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1.In a stirred duplicator 5 tonns of liquid (cp= 3,35 KJ/kgK) shall be heated from 20...

1.In a stirred duplicator 5 tonns of liquid (cp= 3,35 KJ/kgK) shall be heated from 20 °C to 80°C with the help of 100°C steam. Surface area between the steam and liquid is 10 m2, heat transfer coefficient is 1163 W/m2K. You can use the equations of heat transfer through flat wall) 15 points   

A, How much heat is needed for the process? (5)

B, How much is the heat flow through the wall? (8)

C, How much time is needed? (2)

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