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Experimental investigation of the performance of a novel heat exchanger for solar hot water systems

Mondol, Jayanta Deb, Smyth, Mervyn and Zacharopoulos, Aggelos (2010) Experimental investigation of the performance of a novel heat exchanger for solar hot water systems. In: 11th World Renewable Energy Congress - WREC XI, Abu Dhabi, United Arab Emirates. Future Technologies Press, UK. 6 pp. [Conference contribution]

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URL: http://www.waterstones.com/waterstonesweb/products/a-a-m-+sayigh/wrec-xi3a+proceedings+of+11th+world+renewable+energy+congress/8174269/


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.

Item Type:Conference contribution (Paper)
Keywords:solar hot water, thermosyphon, solar collector, hot water storage
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute > Centre for Sustainable Technologies (CST)
Built Environment Research Institute
ID Code:19859
Deposited By: Dr Aggelos Zacharopoulos
Deposited On:07 Sep 2011 15:02
Last Modified:07 Sep 2011 15:02

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