SuPrHeat – Sustainable process heating with high-temperature heat pumps using natural re-frigerants

This project aims at developing and demonstrating three high-temperature heat pump technolo-gies with supply temperatures of up to 200 °C in demonstration racks, each with a heat supply capacity of 500 kW. The three systems use steam (water), hydrocarbons, and CO2 as working fluids, and combined they can cover the majority of applications at highest efficiencies. 

The project comprises various R&D activities on component and system level aiming at enabling operation at higher temperatures while maintaining highest thermodynamic efficiencies and low investment cost. All systems will undergo thorough testing with respect to function and perfor-mance including potential system and component modifications. Subsequently, the systems will be demonstrated at end-users with focus on analyzing the long-term performance. 

The developments are expected to provide the basis for electrifying a large share of the industrial process heat demand while increasing energy efficiency and reducing greenhouse gas emissions considerably. The results will be a key-technology for the Danish process industry in complying with the climate targets and place the Danish heat pump industry in a leading role.