Annual Report 2010 (4.1 MB) - Danish Technological Institute

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As part of a broad professional forum, we have tested some ideas and verified that the concept of combining the domestic ventilation pump and the mini heat pump is feasible. Managing Director of Nilan A/S Torben Andersen >
Cases > Energy and Climate Page > 35 Case 15 New mini heat pump to heat the lowenergy houses of the future In cooperation with Danfoss Compressors Holding A/S, Cowi A/S, Nilan A/S and Grundfos A/S, the Danish Technological Institute had a successful 2010 developing and testing prototypes of a new mini heat pump suitable for the low-energy houses of the future. The participants tested the new type of mini heat pumps in combination with a domestic ventilation pump in the Danish Technological Institute’s energy-neutral construction EnergyFlexHouse in Taastrup during the 2009 and 2010 heating seasons. Three prototypes of the mini heat pump with a thermal capacity of approx. 2.1 kW have been produced. The prototypes are of the fluid-water type, i.e. the ground-heat type, and are based on a new compressor from Danfoss Compressors Holding A/S with speed control. The compressor delivers a thermal efficiency of approx. 1.0 kW to 2.1 kW. – We’ve achieved good efficiencies for the prototypes in the lab, especially considering that these are small heat pumps, explains Senior Consultant Per Henrik Pedersen from the Danish Technological Institute. He is in charge of the project, which has received funding from the Energy Technology Development and Demonstration Programme under the Danish Energy Agency. He assesses that the double mini heat pump is highly suitable for low-energy houses because it can generate hot domestic water by using the energy of the exhaust air from the ventilation system while also providing homes with warmth from ground heat. Nilan A/S is far ahead In parallel with this project, Nilan A/S has marketed a mini heat pump based on a conventional compressor from Danfoss Compressors Holding A/S. Nilan A/S has also been working on a larger model to be tested in EnergyFlexHouse during the 2010 and 2011 heating seasons. The combination of domestic ventilation heat pump and mini heat pump for floor heat is now also being marketed by Nilan A/S under the name ‘VP 18 Compact’, which has already been installed in a number of places around northern Europe. – We’ve gained a lot from the cooperation with the Danish Technological Institute, Danfoss Compressors Holding A/S, Cowi A/S and Grundfos A/S in this project. As part of a broad professional forum, we’ve tested some ideas and verified that the concept of combining the domestic ventilation pump and the mini heat pump is feasible. We expect that implementing this knowledge into our product expansion will boost sales nicely as we can expect a growing market for low-energy houses, says Managing Director of Nilan A/S, Torben Andersen.
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Taastrup Gregersensvej DK-2630 Taas
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Annual Report 2010 (4.1 MB) - Danish Technological Institute

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