Compressed Natural Gas Vehicles Ian Petersen Energy Density

Compressed Natural Gas Vehicles Ian Petersen

Energy Density Source: NYSERDA

Storage

CNG Storage Vessels 3 Distinct Categories § Plain Metal Cylinder § Fiber Wrapped Metal Cylinder § Composite

The CNGV Image: http: //www. cng. cz/miranda 2/export/sites/www. cng. cz/en/natural_gas/Natural_Gas_Vehicles/design_imgs/04_4_01 a_eng. jpg

Refueling § Slow Fill § Fuelmaker § 0. 46 gge/hr § Residential Natural Gas § Fast Fill § About the same fill rate as conventional gas stations § Few and far between

Fast Fill CNG Stations § 777 Stations § 150: 1 Image: http: //www. afdc. energy. gov/afdc/fuels/natural_gas_locations. html

Combustion and Emissions § 130 Octane rating § 12. 5: 1 § Emissions reduction based on Gasoline Engines § NOx by 30 -60% § CO by 90 -97% § CO 2 by 25% § NMHC 50 -75%

Safety § § § Relief Valves Shutoff Valves Tank Design Buoyancy of CNG LEL 5% UEL 15% Images: http: //www. sealancers. org/Articles/tank 3. jpg (top left), Powertech (top left, bottom)

Case Study: Honda Gx § § Engine: 113 hp 1. 8 L I-4 Fuel Efficiency: 24/36/28 Fuel Capacity: 8. 03 gge Range: 225 miles Image: http: //automobiles. honda. com/civic-gx/exterior-photos. aspx

Other CNGVs § Conversions Kits § Diesel/CNG mix fuel § Dual Fuel: Gas/CNG § CNG Electric Hybrids § ICE § Turbine

Questions? Images: NYSERDA and Honda Gx website