技术中心

【英文篇名】 Experiment and analysis of delaying frost of air-source heat pump water chiller-heater units by increasing the evaporator area 【作者中文名】 王洋; 江辉民; 马最良; 姜益强; 姚杨; 【作者英文名】 By Wang Yang★; Jiang Huimin; Ma Zuiliang; Jiang Yiqiang and Yao YangHarbin Institute of Technology; Harbin; China; 【作者单位】 哈尔滨工业大学; 【文献出处】 暖通空调, Journal of Heating Ventilating 冷热水机组; 蒸发器; 结霜; 实验研究; 【英文关键词】 air-source heat pump; water chiller-heater unit; evaporator; frost; experimental research; 【摘要】 实验研究了增大室外蒸发器面积对空气源热泵冷热水机组蒸发温度的影响,通过对我国可应用空气源热泵地区主要代表性城市气象资料的整理分析,统计计算了未增大蒸发器面积和蒸发器面积增大一倍时,空气源热泵冷热水机组在各地区的结霜时间。结果表明,当室外蒸发器面积增大一倍后,空气源热泵冷热水机组的蒸发温度平均提高了约2.5℃;在空气源热泵运行季节内,机组在不同地区的结霜时间减少了5.21%～82.96%。 【英文摘要】 Explores the influence of increasing the area of the evaporator on the evaporating temperature of the units by experiments. Through analysing the weather data of typical cities in the region where the units are applicable, calculates the frost time of the units with the unchanged evaporator area and that increased by one time respectively for these cities. The results indicate that when the evaporator area doubled, the evaporating temperature can be raised about an average of 2.5 ℃, and the frost time in di... 【基金】 国家自然科学基金资助项目(编号:50278021);; 教育部留学回国人员科研启动基金资助项目