Abstract
The performance of a novel heat exchanger unit (‘Solasyphon’) developed for a solar hot water system was investigated under indoor and outdoor operating conditions. The retrofit ‘Solasyphon’ system is cost effective since it avoids the costly replacement of an existing single-coil hot water cylinder (HWC) with a twin-coil for solar hot water applications. The performance of the ‘Solasyphon’ system was compared with a traditional twin coil (‘coil’) system. The experimental set up consisted of proprietary solar collector, solar loop and interchangeable ‘coil’/’Solasyphon’ loop. A series of tests were conducted on both systems under a solar simulator within a controlled environment. Outdoor testing was carried out on both systems separately over summer/Autumn conditions in Northern Ireland. The results showed that the ‘Solasyphon’ system delivered water at consistently higher temperatures than the ‘coil’ system under a standard EU domestic water usage pattern and was more effective under a transient solar input particularly on intermittent or poor solar days.
Original language | English |
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Title of host publication | Unknown Host Publication |
Publisher | Future Technology Press |
Pages | 1744-1749 |
Number of pages | 6 |
ISBN (Print) | 978-0-9561516-1-2 |
Publication status | Published (in print/issue) - Sep 2010 |
Event | 11th World Renewable Energy Congress - WREC XI - Abu Dhabi, United Arab Emirates Duration: 1 Sep 2010 → … |
Conference
Conference | 11th World Renewable Energy Congress - WREC XI |
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Period | 1/09/10 → … |
Keywords
- solar hot water
- thermosyphon
- solar collector
- hot water storage