Aluminium Solar Collectors for District Heating

The project will develop and demonstrate two types of solar collectors with aluminium absorbers. The solar

collectors will be delivered by the two largest Danish manufactures of solar collector plants for district

heating. The manufacturers will achieve a better product and Hydro Aluminium will get access to the solar

district heating market.

The solar collectors will be demonstrated in full scale combined with a hybrid heat pump at Løgumkloster

Fjernvarme.

The project consists of 4 work packages:

Work Package 1 includes optimising of the two aluminium solar collectors and detailed design of solar

collector circuits, where the solar collector field is expected to consist of 2 x 6000 m2 aluminium solar

collectors and 2 x 1000 m2 traditional solar collectors. The collector circuits will be connected in parallel

making it possible to compare the collector productions. Beside that WP 1 includes detailed design,

tender and contracts for all other parts of the demonstration plant including a hybrid heat pump.

In Work Package 2 a demonstration plant including 14,000 m2 solar collectors and a hybrid heat pump will

be implemented.

Work Package 3 includes measuring program and implementation of a real time control of solar heat

production and online alert for changes in liquid in the solar circuit.

Work Package 4 includes final report with a design manual for aluminium solar collector fields for district

heating and dissemination of the project results to district heating utilities and authorities in Denmark and

EU27.