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2-6 (2o pts.) A rigid 1-m3 tank receives 500 kJ of heat and paddle work delivered...
SP04 A rigid, poorly insulated tank with a volume of V1.0 m3 initially contains a saturated...
SP04 A rigid, poorly insulated tank with a volume of V1.0 m3 initially contains a saturated water vapor (quality of 1.0) at a pressure of 3 bars (300 kPa). The tank is connected to a supply line containing steam at a pressure of pL- 10 bars (1000 kPa) and a temperature of TL 500°C. The valve is opened and 2.0 kg of steam enters the rigid tank, after which the valve is closed. The pressure is measured after the valve...
NEED HELP A rigid, poorly insulated tank with a volume of V1.0 m3 initially contains a...
NEED HELP
A rigid, poorly insulated tank with a volume of V1.0 m3 initially contains a saturated water vapor (quality of 1.0) at a pressure of 3 bars (300 kPa). The tank is connected to a supply line valve is opened and 2.0 kg of steam enters the rigid tank, after which the valve is closed. The pressure is measured after the valve is closed and it is found that p2-5 bars (500 kPa). Find (a) the state of the...
A 0.7-m3 rigid tank contains refrigerant-134a initially at 160 kPa and 40 percent quality. Heat is...
A 0.7-m3 rigid tank contains refrigerant-134a initially at 160 kPa and 40 percent quality. Heat is now transferred to the refrigerant until the pressure reaches 600 kPa. Determine the amount of heat transferred.
2. A rigid tank of 0.8 m contains 7 kg of Sulfur dioxide. A paddle wheel...
2. A rigid tank of 0.8 m contains 7 kg of Sulfur dioxide. A paddle wheel (shaft work) is used to transfer energy to the sulfur dioxide at a rate of 30 W for two hours. If the specific internal energy increases by 30 kJ/kg during this process, determine the following: a) The final specific volume b) Work transfer c) Heat transfer Ignore kinetic and potential energy effects
A closed, rigid tank fitted with a paddle wheel contains 1.6 kg of air, initially at...
A closed, rigid tank fitted with a paddle wheel contains 1.6 kg of air, initially at 200oC, 1 bar. During an interval of 10 minutes, the paddle wheel transfers energy to the air at a rate of 1 kW. During this time interval, the air also receives energy by heat transfer at a rate of 0.5 kW. These are the only energy transfers. Assume the ideal gas model for the air, and no overall changes in kinetic or potential energy....
Problem 1 A piston-cylinder system contains a paddle stirrer (a paddle with blades that can stir...
Problem 1 A piston-cylinder system contains a paddle stirrer (a paddle with blades that can stir the contents of the cylinder). The cylinder contains a gas that is initially at 150 kPa and occupies a volume of 0.196 m3 . The piston is unrestrained and has a cross-sectional area of 0.196 m2 . 20 kJ of electrical energy is supplied to the paddle stirrer, resulting in the piston moving up by 0.2 m. During this process, 5.27 kJ of heat...
1. (10 pts) A 10 m® rigid storage tank contains oxygen gas (R = 0.2598 kJ/kg.K,...
1. (10 pts) A 10 m® rigid storage tank contains oxygen gas (R = 0.2598 kJ/kg.K, Cp = 0.918 kJ/kg.K, cv = 0.658 kJ/kg.K). The tank is initially 200 kPa and 600° It is cooled to 25°C in 35 minutes. Determine: 1. (3 pts) The mass of oxygen in the tank, in kg. 2. (3 pts) The final pressure in the tank, in kPa. 3. (4 pts) The rate of heat transfer from the oxygen, in kW.
An initially empty, well insulated, rigid tank with a volume of 2 m3 is fitted with...
An initially empty, well insulated, rigid tank with a volume of 2 m3 is fitted with a mixing device. The tank has two inlets and zero outlets. One inlet is water at 1 MPa and 600◦C while the other is saturated liquid water. Both enter the tank slowly. If the amount of work done by the mixing device is 300 kJ, what must the temperature of the saturated liquid water be if the same mass is added through both inlets...
1. A Carnot cycle receives 1000 kJ of heat at 800 ºC and rejects heat at...
1. A Carnot cycle receives 1000 kJ of heat at 800 ºC and rejects heat at 300 ºC. Calculate the work output. 2. Steam enters an adiabatic turbine at 7MPa and 600 ◦C and leaves at a pressure of 400 kPa. Determine the maximum amount of work that can be delivered by the turbine.
Thermodynamics 1. (correct answer: 0.080595 ) Initially, an insulated rigid tank contains 20 kg of water...
Thermodynamics 1. (correct answer: 0.080595 ) Initially, an insulated rigid tank contains 20 kg of water at 29.5oC and 101 kPa. The tank also contains a 4.86 kg aluminum block at 93.2oC. Using constant specific heats evaluated at 300 K, determine the total entropy production (kJ/K) after an hour assuming thermal equilibrium is achieved. 2. Correct Answer: 8.0087 ± 0.1% Steam at 1 MPa, 593.2oC, expands in a turbine to 0.01 MPa. If the process is isentropic, find the specific...
SP04 A rigid, poorly insulated tank with a volume of V1.0 m3 initially contains a saturated water vapor (quality of 1.0) at a pressure of 3 bars (300 kPa). The tank is connected to a supply line containing steam at a pressure of pL- 10 bars (1000 kPa) and a temperature of TL 500°C. The valve is opened and 2.0 kg of steam enters the rigid tank, after which the valve is closed. The pressure is measured after the valve...
NEED HELP
A rigid, poorly insulated tank with a volume of V1.0 m3 initially contains a saturated water vapor (quality of 1.0) at a pressure of 3 bars (300 kPa). The tank is connected to a supply line valve is opened and 2.0 kg of steam enters the rigid tank, after which the valve is closed. The pressure is measured after the valve is closed and it is found that p2-5 bars (500 kPa). Find (a) the state of the...
2. A rigid tank of 0.8 m contains 7 kg of Sulfur dioxide. A paddle wheel (shaft work) is used to transfer energy to the sulfur dioxide at a rate of 30 W for two hours. If the specific internal energy increases by 30 kJ/kg during this process, determine the following: a) The final specific volume b) Work transfer c) Heat transfer Ignore kinetic and potential energy effects
1. (10 pts) A 10 m® rigid storage tank contains oxygen gas (R = 0.2598 kJ/kg.K, Cp = 0.918 kJ/kg.K, cv = 0.658 kJ/kg.K). The tank is initially 200 kPa and 600° It is cooled to 25°C in 35 minutes. Determine: 1. (3 pts) The mass of oxygen in the tank, in kg. 2. (3 pts) The final pressure in the tank, in kPa. 3. (4 pts) The rate of heat transfer from the oxygen, in kW.
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