If you did I missed it. But I do beleive this describes why that black
thingy in front of your engine can help cool a hot engine. Is that
sensible?? or make sense?
Larry
I only replyed because I did see a post that wind chill does not affect
inanimate objects and wanted to make it clear.
PS I do not mind the temperature (cept when the wind chills it)
>>>>On 1/17/00 5:22 PM so and so (Ron Soave) said. (And I quote:)
>> PS Wind chill does affect inanimate objects.
>
>Lars,
>Swore I sent something earlier, but I guess not. It
>affects the rate of heat transfer. If you have 35
>degree air flowing over an object that is, say, 100
>degrees, the hot object will cool faster to 35 with
>more airflow, but can't get any colder than 35. You
>got 3 types of heat transfer: sensible (described
>above, latent (evaporative or condensing, like
>sweating, where no change in temperature occurs to the
>fluid being evapoarated. E.g., water remaining at 212
>while it boils away, despite heat being added), and
>radiation. For sensible, the math 1 time:
>
>q = (massflow) * (specific heat) * (temp difference
>between hot and cold objects)
>
>For dry air, specific heat is .24 btu/lb-degF. As the
>moisture content goes up, the spec. heat increases
>with increased humidity ratio.
>
>=====
>Ron Soave
>
>IGNORE THE YAHOO MESSAGE BELOW!!!!!
>Talk to your friends online with Yahoo! Messenger.
>http://im.yahoo.com
Larry Macy
78 Midget
Keep your top down and your chin up.
Larry B. Macy, Ph.D.
macy@bblmail.psycha.upenn.edu
System Manager/Administrator
Neuropsychiatry Section
Department of Psychiatry
University of Pennsylvania
3400 Spruce St. - 10 Gates
Philadelphia, PA 19104
Ask a question and you're a fool for three minutes; do not ask a
question and you're a fool for the rest of your life.
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