[Diy_efi] WI, methanol, and corrosion

[Chris Wilson]

Wednesday, January 22, 2003, 2:25:39 PM, you wrote:


The argument continues, see below, the first lines are my comments:

~~~~~~~~~~ Quoted ~~~~~~~~~~~~~~~~~~~~~~

> If you can get the charge air temp under boost below
> 40 degrees C on a GT4 you are doing well,  neither the
> methanol nor water will not condense out.

Water can exist in the liquid phase at temperatures up to several 
hundred degrees if pressure is increased and sufficient water is 
present to saturate the air. Simply concluding that air at 40C cannot 
cause water to condense out is incorrect.

> Have you any idea what velocity it's moving at, as well?

Evaporation has little to do with flow velocity except where pressure 
changes occur. One normally observes that fast airflow causes fast 
evaporation (e.g. hair-dryer) because the airflow is normally 
constantly being resupplied with lower humidity air. If you 
constantly resupply the water too then you would observe that the 
amount of liquid present can remain constant.



-- 
Best regards,
 Chris Wilson                           mailto:chris at formula3.freeserve.co.uk
                                       http://www.formula3.freeserve.co.uk


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