1295 results about "Liquid fuel" patented technology

To provide a bi-fuel vehicle capable of preventing a driver from feeling bothered even in a situation where restart occurs frequently.SOLUTION: A bi-fuel vehicle is equipped with an engine 2 to which one of two types of fuel: CNG, which is gaseous fuel; and gasoline, which is liquid fuel, selected and supplied as fuel to be injected into a combustion chamber of each cylinder, and comprises an ECU 8 that controls an idling stop function that stops the engine 2 when a preset automatic stop condition is established and restarts the engine 2 when the preset restart condition is established. The ECU 8 selects gasoline as the fuel to be injected into the combustion chamber of each cylinder of the engine 2 when it is predicted that automatic stopping and restarting of the engine 2 may be repeated a predetermined number of times or more within a predetermined time.SELECTED DRAWING: Figure 1

The invention provides a method for constructing a differential diffusion small flame model for buoyancy-driven plume, and the method is applied and expanded to a pool fire combustion process in the field of fire safety. According to the method, the buoyancy driven plume is solved by using the small flame model, the solving number of component equations of the buoyancy plume is greatly reduced through coordinate conversion dimensionality reduction processing, and the main characteristics of the buoyancy plume can be reproduced with relatively high precision and a faster calculation rate. According to the method, high-precision numerical solution of buoyancy plume is realized, and pool fire combustion of gas fuel and liquid fuel and numerical solution of all plume driven by buoyancy can be processed.

An aircraft conditioning system including: a fuel inlet (2) to a fuel conduit (3), an engine (4), a first heat exchanger (6) connected to a power unit outlet (5) of the engine, a first portion (3.1) of the fuel conduit (3) connecting the fuel inlet (2) to a fuel inlet (6.3) of the first heat exchanger (6) and a second portion (3.2) connecting a fuel outlet (6.4) of the first heat exchanger (6) to an inlet (4.1) of the engine (4), a heater (7) converting liquid fuel in the fuel conduit (3) to a low temperature gas form, a bypass conduit (8) connecting the first and second portions (3.1, 3.2) wherein the first heat exchanger (6) transfers heat from exhaust gases of the power unit outlet (5) to fuel of the fuel conduit (3).

The invention discloses a plasma-enhanced direct-injection type liquid ammonia atomizing nozzle and a liquid ammonia combustor, and belongs to the field of liquid fuel combustion. The plasma-enhanced direct-injection type liquid ammonia atomizing nozzle comprises a liquid ammonia channel, a compressed air channel, an atomizing channel, a secondary air channel and a heating assembly, wherein the outlet end of the compressed air channel and the outlet end of the liquid ammonia channel are both communicated with the atomizing channel; the heating assembly comprises a high-voltage electrode, a ground electrode and a central air channel, the ground electrode is arranged on the outer side of the high-voltage electrode, and an outlet of the central air channel faces a discharge area formed by the high-voltage electrode and the ground electrode; a discharge area formed by the high-voltage electrode and the ground electrode is close to the liquid ammonia channel; a ground electrode hole is formed in the position, close to the liquid ammonia channel, of the ground electrode. Self-evaporation of preheated liquid ammonia is achieved through small plasma flames, efficient atomization of large-flow liquid ammonia is achieved, and consumption of atomization media is reduced while stable combustion is achieved.

Liquid fuel systems and methods are provided. A liquid fuel system includes a mixing unit and a plurality of liquid fuel supply systems. Each liquid fuel supply system is fluidly coupled to the mixing unit. The liquid fuel system further includes a controller communicatively coupled to the mixing unit and the plurality of liquid fuel supply systems. The controller includes memory and one or more processors. The memory stores instructions that when executed by the one or more processors cause the liquid fuel system to perform operations including providing one or more liquid fuels from the plurality of liquid fuel supply systems to the mixing unit. The operations further include mixing, with the mixing unit, the one or more liquid fuels to create a liquid fuel mixture. The operations further include providing the liquid fuel mixture to a combustion section of a turbomachine.

