Gas: fired heating plant management

In order to define a global control strategy leading to a more rational use of energy, the CSTB, in collaboration with Gaz de France (GAR), has carried out a large study on gasflred heating plants, taking into account three types of heating and ventilation systems. The first investigated system is a hot water radiator coupled with a single-flux ventilation. The second system of interest combines a double-flux ventilation with standard hot water radiators. Finally, the last one uses an upgraded double-flux ventilation ductwork to provide a central aeraulic heating, a terminal heat exchanger ensuring a perfect local temperature adjustment. The required models were developed (or adapted), validated and finally implemented on the ASTEC 3 numerical simulator. Furthermore, all of the models were documented in a standardized way (PROFORMA form). This paper intends to focus on the studies which were undertaken enabling, by simulation, to test the sensitivity in both energy and economic terms of: Terminal heating equipment sizing, Boiler sizing, boiler-plant arrangement, boiler-plant management.