干旱区生态环境知识资源中心(Arid): Performance measurement and configuration optimization based on orthogonal simulation method of earth-to-air heat exchange system in cold-arid climate

Arid

DOI	10.1016/j.enbuild.2024.114001
	Performance measurement and configuration optimization based on orthogonal simulation method of earth-to-air heat exchange system in cold-arid climate
	Zhang, Dong; Zhang, Jingrui; Liu, Chunyang; Yan, Chengtao; Ji, Jinchao; An, Zhoujian
通讯作者	Zhang, D
来源期刊	ENERGY AND BUILDINGS
ISSN	0378-7788
EISSN	1872-6178
出版年	2024
卷号	308
英文摘要	The earth -to -air heat exchanger (EAHE) is a remarkable technology that taps into the Earth's subsurface heat to either heat or cool the air circulating within buried underground pipes, which can effectively reduce building energy consumption. In cold -arid regions of northwest China, outdoor climate parameters vary considerably throughout the year, and shallow soil temperatures also fluctuate dramatically. This dynamic thermal environment significantly impacts the practical application of the EAHE system. Furthermore, the operation efficiency of the EAHE system can be influenced by the configuration of system parameters. Therefore, this paper takes an EAHE project in Lanzhou as the research object to investigate the operation performance, energy consumption and economy of EAHE in the cold -arid regions of Northwest China. The research results show that heat exchange potential is high in summer and winter, and the outlet temperature varies more gently in winter. During the summer, the cooling capacity of the system is sufficient to the cooling demands of the building, without using auxiliary equipment for cooling; compared to an air-cooled unit with a COP of 3.2, the system reduces cooling energy consumption by 2063.4 kWh. Moreover, we determined the influence degree and optimal scheme of each factor under different evaluation indexes through orthogonal simulation. The specific parameters of the optimal scheme are as follows: pipe length 20 m, pipe diameter 100 mm, buried depth 4 m, and airflow velocity 7 m/s. Compared with the original scheme, the heat transfer efficiency and heat transfer power of this scheme are increased by 37.91 % and 17.6 %, respectively, and the cost per unit heat transfer power is 11,700 CNY/kW, which is 8000 CNY/kW lower than the original scheme.
英文关键词	Earth-to-air heat exchanger Cold-arid climate Orthogonal simulation Configuration optimization
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001200045600001
WOS关键词	THERMAL PERFORMANCE ; HYBRID EARTH ; PREDICTION ; ENERGY ; MODEL
WOS类目	Construction & Building Technology ; Energy & Fuels ; Engineering, Civil
WOS研究方向	Construction & Building Technology ; Energy & Fuels ; Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403490
推荐引用方式 GB/T 7714	Zhang, Dong,Zhang, Jingrui,Liu, Chunyang,et al. Performance measurement and configuration optimization based on orthogonal simulation method of earth-to-air heat exchange system in cold-arid climate[J],2024,308.
APA	Zhang, Dong,Zhang, Jingrui,Liu, Chunyang,Yan, Chengtao,Ji, Jinchao,&An, Zhoujian.(2024).Performance measurement and configuration optimization based on orthogonal simulation method of earth-to-air heat exchange system in cold-arid climate.ENERGY AND BUILDINGS,308.
MLA	Zhang, Dong,et al."Performance measurement and configuration optimization based on orthogonal simulation method of earth-to-air heat exchange system in cold-arid climate".ENERGY AND BUILDINGS 308(2024).