مقایسه استاندارد جدید عایق حرارتی ترکیه TS 825، ISO 9164، EN 832 و مقررات آلمان

The effects of parameters and the building types on the energy demands are discussed in order to determine which parameter should be constant but which ones should be variable, to obtain more simple but accurate results, and to show to designers the parameters to be effectively controlled to decrease the energy requirements of the buildings. Independently of building type, the higher the area of component, the more influential is its U-value on the Qyear except ground. Ground has always the least effect on the Qyear. The effect of air change rate is high being almost similar for all types of buildings, however air change rate affects Qyear slightly less at the terraced office building than the others. With lower U-values of wall and window, the effects of window area and window directions on the Qyear of detached buildings are minimized. Terraced buildings are more sensitive to window area than the window directions. It is clear that the increase in south window area, for all types of buildings, has slightly more effect on Qyear than the increase in north, east and west window areas. The effects of r and g on the Qyear increase, when the heat loss decreases but solar gain increases. Therefore, for modern buildings, to accept these parameters as a constant is not fairly significant.