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Indexed by:期刊论文

Date of Publication:2010-11-01

Journal:JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL

Included Journals:SCIE、Scopus

Volume:17

Issue:11

Page Number:13-18

ISSN No.:1006-706X

Key Words:zone method; non-gray radiation; combustion chamber

Abstract:Water vapour and carbon dioxide as the main products in combustion chamber have strong non-gray radiation properties. Multidimensional mathematical models were developed by zone method considering the non-gray radiation properties of gas in combustion chamber. Edwards exponential wide band model (EBWM) was adopted to calculate the non-gray radiation properties of gas, and the three-point Gauss-Legendre integral formula was used to calculate direct radiation exchange areas. Reflected radiation heat fluxes were obtained by Gauss elimination method, and energy balance equations were solved by main variable correction method. An example was given to validate the developed models, and further investigation of effects of flame distribution on heat transfer was carried on.