A vegetable soup, with specific heat capacity 4000 J/(kg. K), is being heated from 16 to 95 °C inside a 300 mm pipe by steam. This steam enters the heat exchanger at 130 °C with 93.0% dryness and exits at 80.0% dryness at a constant flow rate of 0.1 kg/s. If the average overall heat transfer coefficient, U, is 2000 W/(m². K), calculate: The rate of heat transfer in the heat exchanger: kW The log-mean temperature difference in the heat exchanger: °C
A vegetable soup, with specific heat capacity 4000 J/(kg. K), is being heated from 16 to 95 °C inside a 300 mm pipe by steam. This steam enters the heat exchanger at 130 °C with 93.0% dryness and exits at 80.0% dryness at a constant flow rate of 0.1 kg/s. If the average overall heat transfer coefficient, U, is 2000 W/(m². K), calculate: The rate of heat transfer in the heat exchanger: kW The log-mean temperature difference in the heat exchanger: °C
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Transcribed Image Text:A vegetable soup, with specific heat capacity 4000 J/(kg. K), is being heated from 16 to 95 °C
inside a 300 mm pipe by steam. This steam enters the heat exchanger at 130 °C with 93.0%
dryness and exits at 80.0% dryness at a constant flow rate of 0.1 kg/s.
If the average overall heat transfer coefficient, U, is 2000 W/(m². K), calculate:
The rate of heat transfer in the heat exchanger:
kW
The log-mean temperature difference in the heat exchanger:
°C
The required length of the heat exchanger:
m
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