Heat-to-power (ORC)
The Organic Rankine Cycle (ORC) principle is used in heat-to-power solutions. Free heat is available, for example, from a compressor cooling, from exhaust gases and engine jacket cooling of gen sets, from biomass boilers, geothermal sources, or different industrial processes. ORC modules allow to increase electric power output in the range from 6 to 12%. There are water- and thermal oil-systems.
The low-temperature module converts 2300 kW heat from hot water 70-100 C into electric power into electric power up to 180 kW. Electric efficiency 8%.
The low-temperature module converts 1400 kW heat from hot water 70-100 °C into electric power into electric power up to 100 kW. Electric efficiency 8%.
The low-temperature module converts 640 kW heat from hot water 70-100 °C into electric power into electric power 40 kW. Electric efficiency 6,3%.
The high-temperature module converts exhaust gases heat into electric power. Thermal oil serves as a heat carrier. Efficiency 21%.