Reference number : GC-2017-Q2-00536, amendment number : , agreement type : G, recipient legal name : Johansen, Craig (University of Calgary), recipient country : CA, recipient province : nan, recipient city : Alberta, recipient postal code : nan, program name english : Engage Grants for Universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : This work aims to visualize the rapid decompression of supercritical carbon dioxide (CO2) in a channel. Further understanding of CO2 decompression is critical for the mitigation of long, ductile fractures associated with high-pressure CO2 pipelines. An existing shock tube facility in the lab will be modified to accommodate the proposed CO2 decompression tests. A high-speed schlieren photography system, using a Photron SA5 camera, will be used to photograph the event. Framing rates between 50-100 kHz are planned. High-speed piezoelectric sensors will be used to monitor gas pressure along the expansion tube upper wall surface. These sensors will provide key information on the decompression event. They will also be used to track expansion waves traveling upstream and help determine when the data acquisition period should be terminated. The experiments will provide key data needed to validate numerical models used to predict CO2 pipeline fracture events., program purpose french : This work aims to visualize the rapid decompression of supercritical carbon dioxide (CO2) in a channel. Further understanding of CO2 decompression is critical for the mitigation of long, ductile fractures associated with high-pressure CO2 pipelines. An existing shock tube facility in the lab will be modified to accommodate the proposed CO2 decompression tests. A high-speed schlieren photography system, using a Photron SA5 camera, will be used to photograph the event. Framing rates between 50-100 kHz are planned. High-speed piezoelectric sensors will be used to monitor gas pressure along the expansion tube upper wall surface. These sensors will provide key information on the decompression event. They will also be used to track expansion waves traveling upstream and help determine when the data acquisition period should be terminated. The experiments will provide key data needed to validate numerical models used to predict CO2 pipeline fracture events., agreement title english : Visualization of the decompression of supercritical carbon dioxide, agreement title french : Visualization of the decompression of supercritical carbon dioxide, agreement number : EGP, agreement value : 25000.0, agreement start date : 2017-08-23, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada