Senior Consultant at the Danish Technological Institute

— and what’s needed to bring this technology to real industrial sites.
High-temperature heat pumps (HTHPs) with sink temperatures above 100 °C are key to decarbonizing industrial heat by upgrading waste heat using clean electricity. This presentation describes the development and laboratory testing of a 500 kW cascade HTHP using isobutane and isopentane, delivering sink temperatures of up to 170 °C. The results demonstrate high efficiency and operational flexibility. Required control and heat exchanger optimizations are identified, supporting the next steps toward robust industrial deployment.
Dr.-Ing. Nils Ahlbrink is a Senior Consultant at the Danish Technological Institute, specializing in refrigeration and high-temperature heat pump technology within the Energy and Climate division. He has extensive experience leading innovative renewable energy development projects, ranging from the design of solar thermal power plants and novel technologies for offshore wind farms to the development of high-temperature heat pumps, with a strong focus on advanced systems engineering and operational optimization.