Czech aerospace and cryogenic equipment manufacturer, PBS, is developing a new turboexpander primarily designed for hydrogen applications.

With PBS’s cryogenic turboexpanders, pumps, and compressors being used mostly in helium applications, they can also be adjusted for hydrogen liquefiers and refrigerators working at low gas or liquid temperatures ranging from 4 K to 150 K.

The new turboexpander, known as CTE 300, will have cooling power of up to 100 kW and maximum inlet pressure of over 5 MPa.

Ensuring that excess energy is reused, all outlet energy will be recycled and transformed to electricity via a configurated generator or used as an energy source for a compressor.

Of the new technology, Serge Claudet, Energy Coordinator at CERN, claimed, “We operate up to four units each with three cold compressors with PBS wheels, and since 2008 for the LHC accelerator.”

“Since the beginning, we have appreciated the great hydrodynamic efficiency of the PBS wheels and a rather high-pressure ratio that could be achieved.”

Being involved in cryogenics for over 35 years, the unique construction of aerodynamic bearings contributes to the reliability of turboexpanders and compressors, even when under the most demanding conditions.

PBS’s cryogenic department regularly cooperates with the world’s leading companies, including Linde, the European Organization for Nuclear Research CERN, and the Rossendorf Research Center.