Experimental study on the performance of a multi-functional domestic air conditioner with integrated water heater

被引：11
|
作者：
Dong, Jiankai [1 ]
Li, Hui [1 ]
Yao, Yang [1 ]
Jiang, Yiqiang [1 ]
Zhang, Xinran [2 ]
机构：
[1] Harbin Inst Technol, Sch Municipal & Environm Engn, Harbin, Peoples R China
[2] China Aviat Planning & Design Inst Grp Co Ltd, Beijing, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2017年 / 120卷
基金：
中国博士后科学基金;
关键词：
Heat pump; Air conditioner; Domestic hot water supply; By-pass pipe; Energy-saving; RESIDENTIAL BUILDINGS; HONG-KONG; RECOVERY; SEHRAC; PUMP;
D O I：
10.1016/j.applthermaleng.2017.01.086
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The recovery of condenser heat is concerned one of the most effective methods to curb energy consumption in residential dwellings. Aiming at recovering the condenser heat of domestic air conditioner, this paper experimentally studied a multi-functional domestic air conditioner with integrated water heater (MDACWH) which can effectively provide space - cooling and domestic hot water simultaneously. The dynamic operation characteristics, such as hot water supply and energy efficiency were tested to verify the availability of the MDACWH. The results showed that the MDACWH can effectively heat the domestic hot water without losing its cooling capacity. It was also found that with the use of MDACWH, the coefficient of comprehensive energy performance of the MDACWH was about 1.58 times higher than that of the unmodified experimental unit. Furthermore, the water-heating time was shorten remarkably from 128.5 min to 22.0 min. The novel domestic air conditioner, compared with the unmodified initial prototype, can be more practical and provide significant energy savings in space-cooling and hot water supply. (C) 2017 Published by Elsevier Ltd.
引用
收藏
页码：393 / 401
页数：9
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