Volumetric Efficiency for 4S engines 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%
✖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%
✖Piston Swept Volume is defined as the displacement of one cylinder. It is the volume between top dead center (TDC) and bottom dead center (BDC).ⓘ Piston Swept Volume [V_s]			+10% -10%
✖Engine Speed is the speed at which the crankshaft of the engine rotates.ⓘ Engine Speed [N]			+10% -10%

✖Volumetric Efficiency (in %) is the ratio of the volume of air/charge drawn into the cylinder(s) during the suction stroke to the total displacement of all the cylinder(s) at the atmospheric pressure.ⓘ Volumetric Efficiency for 4S engines [VE]

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Volumetric Efficiency for 4S engines Solution

STEP 0: Pre-Calculation Summary

Formula Used

Volumetric Efficiency = ((2*Air Mass Flow Rate)/(Air Density at Intake*Piston Swept Volume*(Engine Speed)))*100
VE = ((2*m_af)/(ρ_a*V_s*(N)))*100
This formula uses 5 Variables

Variables Used

Volumetric Efficiency - Volumetric Efficiency (in %) is the ratio of the volume of air/charge drawn into the cylinder(s) during the suction stroke to the total displacement of all the cylinder(s) at the atmospheric pressure.
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.
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.
Piston Swept Volume - (Measured in Cubic Meter) - Piston Swept Volume is defined as the displacement of one cylinder. It is the volume between top dead center (TDC) and bottom dead center (BDC).
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
Air Density at Intake: 57.63 Kilogram per Cubic Meter --> 57.63 Kilogram per Cubic Meter No Conversion Required
Piston Swept Volume: 0.002 Cubic Meter --> 0.002 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

VE = ((2*m_af)/(ρ_a*V_s*(N)))*100 --> ((2*0.9)/(57.63*0.002*(41.8879020457308)))*100

Evaluating ... ...

VE = 37.2825218089537

STEP 3: Convert Result to Output's Unit

37.2825218089537 --> No Conversion Required

FINAL ANSWER

37.2825218089537 ≈ 37.28252 <-- Volumetric Efficiency

(Calculation completed in 00.004 seconds)

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Created by Aditya Prakash Gautam

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

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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

Volumetric Efficiency for 4S engines Formula

LaTeX Go

Volumetric Efficiency = ((2*Air Mass Flow Rate)/(Air Density at Intake*Piston Swept Volume*(Engine Speed)))*100
VE = ((2*m_af)/(ρ_a*V_s*(N)))*100

What is supercharged or turbocharged engine ?

The Turbocharged or Supercharged engines have more than 100% Volumetric Efficiency. It has greater volumetric efficiency than a Naturally-Aspirated (NA) engine which does not use the forced induction method. This is because the turbocharger forces the air into the cylinder at more than the atmospheric pressure. However, the volumetric efficiency of a turbo/supercharged engine depends upon the temperature and pressure in the intake manifold.

What is Volumetric efficiency in IC engine ?

Volumetric efficiency (VE) in internal combustion engine engineering 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.

How to Calculate Volumetric Efficiency for 4S engines?

Volumetric Efficiency for 4S engines calculator uses Volumetric Efficiency = ((2*Air Mass Flow Rate)/(Air Density at Intake*Piston Swept Volume*(Engine Speed)))*100 to calculate the Volumetric Efficiency, The Volumetric Efficiency for 4S engines formula is defined as the volume flow rate of air into the intake system divided by the rate at which the volume is displaced by the system, i.e. swept volume. Volumetric Efficiency is denoted by VE symbol.

How to calculate Volumetric Efficiency for 4S engines using this online calculator? To use this online calculator for Volumetric Efficiency for 4S engines, enter Air Mass Flow Rate (m_af), Air Density at Intake (ρ_a), Piston Swept Volume (V_s) & Engine Speed (N) and hit the calculate button. Here is how the Volumetric Efficiency for 4S engines calculation can be explained with given input values -> 37.28252 = ((2*0.9)/(57.63*0.002*(41.8879020457308)))*100.

FAQ

What is Volumetric Efficiency for 4S engines?

The Volumetric Efficiency for 4S engines formula is defined as the volume flow rate of air into the intake system divided by the rate at which the volume is displaced by the system, i.e. swept volume and is represented as VE = ((2*m_af)/(ρ_a*V_s*(N)))*100 or Volumetric Efficiency = ((2*Air Mass Flow Rate)/(Air Density at Intake*Piston Swept Volume*(Engine Speed)))*100. Air Mass Flow Rate is the mass of intake air that is flowing per unit time, Air Density at Intake is defined as the density of air recorded at intake manifold at atmospheric pressure and room temperature, Piston Swept Volume is defined as the displacement of one cylinder. It is the volume between top dead center (TDC) and bottom dead center (BDC) & Engine Speed is the speed at which the crankshaft of the engine rotates.

How to calculate Volumetric Efficiency for 4S engines?

The Volumetric Efficiency for 4S engines formula is defined as the volume flow rate of air into the intake system divided by the rate at which the volume is displaced by the system, i.e. swept volume is calculated using Volumetric Efficiency = ((2*Air Mass Flow Rate)/(Air Density at Intake*Piston Swept Volume*(Engine Speed)))*100. To calculate Volumetric Efficiency for 4S engines, you need Air Mass Flow Rate (m_af), Air Density at Intake (ρ_a), Piston Swept Volume (V_s) & Engine Speed (N). With our tool, you need to enter the respective value for Air Mass Flow Rate, Air Density at Intake, Piston Swept Volume & Engine Speed 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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