Experimental investigations on the thermal characteristics of a multi-functional air-conditioner

被引：0
|
作者：
Qiu, Fuqiang [1 ]
Du, Juanli [2 ]
Xu, Taoping [3 ]
机构：
[1] Tongling Univ, Sch Elect Engn, 1335 Cuihu 4th Rd,Tongguan Dist, Tongling 244061, Peoples R China
[2] Henan Univ Anim Husb & Econ, Sch Energy & Intelligent Engn, 16,Beilin Rd,Jinshui Dist, Zhengzhou 457000, Peoples R China
[3] Tongling Polytech, Dept Elect Engn, 2689 Cuihu 4th Rd,Tongguan Dist, Tongling 244061, Peoples R China
来源：
INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES | 2023年 / 18卷
关键词：
heat recovery; thermostatic expansion valve; domestic hot water heating; multi-function air-conditioner; heat pump; HEAT-RECOVERY; PUMP;
D O I：
10.1093/ijlct/ctac132
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents a novel schematic diagram of a multi-functional air-conditioner (NMFAC) with four operating modes to enhance energy efficiency and increase equipment utilization. A prototype was designed to test the performances according to Chinese condition standards. The results indicated that the NMFAC could run reliably all year round. In summer and winter, the space cooling and heating capacity were in normal ranges, with an average space cooling performance (COPsc) and heating performance (COPsh) of 2.73 and 3.58, respectively. In the water-heating only mode in season and out of season, the mean water heating performance (COPwh) varied from 2.97 to 4.2 under typical conditions as hot water was heated from 15 degrees C to 55 degrees C. In condensing heat recovery mode, the average COPwh and COPsc were 4.54 and 4.30, respectively, and the overall performance (COPcw) was up to 8.84.
引用
收藏
页码：218 / 227
页数：10
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