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6. (10) Water with the mass of 5g is placed in an isolated (no heat exchange...
Problem 2: 35 points A cylinder of 5 m height is fitted with a massless piston of negligible thickness and diameter...
Problem 2: 35 points A cylinder of 5 m height is fitted with a massless piston of negligible thickness and diameter D-Im. Initially, the piston is at the top of the cylinder and 5 kg of boiling water at 100rC existed below the piston. 3000 kg of liquid water at 20C were poured slowly and at a constant rate over the piston to compress the boiling water. Neglect kinetic and potential energy changes a) Find the work done on the...
A piston–cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this...
A piston–cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now slowly transferred to the steam until the volume becomes 1.5 m3. Use the data from the steam tables. a) Determine the final temperature. b) Determine the work done during this process. c)...
Referring to the figure shown below, water contained in a piston–cylinder assembly, initially at 1.5 bar...
Referring to the figure shown below, water contained in a piston–cylinder assembly, initially at 1.5 bar and a quality of 60%, is heated at constant pressure until the piston hits the stops. Heating then continues until the water is saturated vapor. The initial height, L1, is 0.05 m and the change in height, L2, is 0.03 m. For the overall process of the water, evaluate the work and heat transfer, each in kJ/kg. Kinetic and potential effects are negligible.
A water-vapor mixture with a mass of 0.5 kg of at a quality of 50% is...
A water-vapor mixture with a mass of 0.5 kg of at a quality of 50% is initially contained in a piston-cylinder assembly. The piston is unrestrained and it is weighted such that it maintains a constant pressure of 500 kPa inside the cylinder. Heat is transferred to the cylinder from a thermal energy source until the steam reaches saturated vapor conditions. Determine: (a) the total heat transfer, (b) the total amount of entropy production for the entire process, (c) Indicate...
Required information A piston-cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa....
Required information A piston-cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now slowly transferred to the steam until the volume becomes 1.3 m3. Use the data from the steam tables. Determine the final temperature. (You must provide an answer before moving on...
Arigidtankofvolume0.5m3isconnectedtoapiston–cylinderassemblybyavalve,asshown below. Both vessels contain pure water. They are immersed in a constant-temperature bath at 200oC...
Arigidtankofvolume0.5m3isconnectedtoapiston–cylinderassemblybyavalve,asshown below. Both vessels contain pure water. They are immersed in a constant-temperature bath at 200oC and 600 kPa. Consider the tank and the piston–cylinder assembly as the system and the constant temperature bath as the surroundings. Initially the valve is closed and both units are in equilibrium with the surroundings (the bath). The rigid tank contains saturated water with a quality of 95% (i.e., 95% of the mass of water is vapor). The piston–cylinder assembly initially has a volume...
of liquid water and 0.9 m2 of water vapor in equilibrium at 600 kPa. Heat is...
of liquid water and 0.9 m2 of water vapor in equilibrium at 600 kPa. Heat is transferred at constant pressure until the temperature 3-51 A piston-cylinder device contains 0.005 m reaches 200°C What is the initial temperature of the water Determine the total mass of the water Chlouwle the final volume. Show the process on a pu diagram with respect to s tation lines. HO P600 kPa FIGURE P3-51
Water in a piston-cylinder assembly is initially at a pressure of 10 bar and a temperature...
Water in a piston-cylinder assembly is initially at a pressure of 10 bar and a temperature of 500 C. The water is cooled and compressed at constant pressure until it becomes a saturated vapor. The water is then cooled at a constant volume until it reaches a temperature of 150 C. a) Sketch both processes on T-v and p-v diagrams (v here is specific volume). b) Determine the total work for the overall processes. c) Determine the heat transfer for...
3.) A steam of 80% quality at 300 kPa and a mass of 3 Kg is...
3.) A steam of 80% quality at 300 kPa and a mass of 3 Kg is heated at constant pressure until the temperature increased 66.5 Co. Calculate the change in entropy due to the heating process. 2. Determine if the process reversable, irreversible or impossible. 3. Plot the TS diagram showing all the states and numbers on it. 4.) A 0.5 kg of saturated water vapor at 300°C is heated in a piston-cylinder device. Now the steam expanded reversibly and...
3.) A steam of 80% quality at 300 kPa and a mass of 3 Kg is...
3.) A steam of 80% quality at 300 kPa and a mass of 3 Kg is heated at constant pressure until the temperature increased 66.5 Calculate the change in entropy due to the heating process. 2. Determine if the process reversable, irreversible or impossible. 3. Plot the TS diagram showing all the states and numbers on it. 4) A 0.5 kg of saturated water vapor at 300°C is heated in a piston-cylinder device. Now the steam expanded reversibly and isothermally...
Problem 2: 35 points A cylinder of 5 m height is fitted with a massless piston of negligible thickness and diameter D-Im. Initially, the piston is at the top of the cylinder and 5 kg of boiling water at 100rC existed below the piston. 3000 kg of liquid water at 20C were poured slowly and at a constant rate over the piston to compress the boiling water. Neglect kinetic and potential energy changes a) Find the work done on the...
Required information A piston-cylinder device initially contains 0.6 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now slowly transferred to the steam until the volume becomes 1.3 m3. Use the data from the steam tables. Determine the final temperature. (You must provide an answer before moving on...
of liquid water and 0.9 m2 of water vapor in equilibrium at 600 kPa. Heat is transferred at constant pressure until the temperature 3-51 A piston-cylinder device contains 0.005 m reaches 200°C What is the initial temperature of the water Determine the total mass of the water Chlouwle the final volume. Show the process on a pu diagram with respect to s tation lines. HO P600 kPa FIGURE P3-51
3.) A steam of 80% quality at 300 kPa and a mass of 3 Kg is heated at constant pressure until the temperature increased 66.5 Co. Calculate the change in entropy due to the heating process. 2. Determine if the process reversable, irreversible or impossible. 3. Plot the TS diagram showing all the states and numbers on it. 4.) A 0.5 kg of saturated water vapor at 300°C is heated in a piston-cylinder device. Now the steam expanded reversibly and...
3.) A steam of 80% quality at 300 kPa and a mass of 3 Kg is heated at constant pressure until the temperature increased 66.5 Calculate the change in entropy due to the heating process. 2. Determine if the process reversable, irreversible or impossible. 3. Plot the TS diagram showing all the states and numbers on it. 4) A 0.5 kg of saturated water vapor at 300°C is heated in a piston-cylinder device. Now the steam expanded reversibly and isothermally...
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