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The First High-Precision Mass Flow Meter for Hydrogen Filling Stations Certified to International Standard OIM - Heinrichs Messtechnik GmbH - Kobold Instruments Sdn. Bhd.


Puchong, Malaysia, February 23, 2021 --(PR.com)-- An open road ahead for the fuel cell: The first high-precision mass flow meter for hydrogen filling stations certified to international standard OIML R 139 2018

On the road to climate-friendlier mobility, hydrogen is gaining importance as an energy source for fuel cells. However, fueling of hydrogen is more complex than fueling of gasoline and diesel. Unlike other gases, hydrogen heats up as it expands, causing pressure and temperature changes during fuelling that need to be precisely monitored. Therefore, Heinrichs Messtechnik GmbH has developed the TMU-W 004 mass flow meter, which ensures precise metering despite pressure and temperature fluctuations. The device is the first of its kind certified to international standard OIML R 139 2018 and thus approved for hydrogen filling stations. A robust, slender housing protects specially arranged sensors and measuring loops that use the Coriolis effect and enable very precise flow measurement. The attached transducer converts the sensor signals into a reading that can be used to further analyse the flow rate. At the same time the meter measures the temperature of the medium. The TMU-W 004 is suitable for high-pressure applications up to 1000 bar. This newly developed device is already in use at filling stations of the listed company Nel Hydrogen.

Hydrogen as a fuel is gaining ground in Germany, in part due to the stimulus packages passed by the government. Currently Germany has the most public hydrogen filling stations in Europe, according to Statista. Worldwide, Germany is in second place after Japan. “For passenger cars, fueling the hydrogen is typically done at 700 bar. This high pressure is necessary to generate the energy density needed for useful ranges,” explains Guido Thometzki, CEO of Heinrichs Messtechnik GmbH. “During this process the temperature must not exceed +85°C, since otherwise the tank lining can be compromised.” Since the tank expands and heats up during filling, the hydrogen is cooled before it gets to the tank. This high-pressure environment combined with the small size of the hydrogen molecule makes special demands on the accuracy of flow monitoring.

Therefore, Heinrichs Messtechnik GmbH optimized its proven Coriolis Mass Flow Meter for such high-pressure applications, and now offers the TMU-W 004, a version of the new TMU-W series specially designed for handling hydrogen. The meter ensures that during filling, the amount of hydrogen transferred to the vehicle tank is measured accurately. This enables correct billing of the amount filled, which is a prerequisite for fuelling at public hydrogen filling stations. It covers a measurement range of 0.133 kg/min H2 to 4 kg/min H2. Thanks to structure and fluid simulations performed during the development phase, it was possible to achieve the optimum arrangement and dimensions of all the mechanical and electromechanical components. As a result, the device is the world’s first and thus far the only flow meter to obtain certification to international standard OIML R 139 2018, which covers measurement systems for compressed gaseous fuels in vehicles. The listed Norwegian company Nel Hydrogen is already using the TMU-W 004 successfully at its filling stations.

For over a hundred years, Heinrichs Messtechnik GmbH, founded in 1911 in Düsseldorf, has developed and sold flow meters. From the beginning, one of its core markets was the chemical and petrochemical industry, and so since the '60s the company has pushed the development of all-metal float-type flow meters. In the mid-1980s, Heinrichs was the first European company to build a mass flow meter using the Coriolis effect, and in the years that followed steadily expanded its Coriolis instrument line. Today the company has customers in many industries, including chemicals oil/gas, energy, and plant and mechanical engineering. In 2008, Heinrichs became part of the Kobold Group, giving it an extensive sales network thanks to the Group’s international subsidiaries. Heinrichs develops and manufactures all of its products in-house at its headquarters in Cologne, which currently employs 60 people.

For further info:
Heinrichs Messtechnik GmbH - https://www.heinrichs.eu/index.php?id=38&L=1&tt_products%5BbackPID%5D=39&tt_products%5Bproduct%5D=143&cHash=28442f0f906662ffa26581940cbbb131

Kobold Instruments Sdn. Bhd. - https://www.kobold.com/Coriolis-Mass-Flowmeter-for-Hydrogen-TMU-W
Contact Information
Kobold Instruments Sdn. Bhd.
Venkat Ramani
+60 (0)3 8065 5355
Contact
https://www.kobold.com/en
https://www.heinrichs.eu/index.php?id=30&L=1

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