Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings

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This report presents a preliminary assessment of the technical feasibility of utilizing underground thermal energy storage (UTES) and electric-driven heat pumps (EDHPs) to enable flexible behind-the-meter electric demand of buildings while meeting their thermal demands in an energy-efficient manner. With a combined EDHP+UTES system, overproduced renewable power or the electricity generated at off-peak hours can be used to produce useful thermal energy to be stored in the UTES. The stored thermal energy is later utilized directly or through an EDHP to meet buildings? thermal demands during peak hours. Because UTES is underground, it can utilize geothermal energy by enabling geothermal heat pumps, which can meet thermal demands with higher efficiency than conventional space heating and cooling technologies. The EDHP+UTES system, therefore, not only shapes electric demand but also saves energy due to its higher efficiency.

Citation Formats

TY - DATA AB - This report presents a preliminary assessment of the technical feasibility of utilizing underground thermal energy storage (UTES) and electric-driven heat pumps (EDHPs) to enable flexible behind-the-meter electric demand of buildings while meeting their thermal demands in an energy-efficient manner. With a combined EDHP+UTES system, overproduced renewable power or the electricity generated at off-peak hours can be used to produce useful thermal energy to be stored in the UTES. The stored thermal energy is later utilized directly or through an EDHP to meet buildings? thermal demands during peak hours. Because UTES is underground, it can utilize geothermal energy by enabling geothermal heat pumps, which can meet thermal demands with higher efficiency than conventional space heating and cooling technologies. The EDHP+UTES system, therefore, not only shapes electric demand but also saves energy due to its higher efficiency. AU - Liu, Xiaobing A2 - Qu, Ming A3 - Shi, Liang A4 - Warner, Joseph DB - Geothermal Data Repository DP - Open EI | National Renewable Energy Laboratory DO - KW - geothermal KW - energy KW - Heat Pump KW - Thermal Energy Storage KW - Building KW - Electric-Driven heat pumps KW - EDHPs KW - underground thermal energy storage KW - flexible behind-the-meter electric KW - UTES KW - seedling project KW - Oak Ridge National Laboratory KW - ORNL KW - dual-purpose underground thermal battery KW - DPUTB KW - simulation KW - lab tested KW - numerical model KW - peak generation focus KW - natural convection modeling KW - conduction heat transfer KW - phase change modeling KW - case study LA - English DA - 2019/05/31 PY - 2019 PB - Oak Ridge National Laboratory T1 - Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings UR - https://gdr.openei.org/submissions/1175 ER -
Export Citation to RIS
Liu, Xiaobing, et al. Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings . Oak Ridge National Laboratory, 31 May, 2019, Geothermal Data Repository. https://gdr.openei.org/submissions/1175.
Liu, X., Qu, M., Shi, L., & Warner, J. (2019). Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings . [Data set]. Geothermal Data Repository. Oak Ridge National Laboratory. https://gdr.openei.org/submissions/1175
Liu, Xiaobing, Ming Qu, Liang Shi, and Joseph Warner. Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings . Oak Ridge National Laboratory, May, 31, 2019. Distributed by Geothermal Data Repository. https://gdr.openei.org/submissions/1175
@misc{GDR_Dataset_1175, title = {Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings }, author = {Liu, Xiaobing and Qu, Ming and Shi, Liang and Warner, Joseph}, abstractNote = {This report presents a preliminary assessment of the technical feasibility of utilizing underground thermal energy storage (UTES) and electric-driven heat pumps (EDHPs) to enable flexible behind-the-meter electric demand of buildings while meeting their thermal demands in an energy-efficient manner. With a combined EDHP+UTES system, overproduced renewable power or the electricity generated at off-peak hours can be used to produce useful thermal energy to be stored in the UTES. The stored thermal energy is later utilized directly or through an EDHP to meet buildings? thermal demands during peak hours. Because UTES is underground, it can utilize geothermal energy by enabling geothermal heat pumps, which can meet thermal demands with higher efficiency than conventional space heating and cooling technologies. The EDHP+UTES system, therefore, not only shapes electric demand but also saves energy due to its higher efficiency.}, url = {https://gdr.openei.org/submissions/1175}, year = {2019}, howpublished = {Geothermal Data Repository, Oak Ridge National Laboratory, https://gdr.openei.org/submissions/1175}, note = {Accessed: 2025-05-07} }

Details

Data from May 31, 2019

Last updated Sep 23, 2019

Submitted Sep 14, 2019

Organization

Oak Ridge National Laboratory

Contact

Xiaobing Liu

865.574.2593

Authors

Xiaobing Liu

Oak Ridge National Laboratory

Ming Qu

Purdue University

Liang Shi

Purdue University

Joseph Warner

University of Tennessee

DOE Project Details

Project Name A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings

Project Lead Arlene Anderson

Project Number FY18 AOP 2819

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