Objective
This project will demonstrate the effectiveness of solar energy for space, DHW and process water heating in an industrial hall (4.850 m3). 72 air collectors (202 m2 useful area) using the Coppersun selective surface and serving as the roof structure are used as the heat source supplying 20 toe per year. Expected payback 12 years.
A further 20 TOE/yr will be saved by an insulated solar wall.
The great advantage of using solar energy for industrial purposes is that it may be used the whole year around. In this particular case the energy will be used for both space and water heating giving a certain flexibility in the choice of possible end uses without leading to an excessively complex and therefore expensive configuration.
The innovative aspects of this project lie in the use of solar energy for industrial uses and also the demonstration of a relatively new type of selective absorber.
The 72 air collectors will be integrated into the roof structure whilst a "solar wall" comprising an insulation layer, a glass sheet covering but not touching the insulation and a Coppersun sheet placed in the gap between the installation and glazing, will cover the surface of the building. combination with the solar collector, heat pumps will be installed so that heating requirements can be met in the Winter months - an auxiliary gas boiler will heat the solar pre-heated water
The Coppersun absorber is a semi-finished sheet covered with electro-deposited copper and used exclusively for low temperature applications exploiting solar energy. This absorber has the following characteristics:
- dendritic structure having a high absorption of short wave radiation and low emissivity of long wave radiation;
- thin cross-section allowing rapid conduction of heat across the sheet;
- highly reflective heating surface;
- reduced dependance between absorbance and angle of incidence in comparison with other absorbers (particularly important during the Winter). It also appears to have a high heat exchange coefficient at low air flow .
Topic(s)
Call for proposal
Data not availableFunding Scheme
DEM - Demonstration contractsCoordinator
21034 Cocquio Trevisago Treviso
Italy