Sneak analysis applied to process systems

Cris Whetton

Research output: Book/ReportReport

Abstract

Traditional safety analyses, such as HAZOP, FMEA, FTA, and MORT, are less than effective at identifying hazards resulting from incorrect "flow" - whether this be flow of information, actions, electric current, or even the literal flow of process fluids. Sneak Analysis (SA) has existed since the mid nineteen-seventies as a means of identifying such conditions in electric circuits; in which area, it is usually known as Sneak Circuit Analysis (SCA). This paper extends the ideas of Sneak Circuit Analysis to a general method of Sneak Analysis applied to process plant. The methods of SA attempt to capitalise on previous work in the electrical field by first producing a pseudo-electrical analog of the process and then analysing the analog by the existing techniques of SCA, supplemented by some additional rules and clues specific to processes. The SA method is not intended to replace any existing method of safety analysis; instead, it is intended to supplement such techniques as HAZOP and FMEA by providing systematic procedures for the identification of a class of potential problems which are not well covered by any other method.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages94
ISBN (Print)951-38-4189-8
Publication statusPublished - 1992
MoE publication typeNot Eligible

Publication series

SeriesVTT Tiedotteita - Meddelanden - Research Notes
Number1376
ISSN1235-0605

Fingerprint

Electric network analysis
Electric currents
Hazards
Fluids
Networks (circuits)

Keywords

  • safety
  • safety engineering
  • hazards
  • flow
  • information
  • circuits
  • industrial plants
  • processing
  • regulations
  • methods
  • identifying
  • problem solving
  • SNEAK analysis
  • MORT
  • safety factor

Cite this

Whetton, C. (1992). Sneak analysis applied to process systems. Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Meddelanden - Research Notes, No. 1376
Whetton, Cris. / Sneak analysis applied to process systems. Espoo : VTT Technical Research Centre of Finland, 1992. 94 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1376).
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Whetton, C 1992, Sneak analysis applied to process systems. VTT Tiedotteita - Meddelanden - Research Notes, no. 1376, VTT Technical Research Centre of Finland, Espoo.

Sneak analysis applied to process systems. / Whetton, Cris.

Espoo : VTT Technical Research Centre of Finland, 1992. 94 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1376).

Research output: Book/ReportReport

TY - BOOK

T1 - Sneak analysis applied to process systems

AU - Whetton, Cris

PY - 1992

Y1 - 1992

N2 - Traditional safety analyses, such as HAZOP, FMEA, FTA, and MORT, are less than effective at identifying hazards resulting from incorrect "flow" - whether this be flow of information, actions, electric current, or even the literal flow of process fluids. Sneak Analysis (SA) has existed since the mid nineteen-seventies as a means of identifying such conditions in electric circuits; in which area, it is usually known as Sneak Circuit Analysis (SCA). This paper extends the ideas of Sneak Circuit Analysis to a general method of Sneak Analysis applied to process plant. The methods of SA attempt to capitalise on previous work in the electrical field by first producing a pseudo-electrical analog of the process and then analysing the analog by the existing techniques of SCA, supplemented by some additional rules and clues specific to processes. The SA method is not intended to replace any existing method of safety analysis; instead, it is intended to supplement such techniques as HAZOP and FMEA by providing systematic procedures for the identification of a class of potential problems which are not well covered by any other method.

AB - Traditional safety analyses, such as HAZOP, FMEA, FTA, and MORT, are less than effective at identifying hazards resulting from incorrect "flow" - whether this be flow of information, actions, electric current, or even the literal flow of process fluids. Sneak Analysis (SA) has existed since the mid nineteen-seventies as a means of identifying such conditions in electric circuits; in which area, it is usually known as Sneak Circuit Analysis (SCA). This paper extends the ideas of Sneak Circuit Analysis to a general method of Sneak Analysis applied to process plant. The methods of SA attempt to capitalise on previous work in the electrical field by first producing a pseudo-electrical analog of the process and then analysing the analog by the existing techniques of SCA, supplemented by some additional rules and clues specific to processes. The SA method is not intended to replace any existing method of safety analysis; instead, it is intended to supplement such techniques as HAZOP and FMEA by providing systematic procedures for the identification of a class of potential problems which are not well covered by any other method.

KW - safety

KW - safety engineering

KW - hazards

KW - flow

KW - information

KW - circuits

KW - industrial plants

KW - processing

KW - regulations

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KW - identifying

KW - problem solving

KW - SNEAK analysis

KW - MORT

KW - safety factor

M3 - Report

SN - 951-38-4189-8

T3 - VTT Tiedotteita - Meddelanden - Research Notes

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PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Whetton C. Sneak analysis applied to process systems. Espoo: VTT Technical Research Centre of Finland, 1992. 94 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1376).