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AIR-FUEL RATIO [5 records]

Record 1 2011-10-20

English

Subject field(s)
  • Fueling Systems (Motor Vehicles)
DEF

The proportions of air and fuel (by weight) supplied for combustion.

CONT

The influence of oxygen is important because of growing interest in applying oxygen enrichment to natural gas-fired industrial furnaces. The advantage of adding oxygen to the air or fuel stream, while keeping the air-to-fuel ratio constant, is increased heat flux - this results in more efficient combustion design. Oxygen enrichment for the intake air of internal combustion engines has also been considered, as a measure to control exhaust pollutants, especially particulate emissions, from diesel engines.

French

Domaine(s)
  • Alimentation (Véhicules automobiles)
CONT

L'influence de l'oxygène est importante, à cause de l'intérêt de plus en plus grand porté à l'application de l'enrichissement en oxygène aux fournaises industrielles qui fonctionnent au gaz naturel. L'avantage d'ajouter de l'oxygène à l'air ou au jet de combustible se traduit par une augmentation du flux de chaleur, tout en gardant constant le rapport air/combustible, ce qui produit des systèmes de combustion plus efficaces. L'enrichissement à l'oxygène dans l'admission d'air des moteurs à combustion interne, a aussi été considéré comme mesure possible pour limiter les polluants dans les gaz d'échappement des moteurs diésels, plus particulièrement les émissions particulaires.

Spanish

Save record 1

Record 2 2002-01-29

English

Subject field(s)
  • Environmental Economics
  • Engines (Motor Vehicles)

French

Domaine(s)
  • Économie environnementale
  • Moteur (Véhicules automobiles)

Spanish

Campo(s) temático(s)
  • Economía del medio ambiente
  • Motores (Vehículos automotores)
Save record 2

Record 3 2000-04-28

English

Subject field(s)
  • Combustion and Fuels (Fireplaces)
DEF

The air-fuel ratio which results in complete burning without excess air.

CONT

The combustive power of a fuel is the quantity of air (agent of combustion) strictly necessary for complete combustion. When expressed in Nm3 / kg the figure is around 6-5 Nm3 / kg for the organic matter in town sewage sludge and l0-5 Nm3 / kg for fuel oil (104 ft3 / lb and 167 ft3 / lb).

French

Domaine(s)
  • Combustion et combustibles (Foyers)
CONT

Le pouvoir comburivore d'un combustible est la quantité d'air (comburant) strictement nécessaire pour assurer sa combustion complète. Il est en général exprimé en Nm3 / kg et sa valeur est d'environ 6,5 Nm3 / kg de matières organiques de boues résiduaires urbaines et 10,5 Nm3 / kg de fuel.

Spanish

Save record 3

Record 4 2000-02-28

English

Subject field(s)
  • Combustion and Fuels (Fireplaces)
DEF

the ratio of air supply flow rate to the fuel supply flow rate, measured in the same units under the same conditions. The optimum air-fuel ratio is the minimum ratio that will provide complete combustion of the fuel with enough excess air to maintain a stable flame envelope.

Key term(s)
  • fuel-air ratio

French

Domaine(s)
  • Combustion et combustibles (Foyers)
CONT

L'influence de l'oxygène est importante, à cause de l'intérêt de plus en plus grand porté à l'application de l'enrichissement en oxygène aux fournaises industrielles qui fonctionnent au gaz naturel. L'avantage d'ajouter de l'oxygène à l'air ou au jet de combustible se traduit par une augmentation du flux de chaleur, tout en gardant constant le rapport air/combustible, ce qui produit des systèmes de combustion plus efficaces.

Spanish

Save record 4

Record 5 1985-11-20

English

Subject field(s)
  • Anti-pollution Measures
  • Motor Vehicles and Bicycles
CONT

Fuel economy might appear to be a secondary focus for researchers whose primary concern is with catalytic converters, air-fuel ratio sensors, and emissions control standards. But for staff at Princeton University's Centre for Energy and Environmental Studies, driving far and driving clean go hand in hand.

French

Domaine(s)
  • Mesures antipollution
  • Véhicules automobiles et bicyclettes

Spanish

Save record 5

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