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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

Modelling Global Radiative Heat Flux In a Direct Injection Diesel Engine

Get access (open in a dialog) DOI: 10.1615/IHTC10.4870
pages 7-12

Resumo

In this paper, the global radiative heat flux from the luminous flame to the walls of the combustion chamber is modelled and the results compare favourably with results of some experimental investigations. The model is based on the fuel burned rate data obtained from a single zone heat release rate analysis coupled with appropriate soot formation and oxidation models for evaluation of the radiation and burned zone temperatures, the soot volume fraction, the soot emissivity and the global radiative heat flux. The radiation temperature is treated as a soot mass weighed temperature of the flame temperature at which soot is being formed and a burned zone temperature at which soot is being oxidized.