Steam is supplied to a two-stage turbine at 48 bar and 400 °C. It expands in the first turbine until it is just dry saturated, then it is re-heated to 400 °C and expanded through the second-stage turbine. The condenser pressure is 0.04 bar. High-P turbine Low-P turbine Reheater O Boiler -o P = P3 = Pecheat Condenser find thespecific heat inputof the systemin kJ/kg to 2.d.p. ?

Steam is supplied to a two-stage turbine at 48 bar and 400 °C. It expands in the first turbine until it is just dry saturated, then it is re-heated to 400 °C and expanded through the second-stage turbine. The condenser pressure is 0.04 bar. High-P turbine Low-P turbine Reheater O Boiler -o P = P3 = Pecheat Condenser find thespecific heat inputof the systemin kJ/kg to 2.d.p. ?

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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Condenser pressure is 1200 kPa, Intermediate pressure 500 kPa and evaporator pressure 200 kPa, T7 = 40 Celsius degree, system cooling load QL = 25kW, compressor isentropic efficiency 0.8. Condenser outlet is saturated liquid, evaporator outlet is saturated steam. Draw the T-s diagram, please.
Please proceed within an hour, including a diagram.
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In a Refrigerant 11 system ,one evaporator is to provide 210 kw of refrigerant at 0 0C and another evaporator is to provide 224 kw at -200C . The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 400C . Given that, h2=389kJ/kg, h4=416kJ/kg Compute the following: a.) mass flow rate at low stage compressor (m1)ANSWER: 1.25377 kg/s b.) mass flow rate at high stage compressor (m3)ANSWER: 2.90255 kg/s c.) low stage compressor workANSWER: 12.96406 kw d.) high stage compressor workANSWER: 78.68819 kw e.) total compressor workANSWER: 91.65226 kw f.) COPANSWER: 4.73528 g.) heat rejected in the condenserANSWER: 525.65226 kw
Thank you
Draw the T-S diagramNotes: Assume the steam is reheated to the inlet temperature of the high-pressure turbine. The moisture content of the steam at the exit of the low-pressure turbine is not to exceed 9.5%
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