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Visualizing invisible steam video

ethicalpaul
ethicalpaul Member Posts: 6,893

My next installment in "dumb boiler tricks".

In this one I saw two really interesting behaviors.

  1. The balls create a localized zone of high pressure under the balls, then lower pressure in and above them. I believe the condensate that we see in this video is steam that condenses due to the higher pressure zone under the balls. Then that condensate gets blown upward where we can see it in the glass. Weird! It's not boiler water because my boiler water currently has 8-way in it and is noticeably purple.
  2. Even with the the left supply valve completely closed, and the balls pressed against the top of the sight glass, greatly limiting the area where the steam can flow, flow it did, with barely any increase in pressure (never going over 1.5" of W.C.). This goes to show how compressible the steam is—it can get through very small spaces at the flow rates and pressures of residential steam.

NJ Steam Homeowner.
Free NJ and remote steam advice: https://heatinghelp.com/find-a-contractor/detail/new-jersey-steam-help/
See my sight glass boiler videos: https://bit.ly/3sZW1el

delcrossvPC7060

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