Talk:Thermal efficiency: Difference between revisions

Content deleted Content added

Inline

Revision as of 16:44, 3 January 2008

Physics Stub‑class

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Stub	This article has been rated as Stub-class on Wikipedia's content assessment scale.
???	This article has not yet received a rating on the project's importance scale.

What in blazes is going on in the thermal efficiency section? E_hp - E_r = 1 ?!?!

So E_hp was greater than one to begin with?! Something needs explanation or changing here! —The preceding unsigned comment was added by 165.124.116.206 (talk) 23:06, August 22, 2007 (UTC)

Internal combustion engines are not "thermal devices" like furnaces or steam engines. Heat is a byproduct of burning fuel to generate pressure. Heat is actually unwanted, thus radiators and so on. External combustion engines are "thermal devices" because they specifically use heat, to generate pressure.

Revision as of 23:07, 22 August 2007 edit SineBot (talk \| contribs) Bots 2,551,849 edits m Automatically signing comment made by 165.124.116.206 ← Previous edit		Revision as of 16:44, 3 January 2008 edit undo Arantius (talk \| contribs) 12 edits No edit summary Next edit →
Line 5:		Line 5:

	So E_hp was greater than one to begin with?! Something needs explanation or changing here! <small>—The preceding [[Wikipedia:Signatures\|unsigned]] comment was added by [[Special:Contributions/{{{IP\|{{{User\|165.124.116.206}}}}}}\|{{{IP\|{{{User\|165.124.116.206}}}}}}]] ([[User talk:{{{IP\|{{{User\|165.124.116.206}}}}}}\|talk]]) {{{Time\|23:06, August 22, 2007 (UTC)}}}</small><!-- Template:UnsignedIP --> <!--Autosigned by SineBot-->		So E_hp was greater than one to begin with?! Something needs explanation or changing here! <small>—The preceding [[Wikipedia:Signatures\|unsigned]] comment was added by [[Special:Contributions/{{{IP\|{{{User\|165.124.116.206}}}}}}\|{{{IP\|{{{User\|165.124.116.206}}}}}}]] ([[User talk:{{{IP\|{{{User\|165.124.116.206}}}}}}\|talk]]) {{{Time\|23:06, August 22, 2007 (UTC)}}}</small><!-- Template:UnsignedIP --> <!--Autosigned by SineBot-->

			Internal combustion engines are not "thermal devices" like furnaces or steam engines. Heat is a byproduct of burning fuel to generate ''pressure''. Heat is actually unwanted, thus radiators and so on. External combustion engines are "thermal devices" because they specifically use heat, to generate pressure.