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Alternate aviation fuel blending method to improve ignition performance of gas turbine engine

A gas turbine and aviation fuel technology, which is applied in the fields of aviation fuel additives, aviation fuel oil compositions, and aviation alternative fuel blending methods, can solve the problems that the fluidity, combustibility, compatibility, lubricity, etc. of aviation fuel cannot be reduced, and achieves The effect of expanding the operating range of working conditions, improving ignition performance and reducing the length of liquid film

Active Publication Date: 2022-08-05
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 volatility improver methylcyclopentane 0.5%, methylcyclohexane 1%, ethylcyclohexane 3% to coal-based Fischer-Tropsch aviation fuel; flammable boundary improver propylcyclopentane 2%, propylene Base cyclohexane 6%; atomization performance improvement additives ethylbenzene 2%, propylbenzene 3%. The improved fuel thus obtained is used in a gas turbine engine, and the low-temperature volatilization performance is improved by 60-100%; the lower limit of the flammable boundary is reduced by 50-100%; the atomized particle size and liquid film length are reduced by 5%-10%.

Embodiment 2

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

Embodiment 3

[0056] Add volatility improver methylcyclopentane 0.5%, methylcyclohexane 2%, ethylcyclohexane 2%, flammable boundary improver propylcyclopentane 1%, propylene Cyclohexane 5%, atomization performance improvement additives ethylbenzene 3%, propylbenzene 2%. The improved fuel thus obtained is used in a gas turbine engine, and the low-temperature volatilization performance is improved by 60-100%; the lower limit of the flammable boundary is reduced by 50-100%; the atomized particle size and the liquid film length are reduced by 5%-15%.

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PUM

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Abstract

The present invention relates to a method for blending an aviation substitute fuel for improving the ignition performance of a gas turbine engine, which comprises adding components (1), (2), (3) or a combination thereof to the aviation fuel, wherein the component (1) is selected from the group consisting of One or more of methylcyclopentane, methylcyclohexane and ethylcyclohexane; component (2) is selected from one or more of propylcyclopentane and propylcyclohexane ; Component (3) is selected from one or more of C7-C10 aromatic hydrocarbons. The invention also discloses an aviation fuel additive and an aviation fuel oil composition. The invention significantly improves the ignition performance of the gas turbine engine, not only balances atomization and volatility, cetane number, ignition delay, ignition energy, calorific value, and ignition boundary, but also expands the operating range of operating conditions.

Description

technical field [0001] The invention belongs to the field of aviation fuel, in particular to a method for blending aviation substitute fuel 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 needs of green aviation and energy, the "ready-to-use" application technology of new alternative fuels in existing aircraft 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 under full flight envelope conditions, especially under extreme conditions. Cold start and high-altitude re-ignition are important parameters to measure fuel performance and engine safety. For...

Claims

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Application Information

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Patent Type & Authority Patents(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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