溴化锂吸收式热泵性能研究
Performances of LiBr absorption-type heat pumps
摘要：
研究了在定流量/变温差和定温差/变流量条件下中温水对溴化锂吸收式热泵机组性能的影响。结果表明：在定流量/变温差工况下，中温水的温差越小，溴化锂吸收式热泵的性能系数（COP）越高，但在测试范围内变化率小于8%。在定温差/变流量工况下，当中温水的流量大于75%时，性能系数略微下降；但小于75%时，性能系数变化较快。
Abstract：
Studies the influence of middle temperature water on the performances of LiBr absorption-type heat pump unit under the constant flow rate/variable temperature difference and variable flow rate/constant temperature difference conditions. The results show that under the constant flow rate/variable temperature difference condition, the smaller the middle water temperature difference, the higher the coefficient of performance (COP), but in the test the change rate is less than 8%. When under the variable flow rate/constant temperature difference condition and middle temperature water flow ratio higher than 75%, the COP slightly decreased; but when middle temperature water flow ratio lower than 75%, the COP obviously changed.
Keywords:LiBrabsorption-typeheatpump,coefficientofperformance,constantflowrate/variabletemperaturedifference,variableflowrate/constanttemperaturedifference,middletemperaturewater