Rich,
I don't know how you will get an exact formula. The various shades of car
color, interior color, roof thickness, and window tinting, & interior
material will give you too broad of a result. Even if you measured multiple
cars at the same conditions with the different fore-mentioned details and
averaged them, the skew would be so far off that the formula wouldn't be
worth the effort.
My thoughts...if it's 90 degrees outside...the inside is going to be a lot
hotter!
Don't waste your time ...unless you're doing this for school.
Dan Dwelley
:o)
-----Original Message-----
From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
Behalf Of Richard D Arnold
Sent: Wednesday, December 09, 1998 9:51 AM
To: mgs@autox.team.net; spridgets@autox.team.net
Subject: Way Off-Topic -- passive solar heating
My apologies in advance for wandering so far afield on this one....
Thought I might draw on the vast and varied knowledge of the list -- I am
working on a project that involves being able to prove that the
temperature inside a closed vehicle during the summer is substantially
higher than outside. Given the number of warnings we hear each summer
about not leaving kids or animals inside a locked vehicle, you'd think
that there would be a quantifiable source for this, but there doesn't
appear to be.
I understand that this is called passive solar heating, and is similar to
the greenhouse effect. I also understand that there are a number of
different factors that come into play. What I am looking for is a
formula or published table from a reputable source that says that if it
is X degrees outside a car, on the average it will be Y degrees inside
the car. If a formula is used, I need to be able to authenticate it.
The only facts I have is that the outside temperature reached a high of
85 degrees F, the humidity was was 80%, and the car was gold with a tan
interior. It sat in one spot, unshaded, from 3:30 am (outside temp 70
F), through 3:00 pm (85 F) ( the outside temp reached 80 F by noon that
day).
I already checked with assorted animal rights groups (made sense at the
time).
Any suggestions?
Rich Arnold
Council Bluffs, Iowa
'74.5 RB MGB "Maggie"
'78 Chevy Half-Ton "Waltzin' Matilda"
'79 Midget "Miss Molly"
richard.arnold@juno.com or rdarnold@neonramp.com
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