离子液体[mmim]DMP/CH_3OH溶液是具有一定应用潜力的新型吸收式制冷工质对,基于实验和文献数据,提出了针对该工质对的溶液饱和蒸气压、比热容和过量焓的经验方程,并绘制了p-t-x,h-ω图。在此基础上,对新工质对的单效吸收式制冷循环进行了分析,并与传统工质对进行了对比。结果表明:在一定工况范围内,[mmim]DMP/CH_3OH新工质对在循环倍率、COP等持性参数优于NH_3/H_2O体系,堪与LiBr/H_2O体系相媲美。 The ionic liquid [mmim] DMP / CH_3OH solution is a new type of absorption refrigeration refrigerant with some potential applications. Based on the experimental and literature data, the empirical equation of solution saturated vapor pressure, specific heat capacity and excess enthalpy is proposed. And draw ptx, h-ω map. On this basis, the single-effect absorption refrigeration cycle of the new working pair is analyzed and compared with the traditional working pair. The results show that the new working medium of [mmim] DMP / CH_3OH is superior to LiBr / H_2O system in terms of cycle ratio, COP and other parameters which are better than NH_3 / H_2O in some working conditions.