Piston work using Steam tables: Problem 3) 0.1 kg of Steam is expanded in a piston...
Piston work using Steam tables:
Problem 3) 0.1 kg of Steam is expanded in a piston to do work. If the steam is expanded in a piston engine at a constant pressure of 200kPa starting at a temperature of 500C. The piston has a diameter of 0.3m and a stroke of 1m. Find:
- The initial state of the piston (P,T,v, u,h,s)
- The initial volume of the cylinder
- The final state of the fluid P,T,v,u,h,s (hint compute the final volume and spec. volume)
- The work done by this process.
- The total internal energy change in this process.
- The ratio of the total work to the total internal energy. (What does this mean?
Homework Answers
Add Answer to:
Piston work using Steam tables:
Problem 3) 0.1 kg of Steam is expanded in a piston...
A piston–cylinder device contains steam initially at 1 MPa, 450°C. Steam is allowed to cool at...
A piston–cylinder device contains steam initially at 1 MPa, 450°C. Steam is allowed to cool at constant pressure until it becomes saturated vapor. Find the internal energy (u) on the initial and final states. Find the specific volume (v) on the initial and final states. Find the boundary work associated with the transformation. Write the conservation of energy equation, and simplify it. Deduce the amount of heat transferred per unit mass. Represent the process on P-v diagram, showing the saturation...
write clearly 2.48 Steam in a piston-cylinder assembly undergoes a poly- tropic process, with n 2,...
write clearly
2.48 Steam in a piston-cylinder assembly undergoes a poly- tropic process, with n 2, from an initial state where p 3.45 MPa, v 0.106 m/kg, u 3,171.1 kJ/kg, to a final state where u 2,303.9 kJ/kg. During the process, there is a heat transfer from the steam of magnitude 361.76 kJ. The mass of steam is 0.54 kg. Neglecting changes in kinetic and potential energy, determine the work, in kJ, and the final specific volume, in m'/kg.
1 A piston-cylinder device initially contain 0.4 m3 of 1.8- kg saturated liquid water and steam...
1 A piston-cylinder device initially contain 0.4 m3 of 1.8- kg saturated liquid water and steam mixture at 110 kPa. A electric heater in the device is turned on and passes a current of 1.7 A from a 120-V source. Only transfer of electrical work and boundary work exist. The piston initially rests on a set of stops, and a pressure of 200 kPa is required to move the piston. Afterwards the system continues to raise the piston and eventually...
A piston-cylinder device initially contain 0.4 m3 of 1.8-kg saturated liquid water and steam mixture at...
A piston-cylinder device initially contain 0.4 m3 of 1.8-kg saturated liquid water and steam mixture at 110 kPa. A electric heater in the device is turned on and passes a current of 1.7 A from a 120-V source. Only transfer of electrical work and boundary work exist. The piston initially rests on a set of stops, and a pressure of 200 kPa is required to move the piston. Afterwards the system continues to raise the piston and eventually reaches the...
A piston-cylinder device initially contain 0.4 m3 of 1.8-kg saturated liquid water and steam mixture at...
A piston-cylinder device initially contain 0.4 m3 of 1.8-kg saturated liquid water and steam mixture at 110 kPa. A electric heater in the device is turned on and passes a current of 1.7 A from a 120-V source. Only transfer of electrical work and boundary work exist. The piston initially rests on a set of stops, and a pressure of 200 kPa is required to move the piston. Afterwards the system continues to raise the piston and eventually reaches the...
A piston-cylinder device initially contain 0.4 m3 of 1.8-kg saturated liquid water and steam mixture at...
A piston-cylinder device initially contain 0.4 m3 of 1.8-kg saturated liquid water and steam mixture at 110 kPa. A electric heater in the device is turned on and passes a current of 1.7 A from a 120-V source. Only transfer of electrical work and boundary work exist. The piston initially rests on a set of stops, and a pressure of 200 kPa is required to move the piston. Afterwards the system continues to raise the piston and eventually reaches the...
Considering that 0.1 kg of gas contained within a piston-cylinder assembly undergoes a polytropic expansion process...
Considering that 0.1 kg of gas contained within a piston-cylinder assembly undergoes a polytropic expansion process with polytropic exponent n=2. The initial state has specific internal energy 10 J/kg, pressure 100 Pa, specific volume 2 m3/kg, and the final state has specific internal energy 5 J/kg and pressure 50 Pa. 1. Sketch the process on a P − V diagram 2. Determine the total heat transfer into or out of the gas during the process.
