Lagrangian simulation of deposition of CO gas-solid sudden expansion flow

2008, Volume 2, Issue 2

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Frontiers in Energy >> 2008, Volume 2, Issue 2 doi: 10.1007/s11708-008-0032-3

Lagrangian simulation of deposition of CO gas-solid sudden expansion flow

1.Power and Energy Department, Shanghai Jiao Tong University; 2.Technical University of Dresden

Available online: 2008-06-05

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Abstract

Freezing and blockage resulting from the deposition of solid CO formed because of sudden expansion of the downstream pipe during the release of CO through safety valves, will endanger the protected equipment. To overcome this problem, the characteristics of the CO gas-solid sudden expansion flow are studied by using the disperse Lagrangian model. A comparison of the calculated deposition of the solid CO with the experimental results shows that they are in reasonable agreement. The simulation results show that the size of the solid CO formed should not be in the range of 0.04–0.07 mm ( number 3.2–9.8). This can be achieved by using an appropriate flow cross section of the safety valve.

Keywords

comparison ; gas-solid ; downstream ; blockage ; Lagrangian

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