Gasoline Dispenser Hose Permeation Workshop

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Gasoline Dispenser Hose PermeationWorkshop

• November 13, 2003
• Monitoring and Laboratory Division
• Air Resources Board
• California Environmental Protection Agency

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Agenda

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

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(No Transcript)
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SIP Vapor Recovery Measures
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Gasoline Dispenser Hoses
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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

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Hose Permeation Emissions

• Assume 12 hoses/station
• Assume gasoline permeation at levels allowed by
  UL 330
• Estimate 3 tons/day statewide

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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
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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 _at_ 23 deg C per SAE J1527

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Low Permeation Fuel Hose Technology

• Entire hose made with low permeation material
• Low permeation barrier layer(s)

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Permeation Testing

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

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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

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Cost for Low Permeation Hoses

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

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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
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Cost-effectiveness for ARB Major Regulations
hose perm
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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

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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)

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Contact Information

• Cindy Castronovo
• ccastron_at_arb.ca.gov
• [phone]
• www.arb.ca.gov/vapor/vapor.htm