From: News on

"You" <you(a)shadow.orgs> wrote in message
news:you-6D0C4B.10225726062008(a)netnews.worldnet.att.net...
> In article <g3ufbh$edr$2(a)registered.motzarella.org>,
> "News" <killefitz(a)invalid.invalid> wrote:
>
>> An immersion electric resistance heater is COP 1, well 0.99. About the
>> best
>> at point of use using purchased energy as input. A COP of 1.7 is for
>> that
>> each kW consumed 1.7 is output. Is that over unity?
>
> NO, the COP of 1.7 means your "Moving" 1.7Kw of External Energy for
> every 1 Kw of energy expended. You move BTU's for "One Place" to
> "Another Place" and you can "Move" those BTU's with less energy epended,
> than the BTU's you moved.

OK. An electric resistance heater of 0.99% efficient (say 100% as all
energy is burnt at point of use) is COP 2. That for every 1kW used, 2 kW is
output? Sounds odd. Nothing is moved. When in reality for every 1 kW
burnt, 1 kW is output. Sounds like COP 1 to me.

Does COP only relate to heat pumps?

From: Eeyore on


News wrote:

> Does COP only relate to heat pumps?

Why is your brain so small ?


From: Eeyore on


News wrote:

> Does COP only relate to heat pumps?

yes
http://en.wikipedia.org/wiki/Coefficient_of_performance

From: janpajak on
On Jun 28, 5:49 am, Eeyore <rabbitsfriendsandrelati...(a)hotmail.com>
wrote:
...
> No you haven't.
...
> It was a con trick.
...

This was exacly what the Jornal "Scientific American" said about the
Wright Brothers' airplane.

With the totaliztic salute,
Jan Pajak
From: Eeyore on


janpajak(a)gmail.com wrote:

> On Jun 28, 5:49 am, Eeyore <rabbitsfriendsandrelati...(a)hotmail.com>
> wrote:
> ...
> > No you haven't.
> ...
> > It was a con trick.
> ...
>
> This was exacly what the Jornal "Scientific American" said about the
> Wright Brothers' airplane.

Cite ?

Graham