Geothermal Heating of Domestic Water: A New Generation of Geothermal Energy Units by Topology Optimization
Abstract Recovering the underground thermal energy from deep soil to the ground surface efficiently is a serious challenge in harvesting geothermal energy resources. In this article, advanced topology optimization mathematical modeling is developed and applied to seek an innovative technological design of a geothermal heat exchanger unit that can efficiently heat the domestic water during the winter seasons. New designs are obtained as a function of soil depth down to 30 m. Results are presented and discussed by comparing the performance of the geothermal unit to that of a classical U-tube unit for various Reynolds numbers. Enhanced efficiency is observed at Re = 2000 with more than 82% improvement in terms of the mass-flowrate averaged temperature difference between the inlet and outlet of the geothermal unit.
Authors
- Chen Yang (ORCID: https://orcid.org/0000-0003-1555-1940)
- F. Roger (ORCID: https://orcid.org/0000-0003-3185-0625)
- Guanghui Wang (ORCID: https://orcid.org/0000-0002-8721-2246)
- Talib Dbouk (ORCID: https://orcid.org/0000-0002-9710-4978)
- Samer Ali (ORCID: https://orcid.org/0000-0001-5855-9139)
- Dingbiao Wang (ORCID: https://orcid.org/0000-0003-4822-7485)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université de Lille (FR)
- Zhengzhou University (CN)
- Henan University of Engineering (CN)
- Normandie Université (FR)
- Laboratoire de Mécanique et Génie Civil (FR)
- Centre Inria de l'Université de Lille (FR)
- Xinxiang University (CN)
- Université Lille Nord de France (FR)
- Université de Rouen Normandie (FR)
- Institut National des Sciences Appliquées Rouen Normandie (FR)
Publication Details
- Journal
- Journal of energy resources technology.
- Published
- 2025-07-16
- DOI
- https://doi.org/10.1115/1.4069185
- Citations
- 2
- Primary Topic
- Topology Optimization in Engineering
- Type
- article
- Field-Weighted Citation Impact
- 1.91