Please help solve and include all calculations/analysis, thank you. A cogeneration plant operates on the cycle shown. For the purpose of this problem, the gas can be considered to be air. compressor isentropic efficiency gas turbine expansion ratio 85% 10:1 gas turbine isentropic efficiency 74% steam turbine isentropic efficiency 82% pump work negligible combustor 2240°F 150 psia gas turbine 2 3 compressor 4 7 100 psia 440°F steam turbine waste 14.7 psia 60°F heat boiler 8 30 psia 6 400°F 100 psia 250°F 5 condenser pump (a) What is the overall efficiency of this cycle? (b) What is the ratio of steam mass flow rate to gas mass flow rate?

Understanding Business
12th Edition
ISBN:9781259929434
Author:William Nickels
Publisher:William Nickels
Chapter1: Taking Risks And Making Profits Within The Dynamic Business Environment
Section: Chapter Questions
Problem 1CE
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Please help solve and include all
calculations/analysis, thank you.
A cogeneration plant operates on the cycle shown. For
the purpose of this problem, the gas can be considered
to be air.
compressor isentropic efficiency
gas turbine expansion ratio
85%
10:1
gas turbine isentropic efficiency
74%
steam turbine isentropic efficiency
82%
pump work
negligible
combustor
2240°F
150 psia
gas turbine
2
3
compressor
4
7
100 psia
440°F
steam
turbine
waste
14.7 psia
60°F
heat
boiler
8 30 psia
6
400°F
100 psia
250°F
5
condenser
pump
(a) What is the overall efficiency of this cycle?
(b) What is the ratio of steam mass flow rate to gas
mass flow rate?
Transcribed Image Text:Please help solve and include all calculations/analysis, thank you. A cogeneration plant operates on the cycle shown. For the purpose of this problem, the gas can be considered to be air. compressor isentropic efficiency gas turbine expansion ratio 85% 10:1 gas turbine isentropic efficiency 74% steam turbine isentropic efficiency 82% pump work negligible combustor 2240°F 150 psia gas turbine 2 3 compressor 4 7 100 psia 440°F steam turbine waste 14.7 psia 60°F heat boiler 8 30 psia 6 400°F 100 psia 250°F 5 condenser pump (a) What is the overall efficiency of this cycle? (b) What is the ratio of steam mass flow rate to gas mass flow rate?
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