Hyvolution in Paris – the hydrogen event for energy, industry and transport

On 01 and 02 February 2023, Hyvolution 2023 took place in Paris at the Expo Porte de Versailles, just 15 minutes from the Eiffel Tower. One of the exhibition highlights for all hydrogen industry players in Europe.

With over 300 exhibitors, we presented our GH2+, a custody transfer metering system for gaseous hydrogen, at the joint booth with Metra, Rheonik and Honeywell. The GH2+ serves as a flow measurement system for deliveries of H2 via hydrogen trailers. The system is characterized by its ease of use and integration.

Our RMS Hydrogen Reference Measurement System, which serves as a compact solution for metrological testing of hydrogen filling stations, also aroused much interest. Above all, the significantly faster execution, compared to the previous procedure, considerably reduces the service life of the system and thus the resulting costs.

We were able to make many exciting contacts at the trade fair and met interesting people.

Before the fair – TrigasFI GmbH CEO and Sales Director

TrigasDM Visit to Sono Motors

On 13.01.2023 a Tech Day took place at Sono Motors in Munich. The event of Sono Motors was well attended – about 600 interested people were expected and the halls were also really well filled.

We were able to inspect our installed flow meters live, talk to the measurement engineers at length and see the Sion with our own eyes. The solar bus concept was also particularly interesting. This is because Sono Motors is currently testing its solar technology for buses under real-life conditions in local public transport in Munich.

Trigas DM supplies highly accurate and reliable sensors for test benches and laboratories in the automotive sector, which deliver fast measured values, have no warm-up times and can be used universally for oils, fuels and cooling media. That is why TrigasDM is valued by well-known customers in the automotive industry as a supplier of high-quality flow measurement technologies.

Here you can find more information about automotive and mobile measurement technology.


Tech Day bei Sono Motors mit Durchflussmesser von Trigas

Visit us at Hyvolution 2023 in Paris

NEW! Discover our hydrogen measurement systems at Hyvolution 2023.

Do you see hydrogen as a promising energy carrier of the future and operate H2 delivery vehicles or H2 filling stations? If so, we can equip you with the necessary calibratable volume measurement systems. Visit us at booth 6E46 – we are looking forward to meeting you.

Control behavior of the water cooling of an exhaust gas recirculation system

Miniature flow turbines under extreme operating conditions

Even though the internal combustion engine is on the decline in view of the major changes in the automotive industry towards electromobility, research and development is continuing in the area of exhaust gas purification and efficiency (tightening of emission limits as part of the planned future Euro 7 exhaust gas standard).

Exhaust gas recirculation (EGR), is an important process in the reduction of pollutants in diesel and gasoline engines.




Today’s and future exhaust gas limits require cooled exhaust gas recirculation, which in brief works as follows:

Immediately downstream of the cylinders, i.e. the combustion chamber, the exhaust gases are diverted via the so-called EGR valve and fed back to the intake air. This allows less oxygen to enter the cylinder, which in turn lowers the combustion temperature in the cylinder.

This temperature reduction can reduce the amount of nitrogen oxides NOx by up to 70%, because the higher the temperature, the more nitrogen oxides are produced during fuel combustion.

In addition, for gasoline engines, this can also reduce fuel consumption and carbon dioxide emissions. To lower exhaust gas temperatures even further, EGR coolers are used nowadays, which again significantly reduce nitrogen oxides.

The complex control behavior of the EGR control valves, intake air control flaps and bypass flaps of the exhaust gas flow requires a high degree of accuracy in the control of the cooling water.

The miniature flow turbine from TrigasDM, which was developed specifically for this application and is just 30 mm long, is used here.

The measurement of the coolant mass flow and the coolant temperature takes place directly between the engine block and the EGR cooler.

The signal is digitized immediately after the sensor and sent directly via CAN bus, 0-10 volt, 4-20 mA to the subsequent acquisition software or data logger.

As can be seen in the exploded view, a standard injection-molded plastic part is replaced by the measuring turbine and the EGR cooler is remounted in its original position. This makes it possible to carry out a flow measurement on the EGR cooler despite the small installation space. The data obtained from the measurements is used directly in the further development of EGR control behavior and provides the test engineers with valuable information.



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Seminar Flow Measurement and Calibration 2023

At TrigasFI, we calibrate, adjust and program thousands of flowmeters every year. As a result, we have acquired a deep and exceptional knowledge of the characteristics of many flow measurement principles. We know how best to calibrate, install and operate them for the best possible accuracy and reliability. We are happy to share this knowledge with our customers at training courses, seminars and on-site consultations as part of our seminar “Flow Measurement and Calibration”.

Click here for more information.

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