The flow station was between the damper/closure and the fan on the intake side. The measurements increase as the rate of blockage increases from partial to near full. ie: increasing damper angle, then blocking intake. It is a lot of work to change things around to measure velocity on the...
Blocking the intake of an air flow station I built results in the FPM shooting up along with the vacuum. ie: wide open both ends 4" pipe with inline fan reads . 5" wc / -190 pa / 3700 fpm on instruments monitoring intake pipe. Blocking the intake increases both the vacuum to -470 pa and...
Great thanks, I get that other elements emit Alpha decay but are they creating new particles or changing existing particles. Where does the Alpha particle come from.
Wow, tons of dedicated geeky geniuses. Hoping for answers on the finer points of Radon physics. Are the Alpha particles generated by Rn 222 decay actually new particles or some existing helium atoms with the electrons knocked off...or something else?