Time Taken 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%
✖Air pressure on wall is the pressure exerted by air on the walls in which it is confined.ⓘ Air pressure on wall [ρ]			+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 Taken during Testing [t_p]

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Formula

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Time Taken during Testing

Formula

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

Example

`"2.996942s"=("0.002m³"*"5m")/("4.36H/m"*"0.0385kgf/m²"*"0.002027m²")`

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Time Taken during Testing Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

Time - (Measured in Second) - Time is the fundamental dimension of measurement.
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.
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.
Cross-sectional area of specimen - (Measured in Square Meter) - Cross-sectional area of specimen is the area exposed when specimen is cut transversely.

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
Air pressure on wall: 0.0385 Kilogram-Force per Square Meter --> 0.377556024999973 Pascal (Check conversion here)
Cross-sectional area of specimen: 0.002027 Square Meter --> 0.002027 Square Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_p = (V*h_sp)/(PN*ρ*A) --> (0.002*5)/(4.36*0.377556024999973*0.002027)

Evaluating ... ...

t_p = 2.99694213009984

STEP 3: Convert Result to Output's Unit

2.99694213009984 Second --> No Conversion Required

FINAL ANSWER

2.99694213009984 ≈ 2.996942 Second <-- Time

(Calculation completed in 00.004 seconds)

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Created by Rajat Vishwakarma

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

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

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< 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

Time Taken during Testing Formula

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

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 Time Taken during Testing?

Time Taken during Testing calculator uses Time = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Air pressure on wall*Cross-sectional area of specimen) to calculate the Time, The Time taken during testing is time taken by air to completely pass through the sand specimen in PN testing. Time is denoted by t_p symbol.

How to calculate Time Taken during Testing using this online calculator? To use this online calculator for Time Taken during Testing, enter Volume of Air Flow through Specimen (V), Specimen Height (h_sp), Permeability Number (PN), Air pressure on wall (ρ) & Cross-sectional area of specimen (A) and hit the calculate button. Here is how the Time Taken during Testing calculation can be explained with given input values -> 3.004747 = (0.002*5)/(4.36*0.377556024999973*0.002027).

FAQ

What is Time Taken during Testing?

The Time taken during testing is time taken by air to completely pass through the sand specimen in PN testing and is represented as t_p = (V*h_sp)/(PN*ρ*A) or Time = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Air pressure on wall*Cross-sectional area of specimen). 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, Air pressure on wall is the pressure exerted by air on the walls in which it is confined & Cross-sectional area of specimen is the area exposed when specimen is cut transversely.

How to calculate Time Taken during Testing?

The Time taken during testing is time taken by air to completely pass through the sand specimen in PN testing is calculated using Time = (Volume of Air Flow through Specimen*Specimen Height)/(Permeability Number*Air pressure on wall*Cross-sectional area of specimen). To calculate Time Taken during Testing, you need Volume of Air Flow through Specimen (V), Specimen Height (h_sp), Permeability Number (PN), Air pressure on wall (ρ) & Cross-sectional area of specimen (A). With our tool, you need to enter the respective value for Volume of Air Flow through Specimen, Specimen Height, Permeability Number, Air pressure on wall & Cross-sectional area of specimen 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 Time?

In this formula, Time uses Volume of Air Flow through Specimen, Specimen Height, Permeability Number, Air pressure on wall & Cross-sectional area of specimen. We can use 1 other way(s) to calculate the same, which is/are as follows -

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

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