Heating system

The heating system of the building is designed as the combination of the following installations:

• Radiant floor warming.

• Solar thermal panels.

• Biomass boiler support.

• Hot air support for rooms of general use from photovoltaic panels installed in walls.

The installation of 30 solar thermal panels (70 m2 effective surface, approximately) will provide 56% of the energy demand of the building. A biomass boiler will work as energy support equipment. Besides, the air flow along the back side of the photovoltaic panels installed as a chimney on the South facade will serve as supplementary heating system in winter. On the other hand, the thermal energy obtained from the photovoltaic panels will be transferred to the surroundings, according to the principles of Trombe walls.

Thermal energy supply to the building will be made by radiant floor warming, which is currently considered to best approach the ideal heating profile, since it provides very high efficiency and maximum thermal comfort.

Figure 5 shows values for energy supply of photovoltaic panels.

EUROSUN 2008

1st International Congress on Heating, Cooling, and Buildings ■ 7th to 10th October, Lisbon — Portugal *

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Fig.5 Energy supplied by the solar thermal panels heating system

 

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