分区蓄热水箱应用于太阳能热泵中的蓄放热分析

针对冬季太阳能辐射弱且不稳定的特点，提出一种应用于太阳能热泵的分区蓄热水箱，以水泵驱动蓄热水箱循环区与蓄热区的热量传递，并运用热力学原理对水箱循环区与蓄热区的运行状况进行模拟，分析了水箱两区在不同水泵体积流量下的逐时温度变化并与整体式水箱进行对比。结果表明，分区蓄热水箱克服了整体式水箱的热惰性，启动灵活，能在较短时间内达到热泵运行的理想温度，显著提高了系统的性能。

Heat Storage Analysis of Solar Heat Pump Based on Partitioned Heat Storage Tank

A type of the partitioned heat storage tank is presented to solve the problem of unstability and weakness of the solar radiation in winter. The heat transfer between the operating part and storage part is driven by water pump. The operation status of the tank is simulated by using the thermodynamic principle. It is analyzed that the changes of temperature of operating tank with times under different volume flow of the water pump, and compared with the operation of whole tank. The results show that the partitioned tank will overcome the problem of thermal inertia and start flexibly; the satisfactory temperature can be attained quickly for heat pump operating. Thus, it improves the property of the system.