3. Kerosene is to be preheated in a double-pipe heat exchanger before being pumped to a...

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3. Kerosene is to be preheated in a double-pipe heat exchanger before being pumped to a distillation facility. The kerosene flow rate is 8000 kg/hr and it is to be heated from 24 to 35 °C. Distilled water is available at 95 °C from the condensed exhaust of a small steam turbine, and its flow rate can be controlled. Select an appropriate double-pipe heat exchanger made of standard copper tubing and complete a thermal analysis of the double- pipe heat exchanger of your chosen by employing the log-mean temperature difference method. Table 3.1 Properties of Kerosene: Im (°C) 30 SG 0.73 Cp (J/kg-K) 2470 (cp) 0.40 k (W/m-K) 0.132 Note that 1 centipoise (cp) = 0.001 Pa-s (N-s/m²) Table 3.2 Economic flow velocities of Kerosene: 1.5 m/s < Veconomic <3.0 m/s Pr 2.47 3. Kerosene is to be preheated in a double-pipe heat exchanger before being pumped to a distillation facility. The kerosene flow rate is 8000 kg/hr and it is to be heated from 24 to 35 °C. Distilled water is available at 95 °C from the condensed exhaust of a small steam turbine, and its flow rate can be controlled. Select an appropriate double-pipe heat exchanger made of standard copper tubing and complete a thermal analysis of the double- pipe heat exchanger of your chosen by employing the log-mean temperature difference method. Table 3.1 Properties of Kerosene: Im (°C) 30 SG 0.73 Cp (J/kg-K) 2470 (cp) 0.40 k (W/m-K) 0.132 Note that 1 centipoise (cp) = 0.001 Pa-s (N-s/m²) Table 3.2 Economic flow velocities of Kerosene: 1.5 m/s < Veconomic <3.0 m/s Pr 2.47