期刊
SENSORS
卷 16, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/s16030306
关键词
ground temperature probe; soil temperature; very low enthalpy geothermal energy; instrumentation system; ground thermal diffusivity
资金
- Spanish Ministry of Economy and Competitiveness [DPI2013-43870]
This paper presents a methodology and instrumentation system for the indirect measurement of the thermal diffusivity of a soil at a given depth from measuring its temperature at that depth. The development has been carried out considering its application to the design and sizing of very low enthalpy geothermal energy (VLEGE) systems, but it can has many other applications, for example in construction, agriculture or biology. The methodology is simple and inexpensive because it can take advantage of the prescriptive geotechnical drilling prior to the construction of a house or building, to take at the same time temperature measurements that will allow get the actual temperature and ground thermal diffusivity to the depth of interest. The methodology and developed system have been tested and used in the design of a VLEGE facility for a chalet with basement at the outskirts of Huelva (a city in the southwest of Spain). Experimental results validate the proposed approach.
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