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CVS SYSTEM [1 record]
Record 1 - internal organization data 2003-09-19
Record 1, English
Record 1, Subject field(s)
- Scientific Research Equipment
- Environmental Studies and Analyses
- Air Pollution
- Exhaust Systems (Motor Vehicles)
Record 1, Main entry term, English
- constant volume sampling system
1, record 1, English, constant%20volume%20sampling%20system
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- CVS system 1, record 1, English, CVS%20system
correct
- CVS 2, record 1, English, CVS
correct
- CVS 2, record 1, English, CVS
- constant volume sampler 2, record 1, English, constant%20volume%20sampler
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Motor vehicle exhaust is a complex mixture of unburned fuel, combustion products (including a high water vapor content), and intake air that exits the tail pipe at high temperatures. In simulated driving conditions on the dynamometer, the volume of the exhaust emitted from the tail pipe is continually changing depending on where in the driving cycle the vehicle is (for example, during acceleration, during deceleration, at constant speed, or at idle). To quantitatively determine emission rates from vehicles, we use a constant volume sampling system, which maintains a constant total flow rate of vehicle exhaust plus dilution air. With a CVS system, as exhaust flow increases, such as during heavy acceleration, the dilution air is automatically decreased and the sampling source is representative of exhaust variations. This CVS system provides the source for all exhaust samples collected (regulated and unregulated). 2, record 1, English, - constant%20volume%20sampling%20system
Record 1, Key term(s)
- constant-volume sampling system
- constant-volume sampler
Record 1, French
Record 1, Domaine(s)
- Matériel et équipement (Recherche scientifique)
- Études et analyses environnementales
- Pollution de l'air
- Échappement (Véhicules automobiles)
Record 1, Main entry term, French
- système de prélèvement à volume constant
1, record 1, French, syst%C3%A8me%20de%20pr%C3%A9l%C3%A8vement%20%C3%A0%20volume%20constant
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- système CVS 1, record 1, French, syst%C3%A8me%20CVS
correct, masculine noun
- système d'échantillonnage à volume constant 2, record 1, French, syst%C3%A8me%20d%27%C3%A9chantillonnage%20%C3%A0%20volume%20constant
correct, masculine noun
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
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