Steam enters a turbine with a pressure of 80 bar, a temperature of 480°C, and a velocity of 145 m/s. Saturated vapor at 120°C exits with a velocity of 87 m/s. At steady state, the turbine develops work equal to 610 kJ per kg of steam flowing through the turbine. Heat transfer between the turbine and its surroundings occurs at an average outer surface temperature of 350 K. Determine the rate at which entropy is produced within the turbine per kg of steam flowing, in kJ/kg K. Neglect the change in potential energy between inlet and exit.

Q: SANAE IV, a research station of The South African National Antarctic Programme (SANAP), is located…

A: Entropy is the measure of disorderness of any system. If the heat flow occurs through any system,…

Q: Air at T₁ = 20°C and P₁ = 100 kPa enters a compressor with a mass flow rate of m= 0.025 kg/s through…

A:

Q: A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kg k…

A:

Q: 1.62 kJ/kg⋅K. The initial pressure is 553.3 kPa. Determine the work steady flow of the process in hp…

A:

Q: SANAE IV, a research station of The South African National Antarctic Programme (SANAP), is located…

A: Entropy is the measure of disorderness of any system. If heat flow occurs through any system, then…

Q: - Exercise D02: A cylinder-piston arrangement contains m = 1 kg of water, initially in the saturated…

A:

Q: Draw the Pressure-Volume Diagram and Temperature-Entropy (T-S) Diagram when a carnot engine operates…

A:

Q: 1 kg of water, T1 = 300 ° C, P1 = 200 kPa in a piston-cylinder assembly passes a process to its…

A:

Q: 3. Consider that 1 kg of air has a decrease of internal energy of 21.7 kJ while its temperature is…

A:

Q: Dry saturated steam at p1 = 3.5 MPa is contained in a cylinder-piston arrangement. It is brought…

A:

Q: During a reversible process, 2.51 kg/s of gas rejects 323.4 kJ/s of heat isothermally at 24.2°C For…

A:

Q: 1. 1 kg of propane contained within a piston-cylinder assembly undergoes a process from an initial…

A:

Q: Steam enters an adiabatic nozzle at 440°C and 3 MPa with a velocity of 10 m/s, and exits with a…

A: Here, T1 = 440 °CP1 = 3 MPaV1 = 10 m/sP2 = 0.3 MPaV2 = 305 m/s

Q: Air at Ti = 20°C and P₁ = 100 kPa enters a compressor with a mass flow rate of m= 0.025 kg/s through…

A: To Find : The mass of air in the in the tank after t=200 sec of operation. Given :  The air…

Q: Determine change in specific entropy of the ideal gas from state 1 to state 2 in kJ/kg K

A: Given, State1:  T1=300 K      P1=100 kPAState 2:  T2=600 K      P2=500 kPAcp=1 kJ/kg-kR=cp-cvcv=0.7…

Q: Entropy Generation and Carnot Performance: Consider the diagram below of a heat pump, engine 1, that…

A:

Q: The insulated compressor of a large gas turbine received air from the surroundings at 1 bar and 20°C…

A: Given:P1=1 barT1=20°CP2=4 barT2=130°Cc2=120 m/sP=4,000 hp

Q: A x-kg M block and a y-kg N block, both initially at T1°C, are dropped into a large lake at 15°C.…

A: Given data as per the question Mass of tungsten block =53 kg Mass of steel block = 32 kg The…

Q: With your knowledge of the thermodynamic identity, derive a relationship for the heat capacities at…

A:

Q: A 40-lb aluminum bar, initially at Ta = 150°F, is placed in a tank together with 190 Ib of liquid…

A:

Q: A heat pump and a pipe through which water flows at a flow rate of 0.05kg/s are in interaction. At…

A: Given data:- flow rate of water=0.05 kg/s  inlet condition of water =saturated liquid state (2 bar…

Q: In a natural gas liquefaction plant, the liquefied natural gas (LNG) enters a cryogenic turbine at…

A:

Q: A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kg k…

A:

Q: 1 kg of water, T1 = 300 ° C, P1 = 200 kPa in a piston-cylinder assembly passes a process to its…

A: Given Data⇒ Mass of water (m) = 1 kg P1=200 KPa T1=3000C=573 K Piston cylinder assembly Constant…

Q: 2. Water at 21°C enters a pump as a saturated liquid with a volumetric flow rate of 0.3 m³/min…

A:

Q: 2 kg of Refrigerant-134a contained in a piston-cylinder device undergoes a reversed Carnot cycle.…

A:

Q: Air at T₁ = 20°C and P₁ = 100 kPa enters a compressor with a mass flow rate of m= 0.025 kg/s through…

A: Write the given data. T1=20 °CP1=100 kPam˙=0.025 kg/sD1=1 cmW˙c=3.5 kWT2=50 °CP2=650 kPaVtank=1.5…

Q: Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -12…

A: Temperature T1 = -12 C Rate = 18 kgm/min Pressure P1 = 5 bar Entropy change = 0.4842 KJ/K-min

Q: Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -12…

A: The saturated properties of R-134a at -12oC is h1=243.30 kJ/kg The entropy at vapor state is…

Q: urbine through a duct with a diameter of 0.5 m at 10 MPa , 600 °, and 100 m/s . It exits the turbine…

A:

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.