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Aviation alternative fuel blending method for improving ignition performance of gas turbine engine

A gas turbine and aviation fuel technology, applied in the fields of aviation fuel additives and aviation fuel oil compositions, aviation alternative fuel blending methods, can solve the problems that cannot reduce the fluidity, combustibility, compatibility, lubricity, etc. of aviation fuel

Active Publication Date: 2021-05-28
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, while improving ignition performance, aviation fuel fluidity, combustibility, compatibility, and lubricity cannot be reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Add 0.5% volatility improver methylcyclopentane, 1% methylcyclohexane, 3% ethylcyclohexane to coal-based Fischer-Tropsch aviation fuel; 2% propylcyclopentane, propylene Cyclohexane 6%; atomization performance improving additives ethylbenzene 2%, propylbenzene 3%. The improved fuel thus obtained is used in a gas turbine engine, and the low-temperature volatile performance is increased by 60-100%, the lower limit of the flammable boundary is reduced by 50-100%, and the atomized particle size and liquid film length are reduced by 5%-10%.

Embodiment 2

[0054] Add 0.5% volatility improver methylcyclopentane, 1% methylcyclohexane, 1% ethylcyclohexane to natural gas Fischer-Tropsch aviation fuel; 1% propylcyclopentane, propyl Cyclohexane 3%; atomization performance improving additives ethylbenzene 2%, propylbenzene 3%. The improved fuel thus obtained is used in a gas turbine engine, and the low-temperature volatile performance is increased by 30-50%, the lower limit of the combustible boundary is reduced by 50-100%, and the atomized particle size and liquid film length are reduced by 3%-5%.

Embodiment 3

[0056] In biomass Fischer-Tropsch aviation fuel, add volatility improver methylcyclopentane 0.5%, methylcyclohexane 2%, ethylcyclohexane 2%, flammable boundary improver propylcyclopentane 1%, propane Cyclohexane 5%, atomization performance improving additive ethylbenzene 3%, propylbenzene 2%. The improved fuel thus obtained is used in a gas turbine engine, and the low-temperature volatile performance is increased by 60-100%, the lower limit of the flammable boundary is reduced by 50-100%, and the atomized particle size and liquid film length are reduced by 5%-15%.

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PUM

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Abstract

The invention relates to an aviation alternative fuel blending method for improving ignition performance of a gas turbine engine, which comprises the following steps: adding a component (1), a component (2), a component (3) or a combination thereof into an aviation fuel, the component (1) being selected from one or more of methylcyclopentane, methylcyclohexane and ethylcyclohexane, the component (2) being selected from one or more of propyl cyclopentane and propyl cyclohexane, and the component (3) being selected from one or more of C7-C10 aromatic hydrocarbons. The invention also discloses an aviation fuel additive and an aviation fuel oil composition. According to the invention, the ignition performance of the gas turbine engine is obviously improved, atomization and volatility, cetane number, ignition delay, ignition energy, calorific value and ignition-extinguishing boundary are balanced, and meanwhile, the working condition operation range is expanded.

Description

technical field [0001] The invention belongs to the field of aviation fuel, in particular to an aviation alternative fuel blending method for improving the ignition performance of a gas turbine engine. The present invention also relates to aviation fuel additives and aviation fuel oil compositions. Background technique [0002] With the diversified demand for green aviation and energy, the "ready-to-use" application technology of new alternative fuels in active aero engines has become a key factor in carbon emission reduction and energy security. Combustion chamber ignition, combustion stability, and combustion efficiency are closely related to fuel performance. Therefore, the "ready-to-use" application of new aviation alternative fuels needs to meet the performance requirements of the full flight envelope, especially under extreme conditions. Cold start and high-altitude re-ignition are important parameters to measure fuel performance and engine safety. For liquid fuels, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/16C10L10/00C10L10/12F02C3/24
CPCC10L1/1608C10L10/00C10L10/12F02C3/24
Inventor 杨晓奕藏雪静周文杰
Owner BEIHANG UNIV
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