Danish participation in IEA-SHC Task 44: Systems using solar thermal energy in combination with heat pumps
The project is an international IEA – project. The IEA team shall document the methods within system combinations between solar heat plants and heat pumps, which are the most popular technologies at the time. Seen from a Danish perspective the project is very relevant, because of the seasonal storage related to big solar heat plants at the district heating companies and their increased focus on Denmark. Furthermore the heat pumps can be used in the winter on a seasonal storage and thereby increasing the amount of energy created in the solar heat systems.
The project has generated preliminary results within IEA SHC Task 44 on combined solar thermal and heat pump systems. The most important outcome is a register of common technical system configurations as well as preliminary measurement results from an experimental set up with an air to water heat pump combined with a solar collector. (Nilan VP18)
The experience so far indicates that system control and storage configuration are very important issues to investigate further.
The project started in the spring of 2010 and has primarily been collecting information regarding Danish products and installations within the combination of heat pumps and solar thermal. There have been several visits to the plant owners to gain practical operating experience. There have been five project meetings, as well as an international IEA meeting in Bolzano, Italy.
At a site visit to Nilan's the project team was informed in details about Nilan's products for combined VP solar thermal utilization, providing a good basis for further work in the project.
At DTU there has been built an experimental setup with a heat pump from Nilan and a set of solar panels from Hot water from the sun. A PhD student has been assigned to the project and has assisted to the monitoring program of troubleshooting setup. Initial experience shows that the management and design of the stock volume are two very important factors when solar heating and heat pumps must run together.
The Danish Working Group has joined 4-5 potential projects to provide data and experience to the IEA cooperation:
- Stenløse Syd
- Solprisme
- EnergyFlexHouse
- Bolig for livet
Key figures
Category
Participants
| Partner | Subsidy | Auto financing |
|---|---|---|
| Cenergia Energy Consultants | 0,19 mio. DKK | 0,05 mio. DKK |
| Danmarks Tekniske Universitet (DTU) | 0,23 mio. DKK | 0,03 mio. DKK |
| Ellehauge & Kildemoes v/Klaus Ellehauge | 0,18 mio. DKK | 0,05 mio. DKK |
| NILAN A/S | 0,05 mio. DKK | 0,13 mio. DKK |
| Teknologisk Institut | 0,16 mio. DKK | 0,09 mio. DKK |
| Varmt vand fra solen | 0,05 mio. DKK | 0,13 mio. DKK |
Contact
Teknologisk Institut. Energi og Klima
Gregersensvej 1
DK-2630 Taastrup
www.teknologisk.dk
Katic, Ivan , 72202000, ik@teknologisk.dk
Øvr. Partnere: Ellehauge & Kildemoes ApS; Danmarks Tekniske Universitet. Institut for Byggeri og Anlæg (DTU Byg); Cenergia Energy Consultants; Nilan A/S; Varmt vand fra solen
