Two LPG propelled buses, one Scania CR 112 with suction engine and one turbocharged Volvo P10M without charge air cooler, were investigated. The emission patterns of the vehicles tested are quite different in some respects, probably because of differing engine design. The nitrogen oxides discharge of the Scania bus is about three times higher than those of the Volvo bus. In addition, emissions of polycyclic aromatic hydrocarbons and mutagenesis are higher for the Scania bus. Both buses have large emissions of hydrocarbons due to FID-analysis in comparison with diesel propulsion. There might be a potential for environmental improvement by gas propulsion. The discharge of particles and some other impurities strongly decrease and also the mutagenesis. These statements imply that the gas unit works well, is optimized for low emissions of impurities, and has a firm adjusting. (ERA citation 14:011310)
Is Liquefied Petroleum Gas Compatible with Environment
1987
30 pages
Report
No indication
English
Fuels , Environmental Studies , Combustion & Ignition , Air Pollution & Control , Liquefied Petroleum Gases , Automotive Fuels , Buses , Environment , Liquid Fuels , Mutagenesis , Nitrogen Oxides , Particulates , Petroleum Fractions , Polycyclic Aromatic Hydrocarbons , Foreign technology , ERDA/330800
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