Analysis of entropy generation in hydrogen-enriched ultra-lean counter-flow methane-air non-premixed combustion

被引：36

作者：

Chen, Sheng ^{[1
]}

Liu, Zhaohui ^{[1
]}

Liu, Jingzhang ^{[1
]}

Li, Jing ^{[1
]}

Wang, Lin ^{[1
]}

Zheng, Chuguang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 22期

基金：

中国国家自然科学基金;

关键词：

Entropy generation; Hydrogen enriched; Non premixed combustion; LATTICE-BOLTZMANN METHOD; FLAMMABILITY LIMIT; NATURAL-CONVECTION; MODEL; SIMULATION; EMISSION; FLAMES; FUEL;

D O I：

10.1016/j.ijhydene.2010.08.048

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper entropy generation in hydrogen enriched ultra lean counter flow methane-air non premixed combustion confined by planar opposing jets is investigated for the first time The effects of the effective equivalence ratio and the volume percentage of hydrogen in fuel blends on entropy generation are studied by numerically evaluating the entropy generation equation The lattice Boltzmann model proposed in our previous work instead of traditional numerical methods is used to solve the governing equations for combustion process Through the present study, five interesting features of this kind of combustion, which are quite different from that reported in previous literature on entropy generation analysis for hydrogen enriched methane-air combustion are revealed The total entropy generation number can be approximated as a linear increasing function of the volume percentage of hydrogen in fuel mixture and the effective equivalence ratio for all the cases under the present study (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved

引用

页码：12491 / 12501

页数：11

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