HVAC Air Flow Pressure

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sagarrajup Participant Join Date: Feb 2013 Posts: 4	HVAC Air Flow Pressure 02/22/2013 10:41 AM
	how to calculate air velocity pressure from given AIR FLOW(CFM), if we doesn't no duct dimensions and air velocity, please clarify this question, if static pressure is zero
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lyn Guru Join Date: Oct 2008 Posts: 42355 Good Answers: 1693	#1 Re: HVAC AIR FLOW PRESSURE 02/22/2013 10:46 AM
	You can't. Dynamic pressure - Wikipedia, the free encyclopedia
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Mike W Power-User Join Date: Sep 2012 Location: Seattle, WA, USA Posts: 147 Good Answers: 9	#2 Re: HVAC Air Flow Pressure 02/22/2013 2:16 PM
	If static pressure is zero, air velocity is zero. For all other values of SP you will need more information. __________________ You have to actively participate in the manifestations of your own joys and good fortunes - they are not ready made for the taking, they are available for the making.
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Codemaster Guru Join Date: Jul 2005 Location: Stoke-on-Trent, UK Posts: 4496 Good Answers: 137	#3 In reply to #2 Re: HVAC Air Flow Pressure 02/23/2013 7:11 AM
	He probably means zero gauge pressure. Static pressure does not depend on velocity, hence its name. __________________ Give masochists a fair crack of the whip
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Fredski Guru Join Date: Feb 2011 Posts: 7025 Good Answers: 207	#4 Re: HVAC Air Flow Pressure 02/24/2013 8:27 PM
	0= 0
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Codemaster (1); Fredski (1); lyn (1); Mike W (1)

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