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Problem 1- Consider a wall in 1 m area with a thickness of 20 cm and a thermal conductivity of kw=0.8 W/m"C. The outside of this wall is covered with a 5 cm insulation board with a thermal conductivity of k 0.1 W/m"C. When the indoor air is kept at 20°C while the outdoor air is -10°C, determine the heat transfer rate through the wall. Take the heat transfer coefficients on the inner and outer surfaces of the wall as hout 15W/m"C and h-10 W/m"C. (30P)
wa Problem 1- Consider a wall in 1 m' area with a thickness of 20 cm and a thermal conductivity of kwat=0.8 W/m°C. The outside of this wall is covered with a 5 cm insulation board with a thermal conductivity of kins=0.1 W/m°C. When the indoor air is kept at 20°C while the outdoor air is -10°C, determine the heat transfer rate through the wall. Take the heat transfer coefficients on the inner and outer surfaces of the wall as hout=15W/m2°C and hin=10 W/m2°C. (30P) hin hon - الامير - Sen 20 Problem 2. Corida