CO_2跨临界水——水热泵循环系统的实验研究

Experiment of a CO_2 water-to-water heat pump system

在作者设计和建立的实验台上进行了CO2 跨临界水—水热泵多种工况的循环性能实验研究 ,系统运行稳定、调节方便。实验结果表明 ,系统运行时的最大制冷 (热 )系数取决于系统的蒸发温度和气体冷却器出口温度。CO2 跨临界循环热泵较之传统工质热泵具有较大优势 ,尤其是在高温热泵领域。

Carries out a series of experiment of a heat pump system on CO 2 transcritical cycle on a special built rig. The system demonstrates stability in operation and easiness in control. Results from the experiment show that there exists a maximum coefficient of performance and it depends on the evaporation temperature and outlet temperature of the gas cooler. CO 2 transcritical cycle is advantageous over conventional refrigerants, especially in higher temperature application fields. Points out some measures in improving the system.