Title: A comparison of the odorous emissions from a direct injection and an indirect injection diesel engine

Authors: N.P. Cernansky, E.D. Petrow

Addresses: Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, USA. ' Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, USA

Abstract: Two single cylinder diesel engines, a direct injection TACOM engine and an indirect injection CFR cetane engine, were modified and instrumented to incorporate odour research utilizing the Diesel Odor Analysis System. Both engines were exercised over similar ranges of operating parameters and their odourous emissions compared and contrasted. Engine operating variables having an effect on odour were identified and include: extreme air-fuel ratios or loads, injection timing, injector configuration, and fuel composition. The effects of these parameters on the odour trends were not always similar in both engine configurations. An explanation of these different odour trends is presented and is based upon the identification and location of injection rate controlled and aerodynamically controlled combustion regimes, coupled with their effect on the different combustion sources of odour emissions.

Keywords: diesel emissions; diesel engines; diesel odour; instrumentation; odorous emissions; vehicle emissions.

DOI: 10.1504/IJVD.1985.061338

International Journal of Vehicle Design, 1985 Vol.6 No.2, pp.183 - 198

Published online: 25 May 2014 *

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