the point was you don't want a high speed diesel for long term use. the bigger, heavier diesels run at slower rpm's and are better suited for this application.
Steve Spence Subscribe to the Renewable Energy Newsletter & Discussion Boards. Read about Sustainable Technology: http://www.green-trust.org [EMAIL PROTECTED] ----- Original Message ----- From: "Ken Basterfield" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, March 07, 2003 10:11 AM Subject: Re: [biofuel] diesel > Steve, > sorry to be a little picky but it is best to run an engine at peak torque > ( rather than peak hp )which for most motor car Diesels is around 1800 to > 2000 revs. > > HP is confused by engine speed ( hp= 2.pi.N.T/ constant) where N is rpm and > T is torque. Best efficiency i.e. lowest specific fuel consumption is > usaully at peak torque rpm. It also coincides with longest engine life. > > Peak torque rpm can be matched with pulleys and belts to the alternator > operating speed if there is a great discrepancy. > > ken b > ----- Original Message ----- > From: "Steve Spence" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Friday, March 07, 2003 1:56 PM > Subject: Re: [biofuel] diesel > > > > 2 common speeds for 60hz generator heads are 1800 rpm, or 3600 rpm. A > diesel > > that makes it hp rating at 1800 rpm instead of 3600 rpm lasts longer. > > > > > > Steve Spence > > Subscribe to the Renewable Energy Newsletter > > & Discussion Boards. Read about Sustainable Technology: > > http://www.green-trust.org > > [EMAIL PROTECTED] > > ----- Original Message ----- > > From: "Doug Foskey" <[EMAIL PROTECTED]> > > To: <[email protected]> > > Sent: Friday, March 07, 2003 8:42 AM > > Subject: Re: [biofuel] diesel > > > > > > > On Fri, 7 Mar 2003 19:22, you wrote: > > > > Steve > > > > > > > > Can you explain why 1800 rpm engines is important, or anyone else for > > that > > > > matter. I am curious to know, and to take the question even further > are > > > > on-grid generators very expensive in the states? > > > > > > > > Thanks > > > > Doug > > > > > > > > > > I imagine it gives 60Hz. (1800rpm=30rps x 2 pole = 60cps or 60 hz) > > > regards Doug (another0 > > > > > > Biofuel at Journey to Forever: > > > http://journeytoforever.org/biofuel.html > > > > > > Biofuels list archives: > > > http://archive.nnytech.net/ > > > > > > Please do NOT send Unsubscribe messages to the list address. > > > To unsubscribe, send an email to: > > > [EMAIL PROTECTED] > > > > > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > > > > > > > > > > > > > > > > Biofuel at Journey to Forever: > > http://journeytoforever.org/biofuel.html > > > > Biofuels list archives: > > http://archive.nnytech.net/ > > > > Please do NOT send Unsubscribe messages to the list address. > > To unsubscribe, send an email to: > > [EMAIL PROTECTED] > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > > > > > > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuels list archives: > http://archive.nnytech.net/ > > Please do NOT send Unsubscribe messages to the list address. > To unsubscribe, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
