Diesel exhaust odor

Conference · Thu Jan 01 04:00:00 EST 1976

OSTI ID:7295322

Lesley, S; French, C C.J.

The relationship between diesel exhaust odor and build and setting of the engine is reported. Odor was measured by a panel of observers, using a differential technique. Two odors were presented in each test, one from a reference engine, and one from an engine with variable characteristics. The observers were asked to score the difference between the two odors. This technique reduced the effect of random variations in the observers' sensitivity. The exhaust was passed through a coarse wire-wool filter before presentation to the observers. Thus the results apply to virtually soot-free exhaust. The observers found that odor decreased as load increased, but increased as speed increased. The catalyst removed a substantial amount of odor, but the remaining variables had a far smaller effect.

• OSTI ID: 7295322
• Report Number(s): CONF-760678-3
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
AIR POLLUTION CONTROL
AUTOMOBILES
CATALYTIC CONVERTERS
COMPARATIVE EVALUATIONS
DIESEL ENGINES
ENGINES
FILTERS
FUEL-AIR RATIO
INTERNAL COMBUSTION ENGINES
ODOR
ORGANOLEPTIC PROPERTIES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
TEMPERATURE DEPENDENCE
TESTING
VEHICLES