A nickel steel rod 8 cm outer diameterorginally at a


QUESTION - 3 A nickel steel rod 8 cm outer diameterorginally at a temperature of 300 Troc is suddenly immersed in a liquid at 100oc for which the convective heat transfer co efficient is 100 w/m2 0k . what is the time required for the rod to reach a temperature of 150oc ? (hint - calculate the biot number ad make the necessary assumption ).

Properties of nickel steel k = 80 w/mk
? = density =8000 kg/m3
Cp = 0.5 kj/kg ok

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Chemical Engineering: A nickel steel rod 8 cm outer diameterorginally at a
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