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From freezer part which is at 20°C you take out 2 cm thick meat slice You set up your oven to 180°C. Assume that the steak is exposed to convection on both sides Properties of meat are given as

From freezer part which is at -20°C, you take out 2 cm thick meat slice. You set up your oven to 180°C. Assume that the steak is exposed to convection on both sides.

(Properties of meat are given as: k = 0.47 W/m.K; a = 0.13 x 10-6 m2/s and h = 156 W/ m2.K)

By using Heisler Charts,

a) Find the time for center temperature to reach 66°C

b) Determine the surface temperature when the center temperature reaches 66°C.

c) Find the temperature distribution along the steak by taking nodal spacing of 1 cm.

d) Find the temperature distributions along the steak when nodal spacing is reduced to 0.5 cm and 0.25 cm. Show your results in one plot.

Jul 31 2020 View more View Less

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