基于氨水工质对的吸收式制冷和热泵技术中,氨和水分离时需要精馏而产生大量能耗.针对这一缺陷,本文提出改良措施:将离子液体[P4444]Cl作为添加剂加入氨水中,组成分离能耗较低的新工质体系.利用等温合成法,本工作测定了[P4444] Cl水溶液浓度为33.33％(质量分数)的NH3-H2O-[P4444]Cl体系在温度范围0～60℃、压力范围0～650kPa时的气液相平衡数据,并采用多项式方程对实验数据进行拟合得到模型参数.最后,本工作还讨论了该工质体系的其他热物性作为进一步开发的参考.
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