Quick Answer: How is engine distance calculated?

Engine distance = Pitch X RPM X 60 X 24 / 1852.

How is main engine fuel consumption calculated?

Simple Method

  1. Formula To Estimate Maximum Engine Fuel Consumption. Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight. …
  2. 300-hp Diesel Engine Example. GPH = (0.4 x 300)/ 7.2 = 105/7.2 = 16.6 GPH.
  3. 300-hp Gasoline Engine Example. GPH = (0.50 x 300)/ 6.1 = 150/6.1 = 24.5 GPH.
  4. Other Related Resources:


How is slip of propeller calculated?

Calculate Propeller Slip: RPM div by GEAR RATIO x PITCH div by 1056 = Theoretical Speed. Then you divide the customers actual (gps) speed by the Theoretical speed to get propeller efficiency. For Example: 5500 div by 2.07 x 20 div by 1056 = 50.23mph.

How do you fix engine speed?

Calculating Slip Of The Propeller

  1. We have to calculate for the speed of the engine. This is the formula for the engine speed: Engine speed = RPM x P x 60. …
  2. Solving for the Observed Speed. But we have to solve first for the steaming time. …
  3. We can now solve for the slip of the propeller. This the formula for the slip.
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How do I calculate my daily fuel consumption?

Calculating consumption and range

Simply note down the distance travelled since the last top-up and then take a note of how much fuel it consumed to travel that distance, then divide the litres used by the kilometres travelled and multiply by 100 to calculate consumption in litres/100km.

How do you solve fuel consumption?

Formulae used for conversion and calculation of fuel consumption:

  1. Divide the distance by the litres used to get the km/litre.
  2. Convert the km/litre to L/100 km i.e. divide 100 by km per litre.
  3. Convert km/litre to miles per gallon i.e. multiply km/litre by 2.825.

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. … The contour lines show the specific fuel consumption, indicating the areas of the speed/load regime where the engine is more or less efficient.

How much Propeller slip is normal?

Most setups are in the 5-20% slip range, and of course, every boat is different. If the percentage shown is greater than 20, there is typically room for improvement by switching to a different propeller, adjusting drive height, etc.

What is slip formula?

If the revolving magnetic flux’s synchronous speed & the speed of rotor are Ns & Nr in the motor, then the speed among them can be equivalent to (Ns – Nr). So, slip can be determined as. S = (Ns – Nr) / Ns.

What is real slip?

Real slip or true slip

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This is the difference between the theoretical speed and the speed of advance, express as a ratio or percentage of the theoretical speed. The real slip is always positive and it dependant of current.

What increases engine speed?

Force is mass*acceleration; the mass of the piston is constant, it means there is an increase in the acceleration of the piston and hence the speed. So with nodoubt, it can be said that ‘The speed of the engine increases due increase in the load (air+fuel) on the engine”.

What determines engine speed?

The rotating speed of an electric motor depends on two factors: its physical construction, and the frequency (Hz) of the voltage supply. Electrical engineers select the speed of a motor based on the needs of each application, similar to how the mechanical load determines the horsepower required.

What is high engine speed?

High-speed engines, with rated speeds of 900 to 1,200 revolutions per minute, are used in a few cases in ships, but engines of this class are almost always found in small craft such as tugs, fishing vessels, and high-speed ferries.

How long will a 1 Litre engine last?

Roughly (very roughly) between 0.05 and 0.20 litres per km, depending on so many things but mostly engine size. A car runs 20 km using 1 litre of petrol.

What is a good fuel consumption?

Anything that is listed as less than 6-litres/100km or more than 16.5km/1-litre is considered to be pretty good. The first (and most common) reference is litres per 100km (litres/100km). … Rule of thumb on this one: the lower the number of litres stated, the better the fuel economy.

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How far can I go on a full tank of gas calculator?

To calculate your car’s total range, multiply its average highway miles per gallon by its fuel capacity. For example, if your car averages 25 miles per gallon on the highway and has a 12-gallon fuel tank, its range is 25 x 12 = 300 miles.

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