heat transfer
heat transfer
The double-glazed window with a height of 1.2m and a width of 2m has a gap of stagnant air (k = 0.026W / m ° C) with a width of 12mm between the glass of 3mm (k = 0.78W / m ° C). On a day when the outside temperature is kept at 24 ° C, find the continuous heat transfer rate and inner surface temperature in this glass window. (Take the heat transfer coefficients h1 = 10W / m² ° C and h2 = 25W / m² ° C on the inner and outer surface of the window and neglect the number of heat transfer coats by radiation)
b) Interpret how the heat transfer would have been if there was a vacuum between the two glasses (air was completely discharged).
