Unformatted text preview: Hint: general solution for a differential equation of the form ¿ À Á ¿Â À ¸ ÃÁ ² Ä´Å ´ÆÇÈÉÈ´Ã´ÊË´Ì´ÍÎÏËÐÌÏÐ is Á ² Ñ Ò ÑÎË´ÓÔÃ ÂÕ ¸ Ñ À ÖÊÏ´ºÔÃ Â½ 3) Electric heater wires are installed in a solid wall having a thickness of 8 cm and k =2.5 W/m. o C. The right face is exposed to an environment with h =50 W/m 2 o C and » × =30 o C, while the left face is exposed to h =75 W/m 2 o C and » × =50 o C. What is the maximum allowable heat generation rate such that the maximum temperature in the solid does not exceed 300 o C? 4) Derive an expression for the temperature distribution in a hollow cylinder with heat sources that vary according to the following relation ± ² Ì ¸ ØÉ a and b are constants. The inside and outside temperatures are T=T i at r=r i and T=T 0 at r=r 0 Assume steady state and 1D conduction...
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 Fall '09
 KIM
 Thermodynamics, Steady State, temperature distribution

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