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Using Fire Gel During Hotwork

Using Fire Gel During Hotwork. March 12, 2019. NSRP All Panel Meeting. DISTRIBUTION STATEMENT: Unlimited/Approved for Public Release. Background. Hot work is any operation causing enough heat to ignite combustible material Welding Arc Gouging Oxygen Acetylene Cutting Grinding

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Using Fire Gel During Hotwork

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  1. Using Fire Gel During Hotwork March 12, 2019 NSRP All Panel Meeting DISTRIBUTION STATEMENT: Unlimited/Approved for Public Release

  2. Background • Hot work is any operation causing enough heat to ignite combustible material • Welding • Arc Gouging • Oxygen Acetylene Cutting • Grinding • Various Other Operations • Hot work is the third leading source of fires at major industrial facilities1 • $39 million in property damage per year • Hot work fires are the leading cause of civilian fire-related injuries • Optimal prevention method is removal of all combustible material • Not practical in all shipboard environments • Mitigate risk with fire retardant product • Noncombustible screens • Fire resistant tarpaulins • Metal shields • 1. “Fires in Industrial and Manufacturing Properties” R. Campbell NFPA. March, 2018

  3. Background • Fire-retardant gels are in use by wildland firefighting industry • Quickly applied coating to structures to provide temporary fire protection • Provide thermal barrier • Locally displace oxygen on combustible surfaces • Proposal to use same gels as fire prevention tool in shipyards • Easier to apply than existing accepted Fire Prevention Products • Unknown effectiveness in shipyard fire prevention • Unknown effects in shipbuilding process Evaluate available gel products for use in shipbuilding and repair application

  4. Project Tasks

  5. Project Schedule

  6. Product List • USDA Fire service Qualified Product List • Health, Safety, Environment • Fire Tests • Determination of Optimum Mixing Ratio • Physical Properties • Material Effects • Product Stability • Pumpability • Effectivity • Visibility • Air Drop Characteristics • Operational Field Evaluation • Lot Acceptance and Quality Assurance

  7. Expanding Product List

  8. Product List

  9. Shipyard User Requirements • “The spec sheet” for optimum gel product for shipyard use. • Each requirement creates a row in the Criteria Matrix, which will drive the product’s relative score. •  Derived from surveys of hotwork performed in various stages of shipbuilding: retrofit, overhaul, new construction, platen, shop. 

  10. Shipyard User Requirements

  11. Shipyard User Requirements

  12. Criteria Matrix • Multi Criteria Decision Analysis • Driven by Shipyard User Requirements • Criteria categories broken down to sub criteria, all with relative ranking and weights • Used to calculate a total score for each product

  13. Next Steps • Find most applicable hotwork applications • Design tests of product effectiveness in those applications • Submit final report including down selected list of products

  14. Questions?

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