FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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1 kg of steam expands isentropically from 2.5 MPa & 300 Degrees Celsius to .95 MPa. Find the final quality and Wn, Ws.
2) Water vapor enters a continuous flow adiabatic turbine at 15 MPa pressure, 500 °C temperature and 90 m/s velocity, and exits at 20 kPa pressure, 92% dryness and 80 m/s speed. Since the mass flow rate of the steam is 43.2 tons/h,
a) The power produced in the turbine (in MW, HP, ton.km/h),
b) Find the turbine inlet and outlet cross-sectional areas (in m2, cm2).
Find the quanity of heat required to produce 79% dry steam at 8000 kpa from feedwater at 50 degrees celcius ?.
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- If 6 liters of air at a pressure of 100 kPaa and 25 0 C are compressed reversiblyaccording to PV 2 = C, until the volume becomes 2 liters. Please answer the following a. The thermodynamic process the problem representsb. the pressure, temperature, and volume after the processc. change in internal energy, change in enthalpy and change in entropyd. work nonflow and heat transferredarrow_forwardI need a copyable tyepd answer which I can copy itarrow_forward6. Five pounds of a certain ideal gas with K 1.30 and R= 35 is compressed in %3D polytropic process in a closed system from 15 psia, 80 F to 60psia, 315 F. Compute the polytropic index n, the work nonflow and the heat interactions with the surroundingsarrow_forward
- 1. Find enthalpy if 5kg of certain gas go through a reversible non flow that has constant pressure process from initial volume 2.129m³and pressure of 700 kPa to a state where T2 550°C. A certain gas has R= 350J/kg-K and Cv = 0.94 kJ/kg-K a. 731.9675kJ b. 813.8610kJ c. 878.3610kJ d. 891.2610kJarrow_forwardone kg of steam expands isentropically from 2.5mpa and 300 degrees to 0.95mpa.find the final quality and Wn and Wsarrow_forwardDuring an isentropic process of 3 lb/sec of air, the temperature increases from 50 deg F to 290 deg F. Find the work for a nonflow process.arrow_forward
- Q9: Steam at 110 bar has a specific volume of 0.0196 m3/kg, find the temperature, the enthalpy and the internal energy.arrow_forwardQuestion attachedarrow_forwardI have been working on this problem for a while but I need to figure out how to get the specific enthalpy when the refridgerant exits the system to find the mass flow rate of when the refridgerant exits the system but I don't know how to do thisarrow_forward
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