The utility model discloses a multi-stage split energy-saving combustion device for liquid fuel, the energy-saving combustion device is composed of a combustion cylinder, an ion combustion body and a combustion body installation box in sequence from top to bottom, the upper end of the ion combustion body is fixedly connected with the combustion cylinder, the lower end of the ion combustion body is provided with an impeller air inlet channel, and the combustion cylinder is fixedly connected with the combustion body installation box. The impeller air inlet channel is located in the combustion body installation box, the combustion body installation box is of a hollow cavity structure, and a fan air inlet and an oil inlet hole are formed in the side face of the combustion body installation box. Compared with the prior art, the atomization combustion mode of an original electronic injection fuel stove is changed essentially, atomization of a high-pressure atomization nozzle is not needed, high-temperature vaporization combustion of liquid fuel is achieved in the first-stage combustion cavity, stable combustion and sufficient vaporization are achieved in the second-stage combustion cavity, and sufficient combustion and heating are achieved in the third-stage combustion cavity. The energy consumption is lower, the heat utilization rate is nearly doubled, the safety is higher, the independence is good, and the applicability is wide.

A nuclear reactor is discussed herein. In some examples, the nuclear reactor may comprise an inner-core region, including liquid fuel, coolant / moderator, and a hydrogen vapor space, an out-of-core region surrounding the inner-core region, the out-of-core region including, an inner reflector adjacent to the inner-core region, the inner reflector including a first irradiation facility, and an outer reflector adjacent to the inner reflector, the outer reflector including a second irradiation facility.

The invention discloses a petrochemical enterprise liquid fuel leakage and overflow and three-phase foam extinguishing agent oil bath / flowing fire extinguishing dynamic characteristic experimental device. Comprising a foam fire extinguishing system, a pool fire generation system, an overflow control system, a wind speed adjusting system, a spreading convergence system, an image acquisition system, a temperature acquisition system, a radiation heat flow acquisition system, a gas concentration acquisition system, an air velocity acquisition system, an oil film thickness acquisition system, a flow spreading monitoring system and a coordination control system. The experimental device is used for liquid fuel leakage, overflow and combustion under the influence of multiple parameters, and the gas-liquid-solid three-phase foam extinguishing agent extinguishing oil pool / flowing fire dynamic characteristics, transient development process and fire extinguishing efficiency. The dynamic fire extinguishing characteristic of the three-phase foam fire extinguishing agent, the coupling process of flowing, combustion, heat and mass transfer and the like under the influence of multiple factors and the spreading mechanism are disclosed, a theoretical basis is provided for perfecting fire prevention and control of chemical enterprises, and the fire rescue capacity is improved.

The invention provides an automobile power system using hydrazine and compatible with various liquid fuels. The system comprises a fuel storage subsystem, an oil tank self-repairing subsystem, a fuel conveying subsystem, an oil injection heating subsystem, a fuel combustion subsystem, a piston kinetic energy conversion subsystem, a mechanical-electric energy conversion subsystem, an inversion conversion subsystem, a super capacitor subsystem, a multi-pole variable motor subsystem, an in-vehicle air conditioner subsystem and a foaming tire subsystem. The control subsystem, the mechanical lubrication subsystem, the braking energy recovery subsystem, the waste gas treatment subsystem, the waste heat recovery subsystem, the safety protection subsystem and the parking subsystem are used for forming a complete oil-electricity hybrid automobile system; the efficient, safe, comfortable, environment-friendly and intelligent automobile power system is innovatively constructed, so that the requirements of various vehicle power systems are met.

The invention belongs to the technical field of energy conversion equipment and solid resource pyrolysis conversion utilization, and discloses continuous replacement type pyrolysis equipment and a pyrolysis method thereof. The continuous replacement type pyrolysis equipment comprises a feeding system, a microwave generating system is arranged on one side of the feeding system, a carbon residue collecting system is arranged at the bottom of the feeding system, a continuous replacement system is installed in the microwave generating system, and a reaction system is installed in the continuous replacement system. One side, far away from the feeding system, of the reaction system is connected with a product collecting system; through the synergistic effect of microwave pyrolysis and dynamic replacement design, pyrolysis of crushed materials and tar cracking are integrated into a continuous process, efficient energy conversion is achieved, high-added-value products such as liquid fuel / chemicals and pyrolysis carbon residues are finally produced, and reduction, harmlessness and resourceful treatment of solid resources is promoted.

