热电热泵储水式热水器的实验的研究.pdfVIP

2009全国热泵新技术及应用研讨会 热电热泵储水式热水器的实验研究 刘忠兵地，张泠1，徐敏1，张晓洁1，陈友明1 1．湖南大学土木工程学院建筑环境与设备工程，湖南410082；2．广州市建筑科学研究院， 广东510440 zhangl@hotmail．co．uk 摘要：设计并研制了容积为36L的回收气体余热的热电热采储水式热水器。针对该热电热泵储水式热水器， 对其制热性能进行实验研究，结果表明：相比直接采用铜板散热，热电热泵热端采用热管散热器散热时，散热效 果得到明显改善，热电热泵冷热端温差减小，制热系数增大。热水温度越高，制热系数越小：环境温度越高，制热 系数越大。热水温度较低时，电压越大，冷热端温差越大，制热系数越小。在环境温度25℃、热水温度30℃时， 电压从16V升高到28V，制热系数从1．32下降到1．15．此项研究可为热电熟泵回收气体中的废热制取热水的装置 设计和应用提供参考。 关键词：热电热泵，储水式热水器，冷热端温差，制热系数 onaThermoelectricHeat WaterHeater Investigation PumpStorage Liu Ling，XuMin，ZhangXiaoJie，Chen ZhongBing，Zhang YouMing of Enviromentand 410082 DepartmentBuilding EquipmentEngineering，HunanUniversity,Hunan zhangl@hotmail．CO．uk was forheat its is AbstractAthermoelectricheat waterheater andvolume36L． pumpstorage developedrecovery The of waterheater different thethermoelectricheat WaS under performance pumpstorage investigated conditions，the effectcanbe belxv02n resultsshowthattheheat enhancedandthe difference experiment exchange obviously temperature thehotandcoldsidesbecomes a coefficientof iswithheat heat on smaller,thereforelarger performance pipe exchange hotside with atthehotheatsink．Thethe ofwatersmallerthecoefficient comparedcopperplate highertemperatureis，the of becomesandthe theambient thecoefficientof becomes． performance higher