Calibration Transfer for CO2 Flow Measurement

This technical paper discusses the calibration transfer of flow meters for measuring carbon dioxide (CO2) in dense phase conditions, particularly in the context of Carbon Capture, Utilisation and Storage (CCUS). The study outlines the experimental setup used to validate the transferability of calibration from water to CO2, including the impact of impurities on measurement accuracy. The research indicates that current calibration facilities lack ISO 17025 accreditation for dense phase CO2, leading to the necessity of calibrating meters in water. The paper details the methodology, including the use of various flow meters and conditions tested, and presents findings that suggest a promising correlation between water calibration and CO2 measurements. It emphasizes the need for further investigation into the effects of impurities on flow measurement accuracy, which is critical for ensuring compliance with regulatory requirements in CCUS applications. The results aim to enhance the understanding of flow measurement in complex fluid conditions.