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Article #128Re: Computers use 7W when SWITCHED OFF!
From: Tony Houghton
Date: Wed, 18 Mar 2009 17:40
Date: Wed, 18 Mar 2009 17:40
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3006 bytes
On Wed, 18 Mar 2009 16:42:12 -0000 Conor <conor_turton@hotmail.com> wrote: > In article <20090318003303.50355e18@realh.co.uk>, Tony Houghton says... > > > Arcade machines spread their heat dissipation over a bigger area and are > > next to the occupants instead of on the ceiling. > > How fucking dumb are you? Hot air rises, cold air falls. So why can't you realise how that makes it better to have your heat sources near the ground than on the ceiling? > In order to > have, say, 20C at ground level to 6ft - the height of a person, you > have to have 20C from 6ft to the ceiling. That's not what heat from a ceiling light achieves. Unless the air around it gets blown downwards it has to heat it to above 20C for it to fight the temperature gradient and raise the temperature at ground level. I think the point you're trying to make is that because the lightbulb is heating the air around it, heat from below isn't lost into that space. That's true, but the point I'm making is that the area around the lightbulb gets hotter than the desired 20C and in real world conditions (no absolutely perfect insulation, people coming in and out of doors etc) that surplus energy can escape from the room faster. -- TH * http://www.realh.co.uk
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X-Google-Thread: 1063f0,458311f9b43cefc2 X-Google-Thread: 108c83,458311f9b43cefc2 X-Google-Thread: 106e5e,458311f9b43cefc2 X-Google-Attributes: gid1063f0,gid108c83,gid106e5e,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news2.google.com!news2.google.com!news.glorb.com!news2.glorb.com!tudelft.nl!txtfeed1.tudelft.nl!newsfeed.straub-nv.de!weretis.net!feeder1.news.weretis.net!usenet.ukfsn.org!realh.co.uk!not-for-mail From: Tony Houghton <h@realh.co.uk> Newsgroups: uk.comp.homebuilt,aus.computers,nz.comp Subject: Re: Computers use 7W when SWITCHED OFF! Date: Wed, 18 Mar 2009 17:40:31 +0000 Organization: A well-installed InterNetNews site Lines: 32 Message-ID: <20090318174031.245efd70@realh.co.uk> References: <c5dbc39e-e6ae-44e2-b87b-9063af737bab@x29g2000prf.googlegroups.com> <49bdec79$1$2602$afc38c87@news.optusnet.com.au> <gpkqgn$k2g$1@lust.ihug.co.nz> <gpl4ab$tmu$3@news.albasani.net> <49be195a$0$16175$db0fefd9@news.zen.co.uk> <726r49Fmvj23U1@mid.individual.net> <01cea21f$0$20670$c3e8da3@news.astraweb.com> <729mngFouc3lU1@mid.individual.net> <20090317183849.3c265632@realh.co.uk> <72aatmFopkmcU2@mid.individual.net> <20090317221537.1af9348a@hp530> <72ar0gFohaaqU5@mid.individual.net> <20090318003303.50355e18@realh.co.uk> <72cmj9Fp6283U2@mid.individual.net> NNTP-Posting-Host: 84.45.223.215 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Trace: localhost.localdomain 1237398968 29457 84.45.223.215 (18 Mar 2009 17:56:08 GMT) X-Complaints-To: usenet@localhost.localdomain NNTP-Posting-Date: Wed, 18 Mar 2009 17:56:08 +0000 (UTC) X-Newsreader: Claws Mail 3.7.1 (GTK+ 2.14.7; x86_64-pc-linux-gnu)