4) Hot combustion gases enter the nozzle of a turbojet engine at 350 kPa, 1007 °C and 95 m/s, and they exit at a pressure 100 kPa. Assuming an isentropic efficiency of 95 percent and treating the combustion gases as air determind a- The exit velocity b- The exit temperature

4) Hot combustion gases enter the nozzle of a turbojet engine at 350 kPa, 1007 °C and 95 m/s, and they exit at a pressure 100 kPa. Assuming an isentropic efficiency of 95 percent and treating the combustion gases as air determind a- The exit velocity b- The exit temperature

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

i need the answer quickly
Required information Problem 07.021 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. During the isothermal heat addition process of a Carnot cycle, 700 kJ of heat is added to the working fluid from a source at 400°C. Problem 07.021.c - Total entropy change for the process Determine the total entropy change for the process. The total entropy change for the process is KJ/K.
Show all work neatlyAir flows through an Isentropic Nozzle with an inlet temperature of 660 degrees R, an inlet velocity of 40 Ft/Sec, and an inlet Pressure of 140 PSIA. The Air exits with an exit Pressure of 15 PSIA.Determine the Following: ) Exit Temperature_______________Degrees Rankine ) Exit Velocity___________________Ft / Sec
Q3→ Steam enters a steam turbine at a pressure of 4 MPa and a flow rate of 25 kg / s at 450 ° C. At a pressure of 1 MPa and a temperature of350 ° C, intermediate steam is drawn from the turbine at a flow rate of 5 kg /h. The remainder of the steam leaves the turbine at 10 kPa pressure and 0.90 dryness. 200 kW of heat loss occurs from the turbine to the environment. Ambient temperature is 25 ° C and pressure is 100 КРа. www a) Calculate the exergy (available work potentials) of the state points. b) Find the reversible amount of work and the actual amount of work during this process. c) Calculate the amount of irreversibility (exergy destruction) in this process. d) Calculate the second-law yield for this process.
13. 1.2 kg gas (R = 260 J/kg K, k = 1.395) in a Tank is stirred by a naddle until the pressure is doubled. The change in entropy is, Saved successfully C-0.568 a 0.531 b 0.547 d-0.547
pls answer both questions thankyou
A driver applies the brakes on 1,000 kg automobile to stop from a speed of V = (70 + y/2) km/hr. Find the entropy generation assuming an ambient temperature of Tamb = 20oC: DS = _______ kJ/K (+ 1%) y=95
Problem • Engine I Referring to the schematic energy flow diagram of a typical automobile engine as shown in Figure. (A) What is the heat lost to the cold reservoir? (B) Calculate the entropy changes in the hot reservoir, the cold reservoir, and the engine, respectively. (C) What is the thermal efficiency of the engine? (D) Compute the Reversible (Carnot) efficiency and the Second-Law Efficiency Hot reservoir 460K (187C) Heat 1200 J Useful work 320I Engine system Cold reservoir 325K (52°C)
How to Calculate the thermal efficiency of 400 MWth PBMR.PBMR, Helium using Brayton Cycle
! Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Five kilograms of air at 427°C and 600 kPa are contained in a piston-cylinder device. The air expands adiabatically until the pressure is 100 kPa and produces 450 kJ of work output. Assume air has constant specific heats evaluated at 300 K. Determine the entropy change of the air in kJ/kg-K. Use the table containing the ideal gas specific heats of various common gases. (You must provide an answer before moving on to the next part.) The entropy change of the air is kJ/kg-K.
There are compressed 11.33 m³/min of ideal gas (R=287.08 J/kg K, k=1.4) from 103.42 kPaa, 26.7 °C to 827.36 kPaạ. All clearances are 8%. a. Determine the isentropic power for single stage compression ANSWER b. Determine the piston displacement required for single stage compression ANSWER c. Using the same data: find the minimum ideal work for two stage compression when the intercooler cools the air to the initial temperature ANSWER d. How much heat is exchange in the intercooler? ANSWER
Steam enters an adiabatic turbine at a given 9,200 kpa and the temperature is 475 degree celsius with a mass flow rate of 87 kg/s. The surrounding temperature is 300 kelvin. The effeiciency of the turbin is also said to be 0.75. With this given data, what would be the entropy generation rate, value of ideal work, and value of the lost work? note: steam is superheated.