Passive cooling application in the north of Morocco

According to the inter-professional union of the poultry farm sector in Morocco, the heat stress, during the last summer, has led to ones of heavy losses estimated of about ten million Euros at producers. In this paper the measures which could be used to reduce the fatal effect of heat stress phenomenon are presented. This is achieved by modeling and simulation of a typical poultry house in the north of Morocco. A case study was realized to show the influence of each parameter on the behaviour of the building. The most influential parameters are: ventilation shape, orientation, number of the occupants...etc. The evaporative cooling systems models were linked to thermal building software, TRNSYS, and the assessment of poultry house equipped with passive cooling systems will be presented. The simulations show that the heat stress phenomenon could be avoided. The experimental study of the poultry house equipped with a passive cooling system shows a decrease of temperature of the internal air from 5 to 9 degree centigrade, and an amelioration of quality of production, which is translated by an important decrease of mortality number and an increase of poultry weight.(Author)