Organic Rankine Cycle (ORC) Electricity from low temperature waste heat

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.

SUPPLIERS OF ORC EQUIPMENT AND COMPONENTS

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.

ORC PLANTS IN SWITZERLAND

There are currently 20 ORC plants in Switzerland (as of 2021).

FURTHER INFORMATION

Konferenzteilnehmende in Horw

Swiss ORC Symposium

The Swiss ORC Symposium took place annually between 2014 and 2018 and covered topics and new findings on efficient total energy utilization. At the event, experts discussed current developments, opportunities and trends.

Events

organisations