An experimental investigation of the performance of an air-source heat pump hot-water system based on saltwater energy towers

被引：1

作者：

Chen, Wei ^{[1
]}

Qu, Li-Juan ^{[1
]}

Wang, Chao ^{[2
]}

Yu, Zi-Tao ^{[2
]}

Wang, Jing-Hua ^{[3
]}

机构：

[1] Logistics Management Department, Zhejiang University

[2] Institute of Thermal Science and Power Systems, Zhejiang University

[3] Architectural Design and Research Institute, Zhejiang University

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2012年 / 46卷 / 08期

关键词：

Air-source heat pump; Coefficient of performance (COP); Hot-water supply; Saltwater energy tower;

D O I：

10.3785/j.issn.1008-973X.2012.08.020

中图分类号：

学科分类号：

摘要：

To improve the efficiency and adaptability of the existing energy tower-based air-source heat pumps, a new concept of tunable air-source heat pumps was proposed based on saltwater energy towers. A hot-water system incorporated with this new type of heat pumps was designed and constructed. The performance of the system was analyzed and compared between typical summer and winter months. Variations of the coefficient of performance (COP) of the system were presented as functions of ambient temperature and humidity, flow rate and temperature of supplying/recirculating water, make-up water temperature, and power consumption. The COPs of the entire system, heating portion, and heat pump were 1.44, 1.75 and 3.55 for summer, respectively, whereas those were 2.07, 2.33 and 3.29 for winter. The system had been operated successfully for more than 1 a and was running well below 0°C in winter.

引用

页码：1485 / 1489+1533

共 15 条

[1]

Hepbasli A., Kalinci Y., A review of heat pump water heating systems, Renewable and Sustainable Energy Reviews, 13, 6-7, pp. 1211-1229, (2009)

[2]

Ma G., Chai Q., Jiang Y., Experimental investigation of air-source heat pump for cold regions, International Journal of Refrigeration, 26, 1, pp. 12-18, (2003)

[3]

Ding Y., Chai Q., Ma G., Et al., Experimental study of an improved air source heat pump, Energy Conversion and Management, 45, 15-16, pp. 2393-2403, (2004)

[4]

Yao Y., Jiang Y., Deng S., Et al., A study on the performance of the airside heat exchanger under frosting in an air source heat pump water heater/chiller unit, International Journal of Heat and Mass Transfer, 47, 17-18, pp. 3745-3756, (2004)

[5]

Byun J.-S., Lee J., Jeon C.-D., Frost retardation of an air-source heat pump by the hot gas bypass method, International Journal of Refrigeration, 31, 2, pp. 328-334, (2008)

[6]

Byrne P., Miriel J., Lenat Y., Experimental study of an air-source heat pump for simultaneous heating and cooling-Part 2: Dynamic behaviour and two-phase thermosiphon defrosting technique, Applied Energy, 88, 9, pp. 3072-3078, (2011)

[7]

Li Y., Chen G., Tang L., Et al., Analysis on performance of a novel frost-free air-source heat pump system, Building and Environment, 46, 10, pp. 2052-2059, (2011)

[8]

Zhang C., Yang H.-H., Wu J.-B., Et al., Comparison of three typical heat-source towers with different structures, Refrigeration and Air-Conditioning, 9, 6, pp. 81-83, (2009)

[9]

Zhang C., Yang H.-H., Liu Q.-K., Et al., Analysis of closed-type heat-source tower used in air conditioning system, Building Energy and Environment, 28, 6, pp. 71-73, (2009)

[10]

Zhang C., Yang H.-H., Liu Q.-K., Et al., Application of an open-type heat-source tower in the heat pump system, Energy Research and Information, 26, 1, pp. 52-56, (2010)

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