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        Experimental study of the influence of burst parameters on the initiation of CO2 BLEVE

        發布日期: 2019-12-10瀏覽次數:24215次

        文章題目:Experimental study of the influence of burst parameters on the initiation of CO2BLEVE

        作者:周軼,季學偉等

        期刊:International Journal of Greenhouse Gas ControlSCI期刊,影響因子3.231

        摘要:A small-scale experimental system was constructed to simulate the initiation of CO2BLEVE process in different phase state. Dynamic pressure parameters after disc burst were analyzed to supplement the influence rules of vent size and burst pressure to the intensity of CO2BLEVE. Comparisons between the supercritical phase state CO2and liquid CO2on the pressure parameters were made to reveal the phase state influence to the initiation of CO2BLEVE. The vent size of 8mm and 15mm were two critical parameters under different burst pressures. The changing of pressure became irregular when the vent size surpassed 8 mm, and the pressure rise value will never surpassed the pressure drop value when the vent size reached or surpassed 15 mm. The supercritical state CO2was unstable compared to the liquid state CO2. A more complex phase transition in the discharge process caused the pressure parameters changing became irregular; especially when the inner pressure reached 10 MPa and CO2became a supercritical statefluid. After burst, thefluid releasing form the vessel instantly and limited space was reserved for thefluid to swell in the vessel, causing the inner pressure can’t rebound in time, which eventually led the overpressure disappear.


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