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Air Pressure during Testing Formula

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Air Pressure on Wall is the pressure exerted by air on the walls in which it is confined. Check FAQs

ρ = \frac{V \cdot H sp}{PN \cdot A \cdot t p}

ρ - Air Pressure on Wall?V - Volume of Air Flow Through Specimen?H_sp - Specimen Height?PN - Permeability Number?A - Cross-Sectional Area of Specimen?t_p - Time?

Air Pressure during Testing Example

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Here is how the Air Pressure during Testing equation looks like with Values.

Here is how the Air Pressure during Testing equation looks like with Units.

Here is how the Air Pressure during Testing equation looks like.

0.0385 = \frac{0.002 \cdot 5}{4.36 \cdot 0.002 \cdot 3}

0.0385kgf/m² = \frac{0.002m³ \cdot 5m}{4.36H/m \cdot 0.002m² \cdot 3s}

0.0385 = \frac{0.002 \cdot 5}{4.36 \cdot 0.002 \cdot 3}

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Air Pressure during Testing Solution

Follow our step by step solution on how to calculate Air Pressure during Testing?

FIRST Step Consider the formula

ρ = \frac{V \cdot H sp}{PN \cdot A \cdot t p}

Next Step Substitute values of Variables

∴

ρ = \frac{0.002m³ \cdot 5m}{4.36H/m \cdot 0.002m² \cdot 3s}

Next Step Prepare to Evaluate

∴

ρ = \frac{0.002 \cdot 5}{4.36 \cdot 0.002 \cdot 3}

Next Step Evaluate

∴

ρ = 0.377171185931816Pa

Next Step Convert to Output's Unit

∴

ρ = 0.0384607573362813kgf/m²

LAST Step Rounding Answer

∴

ρ = 0.0385kgf/m²

Air Pressure during Testing Formula Elements

Variables

Air Pressure on Wall

Air Pressure on Wall is the pressure exerted by air on the walls in which it is confined.

Symbol: ρ

Measurement: PressureUnit: kgf/m²

Note: Value should be greater than 0.

Formulas to find Air Pressure on Wall

Volume of Air Flow Through Specimen

Volume of Air Flow Through Specimen is the amount of air which passes through the specimen during testing.

Symbol: V

Measurement: VolumeUnit: m³

Note: Value should be greater than 0.

Formulas to find Volume of Air Flow Through Specimen

Specimen Height

Specimen Height is the vertical dimension of a sample or test piece extracted from a casting.

Symbol: H_sp

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Specimen Height

Permeability Number

Permeability Number is the rate of flow of air passing through a standard specimen under a standard pressure.

Symbol: PN

Measurement: Magnetic PermeabilityUnit: H/m

Note: Value should be greater than 0.

Formulas to find Permeability Number

Cross-Sectional Area of Specimen

Cross-Sectional Area of Specimen is the measure of the surface area perpendicular to the direction of an applied force or load, often used in materials testing to calculate stress and strain.

Symbol: A

Measurement: AreaUnit: m²

Note: Value should be greater than 0.

Formulas to find Cross-Sectional Area of Specimen

Time

Time is various stages and durations throughout the casting process.

Symbol: t_p

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Time

Other formulas in Permeability Number category

Go Cross-Sectional Area of Specimen

A = \frac{V \cdot H sp}{PN \cdot ρ \cdot t p}

Go Time Taken during Testing

t p = \frac{V \cdot H sp}{PN \cdot ρ \cdot A}

Go Permeability Number or Standard Specimen

PN = \frac{501.28}{p c \cdot t p}

Go Time Taken in Standard Specimen Testing

t p = \frac{501.28}{PN \cdot p c}

How to Evaluate Air Pressure during Testing?

Air Pressure during Testing evaluator uses Air Pressure on Wall = (Volume of Air Flow Through Specimen*Specimen Height)/(Permeability Number*Cross-Sectional Area of Specimen*Time) to evaluate the Air Pressure on Wall, Air Pressure during Testing is the pressure exerted on a casting during testing, taking into account the volume of air in the casting, the height of the specimen, the permeability number of the casting material, the cross-sectional area of the casting, and the time permeability of the casting material. Air Pressure on Wall is denoted by ρ symbol.

How to evaluate Air Pressure during Testing using this online evaluator? To use this online evaluator for Air Pressure during Testing, enter Volume of Air Flow Through Specimen (V), Specimen Height (H_sp), Permeability Number (PN), Cross-Sectional Area of Specimen (A) & Time (t_p) and hit the calculate button.

FAQs on Air Pressure during Testing

What is the formula to find Air Pressure during Testing?

The formula of Air Pressure during Testing is expressed as Air Pressure on Wall = (Volume of Air Flow Through Specimen*Specimen Height)/(Permeability Number*Cross-Sectional Area of Specimen*Time). Here is an example- 0.003922 = (0.002*5)/(4.36*0.002027*3).

How to calculate Air Pressure during Testing?

With Volume of Air Flow Through Specimen (V), Specimen Height (H_sp), Permeability Number (PN), Cross-Sectional Area of Specimen (A) & Time (t_p) we can find Air Pressure during Testing using the formula - Air Pressure on Wall = (Volume of Air Flow Through Specimen*Specimen Height)/(Permeability Number*Cross-Sectional Area of Specimen*Time).

Can the Air Pressure during Testing be negative?

No, the Air Pressure during Testing, measured in Pressure cannot be negative.

Which unit is used to measure Air Pressure during Testing?

Air Pressure during Testing is usually measured using the Kilogram-Force per Square Meter[kgf/m²] for Pressure. Pascal[kgf/m²], Kilopascal[kgf/m²], Bar[kgf/m²] are the few other units in which Air Pressure during Testing can be measured.

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Air Pressure during Testing Formula

Air Pressure during Testing Example

Air Pressure during Testing Solution

Air Pressure during Testing Formula Elements

Other formulas in Permeability Number category

How to Evaluate Air Pressure during Testing?

FAQs on Air Pressure during Testing

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