|Table of Contents|

Study based on detailed reaction mechanism for n-Heptane's combustion characteristics inside straight tube(PDF)

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

Issue:
2018年01期
Page:
53-58
Research Field:
研究与设计
Publishing date:

Info

Title:
Study based on detailed reaction mechanism for n-Heptane's combustion characteristics inside straight tube
Author(s):
HUANG Jinghuai; WANG Wei
Beijing Aerospace Propulsion Insititute,Beijing 100076,China
Keywords:
n-Heptane;  detailed reaction mechanism;  flame structure;  inlet parameter;  convective heat transfer coefficient
PACS:
V433.9-34
DOI:
-
Abstract:
The 1-D flame structure near n-Heptane flame was calculated according to the detailed chemical reaction mechanism and then it was obtained. The temperature distribution,flame structure and the main products distribution under various heat emission conditions were got by changing the convective heat transfer coefficient between straight tube surface and air. The calculating result shows that the n-heptane is almost completely consumed before it goes into the preheat zone; during the reaction process,the flame temperature in the straight tube remains unchanged when the equivalence ratio is stable; there was a linear relationship between the flame location and the fuel's mass flow rate(mf),and also between the temperature slope in the downstream of flame and mf; the increase of convective heat transfer coefficient on the outside surface of the straight tube makes the gas temperature in the tube gradually decreased and finally extinguished.

References:

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Last Update: 1900-01-01