Back in 1985, Cryostar made the first tests with liquid expanders. The first unit was build the same year, based on a “Pelton” type of wheel.
In 1986, a high efficiency liquid expander was build, based on a “Francis” wheel which has proven its efficiency, flexibility as well as its reliability.
Cryostar has now a full range of liquid expanders in operation with oil brake for small shaft powers or with generator brake for larger units.
Cryostar is having by far the most & best experience with these “money makers”.