Experiment And Simulation On The Performance Of Air- Conditioner With Condenser Heat Recovery

In allusion to the serious waste of resources、thermal pollution、primary energy consumption which caused by residential use of traditional air conditioning and water heater. So in this paper, offered a new system which can use the condensing heating from air conditioning to take domestic hot water. This new system can achieve air cooled refrigeration、joint cooled and hot water supply、conventional heating three modes.In this study, a condensing heat recovery air conditioner performance test bench was build. The system performance of the joint refrigeration and hot water supply mode are tested. The test are in different outdoor dry bulb temperature、different heat storage tank volume、different cooling water circulation flow and different water cooled condenser inlet water temperature. The impacts of these factors on system performance are analyzed. The performances in air cooled mode in different indoor and outdoor ambient temperature are also experimental studied. The systems of performance in air cooled mode are compared with the performance in joint cooling and hot water supply mode. Through the experimental study, we know as long as the control hot water temperature which use of condensing heat recovery air conditioner can not only meet the normal cooling requirements but also providing a certain temperature of domestic hot water.The energy mathematical mode of condensing heat recovery air conditioners and air cooled air conditioner are established. A family of three residential users in Guangzhou is illustrated. First, the hourly cooling load of the room and hot water need are calculated. Considering the outdoor by case meteorological parameters、 indoor hourly cooling load and the need of hot water, the two modes of air conditioner are simulation and comparison. The simulation results show that, compared with air cooled air conditioner, condensing heat recovery air cooled air conditioner show a distinct advantage.Though the above research, a more comprehensive understanding of the operation performance of the condensing heat recovery air conditioner and its energy efficiency. This study can provide a more reliable theoretical basis and technical support for products.