being that the devices disclosed herein are relatively smaller than Steiner tunnels, which can provide an improved, i.e., increased,tested material count within a particular timeframe, particularly for testing compatible to ASTM E 84 testing. This improved, i.e., increased, tested material count can provide that relatively more specimens for each sampled material are tested, which can help provide more representative data for the tested material. Additionally, ASTM E 84 testing with a Steiner tunnel requires relatively larger sample sizes, e.g., 24-foot-long samples, as compared to samples tested with the devices for flame testing materials, as disclosed herein. These relatively larger samples can be burdensome and have relatively higher associated costs.
[0010] Previous devices, e.g., a Steiner tunnel, utilized for flame testing materials are susceptible to relatively lower data resolution from flame testing, as compared to samples tested with the devices for flame testing materials disclosed herein. For instance, as a Steiner tunnel has multiple windows spaced longitudinally along the sides of the tunnel’s length there are a number of locations along the tunnel’s length having obstructed views, i.e., locations along the tunnel’s length where a window is not located. In contrast to these previous devices, advantageously the devices disclosed herein include an elongate transparent material that is continuous, which can provide an improved, i.e., reduced, susceptibly to potentially erroneous results from flame testing. The Steiner tunnel, as mentioned, has blind spots from the broken windows of the Steiner tunnel, but also because views are performed from the side of the Steiner Tunnel, in contrast to views from the elongate transparent material as discussed herein, a flame that is next to a Steiner tunnel window un-advantageously prevents viewing beyond that flame.
[0011] Figure 1 is an illustration of a portion of device 100 for flame testing materials in accordance with a number of embodiments of the present disclosure. As shown in Figure 1 , the device 100 includes a testing region 102. The testing region can be utilized to expose a material to combustion, e.g., flame test a material. As discussed further herein, the device 100 can include an elongate transparent material, a burner, a first elongate wall 132, a second elongate wall 232 (as shown in Figure 2), an elongate cover 106, an input flange 108, an output flange 110, an air input section 112 including a pressurized air input 113, a viewing mirror 114, and a rotator 1 16.
[0012] Embodiments provide that the rotator 1 16 is configured to rotate the device 100, e.g., a major surface of the elongate transparent material as discussed further herein, from 0° to 360°. The rotator can help provide that different angles of combustion, relative to the material being flame tested, can be utilized. Additionally, therotator can help provide that different angles of flame propagation, relative to the material being flame tested, can be utilized.
[0013] The device 100 can be mounted. Various known mounts may be utilized. As shown in Figure 1 , the device can be mounted to a frame 118. Known frames may be utilized. As shown in Figure 1 , frame 118 can include wheels 120-1 , 120-2, 120-3, 120- 4., for instance One or more embodiments provide that wheels 120-1 , 120-2, 120-3, 120- 4 are lockable.
[0014] Figure 2 is an illustration of an exploded view of a portion of a device 100 for flame testing materials in accordance with a number of embodiments of the present disclosure. As mentioned, the device 100 includes an elongate transparent material 224. One or more embodiments provide that the elongate transparent material 224 is glass. Embodiments provide that the elongate transparent material 224 is continuous, e.g., the elongate transparent material is unbroken by another material along its entire length and width.
[0015] The elongate transparent material 224 includes a major surface 226. The major surface 226 can be referred to as an interior surface, e.g., the major surface 226 helps to define a volume, along with the cover 106, the first elongate sidewall 132, and the second elongate wall 232, wherein a material being flame tested is exposed to combustion.
[0016] As used herein, “elongate” indicates that a component has a length that is greater than its width. The elongate transparent material 224 can have a length 228 from 0.2 meters (m) to 2.5 m. All individual values and subranges from 0.2 m to 2.5 m are included; for example, the elongate transparent material can have a length from a lower limit of 0.2 m, 0.5 m, or 0.7 m an upper limit of 2.5 m, 2 m, or 1 .5 m. The elongate transparent material 224 can have a width 230 from 0.02 m to 0.2 m. All individual values and subranges from 0.02 m to 0.2 m are included; for example, the elongate transparent material can have a length from a lower limit of 0.02 m, 0.05 m, or 0.07 m and upper limit of 0.2 m, 0.18 m, or 0.15 m.
[0017] As mentioned, the device 100 includes a first elongate wall 132 and a second elongate wall 232. The first elongate wall 132 and the second elongate wall 232 can be lipped walls. The first elongate wall 132 can include a first lip 234-1 and a second lip 234-2. The second elongate wall 232 can include a first lip 236-1 and a second lip 236-2. The first lip 234-1 and the second lip 234-2 can be perpendicular relative to the first elongate wall 232. The first lip 236-1 and the second lip 236-2 can be perpendicularrelative to the second elongate wall 232. The elongate walls, including the respective first and second lips, can have a “C profile”.
