Question:

A hollow cylindrical pipe is insulated using asbestos insulation (k = 0.15 W/mK). If outside heat transfer coefficient is 75 W/m2K, then critical radius of insulation is:

Updated On: Mar 17, 2025
  • 0.5 cm
  • 0.4 cm
  • 0.2 cm
  • 0.45 cm
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The Correct Option is C

Solution and Explanation

The correct option is (C): 0.2 cm
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