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Mechanical Efficiency of Diesel Engine Calculator

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✖Brake Power of 4 Stroke is the output of the engine at the shaft measured by a dynamometer in a 4 stroke diesel engine.ⓘ Brake Power of 4 Stroke [P_4b]			+10% -10%
✖Indicated Power of 4 Stroke is a measure of the power output of a 4 stroke diesel engine based on the pressure exerted on the piston during the combustion process.ⓘ Indicated Power of 4 Stroke [P_4i]			+10% -10%

✖Mechanical Efficiency is measure of the effectiveness with which a mechanical system performs.ⓘ Mechanical Efficiency of Diesel Engine [η_m]

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Mechanical Efficiency of Diesel Engine Solution

STEP 0: Pre-Calculation Summary

Formula Used

Mechanical Efficiency = Brake Power of 4 Stroke/Indicated Power of 4 Stroke
η_m = P_4b/P_4i
This formula uses 3 Variables

Variables Used

Mechanical Efficiency - Mechanical Efficiency is measure of the effectiveness with which a mechanical system performs.
Brake Power of 4 Stroke - (Measured in Watt) - Brake Power of 4 Stroke is the output of the engine at the shaft measured by a dynamometer in a 4 stroke diesel engine.
Indicated Power of 4 Stroke - (Measured in Watt) - Indicated Power of 4 Stroke is a measure of the power output of a 4 stroke diesel engine based on the pressure exerted on the piston during the combustion process.

STEP 1: Convert Input(s) to Base Unit

Brake Power of 4 Stroke: 5537 Kilowatt --> 5537000 Watt (Check conversion here)
Indicated Power of 4 Stroke: 7553 Kilowatt --> 7553000 Watt (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_m = P_4b/P_4i --> 5537000/7553000

Evaluating ... ...

η_m = 0.733086190917516

STEP 3: Convert Result to Output's Unit

0.733086190917516 --> No Conversion Required

FINAL ANSWER

0.733086190917516 ≈ 0.733086 <-- Mechanical Efficiency

(Calculation completed in 00.004 seconds)

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Indian Institute of Technology,Roorlee (IITR), Roorkee

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< Diesel Engine Power Plant Calculators

Indicated Power of 2 Stroke Engine

LaTeX Go Indicated Power of 2 Stroke Engine = (Indicated Mean Effective Pressure*Piston Area*Stroke of Piston*RPM*Number of Cylinders)/60

Indicated Power of 4 Stroke Engine

LaTeX Go Indicated Power of 4 Stroke = (Indicated Mean Effective Pressure*Piston Area*Stroke of Piston*(RPM/2)*Number of Cylinders)/60

Work Done per Cycle

LaTeX Go Work = Indicated Mean Effective Pressure*Piston Area*Stroke of Piston

Area of Piston given Piston Bore

LaTeX Go Piston Area = (pi/4)*Piston Bore^2

Mechanical Efficiency of Diesel Engine Formula

LaTeX Go

Mechanical Efficiency = Brake Power of 4 Stroke/Indicated Power of 4 Stroke
η_m = P_4b/P_4i

What are the characteristics of Diesel Engine Power Plants?

Diesel engine power plants are a type of power generation facility that use diesel engines to convert the chemical energy stored in diesel fuel into mechanical energy, which is then converted into electrical energy through a generator.

How to Calculate Mechanical Efficiency of Diesel Engine?

Mechanical Efficiency of Diesel Engine calculator uses Mechanical Efficiency = Brake Power of 4 Stroke/Indicated Power of 4 Stroke to calculate the Mechanical Efficiency, The Mechanical Efficiency of Diesel Engine formula is defined as the ratio of its brake power to indicated power. It represents the efficiency of the engine's conversion of fuel energy into useful work output, and takes into account the losses due to friction, mechanical inefficiencies, and other factors. Mechanical Efficiency is denoted by η_m symbol.

How to calculate Mechanical Efficiency of Diesel Engine using this online calculator? To use this online calculator for Mechanical Efficiency of Diesel Engine, enter Brake Power of 4 Stroke (P_4b) & Indicated Power of 4 Stroke (P_4i) and hit the calculate button. Here is how the Mechanical Efficiency of Diesel Engine calculation can be explained with given input values -> 0.733086 = 5537000/7553000.

FAQ

What is Mechanical Efficiency of Diesel Engine?

The Mechanical Efficiency of Diesel Engine formula is defined as the ratio of its brake power to indicated power. It represents the efficiency of the engine's conversion of fuel energy into useful work output, and takes into account the losses due to friction, mechanical inefficiencies, and other factors and is represented as η_m = P_4b/P_4i or Mechanical Efficiency = Brake Power of 4 Stroke/Indicated Power of 4 Stroke. Brake Power of 4 Stroke is the output of the engine at the shaft measured by a dynamometer in a 4 stroke diesel engine & Indicated Power of 4 Stroke is a measure of the power output of a 4 stroke diesel engine based on the pressure exerted on the piston during the combustion process.

How to calculate Mechanical Efficiency of Diesel Engine?

The Mechanical Efficiency of Diesel Engine formula is defined as the ratio of its brake power to indicated power. It represents the efficiency of the engine's conversion of fuel energy into useful work output, and takes into account the losses due to friction, mechanical inefficiencies, and other factors is calculated using Mechanical Efficiency = Brake Power of 4 Stroke/Indicated Power of 4 Stroke. To calculate Mechanical Efficiency of Diesel Engine, you need Brake Power of 4 Stroke (P_4b) & Indicated Power of 4 Stroke (P_4i). With our tool, you need to enter the respective value for Brake Power of 4 Stroke & Indicated Power of 4 Stroke and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Mechanical Efficiency?

In this formula, Mechanical Efficiency uses Brake Power of 4 Stroke & Indicated Power of 4 Stroke. We can use 2 other way(s) to calculate the same, which is/are as follows -

Mechanical Efficiency = (Indicated Power of 4 Stroke-Friction Power)/Indicated Power of 4 Stroke
Mechanical Efficiency = Brake Power of 4 Stroke/(Brake Power of 4 Stroke+Friction Power)

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