[0018] The first elongate wall 132 and the second elongate wall 232 can each have a length 238 from 0.3 m to 2.5 m. All individual values and subranges from 0.3 to 2.5 m are included; for example, the first elongate wall and the second elongate wall can each have a length from a lower limit of 0.3 m, 0.5 m, or 0.6 m an upper limit of 2.5 m, 2 m, or 1 .5 m. Embodiments provide that the first lip 234-1 , the second lip 234-2, the first lip 236-1 , and the second lip 236-2 each have the length 238.
[0019] The first elongate wall 132 and the second elongate wall 232 can each have a width 240 from 0.02 m to 0.2 m. All individual values and subranges from 0.02 m to 0.2 m are included; for example, the first elongate wall and the second elongate wall can each have a length from a lower limit of 0.02 m, 0.04 m, or 0.07 m an upper limit of 0.2 m, 0.17 m, or 0.15 m.
[0020] Embodiments provide that the first lip 234-1 , the second lip 234-2, the first lip 236-1 , and the second lip 236-2 are each elongate lips. The first lip 234-1 , the second lip 234-2, the first lip 236-1 , and the second lip 236-2 can each have a width 242 from 0.04 m to 0.08 m. All individual values and subranges from 0.04 m to 0.08 m are included; for example, the first lip 234-1 , the second lip 234-2, the first lip 236-1 , and the second lip 236-2 can each have a length from a lower limit of 0.04 m, 0.045 m, or 0.05 m an upper limit of 0.08 m, 0.07 m, or 0.06 m. One or more embodiments provide that the first lip 234-1 and the first lip 236-1 have a same first lip width and the second lip 234-2 and the second lip 236-2 have a same second lip width, where the same first lip width is the same as the same second lip width. One or more embodiments provide that the first lip 234-1 and the first lip 236-1 have a same first lip width and the second lip 234-2 and the second lip 236-2 have a same second lip width, where the same first lip width is different than the same second lip width.
[0021] One or more embodiments provide that the first elongate wall 132 and the second elongate wall 232 are opaque materials, e.g., stainless steel. One or more embodiments provide that the first elongate wall 132 and the second elongate wall 232 are continuous opaque materials, e.g., the first elongate wall and the second elongate wall are each respectively unbroken by another material along their entire length and width.
[0022] As mentioned, the device 100 includes an elongate cover 106. The elongate cover 106 can have a length 244 from 0.1 m to 2.5 m. All individual values andsubranges from 0.1 m to 2.5 m are included; for example, the elongate cover can have a length from a lower limit of 0.1 m, 0.5 m, or 0.7 m an upper limit of 2.5 m, 2 m, or 1 .5 m. The elongate cover 106 can have a width 246 from 0.02 m to 0.3 m. All individual values and subranges from 0.02 m to 0.3 m are included; for example, the elongate transparent material can have a length from a lower limit of 0.02 m, 0.05 m, or 0.06 m an upper limit of 0.3 m, 0.25 m, or 0.24 m.
[0023] Embodiments provide that the elongate cover 106 can be removably attached to the first elongate wall 132 and the second elongate wall 232. Various known attachments can be utilized. Embodiments provide that the elongate cover can be removed from the first elongate wall 132 and the second elongate wall 232 to load a flame testable material into the device 100, e.g., placed onto and restrained onto the first lip 234-1 and / or the first lip 236-1 . One or more embodiments provide that insulation can be utilized to separate the elongate cover 106 and the flame testable material. After the flame testable material is loaded, the elongate cover 106 can be attached to the first elongate wall 132 and the second elongate wall 232 for flame testing of the flame testable material, e.g., exposing the flame testable material to combustion. The elongate cover 106 can be attached to the first elongate wall 132 and the second elongate wall 232 by clips and / or bands and / or other attachment devices. After the flame testing, the elongate cover can be removed from the first elongate wall 132 and the second elongate wall 232 to remove tested remnants and / or clean the device 100, for example.
[0024] As shown in Figure 2, the first lip 234-1 and / or the first lip 236-1 can include a number of flame testable material restraints 248-1 , 248-2, 248-3, 248-4, 248-5, 248-6. While Figure 2 shows six flame testable material restraints, embodiments are not so limited. For example, one or more embodiments provide that fewer than six flame testable material restraints are utilized; one or more embodiments provide that greater than six flame testable material restraints are utilized. Various known restraints can be utilized. One or more embodiments provide that the flame testable material restraints are rotatable Z clips. The number of flame testable material restraints can be utilized to removably attach the flame testable material to the first lip 234-1 and / or the first lip 236- 1 . In other words, the number of flame testable material restraints can be utilized to secure the flame testable material to the first lip 234-1 and / or the first lip 236-1 while the flame testable material is exposed to combustion.
