Recent Development and Research Priorities on Cool and Super Cool Materials to Mitigate Urban Heat Island

M. Santamouris and Geun Young Yun

Renewable Energy

161 (2020) 792e807
 

The urban heat island is increasing the temperature of cities up to 10 _C and has a very important impact on energy, environmental quality and health. Materials used in the building and urban fabric affect the urban thermal balance and contribute highly to urban overheating. The article presents the progress achieved on the design, development and implementation of mitigation materials presenting a low and very low surface temperature. The recent technological progress and developments concerning natural, light colour, IR reflective, PCM doped, thermochromic, fluorescent, photonic and plasmonic materials is presented.

Experimental results on the cooling capacity and the thermal performance of conventional and advanced materials are described in a comparative way. It is demonstrated that innovative materials can exhibit sub-ambient surface temperatures and contribute highly to mitigate urban overheating
 

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