Unutilized Heat in Industrial Processes, e.g. exhaust Gas, excess Steam and hot Liquids. Transfer of Waste Heat to ORC Modules. A heat exchanger for an ORC transfers heat from a hot source to a working fluid in an ORC system. It allows the working fluid to vaporize and drive a turbine, generating electricity. Heat exchangers are crucial for the efficiency and performance of ORC systems. Generation of clean Power from Waste Heat at low Cost.