Novel Experimental Device to Monitor the Ground Thermal Exchange in a Borehole Heat Exchanger
| Autor: | Arturo Farfán Martín, Ignacio Martín Nieto, Cristina Sáez Blázquez, Susana Lagüela, Diego González-Aguilera, Jesus Fernandez-Hernandez, Laura Piedelobo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Control and Optimization
020209 energy single-u heat exchanger Borehole Energy Engineering and Power Technology 02 engineering and technology 010502 geochemistry & geophysics Granular material 01 natural sciences lcsh:Technology law.invention Thermal conductivity law kd2 pro device Thermal Heat exchanger 0202 electrical engineering electronic engineering information engineering thermal conductivity Electrical and Electronic Engineering Engineering (miscellaneous) Geothermal gradient experimental geothermal device 0105 earth and related environmental sciences ground source heat pump systems Petroleum engineering Renewable Energy Sustainability and the Environment lcsh:T Electricity generation Environmental science Energy (miscellaneous) Heat pump |
| Zdroj: | Energies, Vol 13, Iss 5, p 1270 (2020) Energies Volume 13 Issue 5 Pages: 1270 |
| ISSN: | 1996-1073 |
| Popis: | Ground source heat pump (GSHP) systems are becoming popular in space heating and cooling applications. Despite this fact, in most countries, the role of this energy is not as important as it should be nowadays according to its capabilities for energy generation without CO2 emissions, mainly due to the lack of technical knowledge about GSHP performance. The analysis of the physical processes that take part in the geothermal exchanges is necessary to allow the optimal exploitation of the geothermal resources. For all the above, an experimental geothermal device was built in the laboratory to control the phenomena that take place in a borehole heat exchanger (BHE). A 1-m high single-U heat exchanger was inserted in the center of a polyethylene container which also included granular material (surrounding ground) and the grouting material. Temperature sensors were situated in different positions of the experimental setup. Physical processes are evaluated to finally validate the model. Numerous applications can be developed from the experimental BHE. In this research, the determination of the thermal conductivity of the material used as medium was carried out. Results of this parameter were also compared with the ones obtained from the use of the KD2 Pro device. |
| Databáze: | OpenAIRE |
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