Re: Re: New file uploaded to Indoor_Construction

From: William Gowen <wdgowen_at_gmail.com>
Date: Tue, 22 Mar 2016 17:14:02 -0400

Very interesting info Mike. I'm sure that data like this taken at Lakehurst
would also be interesting - and probably pretty confusing.

On Tue, Mar 22, 2016 at 3:40 PM, mkirda_at_sbcglobal.net [Indoor_Construction]
<Indoor_Construction_at_yahoogroups.com> wrote:

>
>
> This file requires a bit of explanation.
>
> On Saturday it was cold, windy and raining most of the day. As Bill Gowen
> noted, the conditions inside were terrible, the worst anyone had ever seen.
>
> The data here was captured every minute over the course of both days at
> West Baden.
> The graph here is from Saturday's data.
>
> What is listed as Series1-5 here are sensors at various heights in the
> dome.
> The balloon carrying the sensors was on a table nearby where I was set up.
> The sensors were placed immediately under a 3' balloon, 5' below, 10'
> below, 20' below and at the base around 3' off the floor. I don't have the
> exact height of the balloon, but it was right at the second obvious ring on
> the dome, roughly 50' from the edge.
>
> What you can see from the data is that the temps at the top were roughly 4
> degrees cooler than the floor the entire day. Sensor 3 I have noticed
> tracks about .7 degrees warmer than the rest - if compensated for here, the
> air from 5-20' below is remarkably homogeneous, and about half a degree
> warmer than at the base of the balloon itself.
>
> What we saw happening was the center of the room was turbulent and mostly
> down drafts all day long. At the edges of the building, there was a small
> updraft. In essence, we had a torus-shaped reverse thermal going on all day
> long. The data supports this very well, showing how the air would cool as
> it rose, then fall in the center.
>
> Regards.
> Mike Kirda
>
>
Received on Tue Mar 22 2016 - 14:14:04 CET