Analysis of Human Comfort using different Bioclimatic Indexes in Saghez City

Therefore, in this study, the conditions of human comfort in Saghez city were evaluated using various bioclimatic indices such as Mahani, Terjong, Becker and psychometric diagrams. For this purpose, atmospheric elements of temperature, precipitation, relative humidity, wind speed and sunshine on a monthly scale during the 40-year statistical period (1979-2018) of Saghez meteorological station were used to achieve reasonable results. In the night condition, the conditions are more acute, so that except for the nights of July and August, when the conditions are comfortable, in other months of the year, low temperatures and cold weather have caused thermal dissatisfaction. According to the Terjong index, during the day only the months of April and October are in a pleasant condition, and the rest of the months of the year are in a warm to cool condition, and none of the months of the year are in a pleasant condition during the night. According to the psychrometric diagram, the highest comfort hours in the study area are related to October and May. Also, the lowest level of thermal comfort is related to the months of winter and summer. In general, in Saghez city, 7.3% of the months of the year (636 hours) are in the comfort zone and 92.7% of the months are not in the comfort zone. In general, the results of the study and comparison of different indicators show that in the study area, favorable and unpleasant bioclimatic conditions prevail, so that in summer and winter, hot and very cold bioclimatic conditions and unpleasant conditions prevail, respectively. In general, the months of May, October and to some extent April, June and September can be introduced as the most suitable months in terms of bioclimatic comfort in Saghez city based on the studied indicators.