Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling
An experimental study of a Solar Absorber and Nocturnal Radiator (SAANR) hybrid system used for simultaneous water heating and cooling in Gaborone, Botswana is presented. A SAANR hybrid system was designed and fabricated and the system consists of major components that include a 1.4 m2 SAANR hybrid...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-09-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844021020922 |
| _version_ | 1818733626125189120 |
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| author | Kago R. Rabasoma Aobakwe Kolobeng Kevin N. Nwaigwe |
| author_facet | Kago R. Rabasoma Aobakwe Kolobeng Kevin N. Nwaigwe |
| author_sort | Kago R. Rabasoma |
| collection | DOAJ |
| description | An experimental study of a Solar Absorber and Nocturnal Radiator (SAANR) hybrid system used for simultaneous water heating and cooling in Gaborone, Botswana is presented. A SAANR hybrid system was designed and fabricated and the system consists of major components that include a 1.4 m2 SAANR hybrid panel, 100 L hot and cool water storage tanks, chlorinated polyvinyl chloride (CPVC) plumbing and a 0.2778 kg/s circulation pump, all mounted on a steel frame that is inclined at 30 °C to maximize solar absorption and self-cleaning of the panel. Experiments carried out in December 2020 in Gaborone with water at an initial temperature of 26 °C produced 100 L of hot water at 60 °C and similarly 100 L of cool water at 23 °C, during the day and at night respectively. These results provide proof that the SAANR hybrid system could be used simultaneously for applications of domestic water heating and building envelope cooling in Botswana and similar climates. This technology can therefore be used instead of electric water heaters and air-conditioners and thus save energy. |
| first_indexed | 2024-12-17T23:52:27Z |
| format | Article |
| id | doaj.art-00130fc5eac8443993a99438d277c019 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-12-17T23:52:27Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-00130fc5eac8443993a99438d277c0192022-12-21T21:28:09ZengElsevierHeliyon2405-84402021-09-0179e07989Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and coolingKago R. Rabasoma0Aobakwe Kolobeng1Kevin N. Nwaigwe2Department of Mechanical Engineering, University of Botswana, Gaborone, BotswanaDepartment of Mechanical Engineering, University of Botswana, Gaborone, BotswanaCorresponding author.; Department of Mechanical Engineering, University of Botswana, Gaborone, BotswanaAn experimental study of a Solar Absorber and Nocturnal Radiator (SAANR) hybrid system used for simultaneous water heating and cooling in Gaborone, Botswana is presented. A SAANR hybrid system was designed and fabricated and the system consists of major components that include a 1.4 m2 SAANR hybrid panel, 100 L hot and cool water storage tanks, chlorinated polyvinyl chloride (CPVC) plumbing and a 0.2778 kg/s circulation pump, all mounted on a steel frame that is inclined at 30 °C to maximize solar absorption and self-cleaning of the panel. Experiments carried out in December 2020 in Gaborone with water at an initial temperature of 26 °C produced 100 L of hot water at 60 °C and similarly 100 L of cool water at 23 °C, during the day and at night respectively. These results provide proof that the SAANR hybrid system could be used simultaneously for applications of domestic water heating and building envelope cooling in Botswana and similar climates. This technology can therefore be used instead of electric water heaters and air-conditioners and thus save energy.http://www.sciencedirect.com/science/article/pii/S2405844021020922Nocturnal coolingDiurnal heatingHybridThermal performanceTemperature |
| spellingShingle | Kago R. Rabasoma Aobakwe Kolobeng Kevin N. Nwaigwe Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling Heliyon Nocturnal cooling Diurnal heating Hybrid Thermal performance Temperature |
| title | Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling |
| title_full | Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling |
| title_fullStr | Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling |
| title_full_unstemmed | Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling |
| title_short | Experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling |
| title_sort | experimental investigation of a solar absorber and nocturnal radiator hybrid system for simultaneous water heating and cooling |
| topic | Nocturnal cooling Diurnal heating Hybrid Thermal performance Temperature |
| url | http://www.sciencedirect.com/science/article/pii/S2405844021020922 |
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