Heat pumps are commonly used for residential space-heating and cooling. The combination of solar thermal and heat pump systems as a single solar-assisted heat pump (SAHP) system can significantly reduce residential energy consumption in Canada. As a part of Team Ontario’s efforts to develop a high performance house for the 2013 DOE Solar Decathlon Competition, an integrated mechanical system (IMS) consisting of a SAHP was investigated. The system is designed to provide domestic hot water, space-heating, space-cooling and dehumidification. The system included a cold and a hot thermal storage tank and a heat pump to move energy from the low temperature reservoir, to the hot. The solar thermal collectors supplies heat to the cold storage and operate at a higher efficiency due to the heat pump reducing the temperature of the collector working fluid. The combination of the heat pump and solar thermal collectors allows more heat to be harvested at a lower temperature, and then boosted to a suitable temperature for domestic use via the heat pump. The IMS and the building’s energy loads were modeled using the TRNSYS simulation software. A parametric study was conducted to optimize the control, sizing and configuration of the system. This paper provides an overview of the model and summarizes the results of the study. The simulation results suggested that the investigated system can achieve a free energy ratio of about 0.583 for a high performance house designed for the Ottawa climate.
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ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology
July 14–19, 2013
Minneapolis, Minnesota, USA
Conference Sponsors:
- Advanced Energy Systems Division
- Solar Energy Division
ISBN:
978-0-7918-5551-5
PROCEEDINGS PAPER
Modelling of an Indirect Solar-Assisted Heat Pump System for a High Performance Residential House
Jenny Chu
,
Jenny Chu
Carleton University, Ottawa, ON, Canada
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Cynthia A. Cruickshank
,
Cynthia A. Cruickshank
Carleton University, Ottawa, ON, Canada
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Wilkie Choi
,
Wilkie Choi
Queen’s University, Kingston, ON, Canada
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Stephen J. Harrison
Stephen J. Harrison
Queen’s University, Kingston, ON, Canada
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Jenny Chu
Carleton University, Ottawa, ON, Canada
Cynthia A. Cruickshank
Carleton University, Ottawa, ON, Canada
Wilkie Choi
Queen’s University, Kingston, ON, Canada
Stephen J. Harrison
Queen’s University, Kingston, ON, Canada
Paper No:
ES2013-18222, V001T01A011; 10 pages
Published Online:
December 22, 2013
Citation
Chu, J, Cruickshank, CA, Choi, W, & Harrison, SJ. "Modelling of an Indirect Solar-Assisted Heat Pump System for a High Performance Residential House." Proceedings of the ASME 2013 7th International Conference on Energy Sustainability collocated with the ASME 2013 Heat Transfer Summer Conference and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2013 7th International Conference on Energy Sustainability. Minneapolis, Minnesota, USA. July 14–19, 2013. V001T01A011. ASME. https://doi.org/10.1115/ES2013-18222
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