✖Brake Power is the power available at the crankshaft.ⓘ Brake Power [BP]			+10% -10%
✖Mechanical Efficiency (in %) is the ratio of the power delivered by a mechanical system to the power supplied to it.ⓘ Mechanical Efficiency [η_m]			+10% -10%

✖Indicated power is the total power produced due to combustion of fuel within the IC engine's cylinder in one complete cycle neglecting any losses.ⓘ Indicated Power given Mechanical Efficiency [IP]

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Formula

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Indicated Power given Mechanical Efficiency

Formula

`"IP" = "BP"/("η"_{"m"}/100)`

Example

`"0.916667kW"="0.55kW"/("60"/100)`

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Indicated Power given Mechanical Efficiency Solution

STEP 0: Pre-Calculation Summary

Formula Used

Indicated Power = Brake Power/(Mechanical Efficiency/100)
IP = BP/(η_m/100)
This formula uses 3 Variables

Variables Used

Indicated Power - (Measured in Watt) - Indicated power is the total power produced due to combustion of fuel within the IC engine's cylinder in one complete cycle neglecting any losses.
Brake Power - (Measured in Watt) - Brake Power is the power available at the crankshaft.
Mechanical Efficiency - Mechanical Efficiency (in %) is the ratio of the power delivered by a mechanical system to the power supplied to it.

STEP 1: Convert Input(s) to Base Unit

Brake Power: 0.55 Kilowatt --> 550 Watt (Check conversion here)
Mechanical Efficiency: 60 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

IP = BP/(η_m/100) --> 550/(60/100)

Evaluating ... ...

IP = 916.666666666667

STEP 3: Convert Result to Output's Unit

916.666666666667 Watt -->0.916666666666667 Kilowatt (Check conversion here)

FINAL ANSWER

0.916666666666667 ≈ 0.916667 Kilowatt <-- Indicated Power

(Calculation completed in 00.004 seconds)

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Home » Physics » IC Engine » Engine Performance Parameters » Mechanical » Engine Dynamics » Indicated Power given Mechanical Efficiency

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Created by Aditya Prakash Gautam

Indian Institute of Technology (IIT (ISM) ), Dhanbad, Jharkhand

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Indicated Power given Mechanical Efficiency Formula

Indicated Power = Brake Power/(Mechanical Efficiency/100)
IP = BP/(η_m/100)

What factors affect mechanical efficiency ?

Mechanical efficiency is the ratio of brake power (delivered power) to the indicated power (power provided to the piston). Factors affecting mechanical efficiency includes lubrication (tribology), vibration, lost motion, dry friction, fluid viscosity, heat insulation, cooling measures, corrosion.

How to Calculate Indicated Power given Mechanical Efficiency?

Indicated Power given Mechanical Efficiency calculator uses Indicated Power = Brake Power/(Mechanical Efficiency/100) to calculate the Indicated Power, The Indicated Power given Mechanical Efficiency formula is defined as division of brake power to the mechanical efficiency of an IC engine. Indicated Power is denoted by IP symbol.

How to calculate Indicated Power given Mechanical Efficiency using this online calculator? To use this online calculator for Indicated Power given Mechanical Efficiency, enter Brake Power (BP) & Mechanical Efficiency (η_m) and hit the calculate button. Here is how the Indicated Power given Mechanical Efficiency calculation can be explained with given input values -> 0.000917 = 550/(60/100).

FAQ

What is Indicated Power given Mechanical Efficiency?

The Indicated Power given Mechanical Efficiency formula is defined as division of brake power to the mechanical efficiency of an IC engine and is represented as IP = BP/(η_m/100) or Indicated Power = Brake Power/(Mechanical Efficiency/100). Brake Power is the power available at the crankshaft & Mechanical Efficiency (in %) is the ratio of the power delivered by a mechanical system to the power supplied to it.

How to calculate Indicated Power given Mechanical Efficiency?

The Indicated Power given Mechanical Efficiency formula is defined as division of brake power to the mechanical efficiency of an IC engine is calculated using Indicated Power = Brake Power/(Mechanical Efficiency/100). To calculate Indicated Power given Mechanical Efficiency, you need Brake Power (BP) & Mechanical Efficiency (η_m). With our tool, you need to enter the respective value for Brake Power & Mechanical Efficiency and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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