【摘要】 通过低温室内试验研究热桩与空气间的对流换热规律结果表明，热桩的热流量和放热系数随气温、风速的变化而变化，但因冷凝器特定外形热阻及热桩内凝结换热的影响，气温大于－１２℃和风速大于２ｍ／ｓ时，热桩与空气间的对流换热效率降低。更多还原

【Abstract】 The laws of convection heat transfer between thermalpile and air are studied by test. The results show that heat flux and heat transfer coefficient are changed with air temperature and speed. Because of the influence of special sharp of condensation heat exchange of thermalpile, the efficiency of convection heat transfer between thermalpile and air decreases when air temperature >-12 ℃ and wind speed >2 m/s.更多还原