Answered: Below is a schematic diagram of a…

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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Below is a schematic diagram of a simple steam power plant. Steam is heated inside an isobaric boiler and enters the turbine at 1 MPa and 300⁰C. It exits the turbine at 500 kPa, saturated vapor. The steam is then cooled down to saturated liquid at 500 kPa by cooling water flowing in at 35 ⁰C and out at 85 ⁰C of the condenser. The needed power of the pump is 11.071 MW. The steam is pumped into a throttling device back to the boiler. The mass flow rate of steam circulating the condenser is 100 kg/s. Determine the following:

a. Turbine work in MW

b. Heat rejected from the condenser in MW

c. Mass flow rate of cooling water in kg/s

d. Inlet boiler temperature in ⁰C

e. Heat added in the boiler in MW

Qboiler
Isobaric Boiler
P1= 1MPA
T1= 300°C
Wpump=11.071 MW
Wturbine
Condenser
P2= 500 kPa
P2= 500 kPa
Saturated
Saturated
Liquid
Vapor
T2,cw = 85°C
T1,cw = 35°C
Qcondenser
m2 =100 kg/s
Turbine
EPump

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