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Question 9 20 pts A closed system of Ammonia in an equilibrium state has pressure p-800...
Ignore anything handwritten Problem 2 (50 points) A closed rigid tank contains of a two-phase liquid-vapor...
Ignore anything
handwritten
Problem 2 (50 points) A closed rigid tank contains of a two-phase liquid-vapor mixture of water, with a mass of 1 kg quality of x,-0.75, and a pressure of pi = 40 kPa (State 1 ). The system is heated in a constant- volume process till the pressure reaches p2-100 kPa (State 2) Sa) Determine the temperature, T, in "C, specific volume, Pi in m'/kg, and specific internal energy, ul, in kJ/kg at state 1; (12.5 points)...
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...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P b...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P before entering the CFWH. 12 kPa is pumped to a pressure of Pi-5 MPa After leaving the CFWH as a saturated liquid, the water continues to a Steam Generator which heats the water to a temperature of Ts 600°C. This superheated steam is used to drive a Turbine. A quantity...
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC...
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC undergoes adiabatic expansion through a turbine at a steady rate of 16.3 kg/s. The steam exits the turbine in a wet condition with a pressure of 0.34 bar and specific enthalpy of 2,355 kJ/kg. 25 points Determine the How Did I Do? How Did I Do? properties of the superheated steam at the turbine entrance (state 1): Specific volume, V: 0.0521 m^3/kg kJ/kg Specifio...
Propane is compressed from an initial state with a pressure of 100 lbf/in2 and a quality...
Propane is compressed from an initial state with a pressure of 100 lbf/in2 and a quality of 0.40 to a final saturated liquid state with a temperature is 50°F. Is it possible for this process to occur adiabatically? Justify your answer. Air is contained in a rigid, well-insulated container of volume 3 m3. The air undergoes a process from an initial state with a pressure of 200 kPa and temperature of 300 K. During the process, the air receives 720...
Q1 (a) A U-tube manometer is used to measure the pressure differential between two locations in...
Q1 (a) A U-tube manometer is used to measure the pressure differential between two locations in a building ventilation system. If this reads 80 mm H2O, which of the following correctly describes the pressure differential? (A) 0.080 Pa (B) 0.785 kPa (C) 0.785 Pa (D) 80 Pa (b) The specific enthalpy of 0.20 kg of water contained in a volume of 0.06 m3 at 500 kPa is (A) 1686 kJ•kg-1 (B) 2326.8 kJ•kg-1 (C) 2108.5 kJ•kg-1 (D) 2748.7 kJ•kg-1 (c)...
ANSWERS provided are just "ballpark values"... DO NOT WORK BACKWARD FROM THESE ANSWERS. NINE kg of...
ANSWERS provided are just "ballpark values"... DO NOT WORK BACKWARD FROM THESE ANSWERS. NINE kg of AIR and FOUR kg of HELIUM GAS are sealed in a rigid and insulated intenal-piston-cylinder device. Initially the helium is at 300 K and 800 kPa. The air is at 900 K and 200 kPa. When released, the rigid piston moves slowly and conducts heat from the hot gas to the cold gas. The mass and energy of the piston material are negligible. But...
PROBLEM 3 (40 A closed rigid tank contains 1 kg of ammonia and undergoes a constant...
PROBLEM 3 (40 A closed rigid tank contains 1 kg of ammonia and undergoes a constant specific volume process The initial pressure is 5 bar, initial temperature is 20 "C, and final pressure is 2 bar, please: (a) Draw the T-, diagram and locate the initial state (State l) in the T-v diagram; (5%) (b) Read the pertinent Table to find the specific volume, in mkg, and specific internal energy, in (c) Determine the specific volume, in mkg, of final...
Ignore anything
handwritten
Problem 2 (50 points) A closed rigid tank contains of a two-phase liquid-vapor mixture of water, with a mass of 1 kg quality of x,-0.75, and a pressure of pi = 40 kPa (State 1 ). The system is heated in a constant- volume process till the pressure reaches p2-100 kPa (State 2) Sa) Determine the temperature, T, in "C, specific volume, Pi in m'/kg, and specific internal energy, ul, in kJ/kg at state 1; (12.5 points)...
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...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
1. (20 points) Consider a cogeneration system operating at steady state. Superheated steam enters the first turbine stage at 6 MPa, 540 °C. Between the first and second stages, 45% of the steam is extracted at 500 kPa and diverted to a process heating load of 5 x 108 kl/h. Condensate exits the process heat exchanger at 450 kPa with specific enthalpy of 589.13 kl/kg and is mixed with liquid exiting the lower pressure pump at 450 kPa. The entire...
Refer to Figure 3 (below), depicting a regenerative Rankine cycle with a closed feedwater heater (CFWH) when considering the following system description. Saturated liquid water at a pressure of P before entering the CFWH. 12 kPa is pumped to a pressure of Pi-5 MPa After leaving the CFWH as a saturated liquid, the water continues to a Steam Generator which heats the water to a temperature of Ts 600°C. This superheated steam is used to drive a Turbine. A quantity...
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC undergoes adiabatic expansion through a turbine at a steady rate of 16.3 kg/s. The steam exits the turbine in a wet condition with a pressure of 0.34 bar and specific enthalpy of 2,355 kJ/kg. 25 points Determine the How Did I Do? How Did I Do? properties of the superheated steam at the turbine entrance (state 1): Specific volume, V: 0.0521 m^3/kg kJ/kg Specifio...
ANSWERS provided are just "ballpark values"... DO NOT WORK BACKWARD FROM THESE ANSWERS. NINE kg of AIR and FOUR kg of HELIUM GAS are sealed in a rigid and insulated intenal-piston-cylinder device. Initially the helium is at 300 K and 800 kPa. The air is at 900 K and 200 kPa. When released, the rigid piston moves slowly and conducts heat from the hot gas to the cold gas. The mass and energy of the piston material are negligible. But...
PROBLEM 3 (40 A closed rigid tank contains 1 kg of ammonia and undergoes a constant specific volume process The initial pressure is 5 bar, initial temperature is 20 "C, and final pressure is 2 bar, please: (a) Draw the T-, diagram and locate the initial state (State l) in the T-v diagram; (5%) (b) Read the pertinent Table to find the specific volume, in mkg, and specific internal energy, in (c) Determine the specific volume, in mkg, of final...
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