技术中心

【英文篇名】 Experiments on defrosting control based on exhaust fan current combined with evaporation temperature 【作者中文名】 李洪峻; 黄光宏; 钱九阳; 【作者英文名】 Li Hongjun; Huang Guanghong and Qian JiuyangThe Architectural Engineering Research Institute; GLD; PLA; Xi’an; China; 【作者单位】 中国人民解放军总后勤部建筑工程研究所; 兰州创源科技有限公司; 【文献出处】 暖通空调, Heating Ventilating 除霜; 排风机; 电流; 蒸发温度; 【英文关键词】 heat pump; defrosting; exhaust fan; current; evaporation temperature; 【摘要】 实验测定了一台空气源热泵空调机组除霜工况下的运行状况,记录了蒸发温度和不同电压下的排风机电流。结果表明,排风机电流随结霜厚度的增加而增大,增加速率在结霜后期趋缓,不同电压下电流变化曲线略有不同;蒸发温度随结霜厚度的增加而降低,下降速度越来越快;使用根据实验结果提出的基于排风机电流和蒸发温度联合控制的智能除霜方法可以基本避免误除霜动作。 【英文摘要】 Tests the operation status of an air-cooled heat pump air conditioner under defrosting conditions, and records the evaporation temperature and exhaust fan current at different voltages. The results show that the exhaust fan current increases with frosting enhancement, while the increasing speed gets slower in the end of frosting, and the curves of current are slightly different at different voltages; that the evaporation temperature decreases with frosting enhancement, and the decreasing speed becomes incre...