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Brake Power using Break Mean Effective Pressure Formula

GoBreak Power of 4 Stroke Diesel Engine Formula

GoBreak Power given Mechanical Efficiency and Indicated Power Formula

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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. Check FAQs

P 4b = \frac{BMEP \cdot A \cdot L \cdot (\frac{N}{2}) \cdot N c}{60}

P_4b - Brake Power of 4 Stroke?BMEP - Brake Mean Effective Pressure?A - Piston Area?L - Stroke of Piston?N - RPM?N_c - Number of Cylinders?

Brake Power using Break Mean Effective Pressure Example

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Here is how the Brake Power using Break Mean Effective Pressure equation looks like with Values.

Here is how the Brake Power using Break Mean Effective Pressure equation looks like with Units.

Here is how the Brake Power using Break Mean Effective Pressure equation looks like.

5531.12 = \frac{4.76 \cdot 0.166 \cdot 600 \cdot (\frac{7000}{2}) \cdot 2}{60}

5531.12kW = \frac{4.76Bar \cdot 0.166m² \cdot 600mm \cdot (\frac{7000rad/s}{2}) \cdot 2}{60}

5531.12 = \frac{4.76 \cdot 0.166 \cdot 600 \cdot (\frac{7000}{2}) \cdot 2}{60}

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Brake Power using Break Mean Effective Pressure Solution

Follow our step by step solution on how to calculate Brake Power using Break Mean Effective Pressure?

FIRST Step Consider the formula

P 4b = \frac{BMEP \cdot A \cdot L \cdot (\frac{N}{2}) \cdot N c}{60}

Next Step Substitute values of Variables

∴

P 4b = \frac{4.76Bar \cdot 0.166m² \cdot 600mm \cdot (\frac{7000rad/s}{2}) \cdot 2}{60}

Next Step Convert Units

∴

P 4b = \frac{476000Pa \cdot 0.166m² \cdot 0.6m \cdot (\frac{7000rad/s}{2}) \cdot 2}{60}

Next Step Prepare to Evaluate

∴

P 4b = \frac{476000 \cdot 0.166 \cdot 0.6 \cdot (\frac{7000}{2}) \cdot 2}{60}

Next Step Evaluate

∴

P 4b = 5531120W

LAST Step Convert to Output's Unit

∴

P 4b = 5531.12kW

Brake Power using Break Mean Effective Pressure Formula Elements

Variables

Brake 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.

Symbol: P_4b

Measurement: PowerUnit: kW

Note: Value should be greater than 0.

Formulas to find Brake Power of 4 Stroke

Brake Mean Effective Pressure

Brake Mean Effective Pressure is a measure of the average pressure exerted on the piston during the power stroke, and is calculated by dividing net work output of engine by the displacement volume.

Symbol: BMEP

Measurement: PressureUnit: Bar

Note: Value should be greater than 0.

Formulas to find Brake Mean Effective Pressure

Piston Area

Piston Area is defined as the total space occupied by the piston of a diesel engine.

Symbol: A

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Piston Area

Stroke of Piston

Stroke of Piston is the distance that the piston travels between its top dead center (TDC) and bottom dead center (BDC) positions during each cycle of the engine.

Symbol: L

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Stroke of Piston

RPM

RPM is speed in Rotation per Minute.

Symbol: N

Measurement: Angular VelocityUnit: rad/s

Note: Value should be greater than 0.

Formulas to find RPM

Number of Cylinders

Number of Cylinders is the number of cylinders present in the diesel engine.

