Abstract: Freight railroad operations in the United States represent a substantial opportunity for liquified natural gas (LNG) to displace diesel fuel. With the promise of achieving an overwhelming economic ...

Abstract: To enhance the effectiveness of intercity passenger rail service in mitigating exhaust emissions in California, the California Department to Transportation (Caltrans) included limits on exhaust ...

Abstract: Emissions are reported for four heavy-duty trucks, which were converted to operate on compressed natural gas fuel. Two 1988 model year Ford F700 Series trucks equipped with 7.0 L gasoline ...

Abstract: Steady-state gaseous and particulate emissions data are presented from two 12-cylinder diesel locomotive engines. The two laboratory engines, a EMD 645E3B and a GE 7FDL, are rated at 1860 kW ...

Abstract: An experimental study was performed to demonstrate the fuel economy and exhaust emissions implications of retarding fuel injection timing, enhancing charge air aftercooling, and using low-sulfur, ...

Abstract: Recent measurements and modeling of primary exhaust particulate matter (PM) emissions from both gasoline and diesel-powered motor vehicles suggest that many vehicles produce PM at rates substantially ...