Maurice Tutor

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    Argosy University/ Phoniex University/
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    Phoniex University
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Category > Management Posted 22 Nov 2017 My Price 4.00

heat transfer coefficients

Steam at 235°C is flowing inside a steel pipe (k = 61 W/m · °C) whose inner and outer diameters are 10 cm and 12 cm, respectively, in an environment at 20°C. The heat transfer coefficients inside and outside the pipe are 105 W/m2· °C and 14 W/m2· °C, respectively. Determine (a) the thickness of the insulation (k = 0.038 W/m· °C) needed to reduce the heat loss by 95 percent and (b) the thickness of the insulation needed to reduce the exposed surface temperature of insulated pipe to 40°C for safety reasons.

 

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Maurice Tutor
(5)
Status NEW Posted 22 Nov 2017 10:11 PM My Price 4.00

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