Maurice Tutor

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

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 15 Oct 2017 My Price 6.00

furnace rests on a framed platform

4.26   A cubical glass melting furnace has exterior dimensions of width W = 5 m on a side and is constructed from refractory brick of thickness L = 0.35 m and thermal conductivity k = 1.4 W/m · K. The sides and top of the furnace are exposed to ambient air at 25 C, with free convection characterized by an average coefficient of

h = 5 W/m2 · K. The bottom of the furnace rests on a framed platform for which much of the surface is exposed to the ambient air, and a convection coefficient of h = 5 W/m2 · K may be assumed as a first approxi- mation. Under operating conditions for which combus- tion gases maintain the inner surfaces of the furnace at 1100 C, what is the heat loss from the furnace?

4.27   A hot fluid passes through circular channels of a cast iron platen (A) of thickness LA = 30 mm which is in poor contact with the cover plates (B) of thickness LB = 7.5 mm. The channels are of diameter D = 15 mm

 

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Maurice Tutor
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Status NEW Posted 15 Oct 2017 11:10 AM My Price 6.00

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