Particle and smoke emission from a light duty diesel engine

Abstract

Particulate and smoke emissions were studied in the exhaust of a Mercedes Benz type OM 616 diesel engine. The weight and size distribution of the particulate matter emitted and the intensity of the smoke were measured at different engine loads and at various constant speeds in the range 35-96 km h_1. The level of the particulates emitted during a simulated seven-mode Federal Test Procedure was also determined. The results showed that both the particulate and smoke emissions were highly dependent on engine speed and load. The particulate matter collected was analyzed for its chemical composition, showing that 60-75 wt % of the particulate matter was organic compounds.

Submicrometer and Supermicrometer Particles from Diesel Vehicle Emissions

“…These particles are primarily elemental carbon, but contain also adsorbed or condensed hydrocarbons, hydrocarbon derivatives, sulfur compounds, and other materials (3,9,13). Solvent extractable organic components of diesel aerosols represent 5-40% of the particle mass depending on the fuel and the operating conditions (engine speed, power, torque, and temperature) of the vehicle (9,14,15).…”

Gaseous, particulate, and smoke emissions from a heavy duty automotive gas turbine engine

“…Under every test condition, the amount of particulates emitted was very low and was less than 0.001 g-bhp-1-h-1. In contrast, for a 1973 573 CID naturally aspirated, direct injection, V-8, Caterpillar 3150 diesel engine operating in the range from 13 to 347 bhp at constant engine speeds ranging from 1800 to 3000 rpm, the particulate emission was in the range from 0.230 to 1.934 g-bhp-1-h-1 (17) 3.57 X 10s 9.99 X 10s 1.21 X 106 9.39 X 103 3.53 X 102 8 The data given are the averages of ten measurements with a scatter of about 20% in the data.…”

“…Particulate emission data have been reported for light-duty spark ignition engines (18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28). For a 1970 350 CID Chevrolet V-8 production engine using Indolene HO 0 (clear) fuel operating at 88 km-h_1 and with sample gas temperature ranging from 300 to 600 K, the particulate emission ranged from 0.003 to 0.020 g-km-1 (0.014 to 0.091 g-bhp_1-h-i) without catalyst and from 0.0025 to 0.012 g-km-1 (0.011 to 0.055 g-bhp_1-h_1) with pelleted catalyst (13,27). These particulate emissions are much higher than those emitted from the heavy duty gas turbine engine studied.…”

“…Schematic of gas turbine engine, dynamometer, and exhaust system set up. Open circles represent thermocouple and sampling ports erties of the fuel were given by Laresgoiti and Springer (13). The engine was lubricated with Stauffer Jet II lubricating oil.…”