Combined Gas-Vapor Power Cycle: (ANALYSIS) Consider a combined gas-steam power cycle. The topping cycle is a simple Brayton cycle that has a pressure ratio of 8. Air enters the compressor at 20°C at a rate of 40 kg/s and the gas turbine at 950°C. The bottoming cycle is a Reheat Rankine cycle between the pressure limits of 6 Mpa and 12.5 kPa. Steam is heated in a heat exchanger at a rate of 4.8 kg/s by the exhaust gases leaving the gas turbine, and the exhaust gases leave the heat exchanger at 200°C. Steam leaves the high-pressure turbine at 1.0 MPa and is reheated to 400°C in the heat exchanger before it expands in the low-pressure turbine. Assuming 85% isentropic efficiency for all pumps and turbines, determine (a) the moisture content at the exit of the low-pressure turbine, (b) the steam temperature at the inlet of the high-pressure turbine, (c) the net power output and the thermal efficiency of the combined plant

Combined Gas-Vapor Power Cycle: (ANALYSIS) Consider a combined gas-steam power cycle. The topping cycle is a simple Brayton cycle that has a pressure ratio of 8. Air enters the compressor at 20°C at a rate of 40 kg/s and the gas turbine at 950°C. The bottoming cycle is a Reheat Rankine cycle between the pressure limits of 6 Mpa and 12.5 kPa. Steam is heated in a heat exchanger at a rate of 4.8 kg/s by the exhaust gases leaving the gas turbine, and the exhaust gases leave the heat exchanger at 200°C. Steam leaves the high-pressure turbine at 1.0 MPa and is reheated to 400°C in the heat exchanger before it expands in the low-pressure turbine. Assuming 85% isentropic efficiency for all pumps and turbines, determine (a) the moisture content at the exit of the low-pressure turbine, (b) the steam temperature at the inlet of the high-pressure turbine, (c) the net power output and the thermal efficiency of the combined plant

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Concept explainers

Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works on a structure comes under the categories of loading. The external load generates its effects as stress and strain in the structure.

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DIRECTION: Show your complete solutions.
Combined Gas-Vapor Power Cycle: (ANALYSIS)
Consider a combined gas-steam power cycle. The topping cycle is a
simple Brayton cycle that has a pressure ratio of 8. Air enters the
compressor at 20°C at a rate of 40 kg/s and the gas turbine at 950°C.
The bottoming cycle is a Reheat Rankine cycle between the pressure
limits of 6 Mpa and 12.5 kPa. Steam is heated in a heat exchanger at a
rate of 4.8 kg/s by the exhaust gases leaving the gas turbine, and the
exhaust gases leave the heat exchanger at 200°C. Steam leaves the
high-pressure turbine at 1.0 MPa and is reheated to 400°C in the heat
exchanger before it expands in the low-pressure turbine. Assuming
85% isentropic efficiency for all pumps and turbines,
determine
(a) the moisture content at the exit of the low-pressure turbine,
(b) the steam temperature at the inlet of the high-pressure turbine,
(c) the net power output and the thermal efficiency of the combined
plant

Sketch the T-S Diagram.
Compressor
7
Combustion
chamber
Heat
exchanger
Pump
5
Gas
turbine
10
Steam
turbine
Condenser
1

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