A Simulation Study of Thermal Impacts of Greenery on a PV Rooftop
Abstract
Greenery is usually used for better thermal insulation for rooftops. It also helps to reduce the ambient temperature, due to its evapotranspiration process. In the evapotranspiration process, solar radiation is absorbed by plants and used as energy to convert water into vapor without temperature changes. This energy transfer is known as latent heat. Onmura et al. (2001) reported that the ambient air temperature of a rooftop could be reduced by 10-30 °C due to the evaporative cooling effect.