Volumetric efficiency of IC engine Calculator

✖Air Mass Flow Rate is the mass of intake air that is flowing per unit time.ⓘ Air Mass Flow Rate [m_af]			+10% -10%
✖Crankshaft Revolutions per Power Stroke is defined as the number of crankshaft rotations when the IC engine takes one complete cycle.ⓘ Crankshaft Revolutions per Power Stroke [n_R]			+10% -10%
✖Air Density at Intake is defined as the density of air recorded at intake manifold at atmospheric pressure and room temperature.ⓘ Air Density at Intake [ρ_a]			+10% -10%
✖Theoretical Volume of Engine is defined as the total volume of the combustion chamber including swept volume and clearance volume.ⓘ Theoretical Volume of Engine [V_te]			+10% -10%
✖Engine Speed is the speed at which the crankshaft of the engine rotates.ⓘ Engine Speed [N]			+10% -10%

✖Volumetric Efficiency of IC Engine is defined as the ratio of mass density of air-fuel mixture drawn into the cylinder to the mass density of the same volume of air in the intake manifold.ⓘ Volumetric efficiency of IC engine [η_v]

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Volumetric efficiency of IC engine Solution

STEP 0: Pre-Calculation Summary

Formula Used

Volumetric Efficiency of IC Engine = (Air Mass Flow Rate*Crankshaft Revolutions per Power Stroke)/(Air Density at Intake*Theoretical Volume of Engine*Engine Speed)
η_v = (m_af*n_R)/(ρ_a*V_te*N)
This formula uses 6 Variables

Variables Used

Volumetric Efficiency of IC Engine - Volumetric Efficiency of IC Engine is defined as the ratio of mass density of air-fuel mixture drawn into the cylinder to the mass density of the same volume of air in the intake manifold.
Air Mass Flow Rate - (Measured in Kilogram per Second) - Air Mass Flow Rate is the mass of intake air that is flowing per unit time.
Crankshaft Revolutions per Power Stroke - Crankshaft Revolutions per Power Stroke is defined as the number of crankshaft rotations when the IC engine takes one complete cycle.
Air Density at Intake - (Measured in Kilogram per Cubic Meter) - Air Density at Intake is defined as the density of air recorded at intake manifold at atmospheric pressure and room temperature.
Theoretical Volume of Engine - (Measured in Cubic Meter) - Theoretical Volume of Engine is defined as the total volume of the combustion chamber including swept volume and clearance volume.
Engine Speed - (Measured in Radian per Second) - Engine Speed is the speed at which the crankshaft of the engine rotates.

STEP 1: Convert Input(s) to Base Unit

Air Mass Flow Rate: 0.9 Kilogram per Second --> 0.9 Kilogram per Second No Conversion Required
Crankshaft Revolutions per Power Stroke: 2 --> No Conversion Required
Air Density at Intake: 57.63 Kilogram per Cubic Meter --> 57.63 Kilogram per Cubic Meter No Conversion Required
Theoretical Volume of Engine: 0.0038 Cubic Meter --> 0.0038 Cubic Meter No Conversion Required
Engine Speed: 400 Revolution per Minute --> 41.8879020457308 Radian per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_v = (m_af*n_R)/(ρ_a*V_te*N) --> (0.9*2)/(57.63*0.0038*41.8879020457308)

Evaluating ... ...

η_v = 0.196223798994493

STEP 3: Convert Result to Output's Unit

0.196223798994493 --> No Conversion Required

FINAL ANSWER

0.196223798994493 ≈ 0.196224 <-- Volumetric Efficiency of IC Engine

(Calculation completed in 00.020 seconds)

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Created by Syed Adnan

Ramaiah University of Applied Sciences (RUAS), bangalore

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Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

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Volumetric efficiency of IC engine Formula

LaTeX Go

Volumetric Efficiency of IC Engine = (Air Mass Flow Rate*Crankshaft Revolutions per Power Stroke)/(Air Density at Intake*Theoretical Volume of Engine*Engine Speed)
η_v = (m_af*n_R)/(ρ_a*V_te*N)

What is volumetric efficiency of IC engine?

