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Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency Calculator

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✖Mechanical Efficiency is measure of the effectiveness with which a mechanical system performs.ⓘ Mechanical Efficiency [η_m]			+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%
✖Fuel Consumption Rate refers to the rate at which fuel is consumed by the engine.ⓘ Fuel Consumption Rate [m_f]			+10% -10%
✖Calorific Value is a measure of the amount of energy contained in a unit of fuel. It is a measure of the energy released when the fuel is burned.ⓘ Calorific Value [CV]			+10% -10%

✖Brake Thermal Efficiency is defined as the ratio of the net work output of the engine to the energy input from the fuel, expressed as a percentage.ⓘ Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency [BTE]

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Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Brake Thermal Efficiency = (Mechanical Efficiency*Indicated Power of 4 Stroke)/(Fuel Consumption Rate*Calorific Value)
BTE = (η_m*P_4i)/(m_f*CV)
This formula uses 5 Variables

Variables Used

Brake Thermal Efficiency - Brake Thermal Efficiency is defined as the ratio of the net work output of the engine to the energy input from the fuel, expressed as a percentage.
Mechanical Efficiency - Mechanical Efficiency is measure of the effectiveness with which a mechanical system performs.
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.
Fuel Consumption Rate - (Measured in Kilogram per Second) - Fuel Consumption Rate refers to the rate at which fuel is consumed by the engine.
Calorific Value - (Measured in Joule per Kilogram) - Calorific Value is a measure of the amount of energy contained in a unit of fuel. It is a measure of the energy released when the fuel is burned.

STEP 1: Convert Input(s) to Base Unit

Mechanical Efficiency: 0.733 --> No Conversion Required
Indicated Power of 4 Stroke: 7553 Kilowatt --> 7553000 Watt (Check conversion here)
Fuel Consumption Rate: 0.355 Kilogram per Second --> 0.355 Kilogram per Second No Conversion Required
Calorific Value: 42000 Kilojoule per Kilogram --> 42000000 Joule per Kilogram (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

BTE = (η_m*P_4i)/(m_f*CV) --> (0.733*7553000)/(0.355*42000000)

Evaluating ... ...

BTE = 0.371317840375587

STEP 3: Convert Result to Output's Unit

0.371317840375587 --> No Conversion Required

FINAL ANSWER

0.371317840375587 ≈ 0.371318 <-- Brake Thermal Efficiency

(Calculation completed in 00.006 seconds)

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Created by Nisarg

Indian Institute of Technology,Roorlee (IITR), Roorkee

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Chandigarh University (CU), Punjab

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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

Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency Formula

LaTeX Go

Brake Thermal Efficiency = (Mechanical Efficiency*Indicated Power of 4 Stroke)/(Fuel Consumption Rate*Calorific Value)
BTE = (η_m*P_4i)/(m_f*CV)

On what factors the efficiency depends?

The efficiency of a diesel engine power plant can vary depending on a number of factors, including the design of the engine, the quality of the fuel being used, and the operating conditions of the plant. Generally speaking, diesel engines are known for their high thermal efficiency, which is the ratio of the energy output of the engine to the energy input from the fuel.

How to Calculate Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency?

Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency calculator uses Brake Thermal Efficiency = (Mechanical Efficiency*Indicated Power of 4 Stroke)/(Fuel Consumption Rate*Calorific Value) to calculate the Brake Thermal Efficiency, The Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency formula is defined as a measure of how effectively an engine converts the chemical energy in its fuel into useful mechanical work. Brake Thermal Efficiency is denoted by BTE symbol.

How to calculate Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency using this online calculator? To use this online calculator for Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency, enter Mechanical Efficiency (η_m), Indicated Power of 4 Stroke (P_4i), Fuel Consumption Rate (m_f) & Calorific Value (CV) and hit the calculate button. Here is how the Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency calculation can be explained with given input values -> 0.371318 = (0.733*7553000)/(0.355*42000000).

FAQ

What is Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency?

The Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency formula is defined as a measure of how effectively an engine converts the chemical energy in its fuel into useful mechanical work and is represented as BTE = (η_m*P_4i)/(m_f*CV) or Brake Thermal Efficiency = (Mechanical Efficiency*Indicated Power of 4 Stroke)/(Fuel Consumption Rate*Calorific Value). Mechanical Efficiency is measure of the effectiveness with which a mechanical system performs, 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, Fuel Consumption Rate refers to the rate at which fuel is consumed by the engine & Calorific Value is a measure of the amount of energy contained in a unit of fuel. It is a measure of the energy released when the fuel is burned.

How to calculate Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency?

The Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency formula is defined as a measure of how effectively an engine converts the chemical energy in its fuel into useful mechanical work is calculated using Brake Thermal Efficiency = (Mechanical Efficiency*Indicated Power of 4 Stroke)/(Fuel Consumption Rate*Calorific Value). To calculate Overall Efficiency or Brake Thermal Efficiency using Mechanical Efficiency, you need Mechanical Efficiency (η_m), Indicated Power of 4 Stroke (P_4i), Fuel Consumption Rate (m_f) & Calorific Value (CV). With our tool, you need to enter the respective value for Mechanical Efficiency, Indicated Power of 4 Stroke, Fuel Consumption Rate & Calorific Value 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 Brake Thermal Efficiency?

In this formula, Brake Thermal Efficiency uses Mechanical Efficiency, Indicated Power of 4 Stroke, Fuel Consumption Rate & Calorific Value. We can use 3 other way(s) to calculate the same, which is/are as follows -

Brake Thermal Efficiency = Brake Power of 4 Stroke/(Fuel Consumption Rate*Calorific Value)
Brake Thermal Efficiency = (Indicated Power of 4 Stroke-Friction Power)/(Fuel Consumption Rate*Calorific Value)
Brake Thermal Efficiency = (Brake Mean Effective Pressure*Piston Area*Stroke of Piston*(RPM/2)*Number of Cylinders)/(Fuel Consumption Rate*Calorific Value*60)

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