Researchers from UNSW’s High Performance Architecture Research Group made novel findings in the battle against urban heat across 2024.
A study led by Anita Lawrence Chair in High-Performance Architecture Prof. Matt Santamouris, co-authored with A/Prof. Riccardo Paolini, and published in Nature Cities, detailed a multi-faceted strategy to cool Riyadh in Saudi Arabia by up to 4.5°C, combining highly reflective ‘super cool’ materials developed in the High-Performance Architecture Lab with irrigated greenery and energy retrofitting measures. This approach would also reduce the city’s cooling energy demand by 16 per cent. The study was a collaboration between UNSW, the University of Sydney, Lawrence Berkeley National Laboratory, the Royal Commission of Riyadh City, the University of Calcutta and the University of Athens.
A further study in Nature Cities, led by Dr Ansar Khan from the University of Calcutta and co-authored by Prof. Santamouris showed that city-wide installation of photovoltaic solar panels on roofs could raise temperatures during the daytime and lower them at night-time.
Finally, A/Prof. Lan Ding, Scientia Prof. Deo Prasad and Dr. William Craft have led the creation of a new national index to measure and then mitigate heat vulnerability in Australia. The National Heat Vulnerability Observatory Index (NaHVO) is a $700,000 project where UNSW have partnered with the NSW Department of Climate Change, Energy, the Environment and Water to develop national benchmark datasets and an innovative, robust and consistent methodology to measure heat vulnerability in Australian towns and cities.