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Redesigning fire suppression system for safety
Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
2014 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This degree project is divided into two subprojects. Both of the projects are executed for Fogmaker, a company that specialises in designing and installing fire suppression systems in engine compartments. These projects are executed according to product development methods.

The first subproject described in this report is about designing a handle for the transportation of a 35kg weighing fire extinguisher. The handle functions as a safety seal and as a grip that makes it easier and safer to lift the fire extinguisher. A casted zinc T-handle is the best solution based on cost and AHP (Analytic Hierarchy Process) analysis. An FMECA (Failure Mode Effect and Criticality Analysis) and a FEM (Finite Element Method) study have been performed to verify the design.

A zinc prototype of the safety handle has been manufactured and is ready for testing. It is expected that 10.000 handles will be produced every year once this prototype is approved by Fogmaker.

The second subproject concerns a connection hub placed on a pressurized bottle. In order to make the fire suppression system more reliable this component needs to be redesigned. An external company with the required expertise in hydraulic systems will develop the connection hub in cooperation with Fogmaker, based on the conceptual designs described in this report. An FMECA of the new connection hub concept proves this redesign increases the safety of the system.

The overlying subject of both of these projects is the safety of the fire suppression system. Thanks to the accomplishment of both project, the system has become safer and more reliable.

Place, publisher, year, edition, pages
2014. , 73 p.
Keyword [en]
fire suppression system, fire extinguisher, AHP analysis, FMECA, Finite element method
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:lnu:diva-36011OAI: oai:DiVA.org:lnu-36011DiVA: diva2:733391
Subject / course
Mechanical Engineering
Supervisors
Examiners
Available from: 2014-07-09 Created: 2014-07-09 Last updated: 2014-07-09Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
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