【Daily Question】Theoretical Foundation 2020.11.04
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Multiple-choice question: The question is as shown in the figure ( ). Answer: A. Hint: Extra rewards will be given to those who can explain the solution process; the answer can be submitted there
This post was last edited by h20090630 on 2020-11-4 at 20:38. The critical thermal insulation diameter for a cylinder is as follows; therefore, this insulating material can enhance the insulation effect when used for external insulation. Option B: Reducing the total heat dissipation coefficient of the external surface will increase the critical thermally insulating diameter ； Option C: Using insulation materials with a lower thermal conductivity will reduce the critical thermal insulation diameter, but this has little practical significance ； Option D, reducing the outer diameter of the steam pipeline, is basically unrelated to the content of this question and serves as a distractor.