A hot dog can be considered to be a 12 cm long cylinder whose diameter is 2 cm and whose properties are Iuml 980 kg m 3 , c p 3 9 kJ kg middot K, k 0 76 W m middot K, and Icirc plusmn 2 Atilde 10 7 m 2 s A hot dog initially at 5 deg C is dropped into boiling water at 100 deg C The heat transfer coe...

A hot dog is to be cooked by dropping it into boiling water The time of cooking is to be determined ...

A hot dog can be considered to be a 12-cm-long cylinder whose diameter is 2 cm and

Question:

A hot dog can be considered to be a 12-cm-long cylinder whose diameter is 2 cm and whose properties are Ï = 980 kg/m³, c_p= 3.9 kJ/kg·K, k = 0.76 W/m·K, and Î± = 2 Ã— 10^-7m²/s. A hot dog initially at 5°C is dropped into boiling water at 100°C. The heat transfer coefficient at the surface of the hot dog is estimated to be 600 W/m²·K. If the hot dog is considered cooked when its center temperature reaches 80°C, determine how long it will take to cook it in the boiling water.

Hot dog Water, 100°C