zenner Member

  • Member since May 30th 2016
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  • zenner

    Post
    One possible error source is the pressure inside the tube. If pressure changes, thermal resistance changes and the formula does not give correct answer. But if nothing moves and pressure is the same, just measuring one point should be ok?
  • zenner

    Thread
    In parkhomov translated paper, there is curve power vs. temperature, and it has been fitted to polynomial with terms for temp difference and also for absolute temp for T^4. Compared to Stefan-Bolzmann law, there is rather big difference in the…