Air Pressure during Testing Calculator

✖Volume of Air Flow through Specimen is the amount of air which passes through the specimen during testing.ⓘ Volume of Air Flow through Specimen [V]			+10% -10%
✖Specimen Height is the height of specimen defined in question.ⓘ Specimen Height [h_sp]			+10% -10%
✖Permeability Number is the rate of flow of air passing through a standard specimen under a standard pressure.ⓘ Permeability Number [PN]			+10% -10%
✖Cross-sectional area of specimen is the area exposed when specimen is cut transversely.ⓘ Cross-sectional area of specimen [A]			+10% -10%
✖Time is the fundamental dimension of measurement.ⓘ Time [t_p]			+10% -10%

✖Air pressure on wall is the pressure exerted by air on the walls in which it is confined.ⓘ Air Pressure during Testing [ρ]

⎘ Copy

👎

Formula

✖

Air Pressure during Testing

Formula

`"ρ" = ("V"*"h"_{"sp"})/("PN"*"A"*"t"_{"p"})`

Example

`"0.038461kgf/m²"=("0.002m³"*"5m")/("4.36H/m"*"0.002027m²"*"3s")`

Calculator

LaTeX

Reset

👍

Download Permeability Number Formulas PDF PDF Image

Air Pressure during Testing Solution

STEP 0: Pre-Calculation Summary

Formula Used

Air pressure on wall = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Cross-sectional area of specimen*Time)
ρ = (V*h_sp)/(PN*A*t_p)
This formula uses 6 Variables

Variables Used

Air pressure on wall - (Measured in Pascal) - Air pressure on wall is the pressure exerted by air on the walls in which it is confined.
Volume of Air Flow through Specimen - (Measured in Cubic Meter) - Volume of Air Flow through Specimen is the amount of air which passes through the specimen during testing.
Specimen Height - (Measured in Meter) - Specimen Height is the height of specimen defined in question.
Permeability Number - (Measured in Henry per Meter) - Permeability Number is the rate of flow of air passing through a standard specimen under a standard pressure.
Cross-sectional area of specimen - (Measured in Square Meter) - Cross-sectional area of specimen is the area exposed when specimen is cut transversely.
Time - (Measured in Second) - Time is the fundamental dimension of measurement.

STEP 1: Convert Input(s) to Base Unit

Volume of Air Flow through Specimen: 0.002 Cubic Meter --> 0.002 Cubic Meter No Conversion Required
Specimen Height: 5 Meter --> 5 Meter No Conversion Required
Permeability Number: 4.36 Henry per Meter --> 4.36 Henry per Meter No Conversion Required
Cross-sectional area of specimen: 0.002027 Square Meter --> 0.002027 Square Meter No Conversion Required
Time: 3 Second --> 3 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ρ = (V*h_sp)/(PN*A*t_p) --> (0.002*5)/(4.36*0.002027*3)

Evaluating ... ...

ρ = 0.377171185931816

STEP 3: Convert Result to Output's Unit

0.377171185931816 Pascal -->0.0384607573362813 Kilogram-Force per Square Meter (Check conversion here)

FINAL ANSWER

0.0384607573362813 ≈ 0.038461 Kilogram-Force per Square Meter <-- Air pressure on wall

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Production Engineering » Casting (Foundry) » Permeability Number » Air Pressure during Testing

Credits

Created by Rajat Vishwakarma

University Institute of Technology RGPV (UIT - RGPV), Bhopal

Rajat Vishwakarma has created this Calculator and 400+ more calculators!

Verified by Nishan Poojary

Shri Madhwa Vadiraja Institute of Technology and Management (SMVITM), Udupi

Nishan Poojary has verified this Calculator and 400+ more calculators!

< 11 Permeability Number Calculators

Cross-Sectional Area of Specimen

Go Cross-sectional area of specimen = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Air pressure on wall*Time)

Air Pressure during Testing

Go Air pressure on wall = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Cross-sectional area of specimen*Time)

Time Taken during Testing

Go Time = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Air pressure on wall*Cross-sectional area of specimen)

Volume of Air Passed through Specimen

Go Volume of Air Flow through Specimen = (Permeability Number*Air pressure on wall*Cross-sectional area of specimen*Time)/Specimen Height

Height of Specimen

Go Specimen Height = (Permeability Number*Air pressure on wall*Cross-sectional area of specimen*Time)/Volume of Air Flow through Specimen

Permeability Number

Go Permeability Number = (Volume of air*Height of Specimen)/(Air pressure on wall*Cross-sectional area of specimen*Time)

Grain Fineness Number

Go Grain Fineness Number = Sum of Product of Factor and Grams/Total Mass of Sand

Pressure during Testing or Standard Specimen

Go Pressure in Casting = 501.28/(Permeability Number*Time)

Permeability Number or Standard Specimen

Go Permeability Number = 501.28/(Pressure in Casting*Time)

Time Taken in Standard Specimen Testing

Go Time = 501.28/(Permeability Number*Pressure in Casting)

Ranginess Factor

Go Ranginess Factor = Modulus of Cube/Modulus of Casting

Air Pressure during Testing Formula

Air pressure on wall = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Cross-sectional area of specimen*Time)
ρ = (V*h_sp)/(PN*A*t_p)

What is permeability number?

The Permeability Number the rate of flow of air passing through a standard specimen under a standard pressure.
The standard permeability test is to measure time taken by a 2000 cub cm of air at a pressure typically of 980 Pa (10 g/cm2), to pass through a standard sand specimen confined in a specimen tube. The standard specimen size is 50.8 mm in diameter and a length of 50.8 mm.

How to Calculate Air Pressure during Testing?

Air Pressure during Testing calculator uses Air pressure on wall = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Cross-sectional area of specimen*Time) to calculate the Air pressure on wall, The Air Pressure during testing is the pressure exerted by air on specimen during standard testing of specimen. Air pressure on wall is denoted by ρ symbol.

How to calculate Air Pressure during Testing using this online calculator? To use this online calculator 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. Here is how the Air Pressure during Testing calculation can be explained with given input values -> 0.003922 = (0.002*5)/(4.36*0.002027*3).

FAQ

What is Air Pressure during Testing?

The Air Pressure during testing is the pressure exerted by air on specimen during standard testing of specimen and is represented as ρ = (V*h_sp)/(PN*A*t_p) or Air pressure on wall = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Cross-sectional area of specimen*Time). Volume of Air Flow through Specimen is the amount of air which passes through the specimen during testing, Specimen Height is the height of specimen defined in question, Permeability Number is the rate of flow of air passing through a standard specimen under a standard pressure, Cross-sectional area of specimen is the area exposed when specimen is cut transversely & Time is the fundamental dimension of measurement.

How to calculate Air Pressure during Testing?

The Air Pressure during testing is the pressure exerted by air on specimen during standard testing of specimen is calculated using Air pressure on wall = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Cross-sectional area of specimen*Time). To calculate Air Pressure during Testing, you need Volume of Air Flow through Specimen (V), Specimen Height (h_sp), Permeability Number (PN), Cross-sectional area of specimen (A) & Time (t_p). With our tool, you need to enter the respective value for Volume of Air Flow through Specimen, Specimen Height, Permeability Number, Cross-sectional area of specimen & Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search