thomas stadelmann

This is a demo of our new thermal plume simulation that we're incorporating into all of Nukit's CFD aerosol modeling. With the current pathogen chamber tests that Nukit obtains from third-party labs, we measure how well Far-UVC removes bioaerosols that are introduced into the chamber through a port in the wall. This is a good measure of overall effectiveness, and all our Far-UVC products are validated in this way and the data provided to the public on our site - Nukit222.com (we are, so far, the only company willing to put our money where our mouth is in this way). The only problem with this testing method, is that it does not test one of the main strengths of Far-UVC- the ability to mitigate near-field transmission- the transmission of pathogens that occurs at close range between individuals. This is where computational fluid dynamics (CFD) modeling comes in. The same powerful software that is used to model the flow of air (a fluid) to make sure an airplane design will fly before it's even been built, can model the air we exhale and how it will respond to Far-UVC with similar accuracy- if it's given enough data to work with. One of the trickier things to calculate with this kind of modeling is the human thermal plume- how the air we exhale rises and then falls as it cools, and how the heat our bodies emit pulls air- and any suspended aerosols, upward. Knowing how the air we exhale moves before it's inevitably inhaled by someone else lets us figure out how much Far-UVC we need to inactivate the pathogens that air contains before it's inhaled, and how that Far-UVC should be arranged. One popular method of implementing Far-UVC is with downlights. The idea is that the vertical cones of light would interrupt the exhalation passing horizontally between individuals. But, if the exhalation is not strictly lateral, if most of it is rising first on a thermal plume, it might miss a few staggered vertical cones of Far-UVC, and having emitters in the corners, pointed slightly horizontally to cover a broad area and more of the upper room, might inactivate pathogens as they rise before they cool and fall- a bit like Upper-Room GUV but lower. The next step will be to model this with a number of “breathing” figures, sitting and standing, and seeing, with the same total Far-UVC wattage, what arrangement of emitters results in the lowest inhalation of exhaled active bioaerosols. This model shows: - No ventilation (0 ACH, it will be 3 ACH in the actual model) - Air temperature: 25 C - Skin temperature: 34 C - Nostril temperature: 36 C If you’d like to read more about human thermal plumes and their role in how bioaerosols propagate, see: onlinelibrary.wiley.com/doi/10.1155/20… sciencedirect.com/science/articl… oda.oslomet.no/oda-xmlui/bits… Nukit Torches are no longer sold- we will still honor warranties on them. The Torch 2 will be available in the next 60 days or so. It is more powerful, lower cost per watt, and has replaceable emitters and batteries. For US residents we currently have a limited number of Nukit Lanterns in stock in our US warehouse, that are tariff free. This may be the last chance to obtain them without tariffs. nukit222.com/products/nukit… Outside of the US you can buy them here: nukit222.com/products/nukit… A small number of this batch of Lanterns have defective buttons. If you have any issues, please contact us. Our apologies; we are trying very hard to make Far-UVC affordable for everyone, and patient, understanding early adopters help make that happen. We do not check this account often, if you have any questions about Far-UVC kindly contact us through our website.

Soeben erschienen in der Deutschen Richterzeitung: „In den Händen Erdoğans – Die Rolle der Justiz in der neuen Türkei“ Mein zweiter Beitrag ist jetzt online verfügbar: ➡️ richterzeitung.de/ein-den-haende… Danke an @Richterbund für die Plattform – und an alle Kolleginnen & Kollegen, die für #Rechtsstaatlichkeit und #richterlicheUnabhängigkeit einstehen. #Justiz #Türkei #DRiZ @Richterbund @spdbt @dwnews @dw_turkce @Ozguruz_org @RichterbundHess @bremischer

President @realDonaldTrump is the Commander-in-Chief