Results, Problems and Limits of Organoleptic Determination of Odor for Commercial Vehicles 785027
The determination of odor-intensity of engine exhaust is
problematic due to the lack of objective measuring methods.
Potential determination is based on the hypothesis that there is a
correlation between a perceived intensity of odor and measurable
airborne quantities. Attempts to discover such correlations are the
subject of the paper. A secondary task was to correlate such
measurable emissions with engine operation.
Results show that only statistical tendencies with limited use
can be derived from the tests, especially when small differences in
odor are involved. It is particularly difficult to separate
disruptive influences from test results. However, no simple means
were found suitable to reduce the odor level of fuel-injected
Diesel engines without sacrificing other advantages. Therefore, it
seems more reasonable to eliminate or reduce odors by means of
mechanisms in the exhaust line.
Helmut Daudel, Horst Hardenberg
17th FISITA Congress (1978), Budapest, Hungary