Q1) Consider a cogeneration power plant modified with regeneration. Steam enters the turbine at 6 MPa and450 °C at a rate of 60 kg/s and expands to a pressure of 0.4 MPa. At this pressure, 20% of the steam is extractedfrom the turbine, and the remainder expands to a pressure of 10 kPa. Part of the extracted steam is used to heatfeedwater in an open feedwater heater. The rest of the extracted steam is used for process heating and leaves theprocess heater as a saturated liquid at 0.4 MPa. It is subsequently mixed with the feedwater leaving thefeedwater heater, and the mixture is pumped to the boiler pressure. The steam in the condenser is cooled andcondensed by the cooling water from a nearby river, which enters the adiabatic condenser at a rate of 600 kg/s.The enthalpies of all respective points of the system are given below.Turbineh = 191.81hz = 192.20h3 = h4 = h, = 604.66hs = 610.73hg = 3302.9h, = hg = h10 = 2665.6Boiler1110ProcessheaterCondenser| hu = 2128.84PI Hfwh H PIDetermine;(a) The total power output of the turbine(b) The temperature rise of the cooling water from the river in the condenser(c) The mass flow rate of steam through the process heater(d) The rate of heat supply from the process heater(e) The rate of heat transfer to the steam in the boiler

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(a) The total power output of the turbine (b) The temperature rise of the cooling water from the river in the condenser (c) The mass flow rate of steam through the process heater (d) The rate of heat supply from the process heater (e) The rate of heat transfer to the steam in the boiler

(a) The total power output of the turbine (b) The temperature rise of the cooling water from the river in the condenser (c) The mass flow rate of steam through the process heater (d) The rate of heat supply from the process heater (e) The rate of heat transfer to the steam in the boiler

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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