Symbol: N_c

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Cylinders

Other Formulas to find Brake Power of 4 Stroke

Go Break Power of 4 Stroke Diesel Engine

P 4b = \frac{2 \cdot π \cdot τ \cdot (\frac{N}{2})}{60}

Go Break Power given Mechanical Efficiency and Indicated Power

P 4b = η m \cdot P 4i

Go Break Power given Bore and Stroke

P 4b = \frac{η m \cdot IMEP \cdot A \cdot L \cdot (\frac{N}{2}) \cdot N c}{60}

Other formulas in Diesel Engine Power Plant category

Go Area of Piston given Piston Bore

A = (\frac{π}{4}) \cdot B^{2}

Go Work Done per Cycle

W = IMEP \cdot A \cdot L

Go Indicated Power of 2 Stroke Engine

P i2 = \frac{IMEP \cdot A \cdot L \cdot N \cdot N c}{60}

Go Indicated Power of 4 Stroke Engine

P 4i = \frac{IMEP \cdot A \cdot L \cdot (\frac{N}{2}) \cdot N c}{60}

How to Evaluate Brake Power using Break Mean Effective Pressure?

Brake Power using Break Mean Effective Pressure evaluator uses Brake Power of 4 Stroke = (Brake Mean Effective Pressure*Piston Area*Stroke of Piston*(RPM/2)*Number of Cylinders)/60 to evaluate the Brake Power of 4 Stroke, The Brake Power using Break Mean Effective Pressure formula is defined as the power produced by the engine's combustion process as measured by a device called an indicator. This measurement represents the engine's potential power output and can be used to optimize the engine's performance and fuel efficiency. Brake Power of 4 Stroke is denoted by P_4b symbol.

How to evaluate Brake Power using Break Mean Effective Pressure using this online evaluator? To use this online evaluator for Brake Power using Break Mean Effective Pressure, enter Brake Mean Effective Pressure (BMEP), Piston Area (A), Stroke of Piston (L), RPM (N) & Number of Cylinders (N_c) and hit the calculate button.

FAQs on Brake Power using Break Mean Effective Pressure

What is the formula to find Brake Power using Break Mean Effective Pressure?

The formula of Brake Power using Break Mean Effective Pressure is expressed as Brake Power of 4 Stroke = (Brake Mean Effective Pressure*Piston Area*Stroke of Piston*(RPM/2)*Number of Cylinders)/60. Here is an example- 5.53112 = (476000*0.166*0.6*(7000/2)*2)/60.

How to calculate Brake Power using Break Mean Effective Pressure?

With Brake Mean Effective Pressure (BMEP), Piston Area (A), Stroke of Piston (L), RPM (N) & Number of Cylinders (N_c) we can find Brake Power using Break Mean Effective Pressure using the formula - Brake Power of 4 Stroke = (Brake Mean Effective Pressure*Piston Area*Stroke of Piston*(RPM/2)*Number of Cylinders)/60.

What are the other ways to Calculate Brake Power of 4 Stroke?

Here are the different ways to Calculate Brake Power of 4 Stroke-

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

Can the Brake Power using Break Mean Effective Pressure be negative?

No, the Brake Power using Break Mean Effective Pressure, measured in Power cannot be negative.

Which unit is used to measure Brake Power using Break Mean Effective Pressure?

Brake Power using Break Mean Effective Pressure is usually measured using the Kilowatt[kW] for Power. Watt[kW], Milliwatt[kW], Microwatt[kW] are the few other units in which Brake Power using Break Mean Effective Pressure can be measured.

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Brake Power using Break Mean Effective Pressure Formula

​GoBreak Power of 4 Stroke Diesel Engine Formula

​GoBreak Power given Mechanical Efficiency and Indicated Power Formula

Brake Power using Break Mean Effective Pressure Example

Brake Power using Break Mean Effective Pressure Solution

Brake Power using Break Mean Effective Pressure Formula Elements

Other Formulas to find Brake Power of 4 Stroke

Other formulas in Diesel Engine Power Plant category

How to Evaluate Brake Power using Break Mean Effective Pressure?

FAQs on Brake Power using Break Mean Effective Pressure

Variable Name

GoBreak Power of 4 Stroke Diesel Engine Formula

GoBreak Power given Mechanical Efficiency and Indicated Power Formula