What is specific fuel consumption formula?
It is the rate of fuel consumption divided by the power produced. In traditional units, it measures fuel consumption in pounds per hour divided by the brake horsepower, lb/(hp⋅h); in SI units, this corresponds to the inverse of the units of specific energy, kg/J = s2/m2.
What is specific fuel consumption measured in?
Gathering all the terms together, TSFC is the mass of fuel burned by an engine in one hour divided by the thrust that the engine produces. The units of this efficiency factor are mass per time divided by force (in English units, pounds mass per hour per pound; in metric units, kilograms per hour per Newton).
What is meant by specific fuel consumption Mcq?
Explanation: Specific fuel consumption is the ratio of fuel consumption rate to the power produced. Thermal efficiency is the ratio of the power produced to the fuel consumption rate. Explanation: Mechanical efficiency is the ratio of friction power to indicated power.
What is brake power in IC engine?
Brake power is the power available at the crankshaft. In the case of the IC engine, it is output power, in the case of the compressor, it is input power.
How is the formula for specific fuel consumption determined?
Method 1 of 3: Finding Fuel Consumption Know that the equation for fuel consumption is “Miles Driven divided by Amount of Gas Used. Reset the “trip odometer” after you fill up your tank. Newer cars have a trip odometer that you can set to zero at any time. Record the miles on the trip odometer right before you buy more gas. Drive your car until the tank is almost empty.
What does specific fuel consumption mean?
Specific fuel consumption is the amount of fuel consumed by a vehicle for each unit of power output. A vehicle’s specific fuel consumption is more or less independent from its nitrogen oxide emissions per kilometer. The specific fuel consumption of an engine is the rate of fuel burnt to produce a unit of thrust.
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 specific energy consumption?
Brake specific energy consumption is the ratio of energy obtained by burning fuel for an hour to the actual energy or Brake power obtained at the wheels . It is dimensionless. It is indicative how effectively the energy obtained from the fuel is reaching the wheels.