Abstract:
When a HVAC system is selected for the hygrothermal and air quality conditioning
of buildings, usually some uncertainty arises as how the energy diffusion/emission
system will actually behave in the rooms under study, as well as how
energy-efficient it will be in comparison with other alternative systems with similar
characteristics.
Despite there are many predictive methods for determining the energy balance in
generic rooms in order to size their air conditioning systems (HVAC), either by
measurements or nodal simulation, there is also a certain lack of knowledge as to
whether the use of the building’s energy is correct, as well as its transmission
efficiency in habitable venues considered as tridimensional spaces, with occupants,
furniture, equipment, and other heat sources that actively intervene in the system.
In order to predict the behaviour of these exchange systems, it is necessary to
resort to Computational Fluid Dynamics (CFD), previously validating the computer
tool by comparison with measurements in existing buildings