Variability in Vehicle’ Exhaust Emissions and Fuel Consumption in Urban Driving Pattern

Mohamed Watany^1,

¹Department of Automotive Engineering, Helwan University, Egypt

Cite this paper:
Mohamed Watany. Variability in Vehicle’ Exhaust Emissions and Fuel Consumption in Urban Driving Pattern. American Journal of Vehicle Design. 2015; 3(1):31-38. doi: 10.12691/ajvd-3-1-5

Abstract

Over the past several decades, observed rapid expansion of the transportation sector and increased fuel consumption triggered by rapid growth in population and urban areas. This has led to massive increase in number of vehicles and private vehicle per capita. In this paper, data for statistical analysis have been collected, where the remote sensing measurements based on one international cycle for urban area in . Investigation of exhaust emission pollutants emitted by gasoline vehicles in metropolitan area of has revealed four major pollutants affecting the emission rates of nitrogen oxide (NO_x), carbon monoxide (CO), carbon dioxide (CO2) and hydrocarbon (HC). The variables affecting these pollutants are vehicle age, fuel delivery system, fuel composition and availability of catalytic converter. Moreover, Fuel consumption of three in-use passenger vehicles under laboratory driving conditions is estimated using the emission pollutants derived from remote sensing and the fuel consumption formulation. The results indicate that the estimate of fuel consumption due to NOx emission pollutant ranged between 0.116-4.139 kg/km, due to CO emission pollutant ranged between 2.288-8.964 kg/km and due to HC emission pollutant ranged between 2.440-10.893 kg/km.

Keywords:
urban driving in-use private vehicles standard driving cycles emission pollutants fuel consumption vehicle age fuel delivery system remote sensing

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