Cryogenic engineering company HINE AG has played a pivotal role in Endress+Hauser Flowtec AG’s latest project to test and optimise its liquefied natural gas (LNG) Coriolis mass flow meter.
The Switzerland-based business designed, built and operated a modular cryogenic test rig for the task, which recreated an LNG dispenser and was adapted to test the mass flow meter in a variety of configurations.
Endress+Hauser Flowtec AG developed the instrument for custody transfer metering applications in LNG dispensers for heavy duty truck fuelling.
Lars Neff, Process Engineer at HINE, explained, “The assembly of these dispensers and the fuelling process design differs between miscellaneous dispensers for heavy duty truck fuelling and, furthermore, there are variable boundary conditions regarding vehicle tank pressure during operation.”
“For that reason, Endress+Hauser Flowtec AG was looking for a test stand with the ability to adjust as many of the influencing system parameters as possible whilst keeping the highest grade of repeatability. Based on those requirements, HINE was assigned with the design and manufacturing of the cryogenic test stand,” Neff clarified.
Operation of the test rig was performed at PanGas’ main site in Dagmersellen, Switzerland. PanGas, which is the Swiss subsidiary of the Gas Division of The Linde Group, supplied liquid nitrogen (N2) as the testing fluid throughout the project, as well as storage tanks, cryogenic containers and site support.