Maurice Tutor

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

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 11 Oct 2017 My Price 6.00

window of a patio door

During a winter day, the window of a patio door with a height of 1.8 m and width of 1.0 m shows a frost line near its base (Fig. P17.85). The room wall and air temperatures are 15°C.

(a) Estimate the heat transfer through the window due to free convection and radiation. Assume the window has a uniform temperature of 0°C and the emissivity of the glass surface is 0.94. If the room has electric baseboard heating, estimate the corresponding daily cost of the window energy loss for a utility rate of 0.08 $/kW . h.

(b) Explain why the window would show a frost layer at the base rather than at the top.

Answers

Maurice Tutor
(5)
Status NEW Posted 11 Oct 2017 09:10 AM My Price 6.00

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