[Diy_efi] RE:Propane instead of N2O

[Chris McKinnon]

Well, it looks like the Latent Heat of Vaporization @ b.p. is 101.76 cal/g.
30,000 BTU's is about 7.6Mcal so you would need to vapourize about 75 kg of
propane to absorb that much energy. Unless I'm wrong. Thermo was never my
best subject.

As a side note, the converter I used says that 30,000 BTU is equivalent to
6.9kg of TNT.

Chris

>That's true, but I wonder if it's enough to make up the (roughly) 30,000 btu
>difference in energy?
>
>John Stricker
>
>----- Original Message ----- 
From: "Chris McKinnon" <chrism at cnx.net>
>To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
>Sent: Saturday, May 24, 2003 11:52 PM
>Subject: Re: [Diy_efi] RE:Propane instead of N2O
>
>
>> Most likely for the charge cooling effect. If you inject LPG as a liquid
>it
>> take a large amount of heat to convert it to gas.
>>
>> Chris
>>
>> >The problem is that there is no shortage of fuel in most performance
>> >engines, there's a shortage of oxygen to facilitate combustion.  On
>average,
>> >it takes 1.35 gallons of propane to equal 1 gallon of gasoline so it's
>> >easier just to add more gasoline and an oxidizer (like nitrous oxide) as
>a
>> >less expensive substitute for forced induction.
>> >
>> >I guess I'm not sure why the original poster wants to inject propane
>instead
>> >of just turning up the fuel.
>> >
>> >John Stricker
>> >
>> >----- Original Message ----- 
>> >From: "Chris McKinnon" <chrism at cnx.net>
>> >To: "List for general do-it-yourself EFI talk" <diy_efi at diy-efi.org>
>> >Sent: Saturday, May 24, 2003 7:32 PM
>> >Subject: Re: [Diy_efi] RE:Propane instead of N2O
>> >
>> >
>> >> When was the last time you saw a propane power car or truck explode?
>I'd
>> >say
>> >> that in reality propane is actually safer than gasoline if setup
>properly.
>> >> It doesn't take much to punch through a plasic gas tank, but a steel
>LPG
>> >> tank is REALLY tough.
>> >>
>> >> Anyways, N2O is actually an oxidizer which will make other things burn
>> >very
>> >> well. A fire involving N2O is something you want to avoid.
>> >>
>> >> Chris
>> >>
>> >> >
>> >> >You probably already know this but propane is flammable while Nitrous
>> >> >is'nt...
>> >> >A line leak and a spark,,, or an accident,,, will turn you car into a
>> >> >bomb...
>> >> >
>> >> >
>> >> >
>> >>
>> >>
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>>
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