The European Green Deal states that "energy storage and carbon capture, storage and utilization” is one of the priority areas to reduce greenhouse gas emissions of 55 % by 2030 and to become carbon neutral by 2050.

The project has received funding from the European Partnership on Metrology, co-financed by European Union Horizon Europe Research and Innovation Programme and from the Participating States.

Report A1.3.3: Current state of the art of traceable liquid CO2 flow measurement and liquid CO2 primary standard requirements

The MetCCUS team created an overview of existing datasets and liquid CO2-flow facilities to investigate how different types of flow meters (e.g. Coriolis, ultrasonic) are calibrated with pure CO2 and CO2-rich mixtures at various flow rates, as well as the transferability to water calibrations. It was found that a small number of SI-traceable calibrations of flow meters with liquid CO2 at the small scale have been conducted. At large scale, there is still a lack of industrial liquid CO2 test and calibration facilities. 

Potential layouts of liquid, dense, and supercritical test facilities are also explored, both at small and large scale.  

The last two chapters study the estimation of test facility calibration uncertainty and the operational considerations for liquid CO2 conditions, as several CO2-specific safety issues may arise. 

Find the report below.

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