部分热回收风冷热泵冷热水机组性能实验研究

发布时间：2018-05-27 12:35

  本文选题：部分热回收 + 风冷热泵　； 参考：《科学技术与工程》2014年32期

【摘要】：以一台额定制冷(热)量为45 k W的部分热回收风冷热泵机组为平台,研究和分析了样机在名义制冷、名义制热工况,在保持使用侧和热回收侧水流量不变条件下,开启热回收功能后得到出水温度为45℃和50℃热水时样机的运行参数和性能变化规律。结果表明,在名义制冷工况45℃和50℃热水出水温度时,样机制冷性能系数(COP)比无热回收分别变化-10.55%~1.09%和3.64%~12.73%,热回收综合制冷COP分别达到3.38~3.69和2.98~3.15,出水温度由45℃升高到50℃且分别采用单双风机冷凝时,样机制冷COP下降2.44%~4.68%;在名义制热工况热水45℃和50℃出水温度时,样机制热COP比无热回收降低10.96%~21.58%,50℃出水时制热COP比45℃出水时升高4.42%,热回收综合制热COP分别达到了3.28和3.09。
[Abstract]:On the platform of a 45 kW rated heat recovery air-cooled heat pump unit, this paper studies and analyses the prototype in nominal refrigeration and nominal heating condition, while maintaining the constant water flow rate on the service side and the heat recovery side. After the heat recovery function was turned on, the operating parameters and performance of the prototype were obtained when the effluent temperature was 45 鈩，

本文编号：1942108