Natural convective heat transfer in a walled CCPC with PV cell

Li, W., Paul, M.C. , Sellami, N., Mallick, T.K. and Knox, A.R. (2017) Natural convective heat transfer in a walled CCPC with PV cell. Case Studies in Thermal Engineering, 10, pp. 499-516. (doi: 10.1016/j.csite.2017.10.009)

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The free convective heat transfer phenomenon in an isolated, walled CCPC with PV cell is studied experimentally at 1000 W/m2 irradiance and 28.5 °C ambient temperature as well as 0°, 10°, 20°, 30° and 40° incidences in indoor laboratory by using solar simulator. Then a series of numerical simulations are launched to estimate the CCPC natural heat transfer behaviour and optical performance based on steady heat transfer and laminar flow models with grey optical option. It is identified that the heat transfer and optical performances of CCPC are dependent on the incidence. Especially, the PV cell is subject to the highest temperature at an incidence less than 20°, and otherwise the top glass cover is with the highest temperature. The predicted temperatures, Nusselt numbers and heat loss ratios are consistent with the experimental observations basically, especially at the incidence less than 20° with (−10.1~+3) % error in temperature, (−35.6~+12.6) % in Nusselt number, and (−1.2~+20.5) % in CCPC wall heat loss ratio. The optical parameters predicted agree very well with the measurements. The heat loss from the CCPC walls accounts for nearly 60% of the total incoming solar irradiance and should be paid significant attention in the design of CCPC.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Knox, Professor Andrew and Li, Dr Wenguang and Paul, Professor Manosh
Authors: Li, W., Paul, M.C., Sellami, N., Mallick, T.K., and Knox, A.R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:Case Studies in Thermal Engineering
ISSN (Online):2214-157X
Published Online:20 October 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Case Studies in Thermal Engineering 10: 499-516
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
614241Scalable Solar Thermoelectrics and Photovaltaics (SUNTRAP)Andrew KnoxEngineering and Physical Sciences Research Council (EPSRC)EP/K022156/1ENG - ENGINEERING ELECTRONICS & NANO ENG