Consider a regenerative gas turbine power plant with two stages of compression and two stages of expansion.The compressor pressure ratio of the compressor is 3. Air enters each stage of compressor at 290 K and eachstage of turbine at 1400 K. The regenerator has an effectiveness of 100%. Determine(a) The enthalpy at stage#2 in KJ/kg⭑(b) The enthalpy at stage#6 in KJ/kg*(c) The enthalpy at stage#9 in KJ/kg(d) The enthalpy at stage#10 in KJ/kg(e)The mass flow rate of air needed to develop a net power output of 50 MW**For all final answers please enter the integer part only, (ie 1234) and do not include the decimal partand the decimal pointNo rounding in your calculation.Compressorstage 1RegeneratorwwwHXww9CombustorReheatIntercoolerwwCompressorstage 2Turbine 1combustorTurbine 2

Answered: Image /qna-images/answer/271ae3d4-d3a1-4d74-b9f2-1c7b5ae66713.jpg

Answered: Consider a regenerative gas turbine…

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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Air at a 800 kPa and 1300 K enters a turbine which has an isentropic efficiency of 90% with a mass ﬂow rate 6 kg/s. The outlet pressure is 100 kPa and assume that speciﬁc heats vary with temperature. 1. What is the outlet temperature in K? Report your answer to one decimal place using rounding. 2. (image)
Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 283 K, with a volumetric flow rate of 5 m3/s. The compressor pressure ratio is 8:1. The turbine inlet temperature is 1400 K. Take Specific heat at constant pressure and constant volume for air as 1.006 kJ/kg K and 0.717 kJ/kg K respectively. Calculate the compressor exit absolute temperature to one decimal place and place the correct unit. Use the cold air-standard assumption.
Please match the formulate (energy and/or mass balance) to the corresponding steady flow devices: A not well insulated nozzles by neglecting the potential energy change. An adiabatic turbine by neglecting the kinetic and potential energy change. A not well insulated compressor by neglecting the kinetic and potential energy change. An adiabatic mixing chamber with two inlets and one exit by neglecting the kinetic and potential energy change. An adiabatic throttling valve by neglecting the kinetic and potential energy change. A. B. C. D. E.
4. A two-stage air compressor with an intercooler takes in air at 14.6 psia at 62 degree F anddelivers it at 502 psia. The temperature of the air leaving the intercooler is 62 degree F.Calculate the work required per pound of air delivered if compression isisentropic, ft-lbf/lbA. (-)108,072 ft-lbf/lb C. (-)168,072 ft-lbf/lbB. (-)118,072 ft-lbf/lb D. (-)128,072 ft-lbf/lb
Air enters the compressor of an ideal air-standard Brayton cycle at P1-98 kPa and T1-320 K, with a volumetric flow rate of 15 m3/s. The compressor pressure ratio is 8. The turbine inlet temperature is 1480 K. Determine: P2 Pi 8 2 Compressor P₁=98 kPa T₁=320 K Heat exchanger Heat exchanger Cour T3 = 1480 K Turbine a. The mass flow rate b. The backwards ratio c. The rate of Heat addition to the system d. Thermal efficiency cycle T T3=1480 K P= 784 kPa P=98 kPa T₁= 320 K S
Hydrogen enters turbine of an ericsson cycle at 1500 K and 900 kPa, with a mass flow rate of 1 kg/s. the temperature and pressurs at the inlet to the compressor are 320K and 1500 kPa, respectively. Determine the following: (a) efficiency, (b) Wnet per mass of air. Show the PV and TS diagram. Please show the formulas and solutions
Helium enters an isentropic compressor at a rate of 0.25 kg/s with a pressure of 200 kPa, a temperature of 300 K and a velocity of 10 m/s. The gas is then compressed to 650 kPa. If the power input into the compressor is 2 MW, determine the Helium exit temperature and velocity. (Assume: a. Ideal gas behavior, b. Steady-flow in the pipe, c. Constant sp. heat)
4. A single-stage cylinder air compressor is rated at 6.5 cubic meter per minute of air .Suction conditions are 1 atm and 27 deg C and discharge pressure of 1034 KPa. The compression process follows PV1.35 = C. What is the engine Kw power needed to drive the unit if the combined engine-compressor efficiency is 84%?
In an air-standard Brayton cycle the air enters the compressor at 0.1 MPa and 15°C. The pressure leaving the compressor is 1.0 MPa, and the maximum temperature in the cycle is 1100°C. Determine the pressure and temperature at each point in the cycle and the compressor work, turbine work, and cycle efficiency. For each of the control volumes analyzed, the model is ideal gas with constant specific heat, at 300 K, and each process is steady state with no kinetic or potential energy changes
8.7 Diffuser A jet flies at an altitude of 10 km, where the pressure is 0.32 bar, and the temperature is-44°C. The jet flies with a velocity of 880 km/h, and its diffuser has an inlet cross section of 1.5 m². Assume negligible diffuser exit velocity, adiabatic reversible flow, and consider air as ideal gas with constant specific R. Determine the mass flow into the engine, and the pressure increase heats, R = 0.287 = :, Cp R. across the diffuser. kJ kgk
A four-stage compressor works between limits of 1 bar and 120 bar. The indexof compression in each stage is 1.25, the temperature at the start ofcompression in each stage is 30 ˚C, and the intermediate pressure areselected such that work is divided equally among the stages. If the clearanceis negligible: Calculate: 1. the volume of free air delivered per kilowatt-hour at 1.013 bar and 20 ˚C2. isothermal work input 3. isothermal efficiency.
Answer 1.8 and 1.9

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