汽液固三相流动沸腾传热计算与实验研究

STUDY ON FLOW BOILING HEAT TRANSFER CORRELATION OF VAPOR-LIQUID-SOLID THREE-PHASE FLOW

对汽液固三相循环流化床中流动沸腾传热进行了理论分析和实验研究 ,在此基础上结合渐进模型及表面更新机理建立了汽液固三相流动沸腾传热模型 ,模型计算值和实验数据吻合较好 ,最大偏差在

Theoretical analyses and experimental studies on flow boiling heat transfer were made in a vapor-liquid-solid three-phase fluidized bed. A heat transfer coefficient correlation incorporating asymptotic model and suface renewal was proposed. In this heat transfer coefficient correlation,total heat transfer between the fluidized bed and wall surface is divided into three parts:convection heat transfer between solid particles and wall surface, convection heat transfer between vapor-liquid two-phase flow and wall and flow nuclei boiling heat transfer with the presence of solid particles. The calculated values agree well with the experimental data.