Comparative study on shading performance of MHP-PV/T inside and outside Chinese greenhouse in winter

doi:10.1016/j.solener.2022.05.040

	Comparative study on shading performance of MHP-PV/T inside and outside Chinese greenhouse in winter
	Li, Jinping1,2,3,5 ; Liu, Xiaomin 1,2,3; Han, Xiaoxing 1,2,3; Wei, Shifan 1,2,3; Novakovic, Vojislav 4
	2022-07-01
发表期刊	SOLAR ENERGY
ISSN	0038-092X
卷号	240 页码:269-279
摘要	Due to great heat loss for Chinese greenhouse cooling with vents in winter, Photovoltaic /Thermal (PV/T) was proposed for shading and cooling of Chinese greenhouse in winter and two micro heat pipe PV/T (MHP-PV/T) systems were developed inside and outside a Chinese greenhouse in Lanzhou City. Two systems were compared to discover the electrical, thermal and comprehensive performance when the inclination angle of MHP-PV/T panels was 45 from 20th to 22th of December 2020. The results reveal that daily electrical performance of outside MHP-PV/T (OMHP-PV/T) system is better than inside MHP-PV/T (IMHP-PV/T) system while daily thermal operation of the OMHP-PV/T is significantly lower than the IMHP-PV/T system. The average daily electrical efficiency of OMHP-PV/T system in three days is 8.3%, with the electrical power of 83.94 W, and the mean daily thermal efficiency is 16.07%, with solar thermal power of 96.83 W. It has overall energy power of 317.73 W and overall energy efficiency of 37.91%, the cumulative energy profit is 2.22 kW.h correspondingly. The average daily electrical efficiency of IMHP-PV/T system is about 4.57%, with the electrical power of 32.0 W, and the thermal efficiency of 40.93%, for overall energy power of 375.81 W. Overall energy efficiency is around 53.28%, with a cumulative overall energy gain is 2.63 kW.h relatively. Therefore, the comprehensive perfor-mance of IMHP-PV/T is better than OMHP-PV/T. The results of the study establish the feasibility and a new method of using MHP-PV/T to provide shading for China greenhouse cooling and dehumidification in cold winter regions.
关键词	MHP-PV/T Thermal efficiency Electrical efficiency Overall energy power Overall energy efficiency
DOI	10.1016/j.solener.2022.05.040
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:000809774000001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20222412211219
EI主题词	Heat pipes
EI分类号	525.2 Energy Conservation619.1 Pipe, Piping and Pipelines641.2 Heat Transfer821.6 Farm Buildings and Other Structures
来源库	WOS
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158940
专题	能源与动力工程学院
通讯作者	Li, Jinping
作者单位	1.Gansu Key Lab Complementary Energy Syst Biomass &, Lanzhou, Peoples R China; 2.Collaborat Innovat Ctr Supporting Technol Northwes, Lanzhou, Peoples R China; 3.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou, Peoples R China; 4.Norwegian Univ Sci & Technol, Dept Energy & Proc Engn, Trondheim, Norway; 5.Lanzhou Univ Technol, Collaborat Innovat Ctr Supporting Technol Northwes, Sch Energy & Power Engn, Gansu Key Lab Complementary Energy Syst Biomass &, Lanzhou, Peoples R China
第一作者单位	能源与动力工程学院; 兰州理工大学
通讯作者单位	能源与动力工程学院; 兰州理工大学
推荐引用方式 GB/T 7714	Li, Jinping,Liu, Xiaomin,Han, Xiaoxing,et al. Comparative study on shading performance of MHP-PV/T inside and outside Chinese greenhouse in winter[J]. SOLAR ENERGY,2022,240:269-279.
APA	Li, Jinping,Liu, Xiaomin,Han, Xiaoxing,Wei, Shifan,&Novakovic, Vojislav.(2022).Comparative study on shading performance of MHP-PV/T inside and outside Chinese greenhouse in winter.SOLAR ENERGY,240,269-279.
MLA	Li, Jinping,et al."Comparative study on shading performance of MHP-PV/T inside and outside Chinese greenhouse in winter".SOLAR ENERGY 240(2022):269-279.