寒冷地区空气源热泵辅助太阳能热水器供暖性能

doi:10.16183/j.cnki.jsjtu.2022.005

上海交通大学学报 ›› 2023, Vol. 57 ›› Issue (7): 910-920.doi: 10.16183/j.cnki.jsjtu.2022.005

所属专题：《上海交通大学学报》2023年“新型电力系统与综合能源”专题

• 新型电力系统与综合能源 • 上一篇下一篇

寒冷地区空气源热泵辅助太阳能热水器供暖性能

李金平¹^,²^,³(), 董玉慧¹^,²^,³, 李彩军¹^,²^,³, 代静波¹^,²^,³, 牛轶男¹^,²^,³, NOVAKOVIC Vojislav⁴

1.兰州理工大学甘肃省生物质能与太阳能互补供能系统重点试验室, 兰州 730050
2.兰州理工大学能源与动力工程学院, 兰州 730050
3.兰州理工大学西北低碳城镇支撑技术协同创新中心, 兰州 730050
4.挪威科技大学能源与过程工程系,挪威特隆赫姆 7491

收稿日期:2022-01-05 修回日期:2022-03-21 接受日期:2022-05-05 出版日期:2023-07-28 发布日期:2023-07-28
作者简介:李金平(1977-),男,教授,博士生导师,主要从事先进可再生能源系统方面的研究;E-mail:lijinping77@163.com
基金资助:
国家重点研发计划项目(2019YFE0104900);国家重点研发计划项目(NRC:304191-ENERGIX);国家自然科学基金项目(51676094);甘肃省高等学校产业支撑项目(2021CYZC-33);兰州市人才创新创业项目(2017-RC-34);兰州市人才创新创业项目(2020-RC-126)

Performance of Solar Vacuum Tube Water Heater-Air Source Heat Pump System in Cold Area

LI Jinping¹^,²^,³(), DONG Yuhui¹^,²^,³, LI Caijun¹^,²^,³, DAI Jingbo¹^,²^,³, NIU Yinan¹^,²^,³, NOVAKOVIC Vojislav⁴

1. Gansu Key Laboratory of Complementary Energy System of Biomass and Solar Energy, Lanzhou University of Technology, Lanzhou 730050, China
2. School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China
3. Collaborative Innovation Center for Supporting Technology of Northwest Low-Carbon Towns, Lanzhou University of Technology, Lanzhou 730050, China
4. Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim 7491, Norway

Received:2022-01-05 Revised:2022-03-21 Accepted:2022-05-05 Online:2023-07-28 Published:2023-07-28

摘要/Abstract

摘要：

为提高太阳能热水器供暖的稳定性并大幅降低空气源热泵供暖的成本,提出空气源热泵辅助太阳能真空管热水器供暖构想,在甘肃省兰州市七里河区魏岭乡绿化村搭建空气源热泵辅助太阳能热水器供暖试验系统,详细研究了晴天、阴天及多云3种典型工况下系统的集热效率、热泵性能系数、系统太阳能保证率和系统能效比等.研究结果表明,晴天、阴天及多云工况下太阳能集热器有效得热量分别为75.5、4.1和49. 2 kW·h,集热效率分别为61.3%、26.6%、55.2%,太阳能热泵平均性能系数(COP)分别为3.6、3.4、3.6,空气源热泵平均COP分别为0、2.9、3.1,系统实际供热量分别为113.4、125.9和124.8 kW·h,系统耗电量分别为33.4、50.5和42.7 kW·h,系统太阳能保证率分别为66.6%、3.3%、39.4%,系统能效比分别为3.4,2.5,2.9.研究证明了太阳能真空管集热器-空气源热泵系统用于寒冷地区供暖的可行性,为寒冷地区供暖提供了一种新途径.

