HEAT EXCHANGE IN COOLED COMBUSTION CHAMBERS OF LOW-CAPACITY HEAT GENERATORS

Abstract

Investigation into heat exchange in cooled combustion chambers and its influence on the intensity of various factors is an urgent and challenging task. On the basis of analysis of theoretical and experimental data on heat exchange, it can be concluded that the existing methods do not consider for peculiarities of heat exchange in small-sized combustion chambers and cannot be applied directly for their thermal design. This article presents data on field experiments and their generalization using criterion equation which is very important for the analysis of heat transfer and thermal design of cooled combustion chambers of low-capacity heat generators. Using generalizing dependence, the contribution of radiation and convection constituents into complex heat exchange for combustion chambers of low-capacity is estimated. Qualitative and quantitative dependence of integral radiation and convection heat exchange on the main process variables of small-sized combustion chambers has been determined