Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings
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 -
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: 2025-05-28}
}
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
Keywords
geothermal, energy, Heat Pump, Thermal Energy Storage, Building, Electric-Driven heat pumps, EDHPs, underground thermal energy storage, flexible behind-the-meter electric, UTES, seedling project, Oak Ridge National Laboratory, ORNL, dual-purpose underground thermal battery, DPUTB, simulation, lab tested, numerical model, peak generation focus, natural convection modeling, conduction heat transfer, phase change modeling, case studyDOE 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
