Paper Title
An Experimental Study on Low Exergy Building in Sudan

Abstract
Nowadays, the building sector plays a significance role in consumption of energy everywhere throughout the world. The residential sectors consume about 40% of the total energy consumption around the world. The vast majority of energy utilized in residential sectors is for the purposes of heating, ventilation and air conditioning (HVAC). High consumption of energy in buildings increases the green gas emissions which create impact in the environment and partake in the phenomena of global warming and climate change. Low Exergy (LowEx) systems are characterized as heating or cooling systems that allow the use of low esteemed energy conveyed by sustainable energy sources which use temperatures closer to the room temperature to provide cooling of the space. This paper aims to design and fabricate low exergy cooling system and provide a comfortable and healthy indoor environment in Sudan. In this paper, an experimental study was carried out by a combination between solar chimney and wind catcher as low exergy cooling system. The results obtained showed that the room temperature varied between (28-30○C). The outcomes indicated that the tested low exergy cooling system was quite effective in maintaining room temperature within the acceptable range for human, and also showed the practical possibility for employing solar and wind power to cool air in building and create a clean environment. Keywords - Low Exergy System, Exergy, Buildings, Thermal Comfort.