Abstract
A novel thermal energy storage integrated heat pump system was proposed to reshape the electricity load profile of residential buildings while maintaining thermal comfort. High-fidelity computer simulations are needed for evaluating the feasibility of the proposed system. This study investigates the annual performance of the proposed system through Modelica-based system simulations. A rule-based control strategy was developed to shift the electric demand of a typical single-family house in Atlanta, GA from peak to off-peak hours to utilize the Time-of-Use electricity rate to lower the energy costs for conditioning the building. For comparison, a conventional air-source heat pump system serving the same building was also developed. Simulation results indicate that the proposed system is capable of shifting around 90% of the building's electricity consumption for meeting the thermal demand from peak to off-peak hours on a daily basis. In addition, the annual power consumption and operating cost for running the HVAC system can be reduced by 6% and 34%, respectively, compared with the conventional air-source heat pump.
| Original language | English |
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| Title of host publication | 2022 ASHRAE Winter Conference |
| Publisher | ASHRAE |
| Pages | 513-521 |
| Number of pages | 9 |
| ISBN (Electronic) | 9781955516068 |
| State | Published - 2022 |
| Event | 2022 ASHRAE Virtual Winter Conference - Virtual, Online Duration: Jan 29 2022 → Feb 2 2022 |
Publication series
| Name | ASHRAE Transactions |
|---|---|
| Volume | 128 |
| ISSN (Print) | 0001-2505 |
Conference
| Conference | 2022 ASHRAE Virtual Winter Conference |
|---|---|
| City | Virtual, Online |
| Period | 01/29/22 → 02/2/22 |
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, for her inputs to this study.