Re: [ST] Bring on the cold!!!...this enough?

[Bryce <bster13@xxxxxxxxx>]

Well that makes sense...readline is somewhere between
12-13 if I remember correctly.  Then there is no way
to calculate the Alternators output at various RPMs
because it is not linear....well that just sucks! :-p

Thanks,

Bryce
- --- Enrico <enrico@xxxxxx> wrote:
> 
> Three phase alternators have no linear
> characteristic curve for the produced output power -
> so it isn't correct to calculate the output power
> via the rotations as a linear function.
> The full output power will be delivered usually by
> 1/3 of the maximum rpms of the alternator.
> 
> During 'normal' driving conditions always enough
> current will be delivered for all load (ignition,
> lights etc.). If your vest needs not more than 50
> Watts (3.6 Amps) it should be ok with your 400 W
> Alternator.
> 
> Enrico
> '00 ST 'BlueBelle'
> Vienna, Austria, Europe
> -- 
> my native language is german. if you will find
> errors you are allowed to keep it for yourself
> 
> ----- Original Message ----- 
> From: "Bryce" <bster13@xxxxxxxxx>
> To: <ST@xxxxxxxxxxxxxx>
> Sent: Tuesday, October 15, 2002 10:23 PM
> Subject: Re: [ST] Bring on the cold!!!...this
> enough?
> 
> 
> > 28.6A @ 6000 rpm, 14V. 
> > 
> > my zx-11 pumps out 28.6A @ 6000 rpm, 14V. So peak
> > watts = 400.4 watts.  
> > 
> > Now that's while the battery is getting a charge
> from
> > the alternator of 
> > 
> > course (14v) and at peak charge 6,000 RPM.  So
> just
> > estimating here...  
> > 
> > 28.6v/6000RPM = x/4000RPM, x=19.04v @ 4,000 RPM
> > 
> > and
> > 
> > 28.6v/6000RPM = x/3000RPM, x=14.3v @ 3,000 RPM
> > 
> > so...
> > 
> > Watts = Amps x Volts
> > 
> > Watts @ 4,000RPM = 266.84 Watts
> > 
> > or...
> > 
> > Watts @ 3,000RPM = 200.2 Watts
> > 
> > - 60 watt headlight (on high)
> > - 42 watts tailights (21 each)
> > - 24 watts heated grip kit on high
> > - 50 watts homemade heated vest (buid to meet heat
> > needs, may draw less)
> > 
> > = 24.2 Watts left over. with 200.2 Watt system @
> 3,000
> > RPM or 90.84 left using 266.84 Watts to start with
> @
> > 4,000RPM.
> > 
> > Can someone check my math here and make sure I
> took
> > everything into consideration?  Is 24.2 watts left
> to
> > charge the battery correct?  Or should I be doing
> this
> > all based off the Ameperage?
> > 
> > (W = A x V)
> > (24.2 = A x 14v)
> > (A = 1.73 amps to charge battery?)
> > 
> > Thanks,
> > 
> > Bryce
> > 
> > --- Brian D <brd@xxxxxxx> wrote:
> > > On Tue, Oct 15, 2002 at 01:51:14PM -0500, Tom
> > > Emberson wrote:
> > > > On Tue, 15 Oct 2002, Bryce wrote:
> > > > 
> > > > > yeah they are cool, but the costs, plus the
> > > drain on
> > > > > my battery start to add up.  Perhaps heated
> > > grips and
> > > > 
> > > > The ST has more than enough juice comming out
> of
> > > the alternator
> > > > for the grips, vest and autocom (not that the
> > > autocom consumes
> > > > much).
> > > 
> > > Agreed.  It's a high-output alt with the
> intention
> > > being that you will
> > > use a lot of accessories off it.
> > > 
> > > I've run the heated grips and 2 vests
> simultaneously
> > > with no problems.
> > > 
> > > Laters,
> > > Brian
> > > -- 
> > > '99 ST (black)
> > > Dallas, TX
> > 
> > 
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