[0025] While not shown in Figure 2, one or more embodiments provide that the second lip 234-2 and / or second lip 236-2 can include a number of elongate transparentmaterial restraints. The number of elongate transparent material restraints can be utilized to removably attach the elongate transparent material to the second lip 234-2 and / or the second lip 236-2. In other words, the number of elongate transparent material restraints can be utilized to secure the elongate transparent material to the second lip 234-2 and / or the second lip 236-2 while the flame testable material is exposed to combustion. The number of elongate transparent material restraints can be utilized to release the elongate transparent material from the second lip 234-2 and / or the second lip 236-2, e.g., to clean the elongate transparent material. Various known restraints can be utilized. Various numbers of restraints may be utilized. One or more embodiments provide that the elongate transparent material restraints are rotatable Z clips.
[0026] As mentioned, the device 100 includes a burner 250. Various known burners can be utilized. One or more embodiments provide that burner 250 is a sole burner. In other words, one or more embodiments provide that burner 250 is the only combustion source for device 100.
[0027] Embodiments provide that the burner 250 is power adjustable. When operating, the burner may provide a power from 0.3 to 12.5 KW. All individual values and subranges from 0.3 to 12.5 KW are included; for example, the burner may provide a power from a lower limit of 0.3, 1 .5, or 3.0 KW an upper limit of 12.5, 1 1 .0, or 10.0 KW.
[0028] One or more embodiments provide that the burner 250 is provided with propane and oxygen for combustion. Known components, e.g., tanks, tubing, regulators, flame arrestors, and valves, for instance, may be utilized to provide propane and oxygen to the burner.
[0029] The burner 250 may be height adjustable. The burner may have a height, i.e. , a vertical height, from 0.01 m to 0.1 m relative to a burner mount 252. All individual values and subranges from 0.01 m to 0.1 m are included; for example, the burner can have a height from a lower limit 0.01 m, 0.03 m, or 0.04 m an upper limit of 0.1 m, 0.07 m, or 0.06 m relative to the burner mount. The burner 250 may be length adjustable. For example, the burner may be adjustable along the length of the device 100, e.g., along length 238. Adjusting the burner 250 lengthwise can provide that flame testing occurs at various points of the flame testable sample.
[0030] Embodiments provide that the burner 250 extends in a normal direction254 relative to the major surface 226 of the elongate transparent material 224. In other words, the burner 250 extends perpendicularly relative to the major surface 226 of the elongate transparent material 224.
[0031] Embodiments provide that the burner mount 252 may be utilized to attach the burner 250 to the second lip 234-2 of the first wall 132, the second lip 236-2 of the second wall 232 and / or the elongate transparent material 224. As an example, the burner mount 252 may be bolted to the second lip 234-2 of the first wall 132, the second lip 236-2 of the second wall 232, and / or the elongate transparent material 224.
[0032] As mentioned, the device 100 includes an input flange 108.Embodiments provide that pressurized air can be input to a volume wherein a material being flame tested is exposed to combustion. The input flange can be coupled to the first elongate wall 132 and the second elongate wall 232.
[0033] The input flange 108 can have an interior width from 0.02 m to 0.2 m. All individual values and subranges from 0.02 m to 0.2 m are included; for example, the input flange can have an interior width from a lower limit of 0.02 m, 0.04 m, or 0.07 m an upper limit of 0.2 m, 0.17 m, or 0.15 m.
[0034] The input flange 108 can have an interior height from 0.02 m to 0.3 m. All individual values and subranges from 0.02 m to 0.3 m are included; for example, the input flange can have an interior height from a lower limit of 0.02 m, 0.04 m, or 0.07 m an upper limit of 0.3 m, 0.25 m, or 0.2 m.
[0035] As mentioned, the device 100 includes an output flange 110. The output flange can be coupled to the first elongate wall 132 and the second elongate wall 232, e.g. opposite of the input flange 108.
