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is the fuel consume by the the engine
You can calculate fuel consumption per Kilowatt hour in diesel engine by multiplying the miles per gallon by the wattage per hour that the engine runs. This gives the net Kilowatt hour fuel consumption.
Diesel Engine SFC is Specific Fuel Consumption of Diesel Engine. This used to know how efficient Fuel utilization of Diesel Engine to produce electricity. Usually formula of SFC is Fuel Consumption divided by Electricity Production (liter/kWh).
The consumption of lubricating oil for a diesel engine depends on the operating conditions and the design of the engine. There are some averages depending on the year of the engine. Pre 1980's engine are around 25% of fuel consumption. Pre 1990 engines are around 20% of fuel consumption and more recently built diesel engines are around 1% of fuel consumption.
The specific fuel consumption (SFC) of a marine diesel engine, such as a MAN B&W engine, is typically calculated using the formula: [ \text{SFC} = \frac{\text{Fuel flow rate (kg/h)}}{\text{Power output (kW)}} ] This formula provides the amount of fuel consumed per unit of power produced, allowing for the assessment of engine efficiency. It is commonly expressed in units like kg/kWh.
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To calculate brake horsepower (BHP) for a diesel generator, you can use the formula: BHP = (Torque × RPM) / 5252, where Torque is measured in pound-feet (lb-ft) and RPM is the engine speed in revolutions per minute. Alternatively, you can estimate BHP using the generator's fuel consumption rate, where BHP can be approximated by dividing the fuel flow rate (in gallons per hour) by the specific fuel consumption (SFC) in gallons per BHP-hour. This gives you a measure of the engine's output power based on its efficiency and operational characteristics.
There are several causes for high fuel consumption in a diesel engine. These include a difference in the weight of the vehicle, increased usage of air conditioning, and a difference in tire pressure.
To calculate the frequency in a diesel engine, you need to determine the engine's RPM (revolutions per minute) and the number of power strokes per revolution. The frequency can be calculated using the formula: Frequency (Hz) = (RPM × Number of Power Strokes) / 60. For a four-stroke engine, the number of power strokes is typically 1 per 2 revolutions, while for a two-stroke engine, it is 1 per revolution. Adjust the formula accordingly based on the engine type.
You will need to have some information ready. It is good to know the horsepower and the torque of your diesel engine.
IT CAN BE CALCULATED THEORETICALLY & PRACTICALLY:- 1. theoretically--- For this you must know the SFC(specific fuel consumption) of the engine at the given load. for example(let us consider a diesel generator of 20 kw having SFC as 232 gm/kw-hr at 75% load) (20x0.75)x232 therefore Fuel consumption in ltrs/hr= =4.094ltr/hr 0.85x1000 here 0.75 is for 75% load 0.85 is density of diesel 1000 is factor to convert milli-litre into litres
Depends entirely on the load being applied to the engine.