Can you answer this question? As shown in the figure below, Refrigerant 134a is contained in a piston-cylinder assembly, initially as saturated vapor. The refrigerantis slowly heated until its temperature is 130°C. During the process, the piston moves smoothly in the cylinder.For the refrigerant, evaluate the work, in kJ/kg.Patm=1 barPistonWeight = 471.1 ND= 0.02 mRefrigerant 134aInitial: Saturated vaporFinal: T₂2

Answered: Image /qna-images/answer/7557f263-4091-43dc-8391-fc980f5d9e7d.jpg

Answered: As shown in the figure below,…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

As shown in the figure below, Refrigerant 134a is contained in a piston-cylinder assembly, initially as saturated vapor. The refrigerant is slowly heated until its temperature is 155°C. During the process, the piston moves smoothly in the cylinder. For the refrigerant, evaluate the work, in kJ/kg. W/m = i kJ/kg. Patm = 1 bar Piston Refrigerant 134a imma - Weight=471.1 N D = 0.02 m Initial: Saturated vapor Final: T₂
As shown in the figure below, Refrigerant 134a is contained in a piston-cylinder assembly, initially as saturated vapor. The refrigerant is slowly heated until its temperature is 150°C. During the process, the piston moves smoothly in the cylinder. Weight 471.1 N D= 0.02 m Patm=I bar 3D Piston Initial: Saturated vapor Final: T2 Refrigerant 134a For the refrigerant, evaluate the work, in kJ/kg.
2. A piston-cylinder system has a mass of piston of 900 kg and an area of piston equals to 0.00981 m². At the start of the process, 1.0 kg of water in the system is at its saturated vapour state at 20.0 MPa. The system is allowed to cool, at a constant volume, until its internal and external pressures are the same. At the end of the isobaric process, half of the cylinder is filled with liquid and half with vapour, by volume. Given Atmospheric pressure, Patm = 100 kPa Acceleration due to gravity, g = 9.81 m/s² a) Find the pressure, temperature, volume, and quality of vapour at each of the 3 states. State Pressure, P kPa 1 2 3 Temperature, T Volume, V Quality of Vapour, x °C m³ b) Determine the work done for this process (in kJ). c) Sketch the T (in °C) vs v (in m³/kg) diagram for this process.
A spring-loaded piston-cylinder device contains m= 1kg of carbon dioxide. Initially, the spring has no force on the piston and P₁ = 500kPa, T₁=150K, V₁ = 0.1m³. 1 Heat is transferred to the gas, causing the piston to rise and to compress the spring. At the state 2, T₂=900K, V₂=0.3m³. The gas is an ideal gas. 2 (1)How to determine the pressure P at the state 2? 2 O A. O B. OC. O D. P1, V1, T1 P. = 2 V T V T 1 V T 2 V T 1 V V 1 2 V 2 T 1 2 T T 1 2 1 P₁ P₁ P₁ P₁ P2, V2, T2
A tank of compressed air is at 40°C and 10 atm. 1 third of the gas is removed for inflating a car tire. The tank is allowed to exchange heat with the surroundings to maintain its temperature at all times. What kind of a process is this? What is the pressure remaining in the tank? a. Sketch the problem. b.Draw lines identifying the control volume, or control mass. c.Identify the states with numbers, letters, or descriptions such as “in” and “out”. d.Write down the knowns and unknowns. e.Identify what is being asked for. f.State all assumptions.
Determine the amount of mass that enters the tank, in lb, and the heat transfer to the tank from its surroundings, in Btu.
1. 2.5 liters of superheated steam at 25 bar and 400 C (v = 0.1252 m³/kg) is expanded in an engine to a pressure of 0.1 bar (v. = 14.674 m³/kg, v₁ = 0.0010102 m³/kg) when its dryness fraction is 0.9. Find the final volume of the steam.
c) As shown in Figure A1-c, a gas is contained in a piston-cylinder assembly. The mass and the cross-sectional area of piston are 3.20 kg and 35 cm², respectively. During heating, the spring is compressed and applies a force of 0.15 kN on the piston when the initial volume increased by 3 litres. Determine the final pressure in the cylinder and the work done by the gas during this process. 150 N Patm = 95 kPa mp = 3.2 kg = 35 cm² Figure A1-c
A spring-loaded piston-cylinder device contains of m=1kg carbon dioxide. Initially, the spring has no force on the piston and P₁ = 500kPa, T₁ = 150K, V₁ = 0.1m³. Heat is transferred to the gas, causing the piston to rise and to compress the spring. At the state 2, T₁₂=900K, V₂=0.3m³. The gas is an ideal gas. (11) Calculate the heat transferred into the system in P1, V1, T1 P2, V2, T2 in kJ?
1) A piston-cylinder assembly contains 10 kg of refrigerant 134a. Initially, 8 kg of SA134a is in the liquid phase and the temperature is -10°C. Then there is a slow heat transfer to SA-134a, the piston rises and the piston touches the stoppers when the volume is 400 liters. (a) Show the phase change in the P-V diagram, (b) the temperature of the system at the moment the piston contacts the stoppers, (c) calculate the work done during the process.
Air as an ideal gas is contained in a piston/cylinder system constrained by a non-linear spring. Initially the gas in the cylinder is at 100 kPa, which is balanced by the atmospheric pressure outside of the cylinder (the weight of the piston is negligible). The force on the spring at the start is zero. The spring force is F=kx². k=600. kNt/m². The cross-sectional area of the piston is 1 m², the initial volume is 1 m³, and the initial temperature is 300 K. Heat is added until the volume of the gas has expanded to 1.5 m³. Find: (a) The work done by the gas on the face of the piston (kJ). (b) The final temperature (K). (c) The amount of heat added (kJ). Hint: This problem is easiest if you calculate the spring work and the atmospheric work separately. Air V₁=1.0 m³ Piston Area = 1.0 m² T₁=300 K P₁=100 kPa Atmospheric P on upper piston face= 100 kPa
In a Piston-Cylinder system, it initially contains 2.8 bar and 40 C temperature R-134a refrigerant and the initial volume is 0.1 m3. First, heat is transferred to the system by holding the piston constant and this process is continued until the pressure is 3.2 bar. The process is then continued by allowing the volume to change while the pressure is kept constant. At the end of this process, the temperature reaches 50 C. Assuming stable changes in state, calculate the following. a) R-134a refrigerant mass in the system, b) The amount of heat transferred during the constant volume process, c) Calculate the amount of heat transferred during constant pressure operation. d) Show the processes in the P-v diagram.

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS