Danny's Summary: more water injection

Thu May 7 01:43:16 GMT 1998

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Danny gave us a good summary of the water injection discussion to date.  He asked about post-ignition steam properties and about water expansion versus NO and CO2.

I would like to add.  It can be shown that ignition temp and pressure can be (approximate...if anyone wants to see the source, write me outside of the group) around 5000 °R and 750 PSIA.  By using the Peng/Robinson Equation of State, water, NO, and CO2 exhibit the following vapor volumes.  The higher the vapor volume, obviously, the greater the expansion force.

water: 4544 cm3 per mole 
NO: 4499 cm3 per mole    
CO2: 4548 cm3 per mole

To make a long story short...all inert gases appear to have the same effect here??  These numbers depend on critial pressure, critical temp, and acentric factor.  This is by no means an ideal gas calculation.  Apparently at these conditions, it doesnt matter what compound is present.

oh well..

Wayne Strasser
Chemical Engineer
2-Stroke EFI Patent Pending
Christ is "the Way and the Truth and the Life.":  John 14:6  

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<DIV><FONT color=#000000 size=2>Danny gave us a good summary of the water 
injection discussion to date.&nbsp; He asked about post-ignition steam 
properties and about water expansion versus NO and CO2.</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT>&nbsp;</DIV>
<DIV><FONT size=2>I would like to add.&nbsp; It can be shown that ignition temp 
and pressure can be (approximate...if anyone wants to see the source, write me 
outside of the group) around 5000 &deg;R and 750 PSIA.&nbsp; By using the 
Peng/Robinson Equation of State, water, NO, and CO2 exhibit the following vapor 
volumes.&nbsp; The higher the vapor volume, obviously, the greater the expansion 
force.</FONT></DIV>
<DIV><FONT size=2></FONT>&nbsp;</DIV>
<DIV><FONT size=2>water: 4544 cm3 per mole </FONT></DIV>
<DIV><FONT size=2>NO: 4499 cm3 per mole&nbsp;&nbsp;&nbsp; </FONT></DIV>
<DIV><FONT size=2>CO2: 4548 cm3 per mole</FONT></DIV>
<DIV><FONT size=2></FONT>&nbsp;</DIV>
<DIV><FONT size=2>To make a long story short...all inert gases appear to have 
the same effect here??&nbsp; These numbers depend on critial pressure, critical 
temp, and acentric factor.&nbsp; This is by no means an ideal gas 
calculation.&nbsp; Apparently at these conditions, it doesnt matter what 
compound is present.</FONT></DIV>
<DIV><FONT size=2></FONT>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>oh well..</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT color=#000000 size=2>Wayne Strasser<BR>Chemical Engineer<BR>2-Stroke 
EFI Patent Pending<BR>Christ is &quot;the Way and the Truth and the 
Life.&quot;:&nbsp; John 14:6&nbsp; </FONT></DIV></BODY></HTML>

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