Abstract
This study investigates the performance of a dual-source (air and ground) heat pump system integrated with novel thermal energy storage using a high-fidelity computer simulation model developed with the Modelica program. A rule-based control strategy was developed to shift the electric demand of a typical single-family house using the integrated system. For comparison, a conventional air-source heat pump system serving the same building was also simulated. Simulation results indicate that the integrated system can shift over 93% of the electricity consumption for space heating and space cooling from peak to off-peak period on a daily basis. In addition, the annual electricity consumption can be reduced by 22% compared with the conventional air source heat pump system. Furthermore, when a time-of-use tariff is used, the electricity cost is cut by 48% for meeting the same heating and cooling loads of the building.
Original language | English |
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Title of host publication | Using the Earth to Save the Earth - 2021 Geothermal Rising Conference, GRC 2021 |
Publisher | Geothermal Resources Council |
Pages | 1085-1096 |
Number of pages | 12 |
ISBN (Electronic) | 0934412278 |
State | Published - 2021 |
Event | 2021 Geothermal Rising Conference: Using the Earth to Save the Earth, GRC 2021 - San Diego, United States Duration: Oct 3 2021 → Oct 6 2021 |
Publication series
Name | Transactions - Geothermal Resources Council |
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Volume | 45 |
ISSN (Print) | 0193-5933 |
Conference
Conference | 2021 Geothermal Rising Conference: Using the Earth to Save the Earth, GRC 2021 |
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Country/Territory | United States |
City | San Diego |
Period | 10/3/21 → 10/6/21 |
Funding
This work was sponsored by the U. S. Department of Energy's Geothermal Technologies Office under Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC. The authors would also like to acknowledge Ms. Arlene Anderson, U.S. Department of Energy Geothermal Technologies Office, to guide this study.
Keywords
- Air-source heat pump
- Groud source heat pump
- Load shifting
- Thermal storage