煤气与热力2025，Vol.45Issue(8)：19-24,6.
肋片管蒸发器肋片表面传热系数影响因素模拟
Simulation of Factors Affecting Surface Heat Transfer Coefficient of Finned Tube Evaporator
张群力 1郭颖杰 2王月 2刘涛2
作者信息
- 1. 北京建筑大学供热、供燃气、通风及空调工程北京市重点实验室,北京 100044||北京建筑大学北京节能减排与城乡可持续发展省部共建协同创新中心,北京 100044||北京建筑大学环境与能源工程学院,北京 100044
- 2. 北京建筑大学供热、供燃气、通风及空调工程北京市重点实验室,北京 100044||北京建筑大学北京节能减排与城乡可持续发展省部共建协同创新中心,北京 100044
- 折叠
摘要
Abstract
Taking the finned tube evaporator of heat pump unit in flue gas waste heat recovery tower as the research object,the effects of the structure parameters of finned tube evaporator and flue gas inlet parameters on the heat transfer coefficient of fin surface were nu-merically studied.Along the flue gas flow direction,both temperature and pressure gradually decrease,with the highest flow velocities observed at both lateral sides of the heat exchange tubes while the leeward side velocity approaches zero.The internal diameter of heat exchange tubes had a greater impact on the average fin surface heat transfer coefficient than fin thickness,where appropriately reducing the tube diameter can significantly enhance heat transfer performance.Com-pared to flue gas inlet temperature,both the inlet veloc-ity and water vapor volume fraction show more pro-nounced effects,with controlled increase in these pa-rameters substantially improving the average fin sur-face heat transfer coefficient.关键词
肋片管蒸发器/烟气/肋片表面传热系数Key words
finned tube evaporator/flue gas/surface heat transfer coefficient分类
建筑与水利引用本文复制引用
张群力,郭颖杰,王月,刘涛..肋片管蒸发器肋片表面传热系数影响因素模拟[J].煤气与热力,2025,45(8):19-24,6.
