CNG and LNG Vehicles in Convenience Transportation’s Shop
   Automotive and Light        Mobile Refrigeration    Truck Maintenance and        Maintenance and Repair    Repair    ...
 Hours of Operation    Staffed 24/7/365    40 co-workers Registered Inspection Facility with  DOT for MC306 and MC406 ...
Natural Gas:                In our shop we have 14 pieces ofHome, Work andVehicles                    equipment that opera...
“I’m not sure that I want natural gasvehicles in the shop” was not one ofthem.
   Understanding the Fuel and its Storage    Conditions.     High Pressure     Cryogenic   Train Our Co-workers   Int...
Met with Fire        Reviewing          Defined Our                   Reading Codes                                       ...
   Scope of NGV Work       Odorized CNG/LCNG minor repair       Odorized CNG/LCNG major repair       LNG minor repair ...
• Prior to Shop Entry Close the Manual1     Valves on the Storage Tanks                   Shop    • Drive Vehicle into Wor...
• Prior to Shop Entry – Defuel1     the Vehicle and Render it Inert      Shop    • Issue a Shop Entry Permit         Modif...
LNG Able to hold approximately 100 liquid gallons of LNG  for temporary storage. Has a pressure builder to facilitate re...
• Pull Vehicle in      Work Bay                        Shop Modifications1                        • Methane Detection     ...
   Our procedures for working with NGVs has    been and will continue to be dynamic in    nature.   Today we are believe...
   Natural Gas Tank Installations   EPA Certified Automotive    Vehicle Conversion Installation   Basic NGV PM Maintena...
Kwik Trip's Maintenance Facility Safety - CNG and LNG
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Kwik Trip's Maintenance Facility Safety - CNG and LNG

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Presented by Carl Suhr, Kwik Trip, on October 23, 2012 at the 3rd Wisconsin Natural Gas for Transportation Roundtable.

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Kwik Trip's Maintenance Facility Safety - CNG and LNG

  1. 1. CNG and LNG Vehicles in Convenience Transportation’s Shop
  2. 2.  Automotive and Light  Mobile Refrigeration Truck Maintenance and Maintenance and Repair Repair  Insulated Trailer Medium Duty Diesel Maintenance and Repair Maintenance and Repair  Trailer Mounted Propane Heavy Duty Diesel Racks Maintenance and Repair  Bulk CO2 Vessels Heavy Duty Equipment  9700 Gallon Petroleum Maintenance and Repair Transport Trailers
  3. 3.  Hours of Operation  Staffed 24/7/365  40 co-workers Registered Inspection Facility with DOT for MC306 and MC406 Cargo Tanks  15 Registered Inspectors Perform all levels of work internally with the exception of Painting
  4. 4. Natural Gas: In our shop we have 14 pieces ofHome, Work andVehicles equipment that operate on natural gas.Natural Gas is all aroundus. At an early age weare all taught torecognize the rottenegg smell associatedwith natural gas.If you smell natural gasat home or at work youtake appropriate action.CNG and LCNG areodorized with the samechemical, mercaptan.
  5. 5. “I’m not sure that I want natural gasvehicles in the shop” was not one ofthem.
  6. 6.  Understanding the Fuel and its Storage Conditions.  High Pressure  Cryogenic Train Our Co-workers Integrate NGVs into the Shop Environment
  7. 7. Met with Fire Reviewing Defined Our Reading Codes Evaluate theDepartment Applicable Preferred (Necessary) Facility(pre-mature) Codes Work Process Develop the Once the decision was made to transition Work Plan & to Natural Gas Vehicles we began to train Define the a core group: 1 supervisor and 3 Plan for technicians. Facility Conditioning Throughout the process we have continued to work with co-workers. Training them on NG, NGV Storage Systems and Shop Guidelines. Meet with the AHJ
  8. 8.  Scope of NGV Work  Odorized CNG/LCNG minor repair  Odorized CNG/LCNG major repair  LNG minor repair  LNG major repair Vehicle Attendance  Shop is 24/7/365 ▪ In the event of an unscheduled closing of the facility ▪ vehicles will be defueled and rendered inert with nitrogen or simply removed from the shop.
  9. 9. • Prior to Shop Entry Close the Manual1 Valves on the Storage Tanks Shop • Drive Vehicle into Work Bay and Allow it Modifications2 to Run Out of Fuel. • Tag Out Vehicle Fuel Tanks3 • Identify the Area as a No Hot Work Zone NONE • Complete Repairs4 • Open Storage Tanks / Remove Signage • Remove Vehicle from Shop and Return to5 Service.
  10. 10. • Prior to Shop Entry – Defuel1 the Vehicle and Render it Inert Shop • Issue a Shop Entry Permit Modifications2 • Identify the Vehicle as Inert • Complete Repairs3 • Remove Unit from Shop NONE • Fuel and Return to Service4
  11. 11. LNG Able to hold approximately 100 liquid gallons of LNG for temporary storage. Has a pressure builder to facilitate return of the LNG to a vehicle. CNG All vehicles are spec’d with a de-fueling port. Currently utilize pressure equalization transfer.
  12. 12. • Pull Vehicle in Work Bay Shop Modifications1 • Methane Detection • Changed Heating Source and • Complete Work Ventilation System2 • Both are latched to Latched to Methane Detection • Remove from • Lowered the Garage Door Shop and Return Opener3 to Service • Additional Lighting
  13. 13.  Our procedures for working with NGVs has been and will continue to be dynamic in nature. Today we are believe that we have a solid platform to build on. Currently developing an annual training and certification program.
  14. 14.  Natural Gas Tank Installations EPA Certified Automotive Vehicle Conversion Installation Basic NGV PM Maintenance  Oil/Lube/Inspection  Spark Plug Replacement  Valve Adjustment Diagnostics Chassis Maintenance and Repairs

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