Jed, this type of argument is not my favourite. Unsubstantiated. You can try to substantiate it and in doing so make a more precise point, but maybe not what you say above. I'm going to do it for the fans Rossi claims he used (which could not cool 1MW with the Rossi piping - but that is a separate argument).
Smith did a much better job substantiating this argument than I did. Let me quote him:
"If the unit were generating the amount of heat that Penon claims, and that heat had been
left to naturally dissipate, no human could have worked, or even survived, for long in the space.
Obviously, this temperature rise in the space never happened.
Alternatively, JMP could have used a roof-mounted fan to remove all rejected heat. Fan
sizing is:
CFM = Cubic Feet of air per Minute
c = Specific heat of air in BTU per pound of air per °F (BTU / Lb. °F) = 0.24
ΔT = Temperature difference of the air, in this case 130° F - 80° F
ρ = Average density of the air in pounds per cubic foot = 14.3
CFM = (2,700,000) x (1 / c) x (1 / 60) x (1 / 130 – 80) x ρ
= (2,700,000) x (1 / 0.24) x (1 / 60) x (1 / 50) x 14.3
= 53,625 CFM
A roof mounted fan to move this much air would have a blade diameter of about 54”, a
10 HP motor, would have dimensions of about 60” square and about 48” high, and would look
something like the next picture."
http://coldfusioncommunity.net…/01/0235.01_Exhibit_1.pdf
Is that better?
You cannot use only two panes of glass with a 54" fan blade. I am pretty sure a 10 HP fan would blow out the remaining glass if you tried.
More to the point, no one puts 1-MW class ventilation equipment in a room upstairs. You put it in open air, up on the roof, or in a space on the ground next to the building. Like an air conditioner compressor and fan. It would be crazy to enclose it in the building.
The part about having to separate the inlet and outlet ducts is my own observation, based on what I know about HVAC equipment. Even outdoors, warm air sticks around more than you might think. Putting the inlet right next to the outlet degrades performance. This is why you should trim back shrubbery around an air conditioner outside unit, to disperse the warm air.