[0036] The output flange 110 can have an interior width 260 from 0.02 m to 0.2 m. All individual values and subranges from 0.02 m to 0.2 m are included; for example, the output flange can have an interior width from a lower limit of 0.02 m, 0.04 m, or 0.07 m an upper limit of 0.2 m, 0.17 m, or 0.15 m
[0037] The output flange 110 can have an interior height 262 from 0.02 m to 0.3 m. All individual values and subranges from 0.02 m to 0.3 m are included; for example, the output flange can have an interior height from a lower limit of 0.02 m, 0.04 m, or 0.07 m an upper limit of 0.3 m, 0.25 m, or 0.2 m.
[0038] Figure 3 is an illustration of a cross section of a portion of a device 100 for flame testing materials in accordance with a number of embodiments of the present disclosure.
[0039] As mentioned, the device 100 includes an air input section 112 including a pressurized air input 113. Embodiments provide that that the pressurized air input 113 can be utilized to provide an air flow from 0 to 250 standard liters per minute (SLPM). Allindividual values and subranges from 0 to 250 SLPM are included; for example, the pressurized air input can provide an air flow from a lower limit of 0, 0.5, or 5 SLPM to an upper limit of 250, 235, or 225 SLPM. Different air flows may be desirable for various applications. Advantageously, providing the air flow from the pressurized air input 113 can help to promote flame propagation along a flame testable material that is being tested with device 100.
[0040] Embodiments provide that the air input section 112 includes a flow distributor 356. The flow distributor can be located between the pressurized air input 113 and the burner 250. Advantageously, the flow distributor can help provide a desirable air flow profile throughout the device 100. For instance, the flow distributor can help provide a more uniform air distribution throughout the device 100, relative to an air flow not utilizing a flow distributor. Various flow distributors for different applications. One or more embodiments provide that the flow distributor is a porous plate, a baffle, a spacer, or a combination thereof. One or more embodiments provide that the flow distributor is a porous plate, e.g., a metal plate having a number of holes passing though the plate. Different numbers of holes and various sizes of holes may be utilized for various applications. One or more embodiments provide that the flow distributor is a stainless- steel plate having 0.25-inch diameter, evenly spaced holes passing through the plate to provide an open area, i.e., the area occupied by holes, of 58%.
[0041] The air input section 112 can have a length 358 from 0.03 m to 0.2 m. All individual values and subranges from 0.03 m to 0.2 m are included; for example, the air input section can have a length from a lower limit of 0.03 m, 0.04 m, or 0.05 m an upper limit of 0.2 m, 0.15 m, or 0.1 m.
[0042] The air input section 112 can have a width 360 from 0.01 m to 0.15 m. All individual values and subranges from 0.01 m to 0.15 m are included; for example, the air input section can have a width from a lower limit of 0.01 m, 0.02 m, or 0.03 m an upper limit of 0.15 m, 0.1 m, or 0.09 m.
[0043] The air input section 112 can be coupled to the input flange 108. One or more embodiments provide that the air input section can be removably coupled to the input flange. One or more embodiments provide that the air input section can be rotatably hinged to the input flange.
[0044] The device 100 can include insulation 362. For instance, the inner portions, e.g., portions proximate to flame testing, of the first elongate wall 132 and a second elongate wall 232, which are shown in Figure 2, can each be covered withinsulation. Various known insulations may be utilized. One or more embodiments provide that the entire the inner portions, e.g., portions proximate to flame testing, of the first elongate wall 132 and a second elongate wall 232 are covered with insulation.
[0045] Due to window placement along the sidewalls of previous flame testing devices, such as a Steiner tunnel, these previous devices have been precluded from utilizing insulation along those sidewalls. In contrast to these previous devices, the devices disclosed herein can utilize insulation along the inner portions, e.g., portions proximate to flame testing, of the first elongate wall 132 and a second elongate wall 232. This utilization of insulation can help provide a relatively more thermally even flame testing condition and / or reduce undesirable heat loss that can occur during flame testing.
[0046] Figure 3 illustrates a portion of a flame testable material 364. The flame testable material can include fire-retardant coatings, paints, insulations, and / or building materials. As shown in Figure 3, the flame testable material can be restrained by flame testable material restraints 248-4, 248-5, 248-6.
[0047] The devices for flame testing materials disclosed herein may be operated, as an example, as follows. The burner and burner mount can be attached to the device. A flame testable material may be restrained with the flame testable material restraints. After the flame testable material is restrained, the elongate cover may be attached to the first elongate wall and the second elongate wall. The rotator may be utilized to provide a desired testing angle. The burner height can be adjusted to a desirable height for flame testing and combustion materials, e.g., propane and oxygen, can be provided to the burner. The burner can be ignited, and the burner power can be adjusted to a desirable burner power. After the burner is ignited, the air inlet section can be coupled to the input flange. A pressurized air flow, through the flow distributor, can be established to promote flame propagation along a flame testable material. The flame propagation along the flame testable material may be observed via the viewing mirror, which can provide an angle of reflection from the elongate transparent material.