Volumetric efficiency of IC engine is defined as the ratio of the mass density of the air-fuel mixture drawn into the cylinder at atmospheric pressure (during the intake stroke) to the mass density of the same volume of air in the intake manifold. By volumetric efficiency we measure the capacity of the engine to fill the available geometric volume of the engine with air.

How to Calculate Volumetric efficiency of IC engine?

Volumetric efficiency of IC engine calculator uses Volumetric Efficiency of IC Engine = (Air Mass Flow Rate*Crankshaft Revolutions per Power Stroke)/(Air Density at Intake*Theoretical Volume of Engine*Engine Speed) to calculate the Volumetric Efficiency of IC Engine, The Volumetric efficiency of IC engine formula is defined as the ratio of the mass density of the air-fuel mixture drawn into the cylinder at atmospheric pressure (during the intake stroke) to the mass density of the same volume of air in the intake manifold. Volumetric Efficiency of IC Engine is denoted by η_v symbol.

How to calculate Volumetric efficiency of IC engine using this online calculator? To use this online calculator for Volumetric efficiency of IC engine, enter Air Mass Flow Rate (m_af), Crankshaft Revolutions per Power Stroke (n_R), Air Density at Intake (ρ_a), Theoretical Volume of Engine (V_te) & Engine Speed (N) and hit the calculate button. Here is how the Volumetric efficiency of IC engine calculation can be explained with given input values -> 1.962238 = (0.9*2)/(57.63*0.0038*41.8879020457308).

FAQ

What is Volumetric efficiency of IC engine?

The Volumetric efficiency of IC engine formula is defined as the ratio of the mass density of the air-fuel mixture drawn into the cylinder at atmospheric pressure (during the intake stroke) to the mass density of the same volume of air in the intake manifold and is represented as η_v = (m_af*n_R)/(ρ_a*V_te*N) or Volumetric Efficiency of IC Engine = (Air Mass Flow Rate*Crankshaft Revolutions per Power Stroke)/(Air Density at Intake*Theoretical Volume of Engine*Engine Speed). Air Mass Flow Rate is the mass of intake air that is flowing per unit time, Crankshaft Revolutions per Power Stroke is defined as the number of crankshaft rotations when the IC engine takes one complete cycle, Air Density at Intake is defined as the density of air recorded at intake manifold at atmospheric pressure and room temperature, Theoretical Volume of Engine is defined as the total volume of the combustion chamber including swept volume and clearance volume & Engine Speed is the speed at which the crankshaft of the engine rotates.

How to calculate Volumetric efficiency of IC engine?

The Volumetric efficiency of IC engine formula is defined as the ratio of the mass density of the air-fuel mixture drawn into the cylinder at atmospheric pressure (during the intake stroke) to the mass density of the same volume of air in the intake manifold is calculated using Volumetric Efficiency of IC Engine = (Air Mass Flow Rate*Crankshaft Revolutions per Power Stroke)/(Air Density at Intake*Theoretical Volume of Engine*Engine Speed). To calculate Volumetric efficiency of IC engine, you need Air Mass Flow Rate (m_af), Crankshaft Revolutions per Power Stroke (n_R), Air Density at Intake (ρ_a), Theoretical Volume of Engine (V_te) & Engine Speed (N). With our tool, you need to enter the respective value for Air Mass Flow Rate, Crankshaft Revolutions per Power Stroke, Air Density at Intake, Theoretical Volume of Engine & Engine 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 Volumetric Efficiency of IC Engine?

In this formula, Volumetric Efficiency of IC Engine uses Air Mass Flow Rate, Crankshaft Revolutions per Power Stroke, Air Density at Intake, Theoretical Volume of Engine & Engine Speed. We can use 1 other way(s) to calculate the same, which is/are as follows -

Volumetric Efficiency of IC Engine = Actual Volume of Intake Air/Theoretical Volume of Engine

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