Presented by: Sean Younger Fireproofing Product Line Manager Carboline Company This webinar will enable the participant to understand: Why is it necessary to fireproof.
Download ReportTranscript Presented by: Sean Younger Fireproofing Product Line Manager Carboline Company This webinar will enable the participant to understand: Why is it necessary to fireproof.
Presented by: Sean Younger Fireproofing Product Line Manager Carboline Company This webinar will enable the participant to understand: Why is it necessary to fireproof steel Different types of fire protection for offshore structures How Passive Fire Protection (PFP) works Advantages of epoxy intumescent PFP Offshore fire environments & testing requirements Certification requirements for offshore applications Factors that affect PFP thickness Service environments for epoxy PFP materials Applications methods & equipment Primer and topcoat requirements To protect assets To prevent structural failure Maintain path of egress Save lives Steel loses load carrying capacity as the core temperature increases Steel begins to deform at 427 °C (800 °F) PFP extends the time it takes to reach the failure point Limiting temperature is project specific 200°C - 600°C (392°F - 1112°F) Most projects require 400°C (752°F) limiting temperature Active Passive • Mechanical means of fire suppression that is activated during a fire • Deluge Systems • Sprinkler Systems • Halogen Extinguishers • Foam Systems • Coating or insulation applied to steel which insulates substrate during a fire • Concrete • Cementitious Fireproofing • Epoxy Intumescent • Epoxy Intumescent Castings • Insulative Fireproof Jacketing Deluge Systems Sprinkler Systems Foam Systems Halogen Gas Fire Suppression Concrete Cementitious Epoxy Intumescent Jacketing Casting Highly durable finish Does not reply on mechanical activation Can be field or shop applied Corrosion and fire protection in one system Explosion resistant Low maintenance Long service life When exposed to fire, intumesces or “swells” up to 10 times original thickness producing a heat blocking “char” Applied like a paint in multiple passes (5 mm/coat) Durable finish that can be topcoated Passive coating under normal conditions Reaction insulates steel for a given amount of time Jet Fire Hydrocarbon Pool Fire • • • • Sonic velocity, high pressure torching Simulates burning pressurized burning gas Erosive fire environment ISO 22899 (onshore / offshore) • Non-torching hydrocarbon fire • Simulates burning pool of hydrocarbon fuel • ISO 834 / BS-476 (offshore) 1315 2200 1204 2000 1093 1800 982 1600 871 1400 760 1200 649 1000 538 800 427 600 316 400 204 200 93 0 0 20 40 60 80 100 120 140 160 180 200 220 240 Time (minutes) • ISO 22899-1 (Jet Fire) • ISO 834 / BS 476 (Hydrocarbon Fire) • Typical Limiting Temperature 400°C / 752°F (Project Specific) Temp ( C ) Temp ( F ) 2400 Simulates pool of burning hydrocarbon fuel: -IS0 834 / BS 476 Part 20-21 Appendix D (offshore) -UL 1709 (onshore) Tested For: - I-Sections - Tubular Sections - Divisions(Bulkheads/Decks) Simulates pressurized burning gas: - IS0 22899-1 Tested For: - I-Sections - Tubular Sections - Divisions(Bulkheads/Decks) Additional material added to hydrocarbon thickness to withstand the erosive effects of a jet fire. Erosion factors are generated by comparing the results of the hydrocarbon and jet fire testing at specific steel size The jet fire erosion factor varies dependant on steel type and fire duration Simulated offshore atmospheric exposure Exposed to 25 cycles accelerated aging (ISO 20340) Corrosion / bond strength panels / Fire test panels Each 168 h (1 week) cycle includes: 3 Days 3 Days U VA 340 Bulb 1 Day ISO 7253 Salt Fog 5% NaCl at 35 C 4 hrs. UV at 60 C / 4 hrs. Condensing at 50 C 72 h of UV/condensing moisture (ISO 11507) 72 h of salt spray (ISO 7253) 24 h thermal shock at -20°C Thermal Shock at -20 C Pass/Fail Criteria: Corrosion creep < 3mm Adhesion > 3 Mpa Fire performance within 10% of non-aged sample Overblast testing Hose stream endurance Cryogenic exposure Physical property testing Choice of certification organization is dependant on project requirements Lloyd’s Register (LR) Det Norske Veritas (DNV) American Bureau of Shipping (ABS) Structural steel - I-sections (beams and columns) Tubular hollow sections - Rectangular hollow sections - Round hollow sections Divisions - Bulkheads - Decks - Firewalls, blast walls, accommodation modules *Thickness requirements will vary with member type. 1. Hydrocarbon Pool Fire - IS0 834 / BS 476 Part 20-21 Appendix D - 30 minute – 180 minute 2. Hydrocarbon Jet Fire - ISO 22899-1 - 15 minute – 120 minute 3. Hydrocarbon Jet Fire and Hydrocarbon Pool Fire Combination - Any combo of time intervals Efficiency of the material Steel size The more mass a steel section has, the less PFP thickness it requires The higher the critical limiting temperature, the less thickness is required The longer the fire durations require more thickness Jet fire ratings require jet fire erosion factor to be added to hydrocarbon thickness Offshore - Offshore platforms - FPSOs Onshore - Refineries - Petrochemical plants - LNG terminals - LPG storage facilities Plural component Batch mix Trowel Casting 45:1 king or 68:1 premier fitted with inductor plates Mounted on 5 gallon ram unit 3/4” outlet 50’(3/4”), 25’(1/2”) Use High Flow Guns Handles high viscosity coatings Front entry for less restriction Reverse-A-Clean Tips Epoxy PFP materials require mesh reinforcement for hydrocarbon and jet fire applications Typically installed at nominal midpoint Mesh placement and overlap distance depends on configuration of steel and fire exposure type. Typical overlaps: Hydrocarbon - 2” (50 mm) Jet Fire - 6” (150 mm) Only use manufacturer approved primers and topcoats All Epoxy PFP must be applied over compatible primers Primer system thickness range should be 3-5 mils (75-125 microns) per SSPCPA2 PFP systems are topcoated with epoxy or polyurethane finish coats When selecting an epoxy PFP, verify the following: Certification required / testing Fire rating Size and configuration of steel member Wide flange, hollow section, bulkhead, deck Primer and topcoat compatibility Application parameters Questions? Presented by: Sean Younger Fireproofing Product Line Manager Carboline Company