Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Engineering Posted 14 May 2018 My Price 5.00

wood studs

A 10-cm-thick wall is to be constructed with 2.5-mlong wood studs (k 0.11 W/m · °C) that have a cross section of 10 cm x 10 cm. At some point the builder ran out of those studs and started using pairs of 2.5-m-long wood studs that have a cross section of 5 cm 10 cm nailed to each other instead. The manganese steel nails (k = 50 W/m · °C) are 10 cm long and have a diameter of 0.4 cm. A total of 50 nails are used to connect the two studs, which are mounted to the wall such that the nails cross the wall. The temperature difference between the inner and outer surfaces of the wall is 8°C. Assuming the thermal contact resistance between the two layers to be negligible, determine the rate of heat transfer (a) through a solid stud and (b) through a stud pair of equal length and width nailed to each other. (c) Also determine the effective conductivity of the nailed stud pair.

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Maurice Tutor
(5)
Status NEW Posted 14 May 2018 02:05 PM My Price 5.00

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