Numerical modeling of the intelligent heating systems for living space

Department of Hydraulics, Hydraulic machinery, and Environmental Engineering, Faculty of Power Engineering, University Politehnica of Bucharest, Splaiul Independentei 313, Sector 6, Bucharest, Romania

^* Corresponding author: vradul4@gmail.com

Abstract

Nowadays, the intelligent solution of heating and hot water supply in residential house has become a current domain in the domain of energy efficiency analysis. It is presented the mathematical model and some numerical simulations for intelligent heating systems, ventilation, and air conditioning into a building structured on two floors, with spaces with intermittent occupancy, between certain hours. The heating system was structured into a permanent correlation with the reference temperature and the hot water consumption, corresponding to the time-period spent by the inhabitants in the living rooms. The control algorithm is a combination of fuzzy systems, anticipation systems and conventional systems. The numerical modeling analyzes both periods, the inhabited and the holidays. As input data were considered the atmospheric conditions and solar radiation, house structure, as to obtain the output data, scheduled solution of heating the building. A solution of ceiling, estimation of windows behavior, internal and external walls is presented. The air temperature is regulated via a three-way valve commanded by an actuator, whose time constant is adjustable. The experimental validation of the obtained results was tested in a building system from the metropolitan area of the city.