The invention provides a liquid oxygen methane engine test bed composed of a multifunctional test system. The test bed comprises a gas path system, a liquid path system and a test station. Wherein the gas path system and the liquid path system are connected through a pipeline for gas supply, and the liquid path system is connected with the test run station and used for providing liquid fuel needed by testing for the test run station. The liquid path system comprises a low-pressure liquid path module and a high-pressure liquid path module. And the low-pressure liquid path module and the high-pressure liquid path module are respectively connected with a test run station. The test bed is composed of a set of gas path system, two sets of liquid path systems and three test stations. The two sets of liquid path systems jointly adopt one set of gas path system for gas supply, so that medium conveying can be carried out on the three test run stations according to requirements, the test run platform can meet the gas distribution requirements of engines of different models, meanwhile, the resource sharing of test equipment is improved, the total cost of equipment construction and maintenance is greatly reduced, and the working efficiency is improved. And the engine testing efficiency is improved.

According to the dual-fuel afterburner without the inner duct stabilizer, an oil injection rod and an air injection rod are arranged in a supporting plate with a cavity structure, an oil injection nozzle and an air injection nozzle which are communicated are formed in the wall face of the supporting plate, and cooperative combustion of gas fuel and liquid fuel is achieved. According to the afterburner, a stable ignition source is provided through the characteristic that gas fuel is easy to burn, efficient and stable combustion is achieved in cooperation with fuel injection, and therefore a traditional inner duct stabilizer is omitted, the weight of the afterburner is remarkably reduced, and weight reduction and performance optimization of the afterburner are achieved. Evaporative flame stabilizers distributed in the circumferential direction are arranged in the outer duct area to achieve stable combustion of airflow in the outer duct, and flame stability and cross flame performance are guaranteed in cooperation with the supporting plates of the inner duct and fuel gas sprayed out of the supporting plates.

To provide a control device and a control method for internal combustion engine which can perform control such that amounts of discharge of nitrogen oxide and ammonia satisfy limit values even when an environment condition changes.SOLUTION: A control device for an internal combustion engine includes: a nitrogen oxide acquiring unit for acquiring an amount of nitrogen oxide in exhaust gas discharged from the internal combustion engine; an ammonia amount acquiring unit for acquiring an amount of ammonia in the exhaust gas discharged from the internal combustion engine; and a flow rate control unit which gives a flow adjustment instruction to adjust a flow rate of combustion gas directed to the internal combustion engine, to a flow rate adjustment device which adjusts a flow rate of combustion gas introduced into the internal combustion engine, such that the nitrogen oxide amount acquired by the nitrogen oxide amount acquiring unit and the ammonia amount acquired by the ammonia amount acquiring unit do not exceed threshold values in a state where the internal combustion engine is being operated in a mixed combustion operation mode using both liquid fuel and ammonia gas as fuel.SELECTED DRAWING: Figure 1

The invention relates to a honeycomb sandwich type vacuum insulation panel and a vacuum insulation panel system, and provides the honeycomb sandwich type vacuum insulation panel and the vacuum insulation panel system. An insulating panel mounted between a main gas barrier and an auxiliary gas barrier of a low-temperature liquid fuel tank is formed as a honeycomb sandwich panel having a honeycomb structure, so that insulation of the low-temperature liquid fuel tank can be improved and maximized, and heat loss thereof can be minimized. The cryogenic liquid fuel tank includes a primary gas barrier, an insulating panel, and a secondary gas barrier such that cryogenic liquid fuel containing liquefied hydrogen is contained therein, the cryogenic liquid fuel tank including: a honeycomb sandwich panel mounted between the primary gas barrier and the secondary gas barrier to insulate the cryogenic liquid fuel tank; a vacuum film accommodating and evacuating the honeycomb sandwich panel; and a breakage-proof pad installed at each corner of the honeycomb sandwich panel in contact with the vacuum film and preventing damage to the vacuum film.

