[Gasification] Prime Mover Knock

[Jeff Davis]

Dear List,

Early diesels used fuel injection by high pressure air. This atomized spray, 
into the cylinder, made a soft combustion hense slower rate of pressure rise 
after injection started. No diesel knock was heard.

Jeff


Tom wrote:
	Dear Mark, Arnt and All:

	And the diesel droplets in a diesel engine burn even more slowly. 

	I believe that the gasoline explosion is a conflagration, while "knock" 
	is a detonation". 

	Hydrogen has such a high burning velocity that its combustion is like 
	"knock".  So they typically burn it very lean.  Hydrogen rich gas has 
	enough N2 and CO so that it burns more slowly.

	TOM REED     BEF



-- 
Jeff Davis
Somewhere 20 miles south of Lake Erie, USA
http://www.velocity.net/~jeff0124