Derive an expression for the optimum economic thickness

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Derive an expression for the optimum economic thickness of insulation to put on a flat surface if the annual fixed charges per square foot of insulation are directly proportional to the thickness,

(a) neglecting the air film,

(b) including the air film. The air-film coefficient of heat transfer may be assumed as constant for all insulation thicknesses

Reference no: EM131061486

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