The invention relates to the technical field of biomass liquid fuels, in particular to a biomass liquid fuel and a preparation method thereof, and the biomass liquid fuel comprises the following components by weight: 40-60 parts of biomass-based methanol; 10 to 20 parts of biomass-based ethanol; 5 to 15 parts of biomass-based n-butyl alcohol; 5 to 10 parts of dimethyl ether; 10 to 20 parts of biodiesel; 1-5 parts of a lignin derivative; 0.1 to 0.5 part of an antioxidant; 0.1 to 0.5 part of a stabilizing agent; 0.5-2 parts of a purification dispersant; 1-3 parts of bio-based glycerol n-butyl ether; according to the invention, a plurality of alcohols (methanol, ethanol and n-butyl alcohol) are synergistically used, so that a series with the carbon chain length gradually increasing from C1 to C4 is formed. According to the design, the volatility and the energy density of the fuel are balanced, the oxygen content of the fuel is increased through hydroxyl (-OH) in alcohol molecules, and more complete combustion is promoted.

The invention provides a nanofluid fuel with metal carbide as an additive and a preparation method thereof.The nanofluid fuel comprises liquid fuel, the metal carbide and a surfactant, the metal carbide and the surfactant are evenly dispersed in the liquid fuel, the mass percent of the metal carbide is 1%-40%, the mass percent of the surfactant is 1%-20%, and the mass percent of the liquid fuel is 1%-20%. The mass percent of the surfactant is 1%-15%, and the balance is liquid fuel. By applying the technical scheme, the technical problems that in the prior art, the energy density of liquid fuel is insufficient, and the combustion heat release process of fuel is affected by surface oxidation and combustion products of traditional energy-containing nano metal particles or metal oxide particles are solved.

The invention discloses an on-site mixed water-gel explosive which comprises the following components in percentage by weight: 45-70% of ammonium nitrate; 9%-15% of water; 10-20% of calcium nitrate; 7-20% of liquid fuel; 0-10% of an auxiliary combustible agent; 0.7%-1.0% of a gelling agent; 0.2%-0.5% of an additive; 0.02%-8% of a sensitizing agent; 1-3% of a cross-linking agent; the density range of the explosive is 0.3-1.25 g / cm < 3 >, and the adjusting range is wide; the detonation velocity of the explosive is 2000-4500 m / s, and the explosive is high in matching degree with medium soft rock; the explosive has good water resistance and is suitable for charging of wet holes, water holes and slurry holes; the production raw materials of the explosive do not contain high-energy materials, and the prepared thickening mother liquor and semi-finished products have the characteristics of good stability, long storage life, high transportation safety and high intrinsic safety.

The invention belongs to the related technical field of combustion equipment, and discloses an auxiliary fuel gas circuit device and a combustor, the auxiliary fuel gas circuit device is installed on the combustor used for liquid-gas mixed combustion and comprises a pressure stabilizing ring cavity and fuel gas pipelines, the pressure stabilizing ring cavity is annular and hollow, one side of the pressure stabilizing ring cavity communicates with the first ends of the fuel gas pipelines in the circumferential direction, and the other side of the pressure stabilizing ring cavity communicates with the second ends of the fuel gas pipelines in the circumferential direction; a fuel gas inlet is formed in the pressure stabilizing ring cavity; the combustor comprises an air flow channel and a fuel oil channel located in the middle of the air flow channel, the pressure stabilizing ring cavity and the wall face of the air flow channel are slidably arranged in the extending direction, a detachable limiting structure is arranged between the pressure stabilizing ring cavity and the wall face of the air flow channel, the multiple fuel gas pipelines are located on the periphery of the air flow channel, and the second ends of the fuel gas pipelines are bent inwards. The fuel gas pipeline can slide relative to the air flow channel and the fuel oil channel, the position of the fuel gas outlet can be adjusted according to the types of specific liquid fuel and gaseous fuel and specific working condition parameters, the liquid fuel and the gaseous fuel can be matched to the optimal corresponding position, and the optimal combustion effect is achieved.

An integrated process having an ultra-low GHG footprint for converting Camelina based biomass to liquid fuels and lubricant base stocks in which a Camelina based biomass feed is converted to liquids by a multistep hydroprocessing method and the liquids are upgraded to produce premium hydrocarbon fuels and lubricants.

