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.
Highlights
In the actual context of raising the prices of natural gas and raw materials, for instance, coal and wood, to reduce significantly the unnecessary energy consumption in buildings is a key objective for households, SMEs, and for large industrial consumers
A first step in achieving this objective is the development of the numerical simulations, dedicated to each practical application
It may be realized based on the necessary consumption for heating, air ventilation, and water consumption during inhabitation, and reducing their consumption during uninhabited/holidays periods
Summary
In the actual context of raising the prices of natural gas and raw materials, for instance, coal and wood, to reduce significantly the unnecessary energy consumption in buildings is a key objective for households, SMEs, and for large industrial consumers. A first step in achieving this objective is the development of the numerical simulations, dedicated to each practical application. It may be realized based on the necessary consumption for heating, air ventilation, and water consumption during inhabitation, and reducing their consumption during uninhabited/holidays periods. Software commonly used in the automation conception systems for heating does not take into account an adaptive structural modeling of the residential buildings and, of their equipment. It must be known the structure of the system needed to be modeled as well as systems of differential and algebraic equations describing the dynamic behavior of the equipment supplied by the manufacturer or their technical characteristics determined by experimental testing.
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