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Gasoline Dispenser Hose Permeation Workshop

Gasoline Dispenser Hose Permeation Workshop. November 13, 2003 Monitoring and Laboratory Division Air Resources Board California Environmental Protection Agency. Agenda. Introductions Background for Regulating Hose Permeation Baseline Emission Estimate Suggested Standard

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Gasoline Dispenser Hose Permeation Workshop

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  1. Gasoline Dispenser Hose PermeationWorkshop November 13, 2003 Monitoring and Laboratory Division Air Resources Board California Environmental Protection Agency

  2. Agenda • Introductions • Background for Regulating Hose Permeation • Baseline Emission Estimate • Suggested Standard • Testing Considerations • Cost-Effective Analysis • Schedule

  3. SIP Vapor Recovery Measures

  4. Gasoline Dispenser Hoses

  5. UL 330 - Standard for Safety for Hose and Hose Assemblies for Dispensing Flammable Liquids • Six day, 3150 cycle/day flex test • Refill hose every 24 hours • Divide volume of fuel added over the six days by volume of the hose • Allows 30% total loss

  6. Assume 12 hoses/station Assume gasoline permeation at levels allowed by UL 330 Estimate 3 tons/day statewide Hose Permeation Emissions

  7. SAE J1527 Marine Fuel Hoses • Applicable to hoses on pleasurecraft • 100 g/m2/day permeation limit up to 1.7 tons/day emission reductions statewide CARB

  8. Permeation Regulations • Portable fuel containers (CA) • 0.4 g/gal/day per TM 513 (SHED) • Small off-road engine fuel tanks (CA) • 2 g/m2/day per TP-901 • Nonroad Large SI Engines and Recreational Engines (Marine and Land) fuel hoses (USEPA) • 5 g/m2/day @ 23 deg C per SAE J1527

  9. Low Permeation Fuel Hose Technology • Entire hose made with low permeation material • Low permeation barrier layer(s)

  10. Permeation Testing • Test existing hoses to refine baseline emission estimate • Test prototype hoses to set best achievable permeation limit • Identify options for certification test

  11. Testing Considerations • Durability - aging and cycle tests • Pre-Conditioning • fill hose with fuel and wait for saturation • Type of fuel • Hose configuration • single or co-axial • Temperature • typical or worst-case? • Cost of test

  12. Cost for Low Permeation Hoses • USEPA estimates incremental cost of $1.00/ft for engine fuel hoses • For 12 foot coax hose => $24 • Used $50 increase/hose for initial cost estimate • Hoses today cost $100 - $200 (?)

  13. Cost-Effectiveness • Assume hose life of one year • Assume cost increase of $50 per hose • Total annual cost = $6,780,000 $6,780,000/yr 1 ton 1 yr 1.7 tons/day 2000 lb 365 days = $5.46/lb

  14. Cost-effectiveness for ARB Major Regulations hose perm

  15. Tentative Rulemaking Schedule • Feb 2004 - complete preliminary tests • Mar 2004 - post draft standard and TP • Apr 2004 - second workshop • Jun 2004 - finalize staff proposal • Aug 2004 - release staff proposal • Sept 2004 - Board hearing* * schedule may slip due to testing and/or other priorities, but expect Board hearing no later than December 2004

  16. Proposed Implementation Schedule • Dec 2004* - approved by Board • Sept 2005 - finalize rulemaking and begin certification • Jan 2007* - required for new installations • Jan 2011 - required for all facilities * commitment dates in revised SIP Settlement Agreement (June 2003)

  17. Contact Information Cindy Castronovo ccastron@arb.ca.gov (916) 322-8957 www.arb.ca.gov/vapor/vapor.htm

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