Bmep given engine torque Calculator

✖Engine Torque is defined as a rotating force produced by a engine's crankshaft due to power developed during power stroke in IC engine.ⓘ Engine Torque [T]			+10% -10%
✖Engine Speed is the speed at which the crankshaft of the engine rotates.ⓘ Engine Speed [N]			+10% -10%
✖Mean Piston Speed is the average speed of the piston over one engine revolution.ⓘ Mean Piston Speed [s_p]			+10% -10%

✖Brake Mean Effective Pressure is a calculation of the engine cylinder pressure that would give the measured brake horsepower.ⓘ Bmep given engine torque [P_mb]

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Bmep given engine torque Solution

STEP 0: Pre-Calculation Summary

Formula Used

Brake Mean Effective Pressure = (2*pi*Engine Torque*Engine Speed)/Mean Piston Speed
P_mb = (2*pi*T*N)/s_p
This formula uses 1 Constants, 4 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Brake Mean Effective Pressure - (Measured in Pascal) - Brake Mean Effective Pressure is a calculation of the engine cylinder pressure that would give the measured brake horsepower.
Engine Torque - (Measured in Newton Meter) - Engine Torque is defined as a rotating force produced by a engine's crankshaft due to power developed during power stroke in IC engine.
Engine Speed - (Measured in Radian per Second) - Engine Speed is the speed at which the crankshaft of the engine rotates.
Mean Piston Speed - (Measured in Meter per Second) - Mean Piston Speed is the average speed of the piston over one engine revolution.

STEP 1: Convert Input(s) to Base Unit

Engine Torque: 60 Newton Millimeter --> 0.06 Newton Meter (Check conversion here)
Engine Speed: 400 Revolution per Minute --> 41.8879020457308 Radian per Second (Check conversion here)
Mean Piston Speed: 0.045 Meter per Second --> 0.045 Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_mb = (2*pi*T*N)/s_p --> (2*pi*0.06*41.8879020457308)/0.045

Evaluating ... ...

P_mb = 350.919267576418

STEP 3: Convert Result to Output's Unit

350.919267576418 Pascal --> No Conversion Required

FINAL ANSWER

350.919267576418 ≈ 350.9193 Pascal <-- Brake Mean Effective Pressure

(Calculation completed in 00.020 seconds)

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Created by Syed Adnan

Ramaiah University of Applied Sciences (RUAS), bangalore

Syed Adnan has created this Calculator and 200+ more calculators!

Verified by Kartikay Pandit

National Institute Of Technology (NIT), Hamirpur

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< For 4 Stroke Engine Calculators

Indicated Power of Four-stroke Engine

LaTeX Go Indicated Power = (Number of Cylinders*Mean Effective Pressure*Stroke Length*Area of Cross Section*(Engine Speed))/(2)

Brake Mean Effective Pressure of 4S Engines given Brake power

LaTeX Go Brake Mean Effective Pressure = (2*Brake Power)/(Stroke Length*Area of Cross Section*(Engine Speed))

Bmep given engine torque

LaTeX Go Brake Mean Effective Pressure = (2*pi*Engine Torque*Engine Speed)/Mean Piston Speed

Horsepower of engine

LaTeX Go Horsepower of Engine = (Engine Torque*Engine RPM)/5252

Bmep given engine torque Formula

LaTeX Go

Brake Mean Effective Pressure = (2*pi*Engine Torque*Engine Speed)/Mean Piston Speed
P_mb = (2*pi*T*N)/s_p

What is the brake mean effective pressure?

Bmep is the average (mean) pressure which, if imposed on the pistons uniformly from the top to the bottom of each power stroke, would produce the measured (brake) power output. Brake Mean Effective Pressure (BMEP) is another very effective yardstick for comparing the performance of an engine of a given type to another of the same type, and for evaluating the reasonableness of performance claims or requirements.

How to Calculate Bmep given engine torque?

Bmep given engine torque calculator uses Brake Mean Effective Pressure = (2*pi*Engine Torque*Engine Speed)/Mean Piston Speed to calculate the Brake Mean Effective Pressure, The Bmep given engine torque formula is defined as the average pressure which, if imposed on the pistons uniformly from the top to the bottom of each power stroke, would produce the measured power output. Brake Mean Effective Pressure is denoted by P_mb symbol.

How to calculate Bmep given engine torque using this online calculator? To use this online calculator for Bmep given engine torque, enter Engine Torque (T), Engine Speed (N) & Mean Piston Speed (s_p) and hit the calculate button. Here is how the Bmep given engine torque calculation can be explained with given input values -> 3.509193 = (2*pi*0.06*41.8879020457308)/0.045.

FAQ

What is Bmep given engine torque?

The Bmep given engine torque formula is defined as the average pressure which, if imposed on the pistons uniformly from the top to the bottom of each power stroke, would produce the measured power output and is represented as P_mb = (2*pi*T*N)/s_p or Brake Mean Effective Pressure = (2*pi*Engine Torque*Engine Speed)/Mean Piston Speed. Engine Torque is defined as a rotating force produced by a engine's crankshaft due to power developed during power stroke in IC engine, Engine Speed is the speed at which the crankshaft of the engine rotates & Mean Piston Speed is the average speed of the piston over one engine revolution.

How to calculate Bmep given engine torque?

The Bmep given engine torque formula is defined as the average pressure which, if imposed on the pistons uniformly from the top to the bottom of each power stroke, would produce the measured power output is calculated using Brake Mean Effective Pressure = (2*pi*Engine Torque*Engine Speed)/Mean Piston Speed. To calculate Bmep given engine torque, you need Engine Torque (T), Engine Speed (N) & Mean Piston Speed (s_p). With our tool, you need to enter the respective value for Engine Torque, Engine Speed & Mean Piston Speed 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 Mean Effective Pressure?

In this formula, Brake Mean Effective Pressure uses Engine Torque, Engine Speed & Mean Piston Speed. We can use 1 other way(s) to calculate the same, which is/are as follows -

Brake Mean Effective Pressure = (2*Brake Power)/(Stroke Length*Area of Cross Section*(Engine Speed))

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