The present invention discloses a plasma-enhanced direct-injection liquid ammonia atomizing nozzle and a liquid ammonia burner, which belong to the field of liquid fuel combustion. The plasma-enhanced direct-injection liquid ammonia atomizing nozzle comprises a liquid ammonia channel, a compressed air channel, an atomizing channel, a secondary air channel and a heating component, wherein the outlet end of the compressed air channel and the outlet end of the liquid ammonia channel are both connected to the atomizing channel; the heating component comprises a high-voltage electrode, a ground electrode and a central air channel, the ground electrode is arranged on the outside of the high-voltage electrode, and the outlet of the central air channel faces the discharge area formed by the high-voltage electrode and the ground electrode; the discharge area formed by the high-voltage electrode and the ground electrode is close to the liquid ammonia channel; a ground electrode hole is arranged on the ground electrode near the liquid ammonia channel. The present invention realizes the self-evaporation of the preheated part of the liquid ammonia through a small plasma flame, realizes the efficient atomization and stable combustion of large-flow liquid ammonia, and reduces the consumption of the atomizing medium.

The invention discloses a liquid fuel vaporizing and mixing multi-stage combustion system which comprises an air bellow and a fuel conveying pipe, a flow guide combined barrel is arranged in a lining barrel of the air bellow and is formed by combining an air combing flow guide barrel and a conical flow guide base up and down, and the conical flow guide base is formed by forming an included angle between an air guide annular inclined plate and a transverse bottom plate. A mixing chamber is formed between the flow guide combined cylinder and the lining cylinder, and the oil outlet end of the fuel conveying pipe is arranged in the mixing chamber; a plurality of air grooves are formed in the air combing guide cylinder, and a plurality of air guide grooves are formed in an air guide annular inclined plate of the conical guide seat; the top of the lining cylinder is connected with a combustion cylinder A in a sealed mode, the combustion cylinder A is sleeved with a porous ceramic silencing cylinder, fire distribution fins are installed on the top of the porous ceramic silencing cylinder, and a combustion cavity C is formed between the cylinder wall of the combustion cylinder A and the cylinder wall of the porous ceramic silencing cylinder. According to the invention, liquid fuel can be fully mixed, vaporized and gradually combusted, the fuel is fully combusted, and flame and heat are gathered and are subjected to fire distribution operation through the fire distribution fins.

A fuel spray nozzle includes a fuel circuit having in series a gallery, circumferentially spaced passages arranged in a row around the nozzle, and an annular spin chamber. Each passage has an inlet for receiving a respective portion of the fuel from the gallery and a metering orifice for discharging its portion of the fuel. The passages are configured such that, when the flow of liquid fuel to the inlet port is shut off, a respective differential static pressure develops across stagnant liquid fuel remaining between the inlet and the metering orifice of each passage, and the passages are further configured such that one or more selected passages develop a different differential static pressure to the remaining passages causing a flow of purging air to enter the gallery from the combustor through the selected passages and exit through the remaining passages, thereby purging the gallery and the passages of fuel.

The present invention discloses a coaxial staged burner for a low-pollution combustion chamber of a gas-liquid dual-fuel gas turbine, which relates to the technical field of gas turbine combustion chambers and solves the problem that existing coaxial staged burners are difficult to achieve stable combustion using a single liquid or gas fuel under any load working conditions. The coaxial staged burner comprises: a mounting flange, a main fuel sleeve and a swirler; a fuel supply interface is provided on the mounting flange; four-stage fuel sleeves are coaxially nested in the main fuel sleeve; the swirler consists of a central duty class, a first-stage premixing stage, a second-stage premixing stage, a first-stage hub and a second-stage hub; when liquid fuel works alone, the fuel enters the swirl channel through the duty class liquid fuel nozzle and the second-stage blade liquid fuel hole to achieve premixing and evaporation processes; when gas fuel works alone, the fuel enters the swirl channel through the first-stage blade fuel hole and the second-stage blade gas fuel hole to be mixed.

