Question on D-FAlso why not assume that P1=P4? 1. A combined cycle power plant has the operating points shown in the figure below. Airenters the compressor of the gas cycle at 14.7 psi (atmospheric pressure) and 60ʻF with avolumetric flow rate of 40,000 ft/min. The compressor operates with a pressure ratio of 11and an isentropic efficiency of 87%. The air enters the turbine at state 3 at 2140°F, and theturbine operates with an isentropic efficiency of 90%. The air exiting the turbine passesthrough the interconnecting heat exchanger is exhausted to the atmosphere at 400*F.CombustorCias turbineCompressorTurhinegasAir inletExhaustHeat-recoverysteam generatorTurhineVaporсуcle11PutmpCondenser10CoolingwaterWater enters the turbine of the vapor cycle at 1000 psi and 900°F. The turbine operateswith an efficiency of 90%. The water exiting the turbine is condensed to a saturated liquid state at a pressure of 1 psi before entering the pump. The pump operates with an efficiencyof 72%. Using a cold air standard analysis with k = 1.4 for the gas cycle, determine:a. The mass flow rate of air, in Ibm/h,b. The mass flow rate of water, in Ibm/h,c. The mass flow rate of cooling water passing through the condenser, in Ibm/h, if it issupplied from the cooling tower at 55*F and returns at 80*F,d. The rate at which energy must be added to the system by heat transfer, in Btu/h,e. The net power output of the system, in Btu/h, andf. The thermal efficiency of the cycle.

Answered: Image /qna-images/answer/92f51e97-0cd4-4e5e-9d20-250ff9903145.jpg

A combined cycle power plant has the operating points shown in the figure below. Air enters the compressor of the gas cycle at 14.7 psi (atmospheric pressure) and 60*F with a volumetric flow rate of 40,000 ft/min. The compressor operates with a pressure ratio of 11 and an isentropic efficiency of 87%. The air enters the turbine at state 3 at 2140*F, and the turbine operates with an isentropic efficiency of 90%. The air exiting the turbine passes through the interconnecting heat exchanger is exhausted to the atmosphere at 400*F. Combustor Cias turbine Compressor Turbino Air inlet Exhaust Heat-recovery steam generator Turbine Vapor cycle Putup Соndenser 10 Cooling water Water enters the turbine of the vapor cycle at 1000 psi and 900*F. The turbine operates with an efficiency of 90%. The water exiting the turbine is condensed to a saturated liquid

A combined cycle power plant has the operating points shown in the figure below. Air enters the compressor of the gas cycle at 14.7 psi (atmospheric pressure) and 60F with a volumetric flow rate of 40,000 ft/min. The compressor operates with a pressure ratio of 11 and an isentropic efficiency of 87%. The air enters the turbine at state 3 at 2140F, and the turbine operates with an isentropic efficiency of 90%. The air exiting the turbine passes through the interconnecting heat exchanger is exhausted to the atmosphere at 400F. Combustor Cias turbine Compressor Turbino Air inlet Exhaust Heat-recovery steam generator Turbine Vapor cycle Putup Соndenser 10 Cooling water Water enters the turbine of the vapor cycle at 1000 psi and 900F. The turbine operates with an efficiency of 90%. The water exiting the turbine is condensed to a saturated liquid

