8. Air pollution
Motor vehicles contribute significantly to air pollution, due in part to engine exhaust gases and in part to evaporation losses. Pollutant emissions are measured using specific, expensive, high-precision measuring devices that require regular calibration and drift checks.
8.1 Source and measurement of evaporation losses
Evaporation losses consist mainly of volatile hydrocarbons. Their quantity depends on the temperature inside the tank and fuel supply system, the ambient air temperature, and the temperature of the vehicle in general. Most evaporation losses come from fuel. They depend on the type of fuel and the design of the fuel tank and fuel system. These losses occur particularly when filling the tank and during any significant change in temperature, such...
The Ultimate Scientific and Technical Reference
This article is included in
Hydraulic, aerodynamic and thermal machines
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Air pollution
Measurement and monitoring of engine lubrication circuits
The Ultimate Scientific and Technical Reference
