空气源热泵结合小温差风机盘管在高效舒适供热中的应用

doi:10.11949/j.issn.0438-1157.20161396

化工学报 ›› 2016, Vol. 67 ›› Issue (S2): 51-57.DOI: 10.11949/j.issn.0438-1157.20161396

空气源热泵结合小温差风机盘管在高效舒适供热中的应用

靳成成¹, 王如竹¹, 翟晓强¹, 金哲权²

1. 上海交通大学制冷与低温工程研究所, 上海 200240;
2. 挪威科技大学能源与过程技术研究所, 挪威特隆赫姆市

收稿日期:2016-10-08 修回日期:2016-10-13 出版日期:2016-12-30 发布日期:2016-12-30
通讯作者: 王如竹

Analysis of air source heat pump with small temperature difference fan-coil units for high efficient and comfort heating

JIN Chengcheng¹, WANG Ruzhu¹, ZHAI Xiaoqiang¹, JIN Zhequan²

1. Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China;
2. Institute for Energy and Process Technology, Norwegian University of Science and Technology, Trondheim, Norway

Received:2016-10-08 Revised:2016-10-13 Online:2016-12-30 Published:2016-12-30

摘要/Abstract

摘要：

传统空气源热泵空调冷热水机组多采用45℃的供水温度，40℃的回水温度。降低回水温度可有效增加机组效率，但回水温度的降低会导致室内末端换热量减小，所以需采用具有更强换热能力的小温差末端，且现代建筑多配备新风机，在新风机承担部分负荷的基础上亦可通过降低回水温度来增加机组效率。实验研究表明，在满足室内热负荷的前提条件下可将回水温度降低至30℃，COP更高，耗电量更小，是高效节能的运行模式。此外，所建立的Dymola模型从理论上验证了实验结果，在此基础上可以进行实际空调系统的能耗模拟。

关键词: 空气源热泵, 实验验证, 小温差末端, 优化, 动态仿真

Abstract:

The traditional air source heat pump(ASHP) space cooling system adopts 45℃ outlet water temperature(OWT) and 40℃ inlet water temperature(IWT).Reducing the IWT can enhance the unit efficiency leading to decreasing heat capacity.So adopting small-delta temperature terminal is necessary.Considering the modern building comes equipped with ventilator, the ventilator can support part load so that lower IWT strategy can be used to enhance unit efficiency.The IWT can be reduced to 30℃ under the premise of satisfying the indoor thermal load.This kind of system with higher COP and lower power consumption is an energy saving system.The Dymola model is established to verify the experimental results, then conducting the simulation of system energy consumption of actual air conditioning system.

Key words: air source heat pump, experimental validation, small temperature difference terminal, optimization, dynamic simulation

中图分类号:

TQ051.5

靳成成, 王如竹, 翟晓强, 金哲权. 空气源热泵结合小温差风机盘管在高效舒适供热中的应用[J]. 化工学报, 2016, 67(S2): 51-57.

JIN Chengcheng, WANG Ruzhu, ZHAI Xiaoqiang, JIN Zhequan. Analysis of air source heat pump with small temperature difference fan-coil units for high efficient and comfort heating[J]. CIESC Journal, 2016, 67(S2): 51-57.

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空气源热泵结合小温差风机盘管在高效舒适供热中的应用

Analysis of air source heat pump with small temperature difference fan-coil units for high efficient and comfort heating

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