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暖通空调杂志社>期刊目次>2018年>第9期

溴化锂吸收式热泵性能研究

Performances of LiBr absorption-type heat pumps

匡胜严 周军华 谢吉平 黄维恺
远大空调有限公司

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。

关键词:溴化锂吸收式热泵,性能系数,定流量/变温差,定温差/变流量,中温水

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

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