10.1. In a food processing plant a brine solution is heated from 6°C to 12 °C in a double-pipe heat exchanger by water entering at 50 °C and leaving at 40 °C at the rate of 0.166 kg/s. If the overall heat transfer coefficient is 850 W/m². °C, what heat exchanger area is required for (a) parallel flow and (b) counterflow? . 10.3. In a double-pipe counterflow heat exchanger, water at the rate of 60 lbm/min is heated from 65 °F to 95 °F by an oil having a specific heat of 0.36 Btu/lbm °F. The oil enters the exchanger at 200 °F and leaves at 140 °F. Determine the heat exchanger area for an overall heat transfer coefficient of 50 Btu/h-ft². °F • The total heat transfer to the water, using c, = 1.0 Btu/lb„ “F, is
10.1. In a food processing plant a brine solution is heated from 6°C to 12 °C in a double-pipe heat exchanger by water entering at 50 °C and leaving at 40 °C at the rate of 0.166 kg/s. If the overall heat transfer coefficient is 850 W/m². °C, what heat exchanger area is required for (a) parallel flow and (b) counterflow? . 10.3. In a double-pipe counterflow heat exchanger, water at the rate of 60 lbm/min is heated from 65 °F to 95 °F by an oil having a specific heat of 0.36 Btu/lbm °F. The oil enters the exchanger at 200 °F and leaves at 140 °F. Determine the heat exchanger area for an overall heat transfer coefficient of 50 Btu/h-ft². °F • The total heat transfer to the water, using c, = 1.0 Btu/lb„ “F, is
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Author:DUNLAP, Richard A.
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Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy
Section: Chapter Questions
Problem 20P
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Transcribed Image Text:10.1. In a food processing plant a brine solution is heated from 6°C to 12 °C in a double-pipe heat
exchanger by water entering at 50 °C and leaving at 40 °C at the rate of 0.166 kg/s. If the overall
heat transfer coefficient is 850 W/m². °C, what heat exchanger area is required for (a) parallel
flow and (b) counterflow?
.
10.3. In a double-pipe counterflow heat exchanger, water at the rate of 60 lbm/min is heated from
65 °F to 95 °F by an oil having a specific heat of 0.36 Btu/lbm °F. The oil enters the exchanger
at 200 °F and leaves at 140 °F. Determine the heat exchanger area for an overall heat transfer
coefficient of 50 Btu/h-ft². °F
•
The total heat transfer to the water, using c, = 1.0 Btu/lb„ “F, is
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