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Indicated Power of Four-stroke Engine Formula

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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. Check FAQs

IP = \frac{k \cdot MEP \cdot L \cdot A c \cdot (N)}{2}

IP - Indicated Power?k - Number of Cylinders?MEP - Mean Effective Pressure?L - Stroke Length?A_c - Area of Cross Section?N - Engine Speed?

Indicated Power of Four-stroke Engine Example

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Here is how the Indicated Power of Four-stroke Engine equation looks like with Values.

Here is how the Indicated Power of Four-stroke Engine equation looks like with Units.

Here is how the Indicated Power of Four-stroke Engine equation looks like.

138.2301 = \frac{5000 \cdot 5 \cdot 8.8 \cdot 30 \cdot (400)}{2}

138.2301W = \frac{5000 \cdot 5Pa \cdot 8.8cm \cdot 30cm² \cdot (400rev/min)}{2}

138.2301 = \frac{5000 \cdot 5 \cdot 8.8 \cdot 30 \cdot (400)}{2}

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Indicated Power of Four-stroke Engine Solution

Follow our step by step solution on how to calculate Indicated Power of Four-stroke Engine?

FIRST Step Consider the formula

IP = \frac{k \cdot MEP \cdot L \cdot A c \cdot (N)}{2}

Next Step Substitute values of Variables

∴

IP = \frac{5000 \cdot 5Pa \cdot 8.8cm \cdot 30cm² \cdot (400rev/min)}{2}

Next Step Convert Units

∴

IP = \frac{5000 \cdot 5Pa \cdot 0.088m \cdot 0.003m² \cdot (41.8879rad/s)}{2}

Next Step Prepare to Evaluate

∴

IP = \frac{5000 \cdot 5 \cdot 0.088 \cdot 0.003 \cdot (41.8879)}{2}

Next Step Evaluate

∴

IP = 138.230076750912W

LAST Step Rounding Answer

∴

IP = 138.2301W

Indicated Power of Four-stroke Engine Formula Elements

Variables

Indicated Power

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.

Symbol: IP

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Indicated Power

Number of Cylinders

Number of Cylinders is the count of the cylinders that are present on the engine.

Symbol: k

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Cylinders

Mean Effective Pressure

Mean Effective Pressure is used to measure the performance of a combustion engine.

Symbol: MEP

Measurement: PressureUnit: Pa

Note: Value should be greater than 0.

Formulas to find Mean Effective Pressure

Stroke Length

Stroke Length is the distance travelled by the piston during each cycle.

Symbol: L

Measurement: LengthUnit: cm

Note: Value should be greater than 0.

Formulas to find Stroke Length

Area of Cross Section

Area of Cross Section is the enclosed surface area, product of length and breadth.

Symbol: A_c

Measurement: AreaUnit: cm²

Note: Value should be greater than 0.

Formulas to find Area of Cross Section

Engine Speed

Engine Speed is the speed at which the crankshaft of the engine rotates.

Symbol: N

Measurement: Angular VelocityUnit: rev/min

Note: Value should be greater than 0.

Formulas to find Engine Speed

Other formulas in For 4 Stroke Engine category

Go Brake Mean Effective Pressure of 4S Engines given Brake power

P mb = \frac{2 \cdot BP}{L \cdot A c \cdot (N)}

Go Horsepower of engine

HP = \frac{T \cdot E rpm}{5252}

Go Bmep given engine torque

P mb = \frac{2 \cdot π \cdot T \cdot N}{s p}

Go Combustion efficiency

η c = \frac{Q in}{m f \cdot Q HV}

How to Evaluate Indicated Power of Four-stroke Engine?

Indicated Power of Four-stroke Engine evaluator uses Indicated Power = (Number of Cylinders*Mean Effective Pressure*Stroke Length*Area of Cross Section*(Engine Speed))/(2) to evaluate the Indicated Power, The Indicated Power of Four-stroke Engine formula is defined as multiplication of actual mean effective pressure (in N/m^2), stroke length (in m), area of cross section of cylinder (m^2), engine speed (RPM), and no. of cylinders divided by the 60000 * 2. Indicated Power is denoted by IP symbol.

How to evaluate Indicated Power of Four-stroke Engine using this online evaluator? To use this online evaluator for Indicated Power of Four-stroke Engine, enter Number of Cylinders (k), Mean Effective Pressure (MEP), Stroke Length (L), Area of Cross Section (A_c) & Engine Speed (N) and hit the calculate button.

FAQs on Indicated Power of Four-stroke Engine

What is the formula to find Indicated Power of Four-stroke Engine?

The formula of Indicated Power of Four-stroke Engine is expressed as Indicated Power = (Number of Cylinders*Mean Effective Pressure*Stroke Length*Area of Cross Section*(Engine Speed))/(2). Here is an example- 1382.301 = (5000*5*0.088*0.003*(41.8879020457308))/(2).

How to calculate Indicated Power of Four-stroke Engine?

With Number of Cylinders (k), Mean Effective Pressure (MEP), Stroke Length (L), Area of Cross Section (A_c) & Engine Speed (N) we can find Indicated Power of Four-stroke Engine using the formula - Indicated Power = (Number of Cylinders*Mean Effective Pressure*Stroke Length*Area of Cross Section*(Engine Speed))/(2).

Can the Indicated Power of Four-stroke Engine be negative?

No, the Indicated Power of Four-stroke Engine, measured in Power cannot be negative.

Which unit is used to measure Indicated Power of Four-stroke Engine?

Indicated Power of Four-stroke Engine is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Indicated Power of Four-stroke Engine can be measured.

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Indicated Power of Four-stroke Engine Formula

Indicated Power of Four-stroke Engine Example

Indicated Power of Four-stroke Engine Solution

Indicated Power of Four-stroke Engine Formula Elements

Other formulas in For 4 Stroke Engine category

How to Evaluate Indicated Power of Four-stroke Engine?

FAQs on Indicated Power of Four-stroke Engine

Variable Name