题目内容
To enhance the heat transfer, which side is most effective?
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For the process of heat transfer through a flat wall, regardless of the thermal resistance of the wall, if the convective heat transfer coeifficient at two sides are h1 and h2, and h1> h2, then which of the following statements about the overall heat transfer coeifficient k is true?
Which of the following statement is the reason to introduce heat trasfer process
If the temperatures of the cold and hot fluids remain unchanged, how will the temperature of the heat transfer surface change after fouling on the hot fluid side of the heat exchanger?
How will the heat loss change by thickening the insulation layer outside the pipe?
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