Author(s)

Yuichi Otsuka, Jyunpei Fujii, Masaki Takato, Yoshiharu Mutoh

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This paper demonstrates the effectiveness of outer-cover of pressure vessel in order to prevent risk scenario by brittle fracture. The Fail-Safe design introducing the concept of a standby redundant system is applied to the high-pressure vessel so that the safety of the operator can be assured in case of the vessel fractures. Based on the limit state design (LSD) concept, a fracture mode is predicted as plastic collapse and brittle fracture. Dimensions of a cover are determined by considering failure modes of plastic collapse and brittle fracture. Failure experiment with pre-cracked vessel can clearly show the effectiveness of the proposed vessel for fail-safe design.

Food Processing, Pressure Vessel, Fail-Safe Design, Safety Engineering

Y. Otsuka, J. Fujii, M. Takato and Y. Mutoh, "Fail-Safe Design by Outer Cover of High Pressure Vessel for Food Processing," Open Journal of Safety Science and Technology, Vol. 1 No. 3, 2011, pp. 89-93. doi: 10.4236/ojsst.2011.13009.