Research progress and application status of absorption heat pumps

Reviews the theoretical researches of thermodynamic analysis and optimization of absorption heat pump (AHP), and presents the application status of AHP in building heating, temperature conversion and industrial waste heat recovery. In heating aspect, AHP can effectively utilize low-grade heat sources such as air, soil and groundwater, so as to reduce the proportion of fossil fuels in heating energy and reduce air pollution. In temperature conversion and industrial waste heat recovery aspects, the application of AHP can improve the energy utilization efficiency of the system, and achieve dual benefits of energy saving and economy.