Project - THERMCYC - Advanced thermodynamic cycles utilising low-temperature heat sources

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Project - THERMCYC - Advanced thermodynamic cycles utilising low-temperature heat sources

Advanced thermodynamic cycles utilising low-temperature heat sources

Startdate March 1st 2014. Ended in February 2019.

Purpose of project
We propose an interdisciplinary project aimed at devising innovative solutions for utilizing low-temperature heat sources at performances superior to state-of-the-art. We will address advancements in cycle and component design, and the use of novel working fluid mixtures. Both power, heat pump and cooling solutions will be considered for utilization of heat to cover the complete temperature range of low temperature sources. Our goal is to derive solutions that result in the savings of 15% of the energy consumption in Danish industry and shipping.

The innovations will not only improve the performance of existing technologies, they will also enable the utilization of low-temperature heat sources that are not used currently due to technical or economical infeasibility. Examples of possible, new applications include power production using small-scale solar and biomass, and geothermal heat sources. Moreover, high-efficient heat pumps will be developed. By providing the scientific basis needed for implementation of technologies utilizing low-temperature energy sources in Denmark, the project will contribute to the development of the future society with no consumption of fossil fuels and high shares of intermittent, renewable energy sources.

The project is divided into 6 phases:

  1. Project management
  2. Thermodynamic cycles
  3. Component Design
  4. Novel working fluids
  5. Experimental validation
  6. Implementation in industry


  • Danish Technological Institute
  • Technical University of Denmark
  • Viegand Maagøe A/S
  • AP Møller Mærsk
  • Danfoss
  • Arla
  • Alfa Laval Lund & Aalborg
  • Viking Heat Engines A/S
  • Technische Universität Müchen
  • Delft University of Technology
  • Man Diesel & Turbo

Funded by Styrelsen for Forskning og Innovation.