关键词: 太阳能热水器, 空气源热泵, 集热效率, 性能系数, 系统太阳能保证率, 系统能效比

Abstract:

To improve the stability of solar heating and reduce the high cost of air source heat pump heating, the idea of air source heat pump assisted solar stable heating was proposed. A solar vacuum tube water heater-air source heat pump system was developed and bulit in Weiling Township, Qilihe District, Lanzhou, Gansu Province. The performance of the system was compared to analyze the heat collection efficiency, heat pump coefficient of performance (COP), solar energy guarantee rate, and energy efficiency ratio under sunny, overcast, and cloudy conditions. The results show that the effective heat obtained by solar energy under sunny, overcast, and cloudy conditions is 75.5 kW·h, 4.1 kW·h, and 49.2 kW·h respectively, the system heat collection efficiency is 61.3%, 26.6%, and 55.2%, the average coefficient of performance(COP) of the solar heat pump is 3.6, 3.4, and 3.6, the average COP of the air source heat pump is 0, 2.9, and 3.1, the actual heat supply of the system is 113.4 kW·h, 125.9 kW·h, and 124.8 kW·h, the system power consumption is 33.4 kW·h, 50.5 kW·h, and 42.7 kW·h, the system solar energy guarantee rate is 66.6%, 3.3%, and 39.4%, and the system energy efficiency ratio is 3.4, 2.5, and 2.9 respectively. The research results prove that the solar vacuum tube collector-air source heat pump system is feasible for heating and provide a new way for heating in cold areas.

Key words: solar vacuum tube water heater, air source heat pump, heat collection efficiency, coefficient of performance (COP), solar fraction, system energy efficiency ratio

中图分类号:

TK529

李金平, 董玉慧, 李彩军, 代静波, 牛轶男, NOVAKOVIC Vojislav. 寒冷地区空气源热泵辅助太阳能热水器供暖性能[J]. 上海交通大学学报, 2023, 57(7): 910-920.

LI Jinping, DONG Yuhui, LI Caijun, DAI Jingbo, NIU Yinan, NOVAKOVIC Vojislav. Performance of Solar Vacuum Tube Water Heater-Air Source Heat Pump System in Cold Area[J]. Journal of Shanghai Jiao Tong University, 2023, 57(7): 910-920.

图/表 21

表1

图1

图2

图3

表2

表3

测量参数与计算参数对应表

计算参数	测量参数	测量仪器
太阳能集热器组有效利用热量,Q_s	热水流量,M'	流量计
	储热水箱温度,T_tank	温度传感器
	水箱出口温度,T_t,out	温度传感器
	水箱进口温度,T_t,in	温度传感器
太阳能热水器组日平均集热效率, $η - P V$	太阳能集热器组采光面接收到的瞬时太阳辐射强度,I_t	太阳辐射仪
热泵机组实际制热量,Q_h	热水流量,M'	流量计
	冷凝器进口温度,T_c,in	温度传感器
	冷凝器出口温度,T_c,out	温度传感器
热泵, λ_COP	压缩机的耗电量,W_h	功率表
建筑冬季采暖热负荷,Q	热水流量,M'	流量计
	末端进口温度,T_m,in	温度传感器
	末端出口温度,T_m,out	温度传感器
太阳能保证率,f	—	—
系统能效比, η_SEER	系统能耗,W	功率表

表3

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图9

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围护结构	材料类型	厚度/ mm	导热系数λ/ [W·(m·K)^-1]
墙体内外表面	水泥砂浆	5	0.93
外墙	多孔砖	240	0.6
屋顶	双面彩钢泡沫夹芯复合板	100	0.422
门	普通钢制	80	1.5
窗	普通中空玻璃	3	3.1

设备型号	规格参数	厂商
HJF-S3风速仪	量程:0~70 m/s,精度:±0.3%	锦州天诺环能仪器有限公司
JTBQ-2太阳总辐射表	量程:0~2 kW/m²,精度:±2%,灵敏度:7~14 μV/(W·m²)	锦州天诺环能仪器有限公司
LWGY-MIK-DN25-C流量计	输出信号:4~20 mA,量程:0~1 m³/h,精度:±1.0%	杭州美控自动化技术有限公司
Pt100温度传感器	量程:-50~150 ℃,精度:A级	杭州美控自动化技术有限公司
DFM-W-AC-D-P1功率表	输出信号:4~20 mA,量程:0~1.1 kW,精度:±0.4%	创鸿仪表有限公司
DSW-9603-A-B功率表	输出信号:4~20 mA,量程:0~44 kW,精度:±0.4%	创鸿仪表有限公司

寒冷地区空气源热泵辅助太阳能热水器供暖性能

Performance of Solar Vacuum Tube Water Heater-Air Source Heat Pump System in Cold Area

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