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ORC technology is currently relatively complex and expensive, and potential measures for cost reduction need to be identified and implemented. In addition, ORC systems which can efficiently use the available waste heat supply need to be developed.
Dürr Cyplan, Deutschland
Thomas Bürki GmbH (Berater), Schweiz
Calorex (Planer), Schweiz
Gruner Gruneko (Planer), Schweiz
Oecon (Planer), Schweiz
Amstein + Wathert Bern AG (Planer), Schweiz
Dr. Eicher & Pauli AG (Planer), Deutschland
Gunep GmbH (Planer), Schweiz
Triplex Energieplaner AG (Planer), Schweiz
ORC is a steam power plant process similar to that used in combined cycle power plants, with the main difference being the employed working fluid. Typically, organic mediums such as pentane, isobutane, or organic refrigerants such as R245fa are used. These substances have lower vaporization points compared to water, allowing vapor to be generated at relatively low temperatures and reasonable pressures. This vapor can then be used to generate electricity by means of an expander and a generator. ORC is thus well suited for the use of otherwise unusable residual heat at temperatures of 150 - 350°C.
There are currently 20 ORC plants in Switzerland (as of 2021).
Engine ORC Consortium, 6th Workshop, 2021, Frankfurt
ORC 2021, 6th International Seminar on ORC Power Systems, 11 – 13 October 2021, Munich
ORC 2019, 5th International Seminar on ORC Power Systems, 9 – 11 September 2019, Athens
Knowledge Center on Organic Rankine Cycle technology (KCORC)
Bundesamt für Energie: ProKilowatt