The Search for a Fleece Replacement – A Close Look at Active Insulation and the role of MVTR
Sep 15, 2021 at 2:03 am #3727406Garett ABPL Member
I’d Love to second Brett Peugh’s kind request for a list if at all possible it would be a great resource. Thank You for Your time and energy! : PSep 18, 2021 at 1:54 pm #3727673Erik NorsemanBPL Member
Curious about the MTVR of the houdini air vs. houdini. I note that in this other paper of yours, the MVTR of the houdini is considerably lower than that stated in this article (about half the rate). Can you explain the difference, or where I may be mistaken in my comparison?
ErikSep 18, 2021 at 3:02 pm #3727685Stephen SeeberBPL Member
Good observation. At the time that early article was written, my MVTR test was performed without an interior circulating fan. Shortly after that article was written, I introduced an interior circulating fan, This fan reduces the effective resistance to vapor transmission of the air layer between the top of the permeation kettle surface and the test garment. As a result, the measured MVTR went up for all subsequent tests. So, the values I have obtained under the present testing procedure for the Houdini is 2250 g/m2/24hr and, the Houdini Air is 3120 g/m2/24hr.Sep 18, 2021 at 6:44 pm #3727695Steve HBPL Member
Stephen, Have you had a chance to test the Visp yet? Thanks.Sep 19, 2021 at 8:25 am #3727722Erik NorsemanBPL Member
Thank you!Sep 20, 2021 at 3:57 am #3727814
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