Convenient outside and inside of buildinges base on penvardan and mahani indexes- case study ahvaz city

Ahwaz has been owned special bio-climate conditions that are based on locating in a special geography location, topography conditions and the atmosphere effective conditions on the area. Thus the air temperature in the coldest month of a year raises to 7/2 C and in the hottest month of a year sometimes is more than 46/3 C. So, the necessity of survey the climate conditions in relationship to the design of building for reducing these problems. So it uses the synoptic data and survey the bio – climate condition of Ahwaz and the below results have been achieved: For benefiting of the climate condition in the building, the condition of different kinds of building has been drawn on the diagram of the path of sun move according to the geographical width of Ahwaz. According to the facility scale of texture (Penvarden), it is recognized that if the wind below by the speed lower than 1.5 m/s and the shadow condition, the suitable conditions will be arise in this spaces. According to the monthly quadruplet tables of Ahwaz climate condition, it is recognized that the complex buildings are better which are include the compact texture. Moreover, for the distance between buildings, it must be determined based on the shadow. The direction of them must be north – south. It means longer axis of building must be east- west, it make possibility of beneficently of solar energy during warm term of year. The widow dimensions must be about 15- 25 % space of building visage. Building stuffs of external and internal walls and ceiling must be heavy and with the delay time more than 8 hours and the place for sleeping must be consider for 2 months of year.