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600 kg of a liquid is to be heated from 15 C to 150 C in a well-stirred jacketed tank by steam condensing at 170 ?C in the jacket The heat transfer surface area of the jacket

600 kg of a liquid is to be heated from 15 ?C to 150 ?C in a well-stirred, jacketed tank by steam condensing at 170 ?C in the jacket. The heat transfer surface area of the jacket is 4.5 m2 and the heat capacity of the liquid is 1850 J/kg·K. The overall heat transfer coefficient, U, varies with temperature as follows:

T (?C)

15

30

60

90

120

150

U (W/m2·K)

390

465

568

625

664

680

a) Calculate the required heating time.

b)Correlate the data in terms of the expre

 width=

where is in degrees Kelvin, and calculate the required heating time.

Jun 11 2020 View more View Less

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