煤油和空气的混合物水平管内冷凝换热

The condensation heat transfer and pressure drop investigation of kerosene-air mixture gas (the range of noncondensable gas mass quantity is 5%-52%) in horizontal tube was carried out.According to the liquid film turbulent model,both heat conduction and turbulent heat transfer of liquid film at high speed of gas determine the condensation heat transfer of mixture gas.Condensation heat transfer coefficient could be predicted by Re and Co of liquid film.The correlation of condensation heat transfer coefficient was established.

载气汽油蒸汽在水平圆管内的冷凝

研究了空气质量含量在2%~13%,汽油蒸汽和空气的混合气体在水平管内的冷凝换热。并分析了不凝气体质量分数对管内冷凝换热的影响规律。得到Co随Re变化的冷凝换热系数的实验关联式。