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Bio-jaali: Passive building skin with mycelium for climate change adaptation to extreme heat

Lookup NU author(s): Dr Kumar Biswajit DebnathORCiD, Natalia PynirtziORCiD, Dr Jane Scott, Dr Colin DavieORCiD, Professor Ben BridgensORCiD



This is the final published version of a conference proceedings (inc. abstract) that has been published in its final definitive form by International Building Performance Simulation Association (IBPSA), 2023.

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Climate change induced global warming and frequent extreme heat events have become common recently, increasing the ownership and operation of active cooling, particularly in cities and megacities. To reduce the dependency on active cooling, in this study, we aimed to re-design ‘Jaali’— perforated screens made of bricks and sandstones to cool the incoming air inspired by historical building use— with bio-based materials such as mycelium. We hypothesised that ‘Bio-jaali’ would ventilate and reduce the indoor temperature reducing energy demand for cooling. For the climatic context, we selected the temperate climate of New Delhi. We used climatic data analysis and performance-based dynamic environmental simulations with Designbuilder and Energy Plus to evaluate the effect of Bio-jaali on the indoor operative temperature in a single-zone naturally ventilated indoor office space. The simulation results showed sandstone Jaali reduced the annual average indoor operative temperature by 5.2%, whereas Bio-jaali were able to provide a reduction of 3.0% compared to the base case. Furthermore, the seasonal analysis showed that Bio-jaali reduced the summer indoor operating temperature by decreasing heat gain from outdoor heat, particularly during daytime and increased indoor temperature during winter by reducing heat loss, demonstrating its potential for year-round usage.

Publication metadata

Author(s): Debnath KB, Pynirtzi N, Scott J, Davie C, Bridgens B

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Proceedings of Building Simulation 2023: 18th Conference of IBPSA

Year of Conference: 2023

Pages: 2002-2008

Online publication date: 06/09/2023

Acceptance date: 04/09/2023

Date deposited: 23/04/2024

ISSN: 2522-2708

Publisher: International Building Performance Simulation Association (IBPSA)


DOI: 10.26868/25222708.2023.1516

Library holdings: Search Newcastle University Library for this item

Series Title: Building Simulation Conference Proceedings

ISBN: 9781775052036