tag:blogger.com,1999:blog-19334989.post3638512383596441334..comments2023-09-03T15:31:07.345-07:00Comments on Aquarium and Pond UV Sterilizer, Clarifier Reviews; Problems: UVC, Watts, MicrowattsStevenhttp://www.blogger.com/profile/07518380826976185580noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-19334989.post-19960494514983534872013-10-18T10:28:18.877-07:002013-10-18T10:28:18.877-07:00Here is the link for the article about UV bulb emi...Here is the link for the article about UV bulb emission<br /><br /><a href="http://www.uvsterilizerreview.com/2013/10/actual-uv-c-emission-from-uv-bulb.html" rel="nofollow">http://www.uvsterilizerreview.com/2013/10/actual-uv-c-emission-from-uv-bulb.html </a>Stevenhttps://www.blogger.com/profile/07518380826976185580noreply@blogger.comtag:blogger.com,1999:blog-19334989.post-18881287794610466302013-10-18T10:04:39.074-07:002013-10-18T10:04:39.074-07:00ObM and all- here is another article that deals wi...ObM and all- here is another article that deals with UV bulb emission. More specifically what is the actual useful output of a UV bulb. Take a look if you are interested.<br /><br />http://www.uvsterilizerreview.com/2013/10/actual-uv-c-emission-from-uv-bulb.htmlStevenhttps://www.blogger.com/profile/07518380826976185580noreply@blogger.comtag:blogger.com,1999:blog-19334989.post-32850317640603771002013-09-30T11:28:10.811-07:002013-09-30T11:28:10.811-07:00ObM;
This is correct.
However the calculations her...ObM;<br />This is correct.<br />However the calculations here assume that one is using a low pressure mercury UVC lamp. <br />The actual output is 35% useful UVC irradiation.<br /><br />This number would result in 2.8 watts, close to the 2.4 number you provided. This indicates these lamps are slightly lower output than some, but still in the ball park of being a "good" uv bulb to use.<br /><br />However if one uses a medium pressure UV bulb, the actual useful UVC output is lass than 10% and thus an 8 watt bulb of this type would produce less than 1 watt of useful UVC energy.<br /><br />My point is the numbers of say 30 gph per watt of UV bulb for level one Sterilization is ASSUMING a low pressure UV bulb.<br /><br />All bets are off if one purchases one of the many cheapie medium pressure bulbs being peddled on eBay and Amazon.<br /><br />See also:<br /><a href="http://en.wikipedia.org/wiki/Ultraviolet_germicidal_irradiation" rel="nofollow">http://en.wikipedia.org/wiki/Ultraviolet_germicidal_irradiation</a>Stevenhttps://www.blogger.com/profile/07518380826976185580noreply@blogger.comtag:blogger.com,1999:blog-19334989.post-33013303468408371532013-09-25T21:16:33.106-07:002013-09-25T21:16:33.106-07:00Hey there!
Nice article, just a reminder to peopl...Hey there!<br /><br />Nice article, just a reminder to people reading.<br /><br />You need to keep in mind is the wattage of UVC emission not the wattage of the lamp.<br /><br />I have a Phillips TUV 8W T5 UV-C lamp:<br />http://www.ecat.lighting.philips.com/l/lamps/uv/germicidal/tuv-tl-mini/928001104013_na//<br /><br />You can see in the specifications on that page:<br />This is an 8 Watt Lamp, but it only throws out 2.4 Watts of UVC Radiation.<br /><br />So calculations should be based on 2.4 Watts (not 8).<br /><br />Same goes for a 30 watt T8 lamp. <br />According to one spec sheet from Phillips, The UVC Radiation for their 30W T8 is 12 watts.<br /><br />Good luck everyone!ObMnoreply@blogger.comtag:blogger.com,1999:blog-19334989.post-64342290751203579882012-05-04T13:44:22.293-07:002012-05-04T13:44:22.293-07:00I've found that chart at a number of sites and...I've found that chart at a number of sites and was trying to determine who's correct. I'd like to use your chart as the numbers present better results for kill rates, but whatever the correct numbers are, need to be found.<br />Here is what Westinghouse presents: http://www.electro-tech-online.com/custompdfs/2012/02/UVC20Selection20and20Information20Guide.pdf<br />This is from Carrier's website.Sterile Conditioner UVhttps://www.blogger.com/profile/11964385841488953682noreply@blogger.comtag:blogger.com,1999:blog-19334989.post-79246278514652907862012-05-04T12:43:48.004-07:002012-05-04T12:43:48.004-07:00This came from a website that has since been "...This came from a website that has since been "parked" (as happens quite often)<br /><br />If you have a chart your feel is more accurate, please feel free to share.<br />My findings (as stated here) do not necessarily agree with this table, which it is only meant as a guide for hot cathode UVC lampsCarlhttps://www.blogger.com/profile/14216309494056722110noreply@blogger.comtag:blogger.com,1999:blog-19334989.post-4906193192475983902012-05-04T10:47:08.990-07:002012-05-04T10:47:08.990-07:00Please advise where the Ultraviolet Intensity Fact...Please advise where the Ultraviolet Intensity Factor table is from. These numbers are quite a bit higher than the Westinghouse Sterilamp Publication that I have been using.<br />ThanksSterile Conditioner UVhttps://www.blogger.com/profile/11964385841488953682noreply@blogger.com