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1. Saturated Liquid (S.L.) Ammonia at 10 C is throttled to -15 C a. Sketch the...
I need this ASAP thermodynamics and 450°C is throttled in a valve to a pressure of...
I need this ASAP thermodynamics
and 450°C is throttled in a valve to a pressure of 3MPa during a steady flow process. team at 7MPa Determine the entropy generated during this process kJ/(kg K) Sgen
A saturated liquid–vapor mixture of water, in a pipe line at 1.5 MPa is throttled to...
A saturated liquid–vapor mixture of water, in a pipe line at 1.5 MPa is throttled to 100 kPa and 150°C. Determine (a) the quality of the mixture (b) the entropy change during the throttling process.
Saturated liquid water at 10.0 MPa is throttled through a partially open valve (isenthalpic process) and...
Saturated liquid water at 10.0 MPa is throttled through a partially open valve (isenthalpic process) and discharged into a tank at a pressure 0.1 MPa adiabatically, aergonically, and without any change in its kinetic or potential energy. (NOTE: When the pressure on saturated liquid water is suddenly reduced in an adiabatic aergonic, steady flow process, part of the initial liquid is very quickly converted into a saturated vapor at the lower pressure, with the vaporization energy (heat of vaporization) coming...
Steam at 10 MPa, 600 'C is throttled to 1 MPa, and fed into an adiabatic...
Steam at 10 MPa, 600 'C is throttled to 1 MPa, and fed into an adiabatic mixing chamber where it is mixed with compressed liquid water at 1 MPa, 50 C. The exiting mass flow is 100 kg/s of saturated liquid at 1 MPa. For steady state operation, determine a) te mass flows of steam and liquid that enter, b) the rate of entropy generation due to throttling, and the rate of entropy generation due to mixing, c) te associa...
In an isobaric process, 1 litre of compressed liquid water at p 10 MPa, T 40°C...
In an isobaric process, 1 litre of compressed liquid water at p 10 MPa, T 40°C is heated to saturated liquid state (State 2), then evaporated to saturated vapor state (State 3), and then further heated to T4-450°C. Determine temperature, pressure, specific volume, internal energy, enthalpy and entropy in the four states; collect the data in a table. Then determine the work and the heat for the process. For state 1, also use the approximation based on saturation data to...
Question Number 1 (25 Marks) A mass of 0.5 kg of ammonia is contained in a...
Question Number 1 (25 Marks) A mass of 0.5 kg of ammonia is contained in a piston-cylinder assembly, initially at T1 = -20°C and U1 = 391.11 kJ/kg. The ammonia is slowly heated to state 2, where T2 = 20°C and P2 = 0.6 MPa, and the pressure varies linearly with specific volume during this process. From state 2, the system isºcompressed at constant pressure until the ammonia becomes a fully saturated vapor. Assume that there are no significant change...
A cylinder/piston arrangement contains saturated water at 115°C with a volume of 0.1 L (state 1)....
A cylinder/piston arrangement contains saturated water at 115°C with a volume of 0.1 L (state 1). The system is heated, causing the piston to rise and encounter a linear spring, as shown in figure. At this point (state 2) the volume is 15 L, the piston diameter is 230 mm, and the spring constant is 115 N/mm. The heating continues, so the piston compresses the spring until all the water becomes saturated vapor (state 3). Neglect the weight of the...
(a) An insulated piston cylinder device contains 5 L of saturated liquid water at a constant...
(a) An insulated piston cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. The cylinder was equipped with the electric heater inside it. The liquid is heated at constant pressure until it becomes saturated vapour. Determine the entropy change of the water during this process in kJ/K. (10 Marks) (b) A stream of refrigerant R134a enters a steady flow device at 100 kPa, 50 °C at a rate of 1 kg/s. Two streams...
Problem 1 [15 pts] Air (R=0.287 kJ/kgK), initially at 300 K and 100 kPa is heated...
