Another Proof - WATER WETTER does work!!
Melting Slicks
Joined: Feb 2003
Posts: 3,053
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St. Jude Donor '03,'11
Originally Posted by Twin_Turbo
they have a nice explanation for that, saying it doesn't lower bulk temperature but eliminated local boiling. Sounds like snake oil to me.
Race Director
Joined: Dec 1999
Posts: 16,945
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Yes, it is much more efficient however it's not nucleate boiling that's the problem, it's localized film boiling where you have a large blanket of hot steam contacting the casting walls. Not only is the steam much hotter it also acts as an insulator. Film boiling decreases the heat flux.
Melting Slicks
Joined: Feb 2003
Posts: 3,053
Likes: 4
St. Jude Donor '03,'11
Originally Posted by Twin_Turbo
Yes, it is much more efficient however it's not nucleate boiling that's the problem, it's localized film boiling where you have a large blanket of hot steam contacting the casting walls. Not only is the steam much hotter it also acts as an insulator. Film boiling decreases the heat flux.
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
This sounds like one of those solutions that helps but only at the margins (when you've done everything else...).
For instance, what is the effect of adding two bottles to the total coolant heat carrying capacity? To make the test more believable, you would have had to siphon off two bottles worth of water before adding the wetter.
Reminds me of an add for mileage "enhancer". Just add 1 gallon for every 10 gallons of gas. Guaranteed to increase your mileage by 10%!
For instance, what is the effect of adding two bottles to the total coolant heat carrying capacity? To make the test more believable, you would have had to siphon off two bottles worth of water before adding the wetter.
Reminds me of an add for mileage "enhancer". Just add 1 gallon for every 10 gallons of gas. Guaranteed to increase your mileage by 10%!
