AA moodle.ku.edu.kw Temperature losses pecific heat at constant temperature Heat transfer coefficient in the brine heater Heat transfer coefficient in the heat recovery section Heat transfer coefficient in the heat rejection section 0.7 °C 4.2 kJ/kg K 3.4 2.7 2.4 kW/m2 K kW/m2 K kW/m2 + RA ? L AA moodle.ku.edu.kw SF brine circulation system operates at the following conditions Distillate flow rate 200 kg/s Brine blow down salinity 75000 Ppm Feed salinity 35000 ppm °C Intake seawater temperature °C Temperature of brine recycle entering the brine heater 28 90 + RA ? L < AA apor density in last stage Steam latent heat Area of brine heater moodle.ku.edu.kw 0.045 kg/m³ Extra Find: a) SA for additional practice. b) Vapor velocity of demister in last stage 2202 KJ/kg s 1150 m3 + RA ? L < = AA moodle.ku.edu.kw leat transfer coefficient in the heat jection section Number of flashing stages Number of flashing stages in the heat rejection section Brine loading Vapor velocity in last stage 2.4 25 3 300 4 kW/m2 K kg/(m s) m/s + RA ? L < = AA moodle.ku.edu.kw Brine Blow Down temperature = Tbn = Top Brine temperature = Tbo = °C °C + RA ? L <

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AA moodle.ku.edu.kw Temperature losses pecific heat at constant temperature Heat transfer coefficient in the brine heater Heat transfer coefficient in the heat recovery section Heat transfer coefficient in the heat rejection section 0.7 °C 4.2 kJ/kg K 3.4 2.7 2.4 kW/m2 K kW/m2 K kW/m2 + RA ? L AA moodle.ku.edu.kw SF b