Re: Air Flow

[Emily Russell <linninniach gmail com>]

Very interesting to see, thanks for measuring!!

Emily



On Mon, May 24, 2021 at 12:01 PM Austin Paul <austinjpaul gmail com> wrote:

> Hi all,
>
> I'm attaching the data I gathered from Ed's CO2 monitor yesterday at both
> churches (15 minutes of 4-person ringing at each, raise and lower
> included).
> The y-axis should be PPM, and the X-axis is seconds.
>
> As a vaccinated band, we were ringing on the front 4 at both towers. The
> sensor was placed on boxes near the center of the ring at roughly waist
> height. Windows were open.
>
> At Advent, my laptop went to sleep after a few minutes, and then resumed
> plotting when I restarted it after our 15 minutes of ringing was done. 
> This
> explains the jump in the plot, but unfortunately that missing interval is
> indeed missing.
>
> You might notice levels at ON going up and down, but it's all within a 
> very
> tight range. My takeaways here, fwiw, are that ventilation at ON is quite
> good (assuming some cross breeze), and Advent less so.
>
> John and I will be reaching out about sign-ups for resuming practice and
> more-standard service ringing to begin next weekend (probably... final
> clearance from churches still tbc). The tenor at Old North is still
> sans-staple, but the fix is moving forward again.
>
> Thanks all for filling out the survey earlier this month. Looking forward
> to ringing with you all again soon!
>
> Best,
> Austin
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <
> http://cosmos.phy.tufts.edu/mhonarc/boston-change-ringers/attachments/20210524/2433b5f4/attachment.htm
> >
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: 5-23-ON-co2.png
> Type: image/png
> Size: 22618 bytes
> Desc: not available
> URL: <
> http://cosmos.phy.tufts.edu/mhonarc/boston-change-ringers/attachments/20210524/2433b5f4/attachment.png
> >
> -------------- next part --------------
> A non-text attachment was scrubbed...
> Name: 5-23-advent-co2.png
> Type: image/png
> Size: 18376 bytes
> Desc: not available
> URL: <
> http://cosmos.phy.tufts.edu/mhonarc/boston-change-ringers/attachments/20210524/2433b5f4/attachment-0001.png
> >
> _______________________________________________
> Boston-change-ringers mailing list
> Boston-change-ringers cosmos phy tufts edu
> https://cosmos.phy.tufts.edu/mailman/listinfo/boston-change-ringers
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
<http://cosmos.phy.tufts.edu/mhonarc/boston-change-ringers/attachments/20210524/b942cd29/attachment.htm>