HEAT TRANSFER
Example 9: A fruit juice is heated from 25 °C to 95 °C in a parallel flow heat
exchanger at a mass flow rate of 20 ton/h. If steam enters at 110 °C and leaves at
100 °C, what is the effective heat transfer area? Assume the specific heat of the
juice is 4.3 kJ/(kg-°C), and an overall heat transfer coefficient of 1000 W/(m²-°C).
What would the result be under counter-flow conditions? Assume a correction
factor equal to 1 in both cases.
HEAT TRANSFER
Example 9
Fruit
juice (F)
20 ton/h
25 °C
Steam (S)
1.05 kg/s
110 °C
Steam (S)
1.05 kg/s
100 °C
Fruit juice
(F)
20 ton/h
95 °C
Fruit
juice (F)
20 ton/h
25 °C
Steam (S)
1.05 kg/s
100 °C
Steam (S)
1.05 kg/s
110 °C
Fruit juice
(F)
20 ton/h
95 °C
