Consider a cogeneration power plant modified with regeneration. Steam enters the turbine at 8 MPa and 500°C at a rate of 20 kg/s and expands to a pressure of 0.4 MPa. At this pressure, 55% of the steam is extracted from the turbine, and the remainder expands to a pressure of 15 kPa. Part of the extracted steam is used to heat feedwater in an open feedwater heater. The rest of the extracted steam is used for process heating and leaves the process heater as a saturated liquid at 0.4 MPa. It is subsequently mixed with the feedwater leaving the feedwater heater, and the mixture is pumped to the boiler pressure. The steam in the condenser is cooled and condensed by the cooling water from a nearby river, which enters the adiabatic condenser at a rate of 450 kg/s. Determine: 1. The total power output of the turbine 2. The temperature rise of the cooling water from the river in the condenser 3. The mass flow rate of steam through the process heater 4. The rate of heat transfer to the steam in the boiler 6. Turbine Boiler 11 10t Process heater Condenserf 9. P II H fwh H PI 2.

Consider a cogeneration power plant modified with regeneration. Steam enters the turbine at 8 MPa and 500°C at a rate of 20 kg/s and expands to a pressure of 0.4 MPa. At this pressure, 55% of the steam is extracted from the turbine, and the remainder expands to a pressure of 15 kPa. Part of the extracted steam is used to heat feedwater in an open feedwater heater. The rest of the extracted steam is used for process heating and leaves the process heater as a saturated liquid at 0.4 MPa. It is subsequently mixed with the feedwater leaving the feedwater heater, and the mixture is pumped to the boiler pressure. The steam in the condenser is cooled and condensed by the cooling water from a nearby river, which enters the adiabatic condenser at a rate of 450 kg/s. Determine: 1. The total power output of the turbine 2. The temperature rise of the cooling water from the river in the condenser 3. The mass flow rate of steam through the process heater 4. The rate of heat transfer to the steam in the boiler 6. Turbine Boiler 11 10t Process heater Condenserf 9. P II H fwh H PI 2.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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