|Table of Contents|

Experimental study on air/LOX/alcohol combustion heater with variable flow rate in large range(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2020年03期
Page:
56-61
Research Field:
研究与设计
Publishing date:

Info

Title:
Experimental study on air/LOX/alcohol combustion heater with variable flow rate in large range
Author(s):
XIONG Jian;  XIAO Hong;  LI Xiaoping;  LYU Fazheng
(Xi’an Aerospace Propulsion Institute, Xi’an 710100, China)
Keywords:
air/LOX/alcohol;  wide-range variable flow;  ignition;  combustion;  combustion heater
PACS:
V434.3
DOI:
-
Abstract:
In order to break through the key technologies of reliable ignition and stable combustion of air/LOX/alcohol three-component combustion heater with variable flow rate in lange range, such a combustion heater was developed by using an optimized orifice atomizer to organize combustion and hot firing tests were carried out. The ignition and combustion characteristics of three working conditions were studied. The experimental results show that the heater achieves high efficiency and stable combustion within the range of more than 10 times flow rate, and the combustion efficiency reaches 97% at the design point. A new organizational combustion mode was adopted to realize reliable ignition and stable combustion under wide-range of variable operating conditions and low injection pressure.The heater ignition is 100% successful, and the chamber pressure fluctuation is less than 1% during stable operation.It is reasonable for the ignition procedure of the heater to use plasma ignition flame to enter the combustion chamber first, followed by oxidant and fuel successively

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Last Update: 2020-06-25