Hydrogen - volume measurement
Based on the wide range of natural gas volume measurement, RMG offers a selection of devices that are suitable for the measurement of natural gas with hydrogen admixtures and/or for pure hydrogen measurement.
Due to the complex and dynamic approval situation, we differentiate below between:
Depending on the hydrogen concentration, the device families may be approved for certain applications or "only" technically suitable. In these cases, the approval for custody transfer operation must be clarified on a case-by-case basis with the competent Weights and Measures Office.
The following device families are available:
Due to the complex and dynamic approval situation, we differentiate below between:
- the technical suitability. In this case, the devices have a corresponding ATEX approval; the materials are suitable for hydrogen, a corresponding leak test is carried out and the devices are expected to measure correctly.
- permissible applications. In this case, the devices are not only technically suitable in the above sense, but also have safety certificates, type approvals or manufacturer's declarations in accordance with PTB guideline TRG-19.
Depending on the hydrogen concentration, the device families may be approved for certain applications or "only" technically suitable. In these cases, the approval for custody transfer operation must be clarified on a case-by-case basis with the competent Weights and Measures Office.
The following device families are available:
USM-GT400 Series Ultrasonic Gas Meter
a) Hydrogen admixtures of up to 30 mol% are permissible in accordance with the clearance certificate. No restriction of performance compared to natural gas measurements.
b) Measurement of pure hydrogen: Special versions are currently undergoing field trials. Measurement ranges that are different from those for natural gas are to be expected.
b) Measurement of pure hydrogen: Special versions are currently undergoing field trials. Measurement ranges that are different from those for natural gas are to be expected.
Turbine meter TRZ03
a) Hydrogen admixtures of up to 30 mol% are permissible in accordance with the clearance certificate. No restriction of performance compared to natural gas measurements.
b) Technically suitable for measuring pure hydrogen: Measuring ranges changed compared to natural gas are to be expected (correction via Reynolds number required).
b) Technically suitable for measuring pure hydrogen: Measuring ranges changed compared to natural gas are to be expected (correction via Reynolds number required).
Volumeter TRZ03-K
a) Technically suitable for hydrogen admixtures up to 100 mol% without restriction of performance compared to natural gas measurements.
b) Technically suitable for measuring pure hydrogen: Compared to natural gas, changed measuring ranges are to be expected (correction via Reynolds number required).
b) Technically suitable for measuring pure hydrogen: Compared to natural gas, changed measuring ranges are to be expected (correction via Reynolds number required).
Turbine Meter TME400-VMF
a) Technically suitable for hydrogen admixtures up to 30 mol% without restriction of performance compared to natural gas measurements.
b) Technically suitable for measuring pure hydrogen: Compared to natural gas, changed measuring ranges are to be expected (correction via Reynolds number required).
b) Technically suitable for measuring pure hydrogen: Compared to natural gas, changed measuring ranges are to be expected (correction via Reynolds number required).
Turbine meter TME400-VCF
For hydrogen admixtures up to 10 mol% permissible without restriction of performance compared to natural gas measurements.
Volumeter TME400-VM
a) Technically suitable for hydrogen admixtures up to 100 mol% without restriction of performance compared to natural gas measurements.
b) Technically suitable for measuring pure hydrogen: Compared to natural gas, changed measuring ranges are to be expected (correction via Reynolds number required).
b) Technically suitable for measuring pure hydrogen: Compared to natural gas, changed measuring ranges are to be expected (correction via Reynolds number required).
Volumeter TME400-VC
For hydrogen admixtures up to 10 mol% permissible without restriction of performance compared to natural gas measurements.
If you have any questions:
Hydrogen - volume measurement
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