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munish_prashar
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Join Date: May 2009
Posts: 16

Compressed Air Calculation

06/21/2009 2:20 AM

Please let me know how to calculate the air consumption for following scenario:

In a tank of 400 ltrs a product is entered with sp. gravity of 1.56. The constant pressure of air on a tank is 3.5 bar which enters through pressure regulator and maintained at 3.5 bar throughout. even while product is getting consumed and than again refilled.
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devitg
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Join Date: May 2009
Location: CORDOBA ARGENTINA
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#1

Re: Compressed Air Calculation

06/21/2009 9:23 AM

What is the products flow ?

It's pressure.?

I assume it is refilled under the 3.5 bar

It could be the product flow in volumen by 3.5 .

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munish_prashar
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#2
In reply to #1

Re: Compressed Air Calculation

06/21/2009 11:42 AM

The product flow is 50 kg/min

and it's pressure is 12 bar
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devitg
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#3
In reply to #2

Re: Compressed Air Calculation

06/21/2009 1:24 PM

So the tank is closed , under 3.5 bar

Each time you refill , 50 kg/min * 1/ 1.56 kg /liter = 32.5 liters/min enters the tank.

What is the outcoming flow?

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munish_prashar
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#4
In reply to #3

Re: Compressed Air Calculation

06/21/2009 11:45 PM

Outgoing flow is 40 kg/min.
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munish_prashar
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#6
In reply to #3

Re: Compressed Air Calculation

06/22/2009 3:11 AM

The outgoing flow is 50 kg/min
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devitg
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#7
In reply to #6

Re: Compressed Air Calculation

06/22/2009 6:45 AM

If incomimg is at the same outcoming , no air spent.

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munish_prashar
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Posts: 16
#8
In reply to #7

Re: Compressed Air Calculation

06/22/2009 11:32 PM

In some cases product flow varies to 40 kg/min and air is getting escaped thru exhaust port.
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Anonymous Poster
#5

Re: Compressed Air Calculation

06/21/2009 11:58 PM

Its depend on your consumption volum you need to study what is your consumption like you use 100 x100 size cyl double acting cyl so study which CFM requir that cyl then go to your compressure output CFM then calculate loading & unloading time of compressure
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