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The experimental evaluation and improvements of a novel thermal diode pre-heatsolar water heater under simulated solar conditions

Smyth, Mervyn, Quinlan, Patrick, Mondol, Jayanta Deb, Zacharopoulos, Aggelos, McLarnon, Dominic and Pugsley, Adrian (2017) The experimental evaluation and improvements of a novel thermal diode pre-heatsolar water heater under simulated solar conditions. Renewable Energy, NA . NA. [Journal article]

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DOI: 10.1016/j.renene.2017.12.083

Abstract

This paper presents the development through experimental performance characterisation of a pre-heat Integrated Collector Storage Solar Water Heater using a novel thermal diode operation to reduce ambient heat loss during non-collection periods. Using a solar simulator facility at Ulster University, the novel prototype pre-heat Mark IV unit was tested and evaluated. The concept has been designed and developed to be a sustainable pre-heat alternative to other types of solar water heating systems traditionally used in domestic hot water installations. The highest 6 hour collection efficiency was 36.17% under solar simulated conditions. The lowest system 'U' value was 0.98 Wm-2K-1 with no draw-off conditions. When the current prototype ICS units are compared with other conventional ICS systems, particularly in terms of thermal retention during non-collection periods, an improved performance is clearly demonstrated. The measured thermal losses were approximately 40% less than other similarly measured systems

Item Type:Journal article
Keywords:ICSSWH, pre-heat, solar simulation, thermal diode
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:39249
Deposited By: Dr Mervyn Smyth
Deposited On:23 Jan 2018 11:54
Last Modified:30 Dec 2018 23:23

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