Problem 1 [15 pts] Air (R=0.287 kJ/kgK), initially at 300 K and 100 kPa is heated to 450 K in an internally reversible closed system process. You do NOT need to show a system sketch for this problem. Using variable (temperature dependent) specific heats a. Find the specific entropy change (As= S2-S1) of air if the process occurs at constant pressure b. Find the specific entropy change (As= S2-S1) of air if the process occurs at constant volume c. Show...
A piston-cylinder device contains 10 kg of saturated water liquid at 0.4 MPa. Heat is transferred...
A piston-cylinder device contains 10 kg of saturated water liquid at 0.4 MPa. Heat is transferred at constant pressure until the temperature reaches 400 °C. (68 marks) a) Show the process on a P-v diagram with respect to the saturation line? b) What is the initial temperature of the system? c) What is the initial quality x? d) What is the initial specific enthalpy of the system? e) Determine the initial total volume of the system. f) What is the...
I need this ASAP thermodynamics
and 450°C is throttled in a valve to a pressure of 3MPa during a steady flow process. team at 7MPa Determine the entropy generated during this process kJ/(kg K) Sgen
Steam at 10 MPa, 600 'C is throttled to 1 MPa, and fed into an adiabatic mixing chamber where it is mixed with compressed liquid water at 1 MPa, 50 C. The exiting mass flow is 100 kg/s of saturated liquid at 1 MPa. For steady state operation, determine a) te mass flows of steam and liquid that enter, b) the rate of entropy generation due to throttling, and the rate of entropy generation due to mixing, c) te associa...
In an isobaric process, 1 litre of compressed liquid water at p 10 MPa, T 40°C is heated to saturated liquid state (State 2), then evaporated to saturated vapor state (State 3), and then further heated to T4-450°C. Determine temperature, pressure, specific volume, internal energy, enthalpy and entropy in the four states; collect the data in a table. Then determine the work and the heat for the process. For state 1, also use the approximation based on saturation data to...
Question Number 1 (25 Marks) A mass of 0.5 kg of ammonia is contained in a piston-cylinder assembly, initially at T1 = -20°C and U1 = 391.11 kJ/kg. The ammonia is slowly heated to state 2, where T2 = 20°C and P2 = 0.6 MPa, and the pressure varies linearly with specific volume during this process. From state 2, the system isºcompressed at constant pressure until the ammonia becomes a fully saturated vapor. Assume that there are no significant change...
A cylinder/piston arrangement contains saturated water at 115°C with a volume of 0.1 L (state 1). The system is heated, causing the piston to rise and encounter a linear spring, as shown in figure. At this point (state 2) the volume is 15 L, the piston diameter is 230 mm, and the spring constant is 115 N/mm. The heating continues, so the piston compresses the spring until all the water becomes saturated vapor (state 3). Neglect the weight of the...
(a) An insulated piston cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. The cylinder was equipped with the electric heater inside it. The liquid is heated at constant pressure until it becomes saturated vapour. Determine the entropy change of the water during this process in kJ/K. (10 Marks) (b) A stream of refrigerant R134a enters a steady flow device at 100 kPa, 50 °C at a rate of 1 kg/s. Two streams...
Problem 1 [15 pts] Air (R=0.287 kJ/kgK), initially at 300 K and 100 kPa is heated to 450 K in an internally reversible closed system process. You do NOT need to show a system sketch for this problem. Using variable (temperature dependent) specific heats a. Find the specific entropy change (As= S2-S1) of air if the process occurs at constant pressure b. Find the specific entropy change (As= S2-S1) of air if the process occurs at constant volume c. Show...
A piston-cylinder device contains 10 kg of saturated water liquid at 0.4 MPa. Heat is transferred at constant pressure until the temperature reaches 400 °C. (68 marks) a) Show the process on a P-v diagram with respect to the saturation line? b) What is the initial temperature of the system? c) What is the initial quality x? d) What is the initial specific enthalpy of the system? e) Determine the initial total volume of the system. f) What is the...
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