Figure 4.8 Effect of Passive Design on energy consumption

and to provide healthy living environment for the occupants. All of the building design aspects which were discussed in Chapter 3 are a pre-requisite for achieving a passive building.

Further in the text we will have an overview of the three main passive design strategies such as:

 Passive heating system  Passive cooling system  Passive ventilation system

They use the natural occurring phenomena such as such the radiation, conduction and natural convection, not requiring additional energy or mechanical devices. The beneficial solar radiation is stored in the space for warming the interior of the building during the colder periods when it is needed and to reduce the heating demand. Also, strategies are used to protect the building from overheating in the warmer periods. It utilizes the local winds to regulate the indoor air quality, to cool the interior and take out excessive humidity in the building.

Figure 4.8Effect of Passive Design on energy consumption

We can also meet the term - Passive Solar Design which explicitly refers to the use of the sun’s energy for the heating and cooling of the buildings. It means that the solar radiation besides warming the interior it induces air movement which can be beneficial for the comfort.

Application of various strategies for passive heating, cooling and ventilation are shown below, which can also impact the daylight quality.