[Gasification] tests to design a new cheap gasifier fan

Les Freeman woodsman47203 at yahoo.com
Sat Nov 13 14:57:58 CST 2010

I have 480 volt 3 phase in my mills and I use Hitachi  VFD's to increase the 
speed of the fans. I have driven some of them as 300 hz , at which they saturate 
and stop rotation . At 120hz I am getting 7200 rpms out the fans. Hatichi builds 
fractional hp VFD's that can be run on 220 volt single phase and the VFD 
converts single phase to 3 phase. That feature is quite handy and they are easy 
to set up.
Les Freeman

>From: "sabbadess at aol.com" <sabbadess at aol.com>
>To: gasification at lists.bioenergylists.org
>Sent: Sat, November 13, 2010 9:35:53 AM
>Subject: Re: [Gasification] tests to design a new cheap gasifier fan
>True, if you need psi of pressure boost not inches of water.  I will try to add 
>numbers to this post later today.  
>-----Original Message-----
>From: Arnt Karlsen <arnt at c2i.net>
>To: gasification <gasification at lists.bioenergylists.org>
>Sent: Sat, Nov 13, 2010 4:52 am
>Subject: Re: [Gasification] tests to design a new cheap gasifier fan
>On Fri, 12 Nov 2010 18:13:12 -0800 (PST), Les wrote in message   
><573209.67848.qm at web55103.mail.re4.yahoo.com>:    > To: Discussion of biomass 
>pyrolysis and gasification   > <gasification at lists.bioenergylists.org  >   > Has 
>anyone tryed using the rotor out of a turbocharger to make a fan  > for a 
>gasifier. I have taken the compressor end apart and made an  > adapter to mount 
>on a C face motors, usually 3600 rpm, for a high  > volume vac system to move 
>solids. Les Freeman    ..you would need to gear up that turbocharger fan so it 
>can   do turbocharger speeds, they easily exceed e.g. 136000rpm,  for common 
>automotive sizes.    --   ..med vennlig hilsen = with Kind Regards from Arnt... 
>;o)  ...with a number of polar bear hunters in his ancestry...    Scenarios 
>always come in sets of three:     best case, worst case, and just in case.    
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