From: News on 26 Jun 2008 17:59 "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 26 Jun 2008 18:48 News wrote: > Does COP only relate to heat pumps? Why is your brain so small ?
From: Eeyore on 26 Jun 2008 18:50 News wrote: > Does COP only relate to heat pumps? yes http://en.wikipedia.org/wiki/Coefficient_of_performance
From: janpajak on 30 Jun 2008 01:01 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 30 Jun 2008 04:54
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 |