Answer to Question #193105 in Mechanical Engineering for Ray

Question #193105

QUESTION 3: [25]

A [a] m x [b] m double-pane window consists of two [c]-mm-thick layers of glass

(k = [d] W/m·K) that are separated by a [e] mm air gap (kair = [f] W/m·K). The heat flow

through the air gap is assumed to be by conduction. The inside and outside air

temperatures are [g]°C and [h]°C, respectively, and the inside and outside heat

transfer coefficients are [i] and [j] W/m2


3.1) Draw a representation of the setup with the thermal resistance network (5)

3.2) Determine the daily rate of heat loss through the window in steady operation. (15)

3.3) Calculate the temperature difference across the largest thermal resistance. (

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