On 01/16/2010 10:24 PM, Mark Iverson wrote: > You forgot to include mechanical E...
No I didn't. However, I did misunderstand Sean's comment, as I realized upon re-reading it after I saw your response. > > In Harry Veeder's recent post, Sean (Steorn) is quoted as saying, > "...to be clear, as the rotor speeds up the mechanical power increases, the > electrical power remains > the same and the power to heat remains the same." > > So, does that mean that below some RPM its <U, and above that RPM it >U? > According to the schedule, > which they have been holding to, we should be able to answer that question by > the end of Jan. > > -Mark > > > -----Original Message----- > From: Stephen A. Lawrence [mailto:[email protected]] > Sent: Saturday, January 16, 2010 7:07 PM > To: [email protected] > Subject: Re: [Vo]:More from Inductance thread in Steorn forum > > > > On 01/16/2010 08:38 PM, Harry Veeder wrote: > >> Steorn: Ok there is a whole load of things mixed up here. If we take a >> classical view of any system, there are no losses or gains, just >> changes in forms of energy. So your comment that the diode increases >> losses is just not true - it changes theform of some of the energy >> conversion. >> >> As for the change in inductance - its independent of rotational speed. >> >> The amount of energy converted to heat thru Joule heating reduces per >> revolution, but the amount of heat power produced is always the same >> (same dutycycle, no BEMF). > > SAY WHAT???? > > Is that not exactly what Bill Beaty has been saying? > > As the motor revs up the resistive heat (i.e., the losses in the coils, the > "Joule heating") drops. > > But that is the chain of reasoning that leads to the conclusion that it's not > OU, so it can't be > what was meant here. > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.725 / Virus Database: 270.14.142/2623 - Release Date: 01/15/10 > 23:35:00 >
