Abstract
The cooling tower, which discharges most of exhaust heat as latent heat, decreases sensible heat. So it is one of heat island measures. In this study, heat island mitigation effect by cooling tower is analyzed based on observation result of the temperature in the cooling tower. We indicate latent heat ratio of cooling tower as heat island mitigation effect. When the cooling tower operates forcibly and air-conditioning load is small, latent heat ratio is large. As a result, heat island mitigation effect becomes large.
