anhthule7766 anhthule7766
  • 30-05-2024
  • Engineering
Answered

70-mm inner diameter and 4 mm wall thickness of a tube in kept vertically at 20C quiscent air. Tube wall is maintained at 200 C temperature and emissivity value of tube wall material is 0.85. What is the length of this tube if total heat transfer rate from this tube Surface is 2 kw.



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