Trombe A., Serres L.
Year:
1995
Bibliographic info:
Building Simulation, Madison, USA, 1995, p. 143-150

This study was carried out on a real site gymnasium situated in the center of France. The building is equipped with two remarkable energy saving systems; running together: a ventilated roof and an air-earth exchanger. 
Experimental and theoretical studies were done on these two energy saving systems and a sensitivity factor analysis was performed which is presented in this paper. This analysis studies several types of fresh air preheating, varying the heating control temperature of building. Main results show that the economy on fresh air preheating can differ with the system used, and indicate the reasons of lack of efficiency of some systems. 
Then, the authors model various possibilities, in order to optimise fresh air introduction in gymnasium. The combined influences on building global theoretical consumptions, of ventilation intermittency and climate are studied. It is shown that the optimisation of air introduction into the gymnasium has no influence on energy consumption of the building , for a rather cold climate. On the other hand, for a warmer climate, a significant econorny of energy can be obtained. In conclusion, this study points out the general interest of simulation for new building designs But it can be also used for existing buildings to give significant information about equipement weaknesses and, of course, for improvements to be made.