Research project

Slurry-HP – A feasibility study to use a super-cooling ice slurry heat pump for solar heating applications

The goal of the present project is to analyse the technical and economic feasibility of a solar-ice system based on a super-cooling slurry heat pump. The system should achieve higher electricity savings and overall system performance with a comparable return on investment with respect to state-of-the-art ground source heat pump and solar-ice solutions. The anticipated efficiency increase is based on the super-cooler heat exchanger which is always free of ice. The anticipated cost reduction is based on the use of very simple storage vessels that do not need build-in heat exchangers.


Slurry-HP is financed by the Swiss Federal Office of Energy (SFOE).

Final report (PDF)

Duration: 01.10.2016 - 31.07.2017