Exhaust gas odor threshold dilution ratios were measured during idle operation of a single-cylinder 4-stroke cycle diesel engine using n-heptane as a fuel. Odor threshold dilution ratios were determined by a single panelist using a sample presentation termed the Sniff-Mask technique.The effect of various changes in the intake atmosphere composition on odor thresholds was determined. These composition changes fall into two general classes: The substitutions of argon and helium produced a 15 fold reduction in the exhaust odor thresholds, while the substitution of carbon dioxide increased the odor threshold by a factor of 4. Directionally similar results were found for the addition experiments.The odor results could not be explained by expected changes in the diffusional processes, in the fuel spray patterns, or in the cycle temperatures.A good correlation was found between the measured exhaust odor thresholds and the lean flammability limits of premixed flames determined in the intake atmospheres used. The correlation between exhaust odor thresholds and the lean flammability limits suggests that diesel odor is caused by odorous products of partial oxidation that are produced in regions of fuel/oxidizer mixtures too lean to burn at the start of combustion.Exhaust gas odor threshold dilution ratios were measured during idle operation of a single-cylinder 4-stroke cycle diesel engine using n-heptane as a fuel. Odor threshold dilution ratios were determined by a single panelist using a sample presentation termed the Sniff-Mask technique.The effect of various changes in the intake atmosphere composition on odor thresholds was determined. These composition changes fall into two general classes: The substitutions of argon and helium produced a 15 fold reduction in the exhaust odor thresholds, while the substitution of carbon dioxide increased the odor threshold by a factor of 4. Directionally similar results were found for the addition experiments.The odor results could not be explained by expected changes in the diffusional processes, in the fuel spray patterns, or in the cycle temperatures.A good correlation was found between the measured exhaust odor thresholds and the lean flammability limits of premixed flames determined in the intake atmospheres used. The correlation between exhaust odor thresholds and the lean flammability limits suggests that diesel odor is caused by odorous products of partial oxidation that are produced in regions of fuel/oxidizer mixtures too lean to burn at the start of combustion.Exhaust gas odor threshold dilution ratios were measured during idle operation of a single-cylinder 4-stroke cycle diesel engine using n-heptane as a fuel. Odor threshold dilution ratios were determined by a single panelist using a sample presentation termed the Sniff-Mask technique.The effect of various changes in the intake atmosphere composition on odor thresholds was determined. These composition changes fall into two general classes: The substitutions of argon and helium produced a 15 fold reduction in the exhaust odor thresholds, while the substitution of carbon dioxide increased the odor threshold by a factor of 4. Directionally similar results were found for the addition experiments.The odor results could not be explained by expected changes in the diffusional processes, in the fuel spray patterns, or in the cycle temperatures.A good correlation was found between the measured exhaust odor thresholds and the lean flammability limits of premixed flames determined in the intake atmospheres used. The correlation between exhaust odor thresholds and the lean flammability limits suggests that diesel odor is caused by odorous products of partial oxidation that are produced in regions of fuel/oxidizer mixtures too lean to burn at the start of combustion.Exhaust gas odor threshold dilution ratios were measured during idle operation of a single-cylinder 4-stroke cycle diesel engine using n-heptane as a fuel. Odor threshold dilution ratios were determined by a single panelist using a sample presentation termed the Sniff-Mask technique.The effect of various changes in the intake atmosphere composition on odor thresholds was determined. These composition changes fall into two general classes: The substitutions of argon and helium produced a 15 fold reduction in the exhaust odor thresholds, while the substitution of carbon dioxide increased the odor threshold by a factor of 4. Directionally similar results were found for the addition experiments.The odor results could not be explained by expected changes in the diffusional processes, in the fuel spray patterns, or in the cycle temperatures.A good correlation was found between the measured exhaust odor thresholds and the lean flammability limits of premixed flames determined in the intake atmospheres used. The correlation between exhaust odor thresholds and the lean flammability limits suggests that diesel odor is caused by odorous products of partial oxidation that are produced in regions of fuel/oxidizer mixtures too lean to burn at the start of combustion.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Relation of Lean Combustion Limits in Diesel Engines to Exhaust Odor Intensity


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Mid-Year Meeting ; 1968



    Erscheinungsdatum :

    01.02.1968




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Diesel Exhaust Odor

    Lesley,S. / French,C.C. / Ricardo and CO.,GB | Kraftfahrwesen | 1976


    Diesel Exhaust Odor

    French, C. C. J. / Lesley, S. | SAE Technical Papers | 1976


    Diesel Exhaust Odor Its Evaluation and Relation to Exhaust Gas Composition

    Rounds, F. G. / Pearsall, H. W. | SAE Technical Papers | 1957


    Reduction of Exhaust Odor and Eye Irritation in DI Diesel Engines

    Mohon Roy, M. / Tsunemoto, H. / Ishitani, H. | British Library Conference Proceedings | 1997


    Influence of Engine Parameters on Exhaust Odor in DI Diesel Engines

    Tsunemoto, Hideyuki / Ishitani, Hiromi / Roy, Murari Mohon et al. | SAE Technical Papers | 2000