1. A solid metal ball has diameter 2 cm (k = 42.6w/m°C, a = 0.043m²/h), initially temperature at 500°C. It is then place

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1 A Solid Metal Ball Has Diameter 2 Cm K 42 6w M C A 0 043m H Initially Temperature At 500 C It Is Then Place 1 (129.12 KiB) Viewed 21 times

1. A solid metal ball has diameter 2 cm (k = 42.6w/m°C, a = 0.043m²/h), initially temperature at 500°C. It is then placed in the middle of a stream of very fast flowing, cool liquid of temperature 45°Cand constant every time. Heat transfer to an environment with convective heat transfer coefficient 200 w/m²°C. The cooling process was unsteady state. a) How profile temperature in the ball as function t and r? b) Solution with separation method c) Solution with Laplace Transform