%0 Generic
%A Martynov, S
%A Zheng, W
%A Mahgerefteh, H
%C Les Ulis, France
%D 2018
%F discovery:10064608
%I MATEC Web of Conferences
%T Numerical study of the effect of heat transfer on solid phase formation during decompression of CO2 in pipelines
%U https://discovery.ucl.ac.uk/id/eprint/10064608/
%V 240
%X CO2 solid phase formation accompanying rapid decompression of high-pressure CO2  pipelines may lead to blockage of the flow and safety valves, presenting significant hazard for safe  operation of the high-pressure CO2 storage and transportation facilities. In this study, a homogeneous  equilibrium flow model, accounting for conjugate heat transfer between the flow and the pipe wall, is  applied to study the CO2 solid formation in a 50 mm internal diameter and 37 m long pipe for various  initial thermodynamic states of CO2 fluid and wide range of discharge orifice diameters. The results  show that the rate of CO2 solid formation in the pipe is limited by heat transfer at the pipe wall. The  predicted amounts of solid CO2 are discussed in the context of venting of CO2 pipelines.
%Z Copyright © The Authors, published by EDP Sciences, 2018.  This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.