Consider a wall 4 m high, 8 m long and 0.22 m thick whose representative cross-section is given in Fig.
figure. The thermal conductivities of the various materials used, in W/m - °C, are:
KA= kr = 4,
KB=6,
kc = 16,
kD= 12 and kE=36.
The left and right wall surfaces are maintained at the uniform temperatures of 300°C and 100°C, respectively.
of 300°C and 100°C, respectively. If the heat transfer through the wall is one-dimensional, determine a) the heat transfer rate through the wall; b) the heat transfer rate through the wall; and c) the heat transfer rate through the wall.
heat transfer rate through it; b) the temperature at the point where sections B,
D and E, and c) the temperature drop across section F. Neglect any contact resistances between the interfaces.
interfaces.
100°C 300°C 1c D A 4 cm 6 cm F te 1 B 4 cm El to 6 cm 4 cm 8 m 1 cm 5 cm 10 cm 6 cm
Consider a wall 4 m high, 8 m long and 0.22 m thick whose representative cross-section is given in Fig. figure. The ther
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Consider a wall 4 m high, 8 m long and 0.22 m thick whose representative cross-section is given in Fig. figure. The ther
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