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

See similar textbooks

Similar questions

For the NH3/H2O cycle the following relationship give the solution flow rate per unit refrigeration rate: WFS_A * X - WFS_G(X-1) = 1 where WFS_A = mass fraction of NH3 in solution form the absorber WFS_G = mass fraction of NH3 in solution from the generator X-1 =mass of solution from the generator per unit mass of refrigerant flow For large systems, a reasonable pressure drop between the evaporator and absorber is 1.5 psi Consider a large NH3/H2O plant operating per the schematic below: Known/given: i. Refrigeration load = 500 tons ii. Evaporator temperature (state point 10) = 41.1 F iii. Evaporator pressure (state point 10) = 75 psia iv. Absorber pressure (state point 11) = 73.5 psia (per rule of thumb above regarding pressure drop between the evaporator and absorber) v. Strong aqua solution temperature (state point 3) = 105 F vi. Condenser temperature (state point 8) = 100 F vii. Condenser and tower pressure (state point 7) = 211.9 psia viii. Concentration split, WFS_G - WFS_A =6%…
Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 314 K, with a volumetric flow rate of 5 m3/s. The compressor pressure ratio is 9:1. 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.
Air enters the compressor of an ideal air-standard Brayton cycle at 80 kPa, 299 K, with a volumetric flow rate of 6.1 m3/s. The compressor pressure ratio is 7. The turbine inlet temperature is 1886 K. Adopting the cold air-standard assumption, calculate: the mass flow rate of air to 3 d.p. in SI unit and privide unit symbol. Take the gas constant as 289 J/kg.K
OTTO CYCLE At the start of an air-standard Otto cycle's compression process, P1 = 1 bar, T1 = 300 K, V1 = 380cm3. The maximum temperature in the cycle is 2400 K and the compression ratio is 9. Determine the: (d) the mean effective pressure, in bar. Show complete solution.
Air enters the compressor of an ideal air-standard Brayton cycle at 118 kPa, 329 K, with a volumetric flow rate of 1613 m3/s. The compressor pressure ratio is 10. The turbine inlet temperature is 1613 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 thermal efficiency of the plant to one decimal place and include the correct unit (percentage). Use cold air standard assumption
Subject: thermodynamics In a gas turbine generating set, two stages of compression are used with an intercooler between stages. The HP turbine drives the HP compressor, and the LP turbine drives the LP compressor and the generator. The exhaust from the LP turbine passes through a heat exchanger which transfers heat to the air leaving the HP compressor. There is a reheat combustion chamber between turbine stages which raises the gas temperature to 600 ?C, which is also the gas temperature at entry to the HP turbine. The overall pressure ratio is 10/1, each compressor having the same pressure ratio, and the air temperature at entry to the unit is 20 ?C. The heat exchanger thermal ratio may be taken as 0.7, and intercooling is complete between compressor stages. Assume isentropic efficiencies of 0.8 for both compressor stages, and 0.85 for both turbine stages, and that 2% of the work of each turbine is used in overcoming friction. Neglecting all losses in pressure, and assuming that…
Air enters the compressor of an ideal air-standard Brayton cycle at 119 kPa, 328 K, with a volumetric flow rate of 1358 m3/s. The compressor pressure ratio is 8. The turbine inlet temperature is 1358 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 work ratio of the plant to one decimal place and include the correct unit (percentage). Us cold air standard assumption.
Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 285 K, with a volumetric flow rate of 5 m3/s. The compressor pressure ratio is 11:1. The turbine inlet temperature is 1400 K. Take Specific heat at constant pressure and constant volume for air as 1.001 kJ/kg K and 0.710 kJ/kg K respectively. Calculate the turbine exit absolute temperature to one decimal place and place the correct unit.
Given a Brayton cycle, with a pressure ratio equivalent to 12, as shown in the figure, determine its thermal efficiency, in %. Use Standard Cold Air Assumption Method (constant specific heats at room temperature, 25ºC).
Rannkin cycle 1_The value of enthalpy at point 1 is ( h1 =?) 2_ value of enthalpy at point 2 is ( h2 =?) 3_ value of enthalpy at point 3 is ( h3 =?) 4_value of enthalpy at point 4 is ( h4 =? 5_ value of steam mass flow rate in kg/s is 6_rate of heat supplied7_ power developed by Turbine (WT) in kW is : 8_ Thermal efficiency of Rankine cycle is:
P23. Steam enters an insulated nozzle with negligible velocity, 200 psi and 500°F. Steam exits at 100 psi and 400°F.For steady-state operation and neglecting potential energy effects, determine the velocity of the steamleaving the nozzle in ft/s.
In an air standard brayton cycle, air enters the compressor at 27 degree C and 100 kPa. The pressure ratio is 10, and the maximum allowable temperature is 1350 K. the compressor and turbine efficiencies are 85%, and pressure drops 27 kPa between the compressor discharge and turbine inlet. Determine the pressure and temperature at each state in the cycle, the compressor and turbine work, and the cycle thermal efficiency. Please show the PV and TS diagram. Please show complete formulas and solutions.