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mike[_22_] mike[_22_] is offline
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Default Wind chill and water pipes

On 1/4/2014 10:15 PM, Stormin Mormon wrote:
On 1/4/2014 11:50 PM, mike wrote:
On 1/4/2014 8:37 PM, Gordon Shumway wrote:
On Sat, 04 Jan 2014 23:01:32 -0500, wrote:

No, but it will cool faster. Wind chill is still relevant to
inanimate objects, even above freezing.

You would have been 100% correct if you had left off the word "chill."


YEP!!!
Wind CHILL is an empirical determination of what happens to humans
in cold wind. It's the same principle, but the NUMBER is relatively
useless for freezing pipes in unspecified configurations. It is likely
that lower wind chill number
will be harder on pipes, for the same wind direction relative to the
structure. How much depends.


Wind chill describes rate of heat loss of objects.
Doesn't matter if they are living or dead. Ask the
pilots in alaska, if wind chill is important when
they land a plane in cold weather. Wind chill has
a big effect on how long they can be there, before
the oil is too cold to allow the plane to restart.

In the case of water pipes, it has a big effect on
how fast they freeze. Which is the question of this
thread.

We're gonna have to disagree on that.
The thermodynamics are the same, but the conditions
are very different.
The number scrolling across your TV screen and what's happening
inside the walls of your house may be different and different from
what's happening inside
the walls of my house.