Calculate the rate of heat transfer from a 1.5 m $\times$ 1.0 m window frame that is made of aluminum.The thickness of the frame is 1 mm and measures 3 cm from inside to outside.The inside room temperature is 25 $\circ$ C and outside temperature is 0 $\circ$ C.
A)988 W
B)2964 W
C)1482 W
D)494 W
E)none of the above

Question

Quizplus · Accepted Answer

The rate of heat transfer is given by the equation:Q = k * A * (T1 - T2) / dwhere:Q is the rate of heat transfer in wattsk is the thermal conductivity of the material in W/m-KA is the area of the window frame in m2T1 is the temperature on the inside of the window frame in KT2 is the temperature on the outside of the window frame in Kd is the thickness of the window frame in mIn this problem, we are given the following information:k = 237 W/m-K (for aluminum)A = 1.5 m * 1.0 m = 1.5 m2T1 = 25°C + 273.15 = 298.15 KT2 = 0°C + 273.15 = 273.15 Kd = 1 mm = 0.001 mPlugging these values into the equation, we get:Q = 237 W/m-K * 1.5 m2 * (298.15 K - 273.15 K) / 0.001 mQ = 988 WTherefore, the rate of heat transfer from the window frame is 988 W.

Calculate the Rate of Heat Transfer from a 1 ×\times× 10 M Window Frame That Is Made of Aluminum

Calculate the Rate of Heat Transfer from a 1 $\times$ 10 M Window Frame That Is Made of Aluminum