Thread: What does it take to be a Transport Correspondent?
View Single Post
  #47   Report Post  
Old April 22nd 11, 02:53 PM posted to uk.transport.london,uk.railway
[email protected] boltar2003@boltar.world is offline
external usenet poster
  
First recorded activity at LondonBanter: Nov 2009
Posts: 1,920
Default What does it take to be a Transport Correspondent?
On Fri, 22 Apr 2011 03:30:17 -0700 (PDT)
bob wrote:
The distinction is related to the second law. A motor converts "work"
to other "work" while an engine converts heat to work (and some left
over heat).

Internal combustion engines don't convert heat to work. The work is done
by the pressure of the gas from the chemical reaction. Heat is a useless
byproduct of this reaction that has to be got rid of.

B2003

Reply With QuoteReply With Quote