Variable working condition performance study on a single-effect condensing heat pump with two-stage evaporation and two-stage absorption

In order to increase the COPs of absorption heat pumps, studies a single-effect LiBr absorption heat pump with two-stage evaporation and two-stage absorption. Compares the performances of heat pumps in different grades. After determining the heat pump process, simulates the variable working condition of radiator and radiant floor. Carries out the thermodynamic analysis on each heat exchange part of the heat pump. Exergy loss accounts for 36.8% of total loss under the design condition.