Figure, shown above, is a schematic drawing or combined cycle formed by a topping gas turbine and art organic Rankine bottoming cycles. Steady-state operating data are labeied on the nguse. Owing to internal irreve rsibilities, the generator eLectricity output is 95% of the input shaft power. Each pump, compressor, and turbine has an isentropic efficiency of 85%. The regenerator which has an efficiency or 80%, preheats air entering the combustor. In the evaporator, which has an effectiveness of 80%, hot exhaust gas from the regenerator vaporizes the bottoming cycle working nuid.. For each of three such working fluids propane, Refffigerant 22, and Refrigerant 134a- specify appropriate ranges for P8, turbine inlet pressure, and T8, turbine inlet temperature; also determine turbine exit pressure P9. For each working fluid., invegtigate the influence on net combinecl-cycle electricity production and on combined-cyde thermal of of varying P8, T8, and compressor pressure ratio. Identin the bottoming working fluid and operating conditions with greatest net combined cycle electricity production, Apply engineering modeling compatible with that used in the textbook for Rankine gdes and air-standard analysis of gas turbines. Determine if the thermal efficiency of the selected cycle call the improved by adding: a reheat process, open/closed feed water heaters and intercoolers.
For the cycle with the highest thermal efficiency, use combustion analysis to determine the mass flow rate of natural gas used to supply the heat input into the cycle.
Considering a cost of $0.08 per kW. h for the Flower plant construction and operatic assuming natural gas is priced at 7 dollars per thousand cubic feet each cubic root of gas has a heating value of 1000 Btu, and the plant operates 7800 h per year, determine whether the operation of your proposed power plant is economically feasible, by comparing the cost of producing electricity with your design with the rate that the local utility company charges per kW.h.
Comment on the impact or your design in a global, economic, environmental, socail context.
Present your analyses, results, and. recommendations in a technical article adhering to ASME standards with at Least three references.