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Fluid Mechanics

07/28/2009 12:23 PM

I have a pump which is rated 7 kg/cm^2 and 50 m^3/min whose outlet is going to cool the cooling chamber of a compressor. The Fluid will have to travel at least 200 metres to reach the cooling chamber. At the entrance how much flow and pressure will i get? Also how can i correlate pressure with flow?

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Guru

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#1

Re: fluid mechanics

07/28/2009 1:16 PM
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Guru

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#2

Re: Fluid Mechanics

07/29/2009 2:41 AM

Are you sure about the flow rate? That represents about 0.5 Mega watt cooling / deg C difference in temperature between inlet and out let.

What kind of compressor needs that much cooling? The pump itself will have a huge wattage.

Bioramani

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#3

Re: Fluid Mechanics

07/29/2009 3:47 AM

Use the Weisbach-Darcy equation for generalised pipe flow calculations.

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#4

Re: Fluid Mechanics

07/31/2009 2:58 AM

3000 m^3/hour? Some cooling water pump. You need to check the units, this does not sound right as pointed out by bioromani.

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#5
In reply to #4

Re: Fluid Mechanics

07/31/2009 11:38 AM

actually the flow is 24m^3/hr.

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Guru

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#6
In reply to #5

Re: Fluid Mechanics

07/31/2009 1:01 PM

If it is a centrifugal pump and the data is from the name plate, it is likely that the flow rate is at zero head and the pressure at no flow. More specs on the compressor rating and characteristics of the pump will be needed to give a more meaningful answer. 'Onrume puriavillai' Bioramani

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#7
In reply to #5

Re: Fluid Mechanics

01/03/2023 6:30 AM

...which differs from the data in the original post by a factor of 125.

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#8

Re: Fluid Mechanics

01/03/2023 6:31 AM

Assuming the pipe between the two has only two ends, the flow will be the same at each end; it is only the pressure that changes. See #3⇑.

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