Carbon Dioxide is contained in a piston-cylinder assembly and undergoes a cycle made of the fol- lowing processes: • Process 1-2: Constant volume from 1 bar, 300 K to 600 K • Process 2–3: Polytropic expansion with n=k until P3 = P1 • Process 3-1: Isobaric compression (a) Sketch the cycle on p-v and T-v coordinates (b) Determine the work and heat transfer in each process, in kJ/kg (c) Determine the type of cycle that this is. If it is a power cycle, compute the thermal efficiency. Otherwise, compute the coefficient of performance for a heat pump cycle.

Question
Asked Oct 22, 2019
38 views

Carbon Dioxide is contained in a piston-cylinder assembly and undergoes a cycle made of the fol- lowing processes: • Process 1-2: Constant volume from 1 bar, 300 K to 600 K • Process 2–3: Polytropic expansion with n=k until P3 = P1 • Process 3-1: Isobaric compression (a) Sketch the cycle on p-v and T-v coordinates (b) Determine the work and heat transfer in each process, in kJ/kg (c) Determine the type of cycle that this is. If it is a power cycle, compute the thermal efficiency. Otherwise, compute the coefficient of performance for a heat pump cycle.

fullscreen
check_circle

Expert Answer

Step 1

Given data as per question

help_outline

Image Transcriptionclose

initial temperature=300k initial pressure 1 bar k-1.23 Process 1-2(constant volume process)

fullscreen
Step 2

We know that work done in constant volume is zero.

 

help_outline

Image Transcriptionclose

2 2 T 3 3 1 V 1P

fullscreen
Step 3
help_outline

Image Transcriptionclose

Wi-2 0 12mcdt m massis taken as 1kg because question ask for work per kg c, for carbon dioxide is 0.655 kj / kgk cpfor carbon dioxide is 0.844kj / kgk Q 0.655(600-300) Q 0.655 x300 Q 196.5kj/ kg Considering point 2-3 P2v2-P3v3 W2-3 k -1 from1-2 process

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Engineering

Mechanical Engineering

Thermodynamics

Related Mechanical Engineering Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: A 3000 lb car has a 5-speed manual transmission with 2 .31 ti (transmission ratio) , 1 .22 ti , 4.13...

A: (a) In order to calculate the input torque of transmission, tractive effort needs to be calculated w...

question_answer

Q: A piston-cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kPa and 120oC. The nitrog...

A: (a)The initial and final conditions of the process is given as:

question_answer

Q: Determine the tension in the cable and the tension or compression in the strut (a) graphically, (b) ...

A: Consider the following scale parameters.

question_answer

Q: One wall of a room measures 14 feet long and 8 feet high.  It's contains a window 5 feet wide and 3....

A: Given data as per question

question_answer

Q: In the system shown in the figure, the spring stiffness k = 2 × 103 N/m and the total massof the sys...

A: a) The free body diagram at the instant t, the mass system displaced x distance from the initial pos...

question_answer

Q: 7.29 A gearbox operating at steady state receives 4 hp along the input shaft and delivers 3 hp along...

A: (a)Write the expression for exergy balance.

question_answer

Q: I need help answering questions 4, 5, and 6 pertaining to the print provided below.

A:  4.Coordinate dimension location have boxes around them because it is representation standard of GD&...

question_answer

Q: Air is compressed steadily by a reversible compressor from an inlet state of 100kPa and 300K to an e...

A: (a)First we have to find the compressor work pressure with isentropic compression with k=1.4 

question_answer

Q: the Am1004-T61 magnesium tube is bonded to the A-36 steel rod. the allowable shear stresses for the ...

A: Write the expression of angle of twist.