Mechanical Efficiency of Diesel Engine Calculator

✖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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Formula

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Mechanical Efficiency of Diesel Engine

Formula

`"η"_{"m"} = "P"_{"4b"}/"P"_{"4i"}`

Example

`"0.733086"="5537kW"/"7553kW"`

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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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Credits

Created by Nisarg

Indian Institute of Technology,Roorlee (IITR), Roorkee

Nisarg has created this Calculator and 100+ more calculators!

Verified by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has verified this Calculator and 600+ more calculators!

< 25 Diesel Engine Power Plant Calculators

Overall Efficiency or Brake Thermal Efficiency using Brake Mean Effective Pressure

Go Brake Thermal Efficiency = (Brake Mean Effective Pressure*Piston Area*Stroke of Piston*(RPM/2)*Number of Cylinders)/(Fuel Consumption Rate*Calorific Value*60)

Break Power given Bore and Stroke

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

Indicated Power of 2 Stroke Engine

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

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

Brake Power using Break Mean Effective Pressure

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

Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency

Go Brake Thermal Efficiency = (Mechanical Efficiency*Indicated Power of 4 Stroke)/(Fuel Consumption Rate*Calorific Value)

Overall Efficiency or Brake Thermal Efficiency using Friction Power and Indicated Power

Go Brake Thermal Efficiency = (Indicated Power of 4 Stroke-Friction Power)/(Fuel Consumption Rate*Calorific Value)

Thermal Efficiency using Indicated Mean Effective Pressure and Break Mean Effective Pressure

Go Indicated Thermal Efficiency = Brake Thermal Efficiency*Indicated Mean Effective Pressure/Brake Mean Effective Pressure

Thermal Efficiency using Indicated Power and Brake Power

Go Indicated Thermal Efficiency = Brake Thermal Efficiency*Indicated Power of 4 Stroke/Brake Power of 4 Stroke

Thermal Efficiency using Indicated Power and Fuel Consumption Rate

Go Indicated Thermal Efficiency = Indicated Power of 4 Stroke/(Fuel Consumption Rate*Calorific Value)

Mechanical Efficiency using Indicated Power and Friction Power

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

Brake Thermal Efficiency of Diesel Engine Power Plant

Go Brake Thermal Efficiency = Brake Power of 4 Stroke/(Fuel Consumption Rate*Calorific Value)

Mechanical Efficiency using Break Power and Friction Power

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

Work Done per Cycle

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

Brake Mean Effective Pressure

Go Brake Mean Effective Pressure = Mechanical Efficiency*Indicated Mean Effective Pressure

Break Power of 4 Stroke Diesel Engine

Go Brake Power of 4 Stroke = (2*pi*Torque*(RPM/2))/60

Brake Specific Fuel Consumption given Brake Power and Fuel Consumption Rate

Go Brake Specific Fuel Consumption = Fuel Consumption Rate/Brake Power of 4 Stroke

Break Power of 2 Stroke Diesel Engine

Go Brake Power of 2 Stroke = (2*pi*Torque*RPM)/60

Thermal Efficiency of Diesel Engine Power Plant

Go Indicated Thermal Efficiency = Brake Thermal Efficiency/Mechanical Efficiency

Break Power given Mechanical Efficiency and Indicated Power

Go Brake Power of 4 Stroke = Mechanical Efficiency*Indicated Power of 4 Stroke

Mechanical Efficiency of Diesel Engine

Go Mechanical Efficiency = Brake Power of 4 Stroke/Indicated Power of 4 Stroke

Indicated Power using Brake Power and Friction Power

Go Indicated Power of 4 Stroke = Brake Power of 4 Stroke+Friction Power

Friction Power of Diesel Engine

Go Friction Power = Indicated Power of 4 Stroke-Brake Power of 4 Stroke

Brake Mean Effective Pressure given Torque

Go Brake Mean Effective Pressure = Proportionality Constant*Torque

Area of Piston given Piston Bore

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

Mechanical Efficiency of Diesel Engine Formula

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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