For ship transport of CO2, dry-ice formation can occur during load transfer and venting of CO2. In order to design and operate ship transportation, the conditions where dry ice could lead to issues like clogging of pipelines or valves need to be identified and avoided. FASafe will provide experimental data that are needed to validate and improve flow-assurance tools, and to provide input to risk assessment and best practice manuals.
FASafe includes a test section of diameter 2" and length 10 m, which is integrated to a tank of 1000 L from the ECCSEL DeFACTO facility for CO2 supply. The upstream conditions are designed as 7 to 15 bar and −49 °C to −28 °C. The minimum operating temperature of the test section is −80 °C. The facility is designed for the experiments of releasing CO2 from low and medium pressure to ambient pressure.
The test section is instrumented with pressure sensors, differential sensors, and thermocouples to detect different phenomena during CO2 release, like partially or fully blockage of a pipe by dry ice, and the location of the undesirable flow constriction. A small part of the test section, around 1 m of length, is designed as replaceable, to allow the tests of different pipeline geometries, types of valves and visualization of dry ice particle agglomeration. The large buffer tank allows long-duration experiments, and low pressure and temperature tests. Currently, we are not aware of any installation at a similar scale and testing conditions.
Located right next to the DeFACTO and Depress facility in the thermal laboratories of NTNU/SINTEF with its available infrastructures and services and directly adjacent to the offices of leading scientists in the field of SINTEF and NTNU.
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