volume of the cylinder which would be requiredto accommodate the rapidly expanding steam at the lower pressures isnot really justified when considering the small extra amount of workwhich is made available. The extra work is given by the area ABC on theP-V diagram.The cycle with early release is called the modified Rankine cycle.EXAMPLE 89Steam is supplied from a boiler to a steam engine at a pressure of1-1 MN/m2 and at a temperature of 250°C. It is expanded isentropically toa release pressure of 0-28 MN/m2. Its pressure then falls at constant volumeto 35 kN/m2 at which pressure it is exhausted to a condenser. In thendenser the steam is condensed to water with no undercooling and thiswater is then pumped back into the boiler. Determine: 290STEAM PLANT(a) the Rankine efficiency;(b) specific steam consumption in kg/kW h;(c) the Carnot efficiency for the same temperature limits of the cycle.1 MN/m2150-28 MN /m235 kN/m 4

From the steam properties table, write the enthalpy and entropy of the steam at 250oC and 1.1 MN/m2.…

Answered: EXAMPLE 89 Steam is supplied from a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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