FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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A turbojet aircraft moving with a velocity of 790 ft/s at a runway where the pressure& temperature is found to be 14.7psi & 546R. The axial flow compressor provides apressure ratio of 14 to 1. Temperature at the turbine inlet is 2000R. The mass flowrate of airinside the engine is 133 lbm/s. Determine the following:a. T-S diagramb. Pressure & temperature at each statec. Thrust force (lbf)d. Propulsive power developed (BTU/min)e. Propulsive Efficiency
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Steam enters the turbine at the rate of 2.5 kg/s with enthalpy of 3200 kj/kg and exhaust enthalpy of 1100 kj/kg . Steam is extracted from the turbine at the rate of 1 kg/s for heating purposes with enthalpy of 2750 kj/kg. What is the turbine work in KW.
What is different in between Turbines and Compressors.
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- 4. For Francis turbine with the following specifications: Paev= 225 MW, H=250 m, nov= 90 % , If the velocity of water at spiral case entering =24 m/s, and the volumetric efficiency is 0.98, thus the diameter of the spiral case entering is: a. 2.3 m. b. 2.8 m. c. 3.1 m. d. 3.6 m. e. None of them.arrow_forwardKindly fully explain and show how they got Hes Value ,the highlighted value ? See attached questions and memoarrow_forwardAnswer the folloeing problems: A two-stage compressor takes air at 100kpa and 25C with volume flow of 0.123m3/s and discharges to 800kpa. What is the heat rejected(kw) by the intercooler? ANS. 14.82 A two-stage compressor with an ideal intercooler receives 0.5m3/s of Helium at 150kpa and 300K and discharges it at 7500kpa. Find the heat rejected(kw) at the intercooler. ANS. 27.015arrow_forward
- i . A gas well is flowing at a flow rate of 1.2x105scf/d with the surface pressure of 500psi and compressor inlet pressure of 100psi. Calculate the horse power requirement.arrow_forwardProvide the complete solution and diagram. A two stage compressor with an ideal intercooler receives 0.5 kg/s of argon at 120 kPa and 300 K and discharges it at 4500 kPa. Calculate the intercooler pressure in psi. A. 734.85 kPa C. 106.61 psiB. 820.25 psi D. 120.47 psarrow_forward4. For Francis turbine with the following specifications: Pdev= 225 MW, H=250 m , nov= 90 % , If the velocity of water at spiral case entering =24 m/s, and the volumetric efficiency is 0.98, thus the diameter of the spiral case entering is: а. 2.3 m. b. 2.8 m. с. 3.1 m. d. 3.6 m. e. None of them.arrow_forward
- Task 1Derive the non-flow and flow energy equations from first thermodynamic principles. Task 2Apply the steady flow energy equation to nozzle, compressor, turbine, boiler, and mixing chamber.arrow_forwardEnthalpy at the exit of turbine 1 becomes, h2 = 697 + 0.989 × 2065.8h2 = 2740.07 kJkg/ where did you obtain 697? and also 2065.8? it supposed to be hf and hfg but it wasnt found in the steam table givenarrow_forwardA two-stage compressor receives 672 lpm at 140 kPaa and 27 °C and delivers it at690 kPaa. The Compression is polytropic with n = 1.5 and the intercooler is deal. Finda) the power required; b) the intercooler pressure; c) the maximum temperature; d) theheat transferred in the intercooler; and e) the discharge temperature if the compressoris single stage.arrow_forward
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