Prof. Dr. Karl Klug has been working on the flow meter with his four-person team since 2015.

How much does hydrogen weigh?

The Institute of Mechanical Engineering at Westphalian University of Applied Sciences is currently working on a hydrometer to calibrate flow meters for hydrogen. Its calorific value makes hydrogen valuable, as it could be used to power cars—especially if the fuel can be produced from green electricity. This requires a flow meter so that filling stations can bill correctly, and it must be calibrated so that customers only pay for what they have actually pumped. The team led by Prof. Dr. Karl Klug aims for an accuracy of two percent. The project is scheduled to be completed later this year.

A detailed report can be found in issue 2018/02 of Trikon, the magazine of Westphalian University of Applied Sciences. The article by author Barbara Laaser is available for download here with the kind permission of WH: Hydrometer.