Heat Transfer From Impinging Diesel Flames to the Combustion Chamber Wall

Paper #:
  • 970896

Published:
  • 1997-02-24
Citation:
Li, S., Kamimoto, T., Kobori, S., and Enomoto, Y., "Heat Transfer From Impinging Diesel Flames to the Combustion Chamber Wall," SAE Technical Paper 970896, 1997, https://doi.org/10.4271/970896.
Pages:
16
Abstract:
The local heat fluxes from impinging combusting and evaporating diesel sprays to the wall of a square combustion chamber were measured in a rapid compression machine. It was revealed that the ratio of local heat flux between the combusting and evaporating spray, q̇c/q̇e, is of the same order of magnitude as (Tc-Tw)/(Te-Tw) and its values estimated by a two-zone model agree roughly with the measured ones. The time-mean local heat flux during the spray impingement was found to be approximately proportional to the 0.8th power of the injection velocity and the heat-transfer phenomenon depends largely on whether the ignition starts before or after the impingement.
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