Applying the Exergy Balance: Closed SystemsFigure P7.39 provides steady-state data for the...

Applying the Exergy Balance: Closed Systems

Figure P7.39 provides steady-state data for the outer wall of a dwelling on a day when the indoor temperature is maintained at 20°C and the outdoor temperature is 0°C. The heat transfer rate through the wall is 1100 W. Determine, in W, the rate of exergy destruction (a) within the wall, and (b) within the enlarged system shown on the figure by the dashed line. Comment. Let T0 = 0°C.

Fig. P7.39