中文摘要：

空气调节过程中,冷凝除湿方式要求制冷剂的蒸发温度低于空气的露点温度,限制了空调器效率的提高.本文在传统的热泵空调机组的基础上,添加一个溶液除湿循环,利用吸湿性溶液调节空气的含湿量,此时制冷剂的蒸发温度可以较大幅度地提高,吸湿后的溶液用冷凝器的排热再生。文章计算了复合式空调机组在两种工作模式下的性能,研究了内部冷却流体温度、回热器效能和室外空气状态等因素对机组性能的影响。分析结果表明,溶液式复合空调机组具有较大的温、湿度调节范围,且机组效率较冷凝除湿机组显著提高。

英文摘要：

For a traditional vapor compression air conditioner, the evaporation temperature must be lower than the air dew point temperature in order to dehumidify the air, which limits the system efficiency. In this paper, investigations are carried out on a hybrid system which consists of a liquid desiccant cycle and a heat pump using plastic heat exchangers. In the hybrid system, air is dehumidified by liquid desiccant flowing on the evaporator surface, so that the evaporation temperature can be raised. The heat from condenser is used to regenerate the desiccant. System performances are calculated for both circulation and ventilation modes, also the effects of internal fluid temperature, desiccant heat recovery efficiency and outside air condition are analyzed. The results show that the system efficiency of hybrid air conditioner is considerably improved.