Design of high pressure processing vessel - COMSOL.com

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PROCESS DESCRIPTION• Liquids, slurries and other pumpable products have theadditional option of semi-continuous production• If water is used as the pressurizing medium, itscompressibility must be accounted for; water iscompressed by up to15 per cent of volume at pressuresabove 600 MPa.• Once the desired pressure is reached, the pump orpiston is stopped, the valves are closed and thepressure is maintained without further energy input.• After the required hold time has elapsed, the system isdepressurized, the vessel opened and the productunloaded.
Significance• Despite of many advantages, cost of highpressure processing is high, mainly due to costof HPP equipment.• Import from overseas.• This is an attempt to design an indigenoushigh pressure processing vessel which is heartof HPP equipment.
Page 1 and 2: Modeling of Pressure Profiles in aH
Page 3 and 4: Introduction• Conventional food s
Page 5: PROCESS DESCRIPTION• In a HP proc
Page 9 and 10: ASME Codes• The organization is k
Page 11 and 12: 2. Maximum Shear Stress Theory• Y
Page 13 and 14: Fig. 1 Hoop and radialstresses in c
Page 15 and 16: Design requirements• Operating pr
Page 17 and 18: Dimensions of cylindrical shellInsi
Page 19 and 20: COMSOL multiphysics• Three dimens
Page 21 and 22: Stress distribution in cylindrical
Page 23 and 24: Stress in Screwed cylinder arrangem
Page 25 and 26: Stress Profile - EmptyPressure Vess
Page 27 and 28: Pressure Vessel with polyethylene c
Page 29 and 30: Stress Profiles - Surface von Mises
Page 31 and 32: t=0 t=30s t=60st=90st=120s
Page 33 and 34: Conclusions• If the system was pe
Page 35 and 36: • Joe E. W. “Liquid pressure in

Design of high pressure processing vessel - COMSOL.com

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