Experimental characterisation of a flat panel integrated collector-storage solar water heater featuring a photovoltaic absorber and a planar liquid-vapour thermal diode

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Abstract

A flat panel Integrated Collector-Storage Solar Water Heater (ICSSWH) incorporating a photovoltaic-thermal (PVT) absorber and a Planar Liquid-Vapour Thermal Diode (PLVTD) was fabricated. Tests indicate zero temperature rise instantaneous thermal and electrical efficiencies of 60% and 9% respectively, dropping to 40% and 6% under nominal intended operating conditions (600 Wm-2 irradiance, 50°C storage tank, 20°C ambient temperature). Measured overall heat loss coefficient was 0.85 Wm-2K-1 and thermal diode conductances were typically 45 Wm-2K-1 during solar collection periods and 1.7 Wm-2K-1 during heat retention periods. The work demonstrates that ICSSWH, PVT and PLVTD concepts can be successfully combined to create a scalable flat panel solar collector suitable for integration within a multifunction building facade.
Original languageEnglish
Title of host publicationProceedings of 11th ISES EuroSun Conference
Subtitle of host publicationPalma (Mallorca), Spain from 11 to 14 October 2016
EditorsVictor Martinez, Jose Gonzalez
PublisherInternational Solar Energy Society
Number of pages12
ISBN (Print): 978-3-9814659-6-9
DOIs
Publication statusPublished - 14 Aug 2016

Keywords

  • Integrated-Collector-Storage
  • Solar Water Heater (ICSSWH)
  • Photovoltaic-Thermal (PV/T)
  • Building Integrated Solar Thermal (BIST
  • Building Integrated Photovoltaic (BIPV)
  • Thermal Diode

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    Pugsley, A., Mondol, J., Smyth, M., Zacharopoulos, A., & Di Mattia, L. (2016). Experimental characterisation of a flat panel integrated collector-storage solar water heater featuring a photovoltaic absorber and a planar liquid-vapour thermal diode. In V. Martinez, & J. Gonzalez (Eds.), Proceedings of 11th ISES EuroSun Conference: Palma (Mallorca), Spain from 11 to 14 October 2016 International Solar Energy Society. https://doi.org/10.18086/eurosun.2016.08.14