The invention discloses a gas-liquid injector which comprises a pintle type inner nozzle, a ceramic sleeve and an outer nozzle. The inner nozzle serves as a discharge anode, the outer nozzle serves as a cathode, a high-temperature environment is generated to gasify liquid fuel, combustible gas and combustion-supporting gas move in opposite directions and collide with each other to be fully mixed, and most efficient gaseous mixed combustion is achieved; the convex ring at the upper end of the outer nozzle abuts against the first flange plate, the ceramic sleeve and the inner nozzle abut against the second flange plate, and the long bolt is tightened to fix the second flange plate and the first flange plate, so that the whole injector is fixedly formed, the structure is simple, the installation procedure is simplified, and redundant design is avoided.

The invention discloses a multipurpose fuel injection performance testing device and a testing method, the multipurpose fuel injection performance testing device can be used for testing gas and liquid fuel by an impulse method and a volumetric method, the multipurpose fuel injection performance testing device comprises a volume bomb, and the volume bomb is provided with an external connection structure communicated with the outside; the clamping mechanism is positioned on the containing bomb and is used for clamping and fixing the ejector; the detection component and the adjusting mechanism are located in the containing bomb, the adjusting mechanism is detachably connected in the containing bomb, the detection component is connected with the adjusting mechanism, the adjusting mechanism is used for adjusting the detection component to be centered with the ejector, and the detection component is used for testing the performance of the ejector; the injector can be tested by an impulse method and a volumetric method by matching the detection component with the external structure, so that the injector has multiple purposes, the manufacturing cost can be reduced, the replacement time is saved, the injector can be suitable for testing different gases or liquid fuels, the corrosion of corrosive fuel to the injector can be reduced by arranging the baffle, and the reliability of the injector is improved. The durability is improved.

An engine device supplies a low GHG fuel having low greenhouse gas emissions to drive an engine. The engine device 1 includes a liquid fuel tank, which is a storage unit that stores a fuel in a liquid state. Waste heat from the engine is utilized to vaporize the fuel supplied from the liquid fuel tank to the engine.

A gas turbine engine, comprising: a compressor section, a combustion section, and a turbine section in a serial flow arrangement, with the combustion section comprising: a combustor liner that at least partially defines a combustion chamber; and a fuel nozzle assembly, comprising: a liquid fuel supply to supply a liquid fuel; a hydrogen fuel supply to supply a gaseous hydrogen fuel; and a fuel nozzle body defining a fuel nozzle assembly centerline, the fuel nozzle body fluidly coupled with the liquid fuel supply and the hydrogen fuel supply to provide the liquid fuel and the gaseous hydrogen fuel to the combustion chamber.

Internal combustion engine (1) with at least one combustion chamber (2), at least one prechamber (3) for the at least one combustion chamber (2) and an intake system (4), wherein the intake system (4) comprises : - a liquid fuel supply (9) configured to provide a liquid fuel, - an air-fuel-mixer (10) mixing air with liquid fuel from the liquid fuel supply (9) and providing an air-fuel- mixture, - a combustion chamber intake manifold (7) leading into the at least one combustion chamber (2) and - a prechamber intake manifold (8) leading into the at least one prechamber (3), wherein the air-fuel-mixer (10) is part of the prechamber intake manifold (8) for admixing the liquid fuel to the air in the prechamber intake manifold (8).

An ammonia mixed combustion engine 1 that operates by burning ammonia and a hydrocarbon liquid fuel causes a control unit 2 to implement at least one of decrease or increase in an air excess ratio in fuel, advance or retard in injection timing of the liquid fuel, and decrease or increase in injection pressure of the liquid fuel in accordance with increase or decrease in a mixed fuel burning ratio of ammonia in the fuel.

A method for pretreating a feed material, the method comprising: subjecting either coal that is outside the blast-furnace-production range or a coal-substitute solid fuel to a dry distillation treatment under such conditions that the maximum dry distillation temperature is 900°C or higher; separating the combustible substances resulting from the dry distillation treatment into a solid fuel, a liquid fuel, and a gaseous fuel; and blowing some or all of the solid fuel, liquid fuel, or gaseous fuel into a metallurgical furnace.