[Gasification] Re: Gasification Digest, Vol 22, Issue 11

[Thomas Reed]

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


Mark Ludlow wrote:

>In an internal combustion engine, gas does not "explode"; it burns rapidly
>but at a controlled rate.
>
>Mark 
>
>-----Original Message-----
>From: gasification-bounces at listserv.repp.org
>[mailto:gasification-bounces at listserv.repp.org] On Behalf Of Arnt Karlsen
>Sent: Friday, May 12, 2006 3:08 PM
>To: gasification at listserv.repp.org
>Subject: Re: [Gasification] Re: Gasification Digest, Vol 22, Issue 11
>
>
>On Fri, 12 May 2006 06:14:14 -0700 (PDT), Michael wrote in message
><20060512131414.36768.qmail at web51307.mail.yahoo.com>:
>  
>
>>Jeff Davis <jeff0124 at velocity.net> wrote:
>>  Dear Col and list,
>>
>>Some would say that mean old Mr Heat moves the Piston.
>>
>>On Thursday 11 May 2006 10:55 am, col wrote:
>>    
>>
>>>While the flame velocity may be important in fuel efficiency,surely 
>>>it is the explosion of the burnt gas in the cylinder that drives the 
>>>piston,not the flame velocity .
>>>      
>>>
>>True. I would add that the two are related since the rate of expansion 
>>controls the load distribution on the piston during it's trip from TDC 
>>to BDC in the stroke.
>>   
>>  I'm a latecomer to this thread so, I apologize if I'm repeating
>>  someone else.
>>   
>>  ...now, if only someone could develop an engine that produces
>>  adiabatic expansion of gasses during the power stroke and ambient
>>  temperatures at the bottom of the stroke.
>>    
>>
>
>..how 'bout http://www.bekkoame.ne.jp/~khirata/seesaw/indexe.htm ? ;o)
>
>--
>..med vennlig hilsen = with Kind Regards from Arnt... ;o) ...with a number
>of polar bear hunters in his ancestry...
>  Scenarios always come in sets of three: 
>  best case, worst case, and just in case.
>
>
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>  
>

-- 
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