An Integrated Heat Recovery Air-Conditioning System (IHRACS) with Double-Heating Series-Wound Heat Pump Part 1: Scheme and Performance
Remaining heat accumulates in underground commercial space, because of its special building envelope, the earth. Although exhaust air heat recovery is popularly adopted in air-conditioning systems to make use of it, there is still plentiful potential on heat recovery. This paper brought up an integrated heat recovery air-conditioning system (IHRACS) with double-heating series-wound heat pump, which mainly consists of water chillers, air-handling units (AHU), air-source heat pumps (ASHP), high temperature water-to-water heat pumps (WWHP), etc. In this system, not only waste heat/cool in exhaust air is recovered by ASHPs, but also condenser heat of chillers by WWHPs. For each part of the system, including water chiller, high temperature WWHP and ASHP, quasidynamic modelling based on each thermal balance state was implemented respectively. Based on these and the fact of an underground shopping center in Harbin, China, energy performance was calculated under year-round air-conditioning load in summer, winter and transition season respectively. According to year-round simulation result, IHRACS consumes electricity by 40.6 kWh/m, and saves equivalent primary energy by 393 MJ/m2 compared to a conventional system (electric chiller +AHU), besides domestic hot-water supply. Furthermore, its believed that this system can be applied in most cities in China, with a potential of saving more energy than in Harbin.
Ezhaust air heat recovery Condenser heat recovery Heat pump Domestic hot-water supply Energy saving
Ling Ye Yiqiang Jiang Yang Yao Zuiliang Ma Fuhe Lu
Institute of Heat Pump and Air Conditioning Technology,Harbin Institute of Technology,Harbin,China Beijing Capital Development Holding (Group) Co.,LTD,Beijing,China
国际会议
The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)
南京
英文
1688-1695
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）