FUNDAMENTALS OF THERMODYNAMICS
10th Edition
ISBN: 9781119634928
Author: Borgnakke
Publisher: WILEY
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3kg of Co2 expanded in a stationary piston cylinder through a polytropic process from 30 degree Celsius and 250 kpa to 100kPa pressure. If the polytropic exponent, n = 1.45, find the total work, total heat transferred, total kinetic energy change and internal energy change
200Kg/min superheated steam at 40 bar and 350C enters a turbine through a 7.5cm ID pipe. It exits at 5bar as saturated steam through a 5cm ID pipe neglect the change in potential energy of the system.
What is the temperature of the outlet saturated system?
How much energy is transferred to or from the turbine?
A compressor compresses the gas in a cylinder at a pressure of 2
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Find the work done of the compressor (a)
and Find the
sensible heat (b).
removed to reduce the temperature of 5 kg
of water from 20°C to 5°C, Specific heat capacity is 4.187 kJ/kg K.
on
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- The initial state (state 1 ) of a system containing 1.0 kg of water is 110 Co and 0.4 m3 volume . The water is now heated to state 2 through the path shown at which the final pressure is 500 kpa and temperature of 200 Co. Find the work and heat transfer in this processarrow_forwardPls solve accarrow_forwardA fluid is heated reversibly at a constant pressure of 1.05 bar until it has a specific volume of 0.1 m'/kg. It is then compressed reversibly according to a law pu = constant to a pressure of 4.2 bar, then allowed to expand reversibly according to a law pel.- constant, and is finally heated at constant volume back to the initial conditions. The work done in the constant pressure process is -515 N m, and the mass of fluid present is 0.2 kg. Calculate the net work of the cycle and sketch the cycle on a p-v diagram.arrow_forward
- .arrow_forward1.4 1kg of a fluid expands reversibly according to a lincar law from 4.2 bar to 14 bar; the initial and final volumes are 0.004 m' and 002 m. The fluid is then cooled reversibly at constant pressure, and finally compressed reversibly according to a law pe= constant back to the initial conditions of 4.2 bar and 004 m. Calculate the work done in cach process and the net work of the cycle. Sketch the cycle on a p- diagram. (-4480 N m: +1120N m, + 1845 N m, -15IS N m)arrow_forward1.2 I kg of a fluid is compressed reversibly according to a law pu = 0.25, where p is in bar and r is in m'/kg. The final volume is į of the initial volume. Calculate the work done on the fluid and sketch the process on a p-r diagram.arrow_forward
- Hi, I need help with this problem. Please provide a readable solution for it. Thanks a lot.arrow_forwardHi, pls help me solve this problem. Thank you so much.arrow_forwardQ4) A) What is the difference between R and Ru and how these two are related. B) What is the difference between the first and second law? Explain. Q5: A quantity of air occupies a volume of 30 L at a temnperature of 38°C and a pressure of raised isentropically until the volume becomes 6 L. . The temperature of the air 2KN/m 104Find the final temperature, the external work, change in internalarrow_forward
- 4.7 The refrigerant R-22 is contained in a piston/cylinder as shown in Fig. P4.7, where the volume is 11 L when the piston hits the stops. The initial state is -30°C, 150 kPa with a volume of 10 L. This system is brought indoors and warms up to 15°C. a. Is the piston at the stops in the final state? b. Find the work done by the R-22 during this process.arrow_forwardAir flows steadily through an engine at a constant temperature, 400K. Find the work per kilogram if the exit pressure is one-third the inlet pressure and the inlet pressure is 207 kPa. Assume that the kinetic and potential energy variation is negligible.arrow_forwardAir as ideal gas in the closed system, find the change of entropy from the initial to the final state, in Btu/lb oR ( degree R ). T1 = 360 oF (degree F), P1 = 14.7 psia T2 = 540 oF (degree F), P2 = 58.8 psiaarrow_forward
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