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How do you measure specific fuel consumption?
Simple Method
- Formula To Estimate Maximum Engine Fuel Consumption. Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight.
- 300-hp Diesel Engine Example. GPH = (0.4 x 300)/ 7.2 = 105/7.2 = 16.6 GPH.
- 300-hp Gasoline Engine Example. GPH = (0.50 x 300)/ 6.1 = 150/6.1 = 24.5 GPH.
- Other Related Resources:
What is the unit for SFC?
TSFC or SFC for thrust engines (e.g. turbojets, turbofans, ramjets, rocket engines, etc.) is the mass of fuel needed to provide the net thrust for a given period e.g. lb/(h·lbf) (pounds of fuel per hour-pound of thrust) or g/(s·kN) (grams of fuel per second-kilonewton).
What is the unit of specific fuel consumption Mcq?
What is the unit of specific fuel consumption? Explanation: The unit of specific fuel consumption is given by kg/kW-hr.
What is SFC in gas turbine?
Static frequency Converter (SFC). Function of SFC is to change the generator into the motor at start up process. This will rotate gas turbine for combustion.
What do you mean by specific fuel consumption?
Definition of ‘specific fuel consumption’ Specific fuel consumption is the amount of fuel consumed by a vehicle for each unit of power output. The specific fuel consumption of an engine is the rate of fuel burnt to produce a unit of thrust.
What is specific fuel consumption in IC engine?
Specific Fuel Consumption (sfc): The fuel consumption characteristics of an engine are generally expressed in terms of specific fuel consumption in kg of fuel per kW-hr. It is an important parameter that reflects how good engine performance is.
What is G kWh fuel consumption?
A consumption map or efficiency map shows the brake-specific fuel consumption in g per kWh over mean effective pressure per rotational speed of an internal combustion engine. Depending on the fuel type, diesel and gasoline engines reach up to 210 g/kWh and about 40\% efficiency.
How many kWh is a litre of petrol?
9.7 kWh
calorific values: diesel: 10.7 kWh/l; jet fuel: 10.4 kWh/l; petrol: 9.7 kWh/l.
How many joules is a litre of petrol?
31,536,000 joules
To put how small a joule is into perspective, a liter of gasoline has 31,536,000 joules of energy in it. A kilowatt-hour is equal to 3,600,000 joules. Therefore, a liter of gasoline has 8.76 kW/hr of energy in it, which is a much more manageable number.
How do you calculate fuel consumption?
Fuel consumption figures for excavators are usually expressed as gallons per hour. To calculate the fuel consumption, simply divide the number of gallons of diesel required to fill the excavator’s fuel tank by the number of hours that the machine has worked.
What is thrust specific fuel consumption?
Thrust specific fuel consumption (TSFC) is an engineering term that is used to describe the fuel efficiency of an engine design with respect to thrust output. TSFC may also be thought of as fuel consumption (grams/second) per unit of thrust (kilonewtons, or kN). It is thus thrust-specific, meaning that the fuel consumption is divided by the thrust.
What is brake specific fuel consumption?
Brake specific fuel consumption ( BSFC ) is a measure of the efficiency of an internal combustion engine. The term “specific fuel consumption” refers to the amount of fuel used normalized to the amount of power generated, which gives you an efficiency at at certain operating point of the engine.
What is the fuel consumption of a ship?
If the ship is MV (Motor Vessel), it mostly uses HFO(Heavy Fuel Oil) as its fuel for daily consumption which is around 200-300 Tonnes/day for a vessel size of around 350m. But fuel consumption varies from ship to ship depending upon its speed and requirements.