Computational study of an integrated collector storage solar water heater.

Garnier, Celine, Currie, John, Muneer, Tariq and Girard, Aymeric (2008) Computational study of an integrated collector storage solar water heater. In: EUROSUN 2008 - INTERNATIONAL CONFERENCE ON SOLAR HEATING, COOLING AND BUILDINGS, 7th-10th October 2008, Lisbon, Portugal.

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A simple low cost integrated collector storage solar water heater (ICS-SWH) which has the potential to substantially reduce domestic energy use was proposed for simulation. The
system takes the form of a rectangular-shape incorporating the solar collector and storage tank into a single unit. The incorporation of extended surface fins are a good way of enhancing the construction for an inexpensive SWH and to achieve an increase in efficiency of the system. The thermal performance of the systems is critically dependant on the convective heat transfer coefficient occurring on the waterside of the inclined absorber plate and fins. A Computational Fluid Dynamic (CFD) study was undertaken to model flow and heat transfer in the three-dimensional (3D) SWH geometry. A first analysis was undertaken for a four fins collector designed at Napier University, Scotland, in order to improve its performance. The 3D CFD analysis allowed the optimisation of fin spacing to improve the ICS-SWH performance to create a new ICS-SWH design. Global water temperature in the collector was found to increase without impeding the flow between the fins. A minor decrease in temperature gradient was observed but stratification remained.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: CFD Modelling; Solar Energy;
University Divisions/Research Centres: Edinburgh Napier University, Institute for Sustainable Construction
Dewey Decimal Subjects: 600 Technology > 620 Engineering > 621 Electronic & mechanical engineering > 621.4 Heat engines > 621.47 Solar-energy engineering
Library of Congress Subjects: T Technology > TD Environmental technology. Sanitary engineering
Item ID: 5264
Depositing User: Dr Celine Garnier
Date Deposited: 10 May 2012 11:26
Last Modified: 10 May 2012 11:26

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