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浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (9): 1666-1671    DOI: 10.3785/j.issn.1008-973X.2013.09.023
能源工程     
R410A直膨式太阳能热泵热水器性能研究
孔祥强,林琳,李瑛, 杨前明
山东科技大学 机械电子工程学院,山东 青岛 266590
Performance  of  direct expansion solar assisted heat pump water heater using R410A
KONG Xiang-qiang, LIN Lin, LI Ying, YANG Qian-ming
College of Mechanical and Electronic Engineering, Shandong University of Science and Technology,Qingdao 266590,China
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摘要：

为了研究各种参数对以R410A为工质的直膨式太阳能热泵热水器系统的性能特性的影响,在建立太阳能集热/蒸发器和冷凝器的分布参数均相流动模型、压缩机和电子膨胀阀的集总参数模型，以及系统制冷剂充注量模型的基础上,编制了系统性能模拟程序,以电子膨胀阀进、出口焓值和制冷剂充注量为迭代判据进行求解.在太阳能集热/蒸发器出口过热度维持不变的条件下,模拟分析了环境参数、运行参数和结构参数对热水加热时间、集热器集热效率和系统性能系数（COP）的影响特性.模拟结果表明：太阳辐射强度和环境温度的升高可显著提高系统性能系数,并缩短热水加热时间|压缩机转速的提高使得系统性能系数降低,但可有效缩短热水加热时间|水箱容积的变化对系统性能系数影响很小|适度增加集热面积可提高系统性能系数.
Abstract:

In order to study the influence of parameters on the operation characteristics of a direct expansion solar assisted heat pump water heater (DX-SAHPWH) system using R410A, based on the distributed parameter and homogeneous flow models of solar collector/evaporator and condenser, the lumped parameter models of compressor and electronic expansion valve and the refrigerant charge model, a simulation program of the DX-SAHPWH system using R410A was coded, which was solved with the iterative calculation of the inlet and outlet enthalpy of electronic expansion valve and the refrigerant charge. For a fixed superheat degree at the outlet of the collector/evaporator, the effects of various parameters, including environmental, operational and structural parameters, on heating time, collector efficiency and system coefficient of performance (COP) were simulated and analyzed. Simulation  indicates that the system COP increases evidently and the heating time decreases with the  increases of the solar radiation intensity and the  ambient temperature. The increase of compressor speed con result in the decreases of the system COP and the heating time. However, the influence of water storage volume on the system COP is very small. The system COP would increase with the moderate increase of the collector area．
出版日期: 2013-09-01
:  TK 11.4  
基金资助:

山东省高等学校科技计划资助项目（J11LD63）|山东省泰山学者建设工程专项经费资助项目.
作者简介: 孔祥强（1976 -），男，副教授.主要从事建筑节能技术研究. E-mail：kxqiangly@126.com
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引用本文:

孔祥强,林琳,李瑛, 杨前明. R410A直膨式太阳能热泵热水器性能研究[J]. J4, 2013, 47(9): 1666-1671.

KONG Xiang-qiang, LIN Lin, LI Ying, YANG Qian-ming. Performance  of  direct expansion solar assisted heat pump water heater using R410A. J4, 2013, 47(9): 1666-1671.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.09.023    或    http://www.zjujournals.com/eng/CN/Y2013/V47/I9/1666

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