Experimental Study of Thermoelectric Heat Pump Water Heater with Exhaust Heat Recovery from Kitchens  

作　　者：LIU Zhong-bing,ZHANG Ling,YANG Zhang,XU Ming,HAN Tian-he(College of Civil Engineering,Hunan University,Changsha,Hunan 410082,China) 

出　　处：《湖南大学学报（自然科学版）》2009年第S1期131-135,共5页Journal of Hunan University:Natural Sciences

基　　金：Supported by Hunan Science and Technology Office(06wk3023);National High Technology Research and Development Program of China(2006AA05Z229);Project-sponsored by SRFfor ROCS,SEM

摘　　要：A new kind of thermoelectric heat pump water heater for kitchens exhaust heat recovery was presented,and its performances were investigated under different operating voltages.The experiment results show that the coefficient of performance decreases and the temperature difference between the hot and cold sides becomes larger with the increase of the operating voltage,but the heating time becomes short.The higher the temperature of water,the greater the temperature difference between the hot and cold sides,leading to a smaller coefficient of performance.Under an exhaust temperature of 36 ℃,the coefficient of performance decreases from 1.66 to 1.22 when the temperature of water increases from 28 ℃ to 46 ℃ with operating voltage 16 V.Performance tests illustrate that,compared with the conventional electrical water heaters,the new kind of thermoelectric heat pump water heater is more coefficient.A new kind of thermoelectric heat pump water heater for kitchens exhaust heat recovery was presented,and its performances were investigated under different operating voltages.The experiment results show that the coefficient of performance decreases and the temperature difference between the hot and cold sides becomes larger with the increase of the operating voltage,but the heating time becomes short.The higher the temperature of water,the greater the temperature difference between the hot and cold sides,leading to a smaller coefficient of performance.Under an exhaust temperature of 36 ℃,the coefficient of performance decreases from 1.66 to 1.22 when the temperature of water increases from 28 ℃ to 46 ℃ with operating voltage 16 V.Performance tests illustrate that,compared with the conventional electrical water heaters,the new kind of thermoelectric heat pump water heater is more coefficient.

关 键 词：THERMOELECTRIC heat PUMP KITCHENS EXHAUST water HEATER COEFFICIENT of performance 

分 类 号：TU822[建筑科学]