Conserving Energy Use of Fans

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Anonymous Poster	Conserving Energy Use of Fans 07/15/2010 3:11 PM
	If we want the fan to consume less electricity at low speed, what do we have to do?
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farmatt Power-User Join Date: Jun 2010 Location: Brownsville, Oregon, USA Posts: 345 Good Answers: 10	#1 Re: If we want the fan to consume less electricity at low speed, what do we have to 07/15/2010 3:14 PM
	vary the blade pitch __________________ Give me enough duct tape and I can fix anything!
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Doorman Guru Join Date: Apr 2009 Location: Yellowstone Valley, in Big Sky Country Posts: 7425 Good Answers: 295	#2 Re: If we want the fan to consume less electricity at low speed, what do we have to 07/15/2010 3:16 PM
	Turn it off. Rate of consumption will be reduced to zero. __________________ Semper Ubi Sub Ubi
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JRaef Guru Join Date: Sep 2006 Location: California, USA, where the Godless live next door to God. Posts: 4665 Good Answers: 804	#3 Re: If we want the fan to consume less electricity at low speed, what do we have to 07/15/2010 3:17 PM
	Define "fan" Define "low speed" All centrifugal loads, such as many (but not all) types of fans, will ALWAYS consume less energy at lower flow, which usually relates to speed, than the same machine will at higher flow, it is called the "Afinity Law" (look it up). How you attain the lower flow and/or speed makes a difference. __________________ All I every really wanted to be, was... A LUMBERJACK!.
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jack of all trades Guru Join Date: Sep 2006 Location: Auckland, New Zealand Posts: 8777 Good Answers: 376	#4 Re: If we want the fan to consume less electricity at low speed, what do we have to 07/15/2010 3:20 PM
	Please see the numerous recent threads on CR4 as this question has been answered at least once. __________________ jack of all trades
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comingsoon Member Join Date: Jun 2010 Posts: 5	#5 Re: Conserving Energy Use of Fans 07/15/2010 6:58 PM
	to conserve energy cut down one blade.
	Reply Score 1 for Off Topic

Anonymous Poster	#6 Re: Conserving Energy Use of Fans 07/16/2010 3:48 AM
	if you are talking about domestic fans then electronic regulator is better option to conserve energy by controlling fan speed. never use resistors based fan regulators (as mostly used in homes) for that purpose it wastes energy. in industrial fans VFD is best option.
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jignesh142 Active Contributor Join Date: Jun 2008 Posts: 13	#7 Re: Conserving Energy Use of Fans 07/16/2010 5:55 AM
	use VFD
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Anonymous Poster (1); comingsoon (1); Doorman (1); farmatt (1); jack of all trades (1); jignesh142 (1); JRaef (1)

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