Methane gas (CH4) enters the combustion chamber of a gas turbine at 77°F, 40 lbﬁ/in² and a molar flow rate of 1.7 lbmol/h and burnscompletely with air entering at 300°F, 40 lb/in². The combustion products leave the combustion chamber at T3 = 1380°F, 40 lbf/in².The gas turbine operates adiabatically at steady state and air can be modeled as 21% O2 and 79% N₂ on a molar basis.Step 1CH4 at 77°F,40 lbf/in²n = 1.7 1bmolhX Your answer is incorrect.n =AirP2 = 40 lbf/in²T₂ = 300°F90.49Determine the percent of theoretical air required.1%23P3=40 lbf/in?T3

Answered: Image /qna-images/answer/d9c33782-392b-4370-8db8-0cedc4bbd3b3.jpg

Methane gas (CH4) enters the combustion chamber of a gas turbine at 77°F, 40 lb/in² and a molar flow rate of 1.7 lbmol/h and burns completely with air entering at 300°F, 40 lb/in². The combustion products leave the combustion chamber at T3 = 1380°F, 40 lb/in². The gas turbine operates adiabatically at steady state and air can be modeled as 21% O₂ and 79% N₂ on a molar basis. Step 1 CH4 at 77°F, 40 lbf/in² n₂ = 1.71bmolh * Your answer is incorrect. n = Air P2 = 40 lbf/in² T₂ = 300°F Determine the percent of theoretical air required. i 90.49 % P3=40 lbf/in? T3

Methane gas (CH4) enters the combustion chamber of a gas turbine at 77°F, 40 lb/in² and a molar flow rate of 1.7 lbmol/h and burns completely with air entering at 300°F, 40 lb/in². The combustion products leave the combustion chamber at T3 = 1380°F, 40 lb/in². The gas turbine operates adiabatically at steady state and air can be modeled as 21% O₂ and 79% N₂ on a molar basis. Step 1 CH4 at 77°F, 40 lbf/in² n₂ = 1.71bmolh * Your answer is incorrect. n = Air P2 = 40 lbf/in² T₂ = 300°F Determine the percent of theoretical air required. i 90.49 % P3=40 lbf/in? T3

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

Steam enters the turbine of a vapor power plant at 600 lbf/in.², 1000°F and exits as a two-phase liquid-vapor mixture at 90°F. Condensate exits the condenser at 85°F and is pumped to 600 lbf/in.² The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW. Determine: (a) the percent steam quality at the turbine exit. (b) the percent thermal efficiency. (c) the steam mass flow rate, in lb/h. Part A * Your answer is incorrect. Determine the percent steam quality at the turbine exit. x₂ = i 78.67 %
Q1. Propane (C3H8) gas enters a steady-flow adiabatic combustion chamber at 25°℃ and 1 atm. It is burned with 300 percent excess air that also enters at 25°C and 1 atm. Assuming complete combustion, determine (a) the temperature of the products, (b) the entropy generation, and (c) the reversible work and exergy destruction. Assume that To = 298 K and the products leave the combustion chamber at 1 atm pressure.
Steam enters the turbine of a vapor power plant at 600 lbf/in.2, 1000°F and exits as a two-phase liquid-vapor mixture at 100°F. Condensate exits the condenser at 95°F and is pumped to 600 lbf/in.2 The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW. Determine: (a) the percent steam quality at the turbine exit. (b) the percent thermal efficiency. (c) the steam mass flow rate, in lb/h.
Steam enters the turbine of a vapor power plant at 600 lbf/in.², 1000°F and exits as a two-phase liquid-vapor mixture at 90°F. Condensate exits the condenser at 85°F and is pumped to 600 lbf/in.² The turbine and pump isentropic efficiencies are 90 and 80%, respectively. The net power developed is 1 MW. Determine: (a) the percent steam quality at the turbine exit. (b) the percent thermal efficiency. (c) the steam mass flow rate, in lb/h.
The moist air at 30 C° and 50 % RH enters steady state dehumidifier at the rate of 280 m³/min. The air passes over a cooling coil and water vapour condenses. The saturated moist air exists at 10 C°. The condensate also leaves the dehumidifier at 10 C°. The pressure is atmospheric. Determine 1- The mass flow rate of dry air. 2- The rate at which water is condensed. 3- The required refrigerating capacity in ton of refrigeration.
If one mole of air/fuel mixture (rigid diatomic gas) is initially at 20◦C, is compressed and expanded 7-fold as part of the Otto cycle, and 4 kJ of heat is generated by burning the air/fuel mixture, calculate: (i) the temperature after each stage of the Otto cycle; (ii) the heat absorbed/expelled during each stage of the cycle; and (iii) the efficiency of the Otto cycle.
Determine the air fuel ratio on both a molar and mass basis for the complete combustion of Octane (C8H18) with: (a) the theoretical amount of air. ( b) 50% excess air.
Butane (C4H10) is completely combusted with air. All of the questions on this page refer to this process. Air contains 21% oxygen (O2) and 79% nitrogen (N2) on a molar basis. Element Symbol Molar Mass (kg/kmole) Hydrogen Carbon H. 12 14 Nitrogen Охудen 16 AF = mair %3D mfuel % Excess Air = % of Theoretical (Stochiometric) Air - 100 % 2 )| How many kmoles of air (per kmole butane) would be needed for complete combustion at 200 % excess air?
An industrial process discharges 75.3 kg/s of gaseous combustion products at 204°C, 100 kPa (properties at state 1). As shown in the figure, a proposed system for utilizing the combustion products combines a heat-recovery steam generator with a well-insulated turbine. At steady state, combustion products exit the steam generator at 130°C, 100 kPa, and a separate stream of water enters at 350 kPa, 46°C with a mass flow rate of 150 kg/min. At the exit of the turbine, the pressure is 7.5 kPa and the quality is 88%. Heat is lost from the steam generator at a rate of 93600 kJ/h. The changes in kinetic and potential energies of the flowing streams can be ignored as can the pressure drop for the water flowing through the steam generator. The combustion products can be modeled as air acting as an ideal gas with constant specific heats of Cv= 0.718 kJ/kg-K and Cp=1.005 kJ/kg-K. Use Rair = 0.287 kJ/kg-K. Also, for the compressed liquid, assume the substance is a saturated liquid at the given…
Ethane, C2H6, burns to completion with 21% excess air. Determine (a) the chemical reaction describing the process, (b) the mass based air-fuel ratio, (c) the molar air- fuel ratio, and (d) equivalence ratio of the process.
Draw a schematic diagram of each problem with labels of states of a substance; Assign STATE 1 at the inlet of a high-pressure turbine. The states must be arranged in a chronological order; Plot each cycle in a t-s diagram with thestates consistent to the states assignment in the schematic diagram; Water is the working fluid in a cogeneration cycle that generates electricity and provides heat for campus buildings. Steam at 4 MPa, 400 0C, enters a two-stage turbine with a mass flow rate of 0.80 kg/s, from which a of 0.15kg/s is extracted between the two stages at 0.20MPa to provide for building heating, and the remainder expands through the second stage to the condenser pressure of 0.01 MPa. Condensate returns from the campus buildings and passes through a trap into the condenser, where it is reunited with the main feedwater flow. Saturated liquid leaves the condenser at 0.01MPa. Both turbine and pump have 90% efficiency. Determine, in kW, the ff: (b) rate of heat transfer for building…