[0048] One or more embodiments provide that flame propagation along a flame testable material may be recorded by one or more cameras. For instance, a camera may be positioned to directly record flame propagation along a flame testable material through the elongate transparent material and / or a camera my be positioned to record flame propagation along a flame testable material via the viewing mirror, which can provide an angle of reflection from the elongate transparent material. A camera may be mounted on frame 118, among other locations.
[0049] One or more embodiments provide that one or more modular extensions may be coupled to the output flange. In general, coupling the one or more modular extensions coupled to the output flange can increase the length of the devices for flame testing materials disclosed herein. Different lengths may be desirable for various applications.
[0050] Embodiments provide that the modular extension can have a length from 0.02 m to 2 m. All individual values and subranges from 0.02 m to 2 m are included; for example, the modular extension can have a length from a lower limit of 0.02 m, 0.05 m, or 0.08 m an upper limit of 2 m, 1 .8 m, or 1 .6 m.
[0051] Embodiments provide that the modular extension can have a width from 0.02 m to 0.3 m. All individual values and subranges from 0.02 m to 0.3 m are included; for example, the modular extension can have a width from a lower limit of 0.02 m, 0.04 m, or 0.07 m an upper limit of 0.3 m, 0.25 m, or 0.2 m.
[0052] Embodiments provide that the modular extension can have a height from 0.02 m to 0.2 m. All individual values and subranges from 0.02 m to 0.2 m are included; for example, the modular extension can have a width from a lower limit of 0.02 m, 0.04 m, or 0.07 m an upper limit of 0.2 m, 0.17 m, or 0.15 m.
[0053] As mentioned, the devices disclosed herein may be utilizing for testing that is compatible to ASTM E 84 testing. ASTM E 84 testing utilizes a Steiner tunnel, which has the dimensions: 30 foot length; 2 foot width; and 1 foot height. The Steiner tunnel has a number of differences as compared to the devices disclosed herein. For example, the Steiner tunnel is relatively larger, as compared to the devices disclosed herein, and the this relatively larger size can reduce a tested material count within a particular timeframe, as compared to the devices disclosed herein.
[0054] Surprisingly, utilizing the parameters discussed herein, such as device dimensions, burner power, and pressurized air flow through the air flow distributor, can provide that the novel devices disclosed herein can provide comparable temperature profiles and / or burning behavior characteristics obtained by Steiner tunnels.
Claims
CLAIMS1 . A device for flame testing materials, the device comprising: an elongate transparent material; a burner that extends in a normal direction relative to a major surface of the elongate transparent material; a first elongate wall adjacent to the elongate transparent material, wherein the first elongated wall is removably coupled to the elongate transparent material and the first elongate wall includes a first restraint configured to restrain a flame testable material; a second elongate wall adjacent the elongate transparent material, wherein the second elongate wall is separated from the first elongate wall by the elongate transparent material, the second elongate wall is removably coupled to the elongate transparent material, and the second elongate wall includes a second restraint configured to restrain the flame testable material; an elongate cover removably attached to the first elongate wall and the second elongate wall; an input flange coupled to the first elongate wall and the second elongate wall; an output flange coupled to the first elongate wall and the second elongate wall; and an air inlet section coupled to the input flange, wherein the air inlet section includes a pressurized air input and a flow distributor that is located between the pressurized air input and the burner.
2. The device of claim 1 comprising a viewing mirror configured to provide an angle of reflection from the elongate transparent material.
3. The device of claim 1 comprising a rotator configured to rotate the major surface of the elongate transparent material from 0° to 360°.
4. The device of claim 1 wherein the first elongate wall and the second elongate wall are each continuous opaque materials.
5. The device of claim 4 comprising a first portion of insulation coupled to the first elongate wall and a second portion of insulation coupled to the second elongate wall.
6. The device of any one of claims 1 -5, wherein the first elongate wall and the second elongate wall each have a length from 0.3 m to 2.5 m and a width from 0.02 m to 0.2 m.
7. The device of any one of claims 1 -6, wherein the elongate transparent material has a length from 0.2 m to 2.5 m and a width from 0.02 m to 0.2 m.
8. The device of any one of claims 1 -7, wherein the flow distributor comprises a porous plate, a baffle, a spacer, or a combination thereof.
9. The device of any one of claims 1 -8, wherein the air inlet section is separable from the input flange.
10. The device of any one of claims 1 -9, wherein the elongate transparent material is continuous.
Citation Information
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