干旱区生态环境知识资源中心(Arid): 沙漠区岩土热响应测试分析及沙漠源热泵系统运行策略

Arid

	沙漠区岩土热响应测试分析及沙漠源热泵系统运行策略
其他题名	Analysis on thermal response test of soil in desert area and operation scheme of desert source heat pump system
	宋伟 1; 郑湍峰 1; 张华北 2; 陈翔燕 2; 刘诚 2
来源期刊	农业工程学报
ISSN	1002-6819
出版年	2018
卷号	34 期号:9 页码:204-209
中文摘要	采用地源热泵技术可充分开发浅层地热能资源以减少因昼夜温差大而对农作物造成的影响,因此,为探索地源热泵在沙漠地区发展的可行性,该文追踪宁夏沙漠地区某沙漠源热泵项目的施工与测试流程,为沙漠地区热泵工程的推广积累经验。同时,对当地的岩土热物性进行热响应测试,最终测得该地沙漠初始地温为16.52 ℃。根据线热源理论求得其平均导热系数为1.12 W/(m·℃),制冷模式地埋管换热量为40.94 W/m,供热模式地埋管换热量为25.28 W/m。结合沙漠地区的气候条件,通过与中国东部地区3个项目的工程数据进行对比分析,认为沙漠源热泵系统运行策略需因地制宜,提出一种适合在沙漠地区合理运行的复合储能式沙漠源热泵系统,为沙漠地区浅层地热能的有效利用提供借鉴。
英文摘要	The "Thirteenth Five-year Plan for Geothermal Energy Development and Utilization" sets forth the guidelines and targets for the development and utilization of geothermal energy, and that becomes the basis of Chinese geothermal energy development and utilization during the "13th Five-Year" period. Due to the impacts of geological conditions, the use of geothermal energy is limited. Light and heat are abundant in the desert, however, because of its harsh conditions, shallow geothermal energy has not been effectively utilized. At present, China has actively explored the development of modern and sci-tech agriculture in the desert region. The application of shallow geothermal energy provides a better opportunity for the development of desert agriculture, especially the greenhouse. Ground source heat pump technology as an important way to apply shallow geothermal energy in China has been widely used. Geothermal conductivity has a great influence on the determination of the number and depth of boreholes, thus it affects the initial investment of the system. At the same time, inaccuracy of geothermal thermal and physical parameters lead to mismatches between the designed system and the actual load, so that they cannot give full play to their energy-saving advantages. Therefore, determining the geothermal thermal properties of accurately is the basis for the design of ground source heat pump system. In this paper, a desert source heat pump project in Ningxia desert area was used to carry out geothermal thermal response test. There were large sandstorms and no stable water source in the test area. The testing process in this project was designed according to the unique geomorphology and climatic conditions of the desert area. The heat transfer coefficient of ground heat exchanger in this desert area was tested by analyzing the average geothermal coefficient. The testing data were as follow: The soil temperature was 16.52 ℃; The average thermal conductivity of the soil was 1.12 W/(m·℃) by using the theory of linear heat source. In the cooling mode, the ground heat transfer was 40.94 W/m; and the heat transfer of the ground heat exchanger in the heating mode was 25.28 W/m. By comparing with the data of the related tests in the eastern part of China and combining with the operation scheme of the climatic conditions analysis system in the desert area, the operation scheme considers adding heat source in winter to assist heating, and a hybrid energy storage desert source heat pump system suitable for summer operation in the desert area was proposed, which could provide a solution for the limited use of shallow geothermal energy in desert areas. The results can provide a reference for the thermal response experiment in the desert area and the application of desert source heat pump system.
中文关键词	热泵系统 ; 热能 ; 储能系统 ; 沙漠源热泵系统 ; 热响应试验
英文关键词	heat pump systems thermal energy energy storage system desert source heat pump system thermal response test
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENERGY FUELS
WOS研究方向	Energy & Fuels
CSCD记录号	CSCD:6251043
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237976
作者单位	1.北方工业大学土木工程学院, 北京 100144, 中国; 2.江苏盛世节能科技有限公司, 连云港, 江苏 222022, 中国
推荐引用方式 GB/T 7714	宋伟,郑湍峰,张华北,等. 沙漠区岩土热响应测试分析及沙漠源热泵系统运行策略[J],2018,34(9):204-209.
APA	宋伟,郑湍峰,张华北,陈翔燕,&刘诚.(2018).沙漠区岩土热响应测试分析及沙漠源热泵系统运行策略.农业工程学报,34(9),204-209.
MLA	宋伟,et al."沙漠区岩土热响应测试分析及沙漠源热泵系统运行策略".农业工程学报 34.9(2018):204-209.