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses hea...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses heat to the surroundings and the piston moves down, hitting a set of stops, at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at .200C. Determine the initial temperature of the steam a. b. Sketch the process on a P-v an T-v diagram Determine the initial specific enthalpy, in kJ/kg d. Determine the enthalpy change...
Soru (2 points) Five kg of steam undergo an expansion in a piston cylinder assembly from...
Soru (2 points) Five kg of steam undergo an expansion in a piston cylinder assembly from state 1 to state 2. The amount of heat transfer from the heat source to the steam and the amount of work transfer from the paddle wheel to the steam are shown in the figure. The specific internal energy change of the steam during this process is also illustrated. Determine the amount of energy transfer by work from the steam to the piston during...
A piston - cylinder device contains 0.15 kg of steam at 1 MPa and 320 degree...
A piston - cylinder device contains 0.15 kg of steam at 1 MPa and 320 degree C. The steam now expand to a final state of 150 kPa and 160 degree C. Energy losses via heat transfer from system to surroundings are estimated to be 3KJ, while the contact temperature with the surroundings is 25 degree C.Assuming: T0=25c and P0=100kPa,Determine: A: the available energy of the steam at the initial and final states B: the work done by the system...
write clearly
2.48 Steam in a piston-cylinder assembly undergoes a poly- tropic process, with n 2, from an initial state where p 3.45 MPa, v 0.106 m/kg, u 3,171.1 kJ/kg, to a final state where u 2,303.9 kJ/kg. During the process, there is a heat transfer from the steam of magnitude 361.76 kJ. The mass of steam is 0.54 kg. Neglecting changes in kinetic and potential energy, determine the work, in kJ, and the final specific volume, in m'/kg.
1 A piston-cylinder device initially contain 0.4 m3 of 1.8- kg saturated liquid water and steam mixture at 110 kPa. A electric heater in the device is turned on and passes a current of 1.7 A from a 120-V source. Only transfer of electrical work and boundary work exist. The piston initially rests on a set of stops, and a pressure of 200 kPa is required to move the piston. Afterwards the system continues to raise the piston and eventually...
Problem 5- A piston-cylinder device initially contains steam at 3.5 MPa, superheated by .10°C. Now, steam loses heat to the surroundings and the piston moves down, hitting a set of stops, at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at .200C. Determine the initial temperature of the steam a. b. Sketch the process on a P-v an T-v diagram Determine the initial specific enthalpy, in kJ/kg d. Determine the enthalpy change...
Soru (2 points) Five kg of steam undergo an expansion in a piston cylinder assembly from state 1 to state 2. The amount of heat transfer from the heat source to the steam and the amount of work transfer from the paddle wheel to the steam are shown in the figure. The specific internal energy change of the steam during this process is also illustrated. Determine the amount of energy transfer by work from the steam to the piston during...
Most questions answered within 3 hours.
-
Temperament can play a role in parenting style and, sometimes, it
can be challenging for a...
asked 2 minutes ago -
Company XYZ uses a standard costing to evaluate operational
performance against budget.
The following budget and...
asked 4 minutes ago -
How does procurement play a role in the value chain process?
Give an example.
asked 14 minutes ago -
6.) A clay vase on a potter's wheel experiences an angular
acceleration of 7.90 rad/s2 due...
asked 15 minutes ago -
Question about JS form validation:
I want to check these two input (name, question) with
one...
asked 16 minutes ago -
Acetic acid, CH3COOH, Ka = 1.8 x 10-5 can be converted
into the acetate ion, CH3COO-2,...
asked 18 minutes ago -
An optical fiber consisting of a core made of glass (n = 1.667)
surrounded by a...
asked 20 minutes ago -
Bright and dark fringes are seen on a screen when light from a
single source reaches...
asked 28 minutes ago -
C9H12
13C NMR
7 peaks
1H NMR
δ 1.13 (triplet, 3H); δ 1.71 (multiplet, 2H); δ...
asked 40 minutes ago -
Consider a monoatomic ideal gas undergoing the following cycle:
starting point (a), pressure increases at a...
asked 39 minutes ago -
10) (a) In a hypothesis testing procedure explain the difference
between a type 1 and type...
asked 41 minutes ago -
Given the line notation, identify the anodic and
cathodic reactions and overall reaction:
Ag(s)| AgCl(s) |...
asked 1 hour ago