Maurice Tutor

(5)

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About Maurice Tutor

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Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 398 Weeks Ago, 1 Day Ago
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Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Mar 2018 My Price 5.00

thick aluminum alloy

Consider a 1000-W iron whose base plate is made of 0.5-cm-thick aluminum alloy 20211–T6 ( = 2770 kg/m3, cp = 875 J/kg · °C, α = 7.3 x 105 m2/s). The base plate has a surface area of 0.03 m2. Initially, the iron is in thermal equilibrium rium with the ambient air at 22°C. Taking the heat transfer coefficient at the surface of the base plate to be 12 W/m2 · °C and assuming 85 percent of the heat generated in the resistance wires is transferred to the plate, determine how long it will take for the plate temperature to reach 140°C. Is it realistic to assume the plate temperature to be uniform at all times?

Answers

Maurice Tutor
(5)
Status NEW Posted 21 Mar 2018 03:03 AM My Price 5.00

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