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Safety of Plant Layout by Risk Assessment

Moghaddasi, Mahboubeh | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49552 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Rashtchian, Davood
  7. Abstract:
  8. One of the most important stages to designing a process plant is layout of equipment in unit area. There are plenty of routine procedures to find out equipment arrangement and their separation distances based on process and cost criteria. One of this Procedures is the use of codes and standards. Although some studies have been carried out to enter safety parameters to conventional procedures, the problem complexity because of the number of involved equipment is still of concern. To clear these ambiguities, the new approach presented in this thesis is aimed at quantifying the effects of adjacent equipment on each other. In this way, fire radiation and explosion have been selected as the major hazard that any equipment can expose on the other items, and finally a new concept has been defined. This concept is layout risk that is summation of equipment risk in a unit.One of the most advantages of these new concepts is that they do not need a measure of risk. The layout risk is a comparative measure that is used for comparing different suggestions of layouts. One of the reasons of using risk concept is additive property of it. Possible consequences in a process unit have their own intensity and probibality in addition of diversity. All of these consequences and their probibality could be convert into risk and this risk is additive. In this thesis, risks of fire and explosion of each equipment are calculated by software PHAST Risk. Equipment risk is summation of fire and explosion risk. To determination of the best layout, for each proposed layout, layout risk is calculated and in the end the best layout has the minimum amount of risk
  9. Keywords:
  10. Safety ; Risk Assessment ; Equipment Risk ; Layout Risk ; Phast Software ; Plant Layout

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