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  • Results 1 to 4 of 4

    Thread: Electrodeless UV lamps

    1. #1
      DragonFireSG is offline Senior Member
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      Electrodeless UV lamps

      Anyone explored the use of induction type UV lamps?

      Saw this monster the other day looking for UV lamp options.
      The smallest they have is a 300W unit.

      https://www.alibaba.com/product-deta...412252142.html

      Being electrodeless these guys seem to be more energy efficient and long lived.
      I've seen articles talking about how they are gaining popularity for industrial and agricultural water treatment.
      Downside I hear is EM noise caused by the high frequency coils used to energize the tubes.
      Sticking the power supply in a grounded metal case should sort that out.

      I figure one of these per RDF will nuke the hell out of any organism looking to grow a slime coat on the filter mesh.



      ===

      Generally speaking it seems that LEDs are the future for UVC disinfection.
      No mercury, a lot less heat, and an ultra long lifespan.

      For some reason uptake has been somewhat slow.

    2. #2
      DragonFireSG is offline Senior Member
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      I'm going ahead with an order of two of the XPES branded 300W UVC induction lamps.

      I heard from a local food service process engineer that they have been used to good effect for commercial disinfection, and indeed have an extremely long service life - as long as the electronic ballast stays in good order. The ballast units for these lamps are external, and can be replaced easily.

      The lamp tubes themselves are completely sealed unlike traditional UV tubes which have an electrode intruding into the tube. 60,000hrs service life is the claim, which is very much longer than the 9000hr average from the tubes we are familiar with.

      The tubes are fairly large at 540mm x 190mm x 60mm, and can be completely submerged full time. I'm going to install one in each channel leading to the RDF.

      They cost a little over US$300 each with an external ballast unit. I haven't asked how much a spare ballast unit will cost.

    3. #3
      icu2's Avatar
      icu2 is offline Administrator ~ WWKC Treasurer
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      The link to the UV just shows "This product can't be shipped to your region"...
      --Steve

    4. #4
      DragonFireSG is offline Senior Member
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      I didn't actually use that original link.

      http://www.xpesuvc.com/ is the one I am dealing with right now.

      Probably boomtown right now for them with the virus running rampant. The english website is a relatively new development.
      Last edited by DragonFireSG; 01-22-2021 at 07:45 PM.

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