Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran
Geoexchange is one of the most energy-efficient, environmentally clean, and cost-effective space-conditioning systems available on the market. Seasonal storage of solar energy in geothermal boreholes is sharply interesting as a means of heating and cooling in buildings with different applications. I...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | International Journal of Thermofluids |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266620272300143X |
| _version_ | 1797401672000995328 |
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| author | Seyed Omid Daei Niaki Mohsen Pourfallah Arian Zare Ghadi |
| author_facet | Seyed Omid Daei Niaki Mohsen Pourfallah Arian Zare Ghadi |
| author_sort | Seyed Omid Daei Niaki |
| collection | DOAJ |
| description | Geoexchange is one of the most energy-efficient, environmentally clean, and cost-effective space-conditioning systems available on the market. Seasonal storage of solar energy in geothermal boreholes is sharply interesting as a means of heating and cooling in buildings with different applications. In this study, a closed-loop geo-exchange and solar thermal system with two different heat exchangers are examined in an energy-efficient house. TRNSYS, a simulation software tool, was used to model the yearly performance of the hybrid ground-source heat pump (GSHP) system. Two different types of ground heat exchangers, e.g., tube-in-tube and U-tube were employed. The mass flow rate through the heat exchangers and the solar collector was examined to choose the best scenario for each of them. The economic benefits of a gray water heat recovery system and solar collector were studied; the results show that 517 and 536 US Dollars/Year can be saved from each of them, respectively. System performance analysis was carried out in different cities with various climates in Iran. Moreover, a complete economic assessment was evaluated for all cases. The results show that for the same inlet water temperature to GSHP, the tube-in-tube heat exchanger can pass 45% more flow than the U-tube heat exchanger for the same size as the HP. Furthermore, in the absence of the solar collector, a 2.7 × 108 kJ increase was conducted in the auxiliary heater component yearly. Finally, four different climates were evaluated for the launching of the GSHP system with a solar thermal collector. The hot and dry climate with 27 °C fluid inlet to a heat pump, a total borehole depth of 220 m, and an initial cost of $ 25,047 was selected as the most appropriate weather conditions for launching the system in Iran. |
| first_indexed | 2024-03-09T02:13:27Z |
| format | Article |
| id | doaj.art-34c608a2bc4a49e1b856dfbd42340f04 |
| institution | Directory Open Access Journal |
| issn | 2666-2027 |
| language | English |
| last_indexed | 2024-03-09T02:13:27Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Thermofluids |
| spelling | doaj.art-34c608a2bc4a49e1b856dfbd42340f042023-12-07T05:30:43ZengElsevierInternational Journal of Thermofluids2666-20272023-11-0120100427Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of IranSeyed Omid Daei Niaki0Mohsen Pourfallah1Arian Zare Ghadi2Department of Mechanical Engineering, Mazandaran University of Science and Technology, Babol, Iran; Corresponding author.Department of Mechanical Engineering, Mazandaran University of Science and Technology, Babol, Iran; CNR-ITAE – Institute of Advanced Energy Technologies ‘‘Nicola Giordano’’, Messina, ItalyGraduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology, 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of KoreaGeoexchange is one of the most energy-efficient, environmentally clean, and cost-effective space-conditioning systems available on the market. Seasonal storage of solar energy in geothermal boreholes is sharply interesting as a means of heating and cooling in buildings with different applications. In this study, a closed-loop geo-exchange and solar thermal system with two different heat exchangers are examined in an energy-efficient house. TRNSYS, a simulation software tool, was used to model the yearly performance of the hybrid ground-source heat pump (GSHP) system. Two different types of ground heat exchangers, e.g., tube-in-tube and U-tube were employed. The mass flow rate through the heat exchangers and the solar collector was examined to choose the best scenario for each of them. The economic benefits of a gray water heat recovery system and solar collector were studied; the results show that 517 and 536 US Dollars/Year can be saved from each of them, respectively. System performance analysis was carried out in different cities with various climates in Iran. Moreover, a complete economic assessment was evaluated for all cases. The results show that for the same inlet water temperature to GSHP, the tube-in-tube heat exchanger can pass 45% more flow than the U-tube heat exchanger for the same size as the HP. Furthermore, in the absence of the solar collector, a 2.7 × 108 kJ increase was conducted in the auxiliary heater component yearly. Finally, four different climates were evaluated for the launching of the GSHP system with a solar thermal collector. The hot and dry climate with 27 °C fluid inlet to a heat pump, a total borehole depth of 220 m, and an initial cost of $ 25,047 was selected as the most appropriate weather conditions for launching the system in Iran.http://www.sciencedirect.com/science/article/pii/S266620272300143XGeothermal energyGSHPSolar collectorHVACGWHRTRNSYS |
| spellingShingle | Seyed Omid Daei Niaki Mohsen Pourfallah Arian Zare Ghadi Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran International Journal of Thermofluids Geothermal energy GSHP Solar collector HVAC GWHR TRNSYS |
| title | Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran |
| title_full | Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran |
| title_fullStr | Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran |
| title_full_unstemmed | Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran |
| title_short | Feasibility and investigation of residential HVAC system with combined ground source heat pump and solar thermal collectors in different climates of Iran |
| title_sort | feasibility and investigation of residential hvac system with combined ground source heat pump and solar thermal collectors in different climates of iran |
| topic | Geothermal energy GSHP Solar collector HVAC GWHR TRNSYS |
| url | http://www.sciencedirect.com/science/article/pii/S266620272300143X |
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