Loughborough University
Browse
1-s2.0-S0378778823007703-main.pdf (17.23 MB)

Assessing heat transfer characteristics of building envelope deployed BIPV and resultant building energy consumption in a tropical climate

Download (17.23 MB)
journal contribution
posted on 2024-03-05, 13:10 authored by Hamza Jhumka, Siliang Yang, Chris GorseChris Gorse, Sara Wilkinson, Rebecca Yang, Bao-Jie He, Deo Prasad, Francesco Fiorito

Building-Integrated Photovoltaic (BIPV) is a viable technology towards increasing renewable energy production and achieving low carbon footprints for buildings. Mauritius, with a daily average of 5.6 kWh/m2 of solar radiation over 2350 h annually, has been targeting at achieving its low carbon goals by focusing on photovoltaic technology including the uptake of BIPV. However, BIPV has not been well researched in terms of its overall thermal impact especially overheating on the building envelope and the resultant energy performance for buildings for the tropical climatic condition in Mauritius. This research, by means of validated simulation modelling, adopted a novel approach of coupling thermal finite element analysis (FEA) with whole building dynamic simulations to assess the heat transfer characteristics of BIPV either on facades or roof and the resultant energy consumptions of a typical office building in Mauritius. The façade scenario had two options, namely BIPV curtain wall and BIPV double-skin façade (BIPV-DSF), while the roof scenario also had two options, namely uninsulated and insulated roof BIPV membranes. Results show that roof BIPV membrane options had a better thermal performance in reducing overheating for the building compared to the BIPV façade options, with a reduction in cooling load of 8% and 15% for the uninsulated and insulated BIPV membranes, respectively. In terms of energy performance, both BIPV façade options were not capable of reducing the energy consumption of the building, as the BIPV curtain wall resulted in 1.66% more net energy consumption on a yearly basis. This shows an ineffectiveness of using vertical BIPV glazing for typical office buildings in Mauritius. Although the BIPV-DSF achieved an annual net energy saving of 5.16% benefited from the BIPV energy production, it was not as good as the net savings of 160% and 172% from the respective uninsulated and insulated roof BIPV membrane options.

History

School

  • Architecture, Building and Civil Engineering

Published in

Energy and Buildings

Volume

298

Publisher

Elsevier

Version

  • VoR (Version of Record)

Rights holder

© The Author(s)

Publisher statement

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Acceptance date

2023-09-11

Publication date

2023-09-14

Copyright date

2023

ISSN

0378-7788

eISSN

1872-6178

Language

  • en

Depositor

Prof Chris Gorse. Deposit date: 4 March 2024

Article number

113540

Usage metrics

    Loughborough Publications

    Licence

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC