New heat pump and solar heating

The aim of the project is a full scale demonstration of a combination of solar heat and heat pump together with an existing decentralised natural gas fired CHP-plant. Rye Kraftvarmeværk wants to demonstrate a new developed heat pump using ammonium as refrigerant in their system because it will have a higher COP than the heat pump using CO_2 as refrigerant for high return temperatures (more than 40 deg. C} and because it is frequency regulated and thus will be able to contribute with regulations to the electricity system. The results of the project are expected to be: 1) Design of an economical and technical optimised heat pump for district heating production replacing boiler produced heat in a 'traditional CHP-system'. The heat pump uses ammonium as refrigerant and ground water as heat source. 2) Demonstration of the concept solar, heat pump(s) using ground water, accumulation tank and natural gas fired CHP in full scale where the heat pump(s) run in the 2000 hours with lowest electricity prices and most wind electricity. 3) Measured results from the heat pump performance and the system performance. 4) Experiences with economical optimisation of the concept in the electricity market. 5) Experiences with velocity and capacity of electricity regulation. 6) Development of a future concept that can be replicated on natural gas fired (also the smallest) CHP­plants. 7) Future production of the heat pump in Denmark