太阳能-空气双热源热泵系统性能实验

doi:10.11949/0438-1157.20200521

化工学报 ›› 2020, Vol. 71 ›› Issue (12): 5498-5505.DOI: 10.11949/0438-1157.20200521

太阳能-空气双热源热泵系统性能实验

侯隆澍^1,²(),全贞花¹(),杜伯尧¹,赵耀华¹,江波³

^1.北京工业大学绿色建筑环境与节能技术北京市重点实验室，北京 100124
^2.住房和城乡建设部科技与产业化发展中心，北京 100835
^3.北京万兴建筑集团有限公司，北京 102600

收稿日期:2020-05-08 修回日期:2020-08-01 出版日期:2020-12-05 发布日期:2020-12-05
通讯作者: 全贞花
作者简介:侯隆澍（1988—），男，博士研究生，高级工程师，houlongshu@sina.com
基金资助:
国家自然科学基金项目(51778010);国家重点研发计划项目(2016YFC0700104)

Performance experiment on solar energy and air dual-heat-source heat pump system

HOU Longshu^1,²(),QUAN Zhenhua¹(),DU Boyao¹,ZHAO Yaohua¹,JIANG Bo³

^1.Beijing Key Laboratory of Green Building and Energy-efficiency Technology, Beijing University of Technology, Beijing 100124, China
^2.Center of Science and Technology & Industrialization Development, Ministry of Housing Urban-Rural Development of People’s Republic of China, Beijing 100835, China
^3.Beijing Wanxing Building Group Co. , Ltd. , Beijing 102600, China

Received:2020-05-08 Revised:2020-08-01 Online:2020-12-05 Published:2020-12-05
Contact: QUAN Zhenhua

摘要/Abstract

摘要：

将平板微热管光伏光热组件改造为新型光伏光热蒸发器，研发新型太阳能-空气双热源热泵系统，对太阳能供热模式和双热源供热模式下系统的运行性能进行研究。研究表明：受太阳辐射和环境温度影响，双热源供热模式下环境空气的作用会在放热和吸热之间转换，环境温度与背板温度的温差在-3.1~3.5℃之间波动；双热源供热模式适合在低辐照条件下运行，其热效率、综合性能效率和COP分别达56.7%、81.7%和2.38，比太阳能供热模式提升20.3%、25.0%和6.7%；在高辐射条件下，双热源供热模式会造成系统散热加快，但是对系统发电性能有提升作用。根据上述特性，当背板温度小于环境温度时启动双热源供热模式，反之启动太阳能供热模式，可以进一步提升系统的运行效果。

关键词: 平板微热管阵列, 太阳能, 传热, 辐射, 热泵

Abstract:

The flat micro heat pipe array photovoltaic-thermal module was retrofitted into a photovoltaic-thermal evaporator, and then a novel solar energy and air dual-heat-source heat pump system was developed. The operation performance of the system operating in the solar energy mode (S) as well as the solar energy and air dual-heat-source mode (SA) was studied in detail. Studies have shown that: affected by solar radiation and ambient temperature, the role of ambient air in the dual heat source heating mode will switch between heat release and heat absorption, and the temperature difference between ambient temperature and backplane temperature fluctuates between -3.1—3.5℃; the SA mode was suitable for low solar radiation condition, and its thermal efficiency, comprehensive performance efficiency and COP were 56.7%, 81.7% and 2.38 respectively, which were 20.3%, 25.0% and 6.7% higher than that of the S mode; under the high solar radiation condition, the SA mode would accelerate the heat dissipation of the system, but it could improve the electrical performance of the system. According to the above characteristics, it would get the better operation performance operating in SA mode when the backplane temperature was lower than the ambient temperature as well as operating in S mode when the backplane temperature was higher than the ambient temperature.

Key words: flat micro heat pipe array, solar energy, heat transfer, radiation, heat pump

中图分类号:

TK 519

侯隆澍,全贞花,杜伯尧,赵耀华,江波. 太阳能-空气双热源热泵系统性能实验[J]. 化工学报, 2020, 71(12): 5498-5505.

HOU Longshu,QUAN Zhenhua,DU Boyao,ZHAO Yaohua,JIANG Bo. Performance experiment on solar energy and air dual-heat-source heat pump system[J]. CIESC Journal, 2020, 71(12): 5498-5505.

图/表 11

图1 平板微热管阵列示意图

Fig.1 Schematic diagram of flat micro heat pipe array

图2 MHPA-PV/TE示意图1—光伏组件；2—平板微热管阵列；3—空气换热器；4—保温层；5—制冷剂换热器；6—风机

Fig.2 Schematic diagram of MHPA-PV/TE

图3 DHS-HP实验平台示意图1—MHPA-PV/TE；2—压缩机；3—套管换热器；4—贮热水箱；5—电磁阀；6—四通换向阀；7—毛细管；8—过滤器；9—储液罐；10—单向阀；11—风冷换热器；12—轴流风机；13—循环水泵；14—数据采集仪；15—计算机；—温度传感器；—功率传感器；—流量传感器；—压力传感器；—电流传感器；—电压传感器；—风速传感器

Fig.3 Schematic diagram of DHS-HP system

表1 测试设备和传感器参数

Table 1 Types of related measured instruments and sensors

名称	型号	量程	精度
热电偶	T	-200~350℃	0.5℃
热电阻	Pt100	-40~150℃	0.1℃
压力传感器	MIK6100	0.1~2.5 MPa	0.5%
制冷剂流量传感器	YZCL-4	5~250 L/h	0.5%
水流量传感器	LD-20	0.2~2.0 m3/h	1.0%
电流表	YG1951-AK1R	0~30 A	0.5%
电压表	YG195U-AK1R	0~100 V	0.5%
功率传感器	S350	0~4 kW	1.0%
照度计	TRT-2	0~2000 W/m²	2.0%

图4 太阳辐照与环境温度变化曲线

Fig.4 Variation curves of solar radiation and ambient temperature

图5 环境温度与蒸发器背板温度以及环境温度与蒸发器出风温度的差值的变化曲线

Fig.5 Variation curves of temperature differences in ambient air and back panel as well as ambient air and outlet air

图6 得热量和热效率的变化曲线

Fig.6 Variation curves of heat gain and thermal efficiency

图7 发电量和电效率的变化曲线

Fig.7 Variation curves of power generation and electrical efficiency

图8 蒸发压力和冷凝压力的变化曲线

Fig.8 Variation curves of evaporation and condensation pressures

图9 压缩机功率和水箱温度的变化曲线

Fig.9 Variation curves of energy consumption and water tank temperature

图10 总效率和COP的变化曲线

Fig.10 Variation curves of overall efficiency and COP

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太阳能-空气双热源热泵系统性能实验

Performance experiment on solar energy and air dual-heat-source heat pump system

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