Date:         Thu, 29 Jun 2006 20:01:30 -0400
Reply-To:     neil <goofymuso@YAHOO.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil <goofymuso@YAHOO.CA>
Subject:      Re: Ambient temperatures under/inside (rel. to Dometic perf.)
In-Reply-To:  <20060629213639.52362.qmail@web54708.mail.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1

I wrote:

> Van closed: 94 F
>
> Under van:  73 F
>
> Inside temp taken between 11:30 AM - 1:30 PM
>
> Under temp taken from 1:30 PM - 2:00 PM
>
> Van has been sitting over grass in same spot for a
> week.
>
> Am going shopping, so will try hotter pavement.


Went shopping. Here's results:

parked in sun 2:45- 3:30 PM

Inside: 83.5 F
Under:  76 F

Parked in total shade 3:32 - 4:00 PM

Inside: 87 F
Under:  72 F

Both "Parked" were with windows cracked same
amount.(Was around 83 in general driving around) There
was a similar breeze present, but less so in mall
parking lot than up hill at my house. Used same means
of supporting sensor. Higher "in total shade" amount
may be due to lag time in sensor, or where I located
when parked in shade.

It seems that there are consistent lower temps under
van. Who knows what it would be like in middle of
Mohave.

Any input on my horribly un-scientific findings is
welcome!

Neil.


> Used Radio Shack "Wireless" temp sensor. Was sitting
> close to frame on vented support for under reading.
>
> With slider open, both windows rolled down, dropped
> to
> 79 F. This reading was taken pretty quickly though I
> was holding it "air born" in middle of van. Likely
> temps would drop lower, but what matters is temp
> behind refer. Heat from van closed, would stay for
> some time especially with refer creating heat.
>
> Another idea.
>
> It's quite likely that the metal (frame etc.) holds
> the cooler temp. That coupled with a breeze/getting
> lucky parking in an already shady spot would be
> best.
> If it were possible, I'd hook up intake so it drew
> air
> from frame itself. Or drew air from alongside metal
> under van. Haven't looked to see if there are any
> 3-4"
> holes already (stock) in frame. (hopefully not!!)
> Maybe instead of using frame, a thickish wall tube
> of
> (? metal) could be mounted (?)
>
> In my mind, drawing air from inside frame or tube
> and
> bringing it to behind refer, then exhausting air
> from
> behind refer to outside, would work. Using metal
> would
> keep system from *possibly* drawing air affected by
> hot pavemnt. Of course I haven't done the hot
> pavement
> test yet.... ;)
>
> Going shopping now......
>
> Cheers.
>
> Neil Nicholson.
> 1981 air cooled Westfalia.
> Cheap-o web site:
>
>
http://www.members.shaw.ca/tubanick/welcomewesty.html
>
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