【摘要】 CO2 作为热泵热水器工质在跨临界状态下循环 ,在气体冷却器中产生温度滑移 ,因此适合水的加热。在分析了CO2 跨临界循环特点的基础上指出 ,CO2 可与传统的制冷剂及其替代物相竞争 ,具有较高的制热效率更多还原

【Abstract】 To satisfy the environment protection of the working fluids,CFC and HCFC must be alternated.Attention is paid to natural refrigerant-carbon dioxide again.When CO 2 is used in heat pump water heater in trans-critical cycle,a gliding temperature will appear,which contributes to a good temperature adaptation when heating water.CO 2 can compete with the traditional refrigerant and its alternatives and have a high heating COP.更多还原