Aviation alternative fuel combustion soot generation mechanism research and regulation method

Abstract

The invention discloses an aviation alternative fuel combustion soot generation mechanism research and regulation method. The method comprises the steps that firstly, the influence of oxygen concentration, diluted nitrogen flow and fuel flow on the aviation alternative fuel combustion soot generation is explored through an experiment and simulation combined method, and increasing the oxygen concentration, decreasing the diluted nitrogen flow, and increasing the fuel flow all can promote the generation of combustion major products and soot precursors, and can increase the generation rate of soot precursors; and secondly, nitrogen on the oxidant side and the fuel side of the hedging diffusion combustor is replaced with CO2, regulation and control of CO2 on fuel soot generation are researched, and it is found that CO2 replacement on the oxidant side and the fuel side can inhibit generation of main combustion products and soot precursors. According to the method, the influence of different working conditions on the generation of the fuel combustion product and the soot precursor and the coupling relationship between the experiment and simulation results can be obtained through a method of combining experiments and analogue simulation, and the generation path of the soot precursor can be effectively obtained.

Description

technical field [0001] The invention belongs to the technical field of combustion, and in particular relates to a mechanism research and control method for the generation of aviation alternative fuel combustion soot. Background technique [0002] With the rapid development of science and technology and economy, airplanes are no longer out of reach for ordinary people, and have become a common means of transportation for people to travel. This also makes the aviation industry develop rapidly, and countries vigorously develop civil flights. As well as military models, more and more pollutants are discharged into the air, and the air pollution is becoming more and more serious. The problem of air pollution seriously restricts the progress of social civilization and the development of national economy in our country, threatens the physical and mental health of the people at all times, and even has a huge impact on the living environment and ecological security. The pollutants c...

AI Technical Summary

Problems solved by technology

[0003] Due to the complex composition of domestic aviation kerosene, it is difficult to conduct experiments and build chemical kinetic models. Therefore, in practice, alternative fuels with similar physical and chemical properties and simple structures are generally used for research. The existing research methods are single, and the accuracy of the results needs to be improved.

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