Step by step solution and answer thank youuu View PoliciesCurrent Attempt in ProgressHot combustion gases, modeled as air behaving as an ideal gas, enter a turbine at 145 lbf/in.?, 2700°R with a mass flow rate of 0.72 Ib/sand exit at 29 Ibf/in.? and 1620°R.If heat transfer from the turbine to its surroundings occurs at a rate of 45.82 Btu/s, determine the power output of the turbine, in hp.W cvhpieTextbook and MediaAttempts: 0 of 4 usedSubmit AnswerSave for Later

The given values are - m =0.72 lb/s =0.326 kg/sT1 = 2700°R = 1500 KT2 = 1620°R = 900 KQ = -45.82…

Answered: Current Attempt in Progress Hot…

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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8Air enters the diffuser of a ramjet engine (schematic shown below) at 6 lbf/in.2, 420°R, with a velocity of 1800 ft/s, and decelerates essentially to zero velocity. After combustion, the gases reach a temperature of 2000°R before being discharged through the nozzle at 6 lbf/in.2 On the basis of an air-standard analysis, determine:(a) the pressure at the diffuser exit, in lbf/in.2(b) the velocity at the nozzle exit, in ft/s.Neglect kinetic energy except at the diffuser inlet and the nozzle exit. Assume combustion occurs at constant pressure and flow through the diffuser and nozzle is isentropic.
15 - A fixed volume insulated tank, initially empty, was connected to a distribution line carrying helium gas at a temperature of 135ºC by means of a valve. The valve is opened first and closed when the pressure is the same as the distribution line pressure. What is the final internal energy of helium in the tank? (Internal energy of the warehouse in the final state = Enthalpy of the distribution line). (Cp=5.1926) will be taken. a) 701.0 kJ/kg B) 597.1 kJ/kg NS) 2014.7 kJ/kg D) 2066.7 kJ/kg TO) 2118.6 kJ/kg
Air flows steadily through an engine at constant temperature, 127 deg C. Assuming that the Kinetic and Potential energies are negligible and if the exit pressure is one-fourth of the initial pressure, in which the initial pressure is 702 kPa, the work per mass is Answer kJ (nearest whole number).
8 A certain SSSF, adiabatic control volume with single inflow and outflow streams has mass-flow-rate, m(dot) = 7.5 kg/sec, and a specific entropy increase from inflow, to outflow, se-si= +1.6 kJ/(K * Kg). Determine dSnet / dt ( in kJ/(degrees Kelvin * sec)), which is the time-rate-of-change, net, of the entropy of the universe (control volume plus surroundings).
20.The following performance of gas turbine engine: compressor inlet temperature, 525°R; compressor isentropic discharge temperature, 673°R; actual compressor discharge temperature, 693°R; turbine inlet temperature, 1505°R; turbine isentropic discharge temperature, 1185°R; and turbine actual discharge temperature, 1218°R. For these conditions calculate the turbine isentropic efficiency.A. 83.24% B. 89.68% C. 87.24% D. 92.68%
Air enters the diffuser of a ramjet engine (schematic shown below) at 6 lbf/in.2, 420°R, with a velocity of 1600 ft/s, and decelerates essentially to zero velocity. After combustion, the gases reach a temperature of 2200°R before being discharged through the nozzle at 6 lbf/in.2 On the basis of an air-standard analysis, determine:(a) the pressure at the diffuser exit, in lbf/in.2(b) the velocity at the nozzle exit, in ft/s.Neglect kinetic energy except at the diffuser inlet and the nozzle exit. Assume combustion occurs at constant pressure and flow through the diffuser and nozzle is isentropic.
Water flows through a horizontal coil heated by steam condenaing on the outside. If the inlet pressure and temperatire are 2 atm and 160°F (state 1) and at the exit 1 atm and 220 °F (state 2), calculate the heat added to the coil per pound mass of water. The entering velocity is 5 ft/s, and the leaving, 500 ft/s. Data: H1=127.9 Btu/lb, H2=1154.4 Btu/lbA. 1031 Btu/lbB. 1042 Btu/lbC. 1048 Btu/lbD. 1052 Btu/lb
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A turbine is driven by a system that enters the turbine at the ff. conditions: 500 kg/h, 44 atm, 450 deg C, 60 m/s linear speed. The steam exits at a point five meters below the inlet stream of the turbine with the following conditions: atmospheric pressure, 360 m/s speed. 70,000 W of shaft work is delivered by the turbine while 104 kilocalories/h heat is lost. Here are the questions to be answered: 1. Why is the value of Wexp 0? (Explain) 2. Given the above values, can you calculate the Wflow? (Yes/No)
Ht.7. An ideal gas , Cp=(5/2)R and Cv=(3/2)R, is changed from (P1=1 bar and V1t= 10m3) to (P2=10bar and V2t=1m3) by the following mechanically reversible processes: a. Isothermal compression
33 - Helium is compressed in a continuous flow compressor. The speed at the compressor outlet is 29 m/s, the cross-sectional area is 0.00123 m² and the specific volume is 0.9267 m³/kg. What is the mass flow rate? a) 0.03221 kg/h B) 0.04479 kg/h NS) 0.04188 kg/h D) 0.03849 kg/h TO) 0.03621 kg/h

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