Category:Passive and solar assisted cooling

Passive cooling for buildings is mostly relevant to hot climatic zones. The prime intent of passive cooling is to prevent heat (or reduce heat flux) from entering the building or remove heat once it has entered. These concepts use solar energy or other natural cooling sources (radiative cooling, evaporative cooling, natural ventilation, etc.). The applicability of these depends to a large extent on the prevailing climatic conditions, for instance, evaporative cooling is effective in hot and dry climates only. Passive cooling techniques maximize building envelope efficiency by minimizing heat gain from the external environment and by facilitating heat loss to the external environment. Some commonly used passive cooling concepts are: a) evaporative cooling, b) nocturnal radiation cooling, c) passive desiccant cooling, e) earth sheltering / berming, f) earth- cooling.