Analysis of Emissions from Ultra Low Sulfur Diesel and Biodiesel Operated Garbage Trucks pp. 1-40
Authors: (Venkata Naga Ravikanth Garimella, Ashok Kumar, Department of Civil Engineering, University of Toledo, Toledo, Ohio)
Abstract: This chapter provides an insight into the study of exhaust emissions from in-use garbage trucks operating under different idling modes. Several engine and fuel characteristics that have been widely predicted to affect the emission concentrations of pollutants were used in the evaluation of exhaust emission characteristics. The emission concentrations of carbon monoxide (CO), sulfur dioxide (SO2), oxides of nitrogen (NO, NO2, and NOX), and carbon dioxide (CO2) were examined with respect to different engine parameters such as fuel temperature, coolant temperature, and percent fuel. A Testo 350 XL portable emission monitoring instrument was used to collect the data on a one-second interval scale simultaneously with the engine parameter data that were collected using OBD software. The tail pipe emissions from ultra low sulfur diesel (ULSD) are compared with biodiesel (BD/B20) emissions. Biodiesel garbage trucks emitted higher concentrations of NOX during both hot and cold starts. A comprehensive study of different vehicle, fuel, and operating parameters that affect the exhaust emission concentrations were conducted to find a better alternative to ULSD.