- The Feedwater Heater Is Insulated 1 (413.07 KiB) Viewed 53 times
(The Feedwater Heater is INSULATED.)
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answerhappygod
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(The Feedwater Heater is INSULATED.)
(The Feedwater Heater is INSULATED.)
4.109 A feed water heater is used to preheat water before it enters a boiler, as shown schematically in Fig. 4-46. A mass flux of 30 kg/s flows through the system and 7 kg/s is withdrawn from the turbine for the feed water heater. Neglecting losses through the various pipes and components determine (a) the feed water heater outlet tempera- ture, (b) the boiler heat transfer rate, (c) the turbine power output, (d) the total pump power required, (e) the energy rejected by the condenser, (f) the cooling water mass flux, and (g) the thermal efficiency of the cycle. 600 °C Boiler 10 MPa Turbine (B 1.5 MPa Feedwater heater WP₂ 10 MPa Pump 1.5 MPa 1.5 MPa 1 40°C Pump WP2 300 °C 20 kPa 40 °C Condenser x = 0.95 20 kPa AT= 25 °C Cooling water
4.109 A feed water heater is used to preheat water before it enters a boiler, as shown schematically in Fig. 4-46. A mass flux of 30 kg/s flows through the system and 7 kg/s is withdrawn from the turbine for the feed water heater. Neglecting losses through the various pipes and components determine (a) the feed water heater outlet tempera- ture, (b) the boiler heat transfer rate, (c) the turbine power output, (d) the total pump power required, (e) the energy rejected by the condenser, (f) the cooling water mass flux, and (g) the thermal efficiency of the cycle. 600 °C Boiler 10 MPa Turbine (B 1.5 MPa Feedwater heater WP₂ 10 MPa Pump 1.5 MPa 1.5 MPa 1 40°C Pump WP2 300 °C 20 kPa 40 °C Condenser x = 0.95 20 kPa AT= 25 °C Cooling water