A Study of the Vegetal Effect on the Thermal Comfort of Outdoor Area in Hot Regions

Abstract

The present research is a study of the thermal effect of vegetation cover on outdoor thermal comfort is residential areas in Biskra city during the hot period. Through numerical simulations using different scenarios of vegetation cover type where main PMVs have determined, besides a user satisfaction survey during typical hot period, the study concludes that vegetation density and types reduces air temperatures and have a substantial effect on user thermal comfort. The study concludes by arriving at the thermal effect of each scenario on the hourly values of PMV for the user, where it reaches their perceived comfort area as determined by interrogation. The results showed that the vegetal massif cover that depends on trees with dense crowns had an important effect in reducing the air temperature compared to the vegetated flat cover (using climbing plants), and it also had an effective impact in lowering the hourly values of PMV.