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Fail-Safe Design by Outer Cover of High Pressure Vessel for Food Processing

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DOI: 10.4236/ojsst.2011.13009    3,856 Downloads   7,600 Views   Citations

ABSTRACT

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.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

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.

References

[1] Development of basic technologies available to Enhancing Value-Added to Food, http://www.nico.or.jp/ create/gaiyou/index.html
[2] H. B. Haron, Y. Mutoh, Y. Otsuka and Y. Miyashita, “Selection of Stress Relief Grooves On Pressure Vessels for Food Processing,” Proceedings of JSME Hokuriku Sinetsu Branch 48th General Conference and Lecture Meeting CD-ROM (No. 616) , 2011.
[3] M. G. Stewart and R. E. Melchers, “Probabilistic Risk Assessment of Engineering Systems,” Morikita Publishing Inc., Tokyo, 2003.

  
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