Re: EXTERNAL: Re: [Vo]:Pump power must be included

2011-04-20 Thread Harry Veeder
t flow. Harry > >From: "Roarty, Francis X" >To: "vortex-l@eskimo.com" >Sent: Wed, April 20, 2011 3:34:37 PM >Subject: RE: EXTERNAL: Re: [Vo]:Pump power must be included > > >Harry, >    I agree the energy utilized should be subtracted fr

Re: [Vo]:Pump power must be included

2011-04-20 Thread Harry Veeder
Jed Rothwell wrote: >Harry Veeder wrote: > >>Whether or not the water flow is powered by the pump >>or a waterfall, the kinetic energy of the flow may be a factor. > >No, it may not. That's out of the question. I have operated many flow >calorimeters of all sizes and types, and there is absolu

Re: [Vo]:Pump power must be included

2011-04-20 Thread mixent
In reply to Alan J Fletcher's message of Wed, 20 Apr 2011 09:37:23 -0700: Hi, [snip] If we assume 100 psi for the mains pressure, then a flow rate of 1 L /s equates to a total power of 724 W, assuming all the power in the water gets used. This would raise the temperature of that water by 0.173 ºC

Re: EXTERNAL: Re: [Vo]:Pump power must be included

2011-04-20 Thread Jed Rothwell
Roarty, Francis X wrote: I agree the energy utilized should be subtracted from the output but how much of the pressure or flow rate is actually removed from the system? No measurable amount is removed. I guarantee that. -- the differential measurements are only for temp b

RE: EXTERNAL: Re: [Vo]:Pump power must be included

2011-04-20 Thread Roarty, Francis X
exiting water after measurement into same diameter pipe as the source and measure with an identical flow rate meter? Fran From: Harry Veeder [mailto:hlvee...@yahoo.com] Sent: Wednesday, April 20, 2011 3:11 PM To: vortex-l@eskimo.com Subject: EXTERNAL: Re: [Vo]:Pump power must be included Whether

Re: [Vo]:Pump power must be included

2011-04-20 Thread Jed Rothwell
Harry Veeder wrote: Whether or not the water flow is powered by the pump or a waterfall, the kinetic energy of the flow may be a factor. No, it may not. That's out of the question. I have operated many flow calorimeters of all sizes and types, and there is absolutely no way you can detect t

Re: [Vo]:Pump power must be included

2011-04-20 Thread Harry Veeder
Whether or not the water flow is powered by the pump or a waterfall, the kinetic energy of the flow may be a factor. A lack of water movement may explain why some PF type cells failed to perform in the past. They depended on the fickle nature of convection to spring to life. Harry yes, goo

Re: [Vo]:Pump power must be included

2011-04-20 Thread Jed Rothwell
Harry Veeder wrote: yes, good point Jones, the system input power includes the power to operate the pump and the resistive heaters. That is incorrect. Please review the messages I have posted. The input power does not include the pump any more than it includes the overhead lights or an oscil

Re: [Vo]:Pump power must be included

2011-04-20 Thread Harry Veeder
hmm if water flow is required then could it be powered by the e-cat through convective heating. Harry > >From: Jones Beene >To: vortex-l@eskimo.com >Sent: Wed, April 20, 2011 10:34:59 AM >Subject: [Vo]:Pump power must be included > > >Peter, >  >The “Rossi effect” is controlled in a narrow rang

Re: [Vo]:Pump power must be included

2011-04-20 Thread Jed Rothwell
Alan J Fletcher wrote: a) The pump does add a tiny amount of heat to the water passing through it : the input temperature should be measured AFTER the pump. It is always measured after the pump. It would be rather difficult to measure it before the pump. Offhand, I can't imagine how you would a

Re: [Vo]:Pump power must be included

2011-04-20 Thread Harry Veeder
yes, good point Jones, the system input power includes the power to operate the pump and the resistive heaters. Harry

RE: [Vo]:Pump power must be included

2011-04-20 Thread Alan J Fletcher
a) The pump does add a tiny amount of heat to the water passing through it : the input temperature should be measured AFTER the pump. b) There is FRICTIONAL loss in a pipe http://www.efunda.com/formulae/fluids/calc_pipe_friction.cfm (Though in that calculation it's expressed as pressure drop).

Re: [Vo]:Pump power must be included

2011-04-20 Thread Peter Gluck
Dear Jones, make some calculations please. for this case. OK? The word "constrictors" is terrific (Boa) Peter On Wed, Apr 20, 2011 at 7:18 PM, Jones Beene wrote: > *From:* Peter Gluck > > > > OK, old friend I understand what you say, the energy of the pump is > consumed, is money spent for ma

RE: [Vo]:Pump power must be included

2011-04-20 Thread Jones Beene
From: Peter Gluck OK, old friend I understand what you say, the energy of the pump is consumed, is money spent for making the generator to work. No connection with heat balance of the system- but goes to expenses. Right? Dear Peter, Yes, but we can take it further. As a studen

Re: [Vo]:Pump power must be included

2011-04-20 Thread Peter Gluck
OK, old friend I understand what you sya, the energy of the pump is consumed, is money spent for making the generator to work. No connection with heat balance of the system- but goes to expenses. Right? Peter On Wed, Apr 20, 2011 at 6:42 PM, Jones Beene wrote: > Dear Peter, > > > > I do not und

RE: [Vo]:Pump power must be included

2011-04-20 Thread Jones Beene
Dear Peter, I do not understand the problem. There are two systems involved: heat and electricity At the system level P-out is thermal and refers to net heat. The calorimetry determines P-out for heat. P-in for the system, not for the calorimetry, is determined by the sum of all the elect

Re: [Vo]:Pump power must be included

2011-04-20 Thread Peter Gluck
Want I wanted to say- the pump is part of the cooling circuit to which the heat produced is transfered. Has nothing to do with the heat produced. peter On Wed, Apr 20, 2011 at 6:15 PM, Jed Rothwell wrote: > Peter Gluck wrote: > > Fortunately the inlet temperature of water is measured and this

Re: [Vo]:Pump power must be included

2011-04-20 Thread Jed Rothwell
Peter Gluck wrote: Fortunately the inlet temperature of water is measured and this includes or, if you wish excludes the effect of the pump/motor. But he effect is negligible- and not on the side of Pin- it is at Pout. No, not Pout. The heat from the pump shows up past Pout, at the place wh

Re: [Vo]:Pump power must be included

2011-04-20 Thread Peter Gluck
Dear Jones, If the power has to be included, it has to be measured. But only a part of the energy consumed by the motor of the pump is used to make the water to moveand this produces a small heating of water due to friction, So the reverse is true- the power of the motor has to be subtracted from