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Method for activating low-temperature combustion of liquid hydrocarbon fuel based on dynamic induction effect

A technology of hydrocarbon fuel and induction effect, which is applied in the direction of liquid carbon-containing fuel, fuel, petroleum industry, etc., can solve the problems of deterioration of fuel combustion characteristics, and achieve the effects of stable physical form, low spontaneous combustion temperature, and good stability

Active Publication Date: 2020-04-14
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to improve the deterioration of fuel combustion characteristics of advanced aero-engine liquid hydrocarbon fuels under severe working conditions at low temperatures

Method used

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  • Method for activating low-temperature combustion of liquid hydrocarbon fuel based on dynamic induction effect
  • Method for activating low-temperature combustion of liquid hydrocarbon fuel based on dynamic induction effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1, adding n-hexadecane to the fuel tank, the volume percentage is 99%;

[0027] Step 2, adding borane-N,N-diethylaniline to the above-mentioned fuel tank added with n-hexadecane, the volume percentage is 1%;

[0028] Step 3, uniformly mixing the liquid in the fuel tank in an inert gas environment by physical means.

[0029] A hot plate experimental device was used to measure the combustion characteristics of the above mixed liquid on the hot plate to illustrate the effect of regulating the combustion characteristics of the modified fuel containing the active activator. The minimum ignition temperature is 235 °C.

Embodiment 2

[0031] Step 1, adding n-hexadecane to the fuel tank, the volume percentage is 98%;

[0032] Step 2, adding borane-N,N-diethylaniline to the above-mentioned fuel tank added with n-hexadecane, the volume percentage is 2%;

[0033] Step 3, uniformly mixing the liquid in the fuel tank by physical means.

[0034] The hot plate experimental device is used to measure the combustion characteristics of the above mixed liquid on the hot plate to illustrate the effect of regulating the combustion characteristics of the modified fuel containing the active activator. The minimum ignition temperature is 205 °C.

Embodiment 3

[0036] Step 1, adding n-dodecane into the fuel tank, the volume percentage is 97%;

[0037] Step 2, adding borane-N,N-diethylaniline to the above-mentioned fuel tank added with n-dodecane, the volume percentage is 3%;

[0038] Step 3, uniformly mixing the liquid in the fuel tank by physical means.

[0039] A hot plate experimental device was used to measure the combustion characteristics of the above mixed liquid on the hot plate to illustrate the effect of regulating the combustion characteristics of the modified fuel containing the active activator. The minimum ignition temperature is 155 °C.

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Abstract

The invention discloses a method for activating low-temperature combustion of liquid hydrocarbon fuel based on a dynamic induction effect, and relates to aviation fuel. The method comprises the following steps: step 1, adding the liquid hydrocarbon fuel into a preparation device; step 2, adding a dynamic induction activating agent into the preparation device; and step 3, uniformly mixing the liquid in the preparation device. The low-temperature combustion characteristic of the liquid hydrocarbon fuel can be efficiently and homogeneously achieved through the small volume fraction, and low-temperature combustion of the liquid hydrocarbon fuel is achieved. The obtained activated fuel is simple and safe to operate and high in practicability, and has the advantages of being stable in physical form, free of layering, low in spontaneous combustion temperature, good in stability when making contact with air in a normal-temperature environment, and the like.

Description

technical field [0001] The invention relates to the field of aviation fuels, in particular to a method for activating liquid hydrocarbon fuels for low-temperature combustion based on dynamic induction effects. Background technique [0002] For advanced aero-engines, it is not only required to achieve oil-air mixing and ignition in the main combustion chamber under the working conditions of high pressure, high speed and high turbulence, but also requires Reliable ignition and start of the engine under extreme conditions such as temperature <-40°C) and high humidity (humidity >60%) poses a greater challenge to the design of the main combustion chamber of the aero-engine. [0003] Aeroengines will stall in the air due to unexpected situations such as compressor surge, and advanced aeroengines put forward higher requirements for in-air ignition capabilities. Compared with ground ignition, the air temperature at the engine inlet is low (inlet temperature <-40°C), low pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/04C10L1/222
CPCC10L1/04C10L1/14C10L1/222C10L2270/02
Inventor 黄小彬刘洪盛浩强
Owner SHANGHAI JIAO TONG UNIV
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