3.25 WP As shown in Fig. P3.25, Refrigerant 134a is contained in a piston-cylinder assembly, initially as saturated vapor. The refrigerant is slowly heated until its temperature is 160°C. Dur- ing the process, the piston moves smoothly in the cylinder. For the refrigerant, evaluate the work, in kJ/kg. Patm = 1 bar Piston Refrigerant 134a Weight=471.1 N D = 0.02 m Initial: Saturated vapor Final: 7₂ = 160°C

3.25 WP As shown in Fig. P3.25, Refrigerant 134a is contained in a piston-cylinder assembly, initially as saturated vapor. The refrigerant is slowly heated until its temperature is 160°C. Dur- ing the process, the piston moves smoothly in the cylinder. For the refrigerant, evaluate the work, in kJ/kg. Patm = 1 bar Piston Refrigerant 134a Weight=471.1 N D = 0.02 m Initial: Saturated vapor Final: 7₂ = 160°C

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

Related questions

Q: A closed system consisting of 10 Ib of air undergoes a polytropic process from p1 = 80 lbf/in?, v1 =…

Q: Q1: A piston-cylinder device initially contains 3 kg of air at 5 bar and temperature 27°C. The air…

A: GIVEN: Mass of Air = 3 kg P1= 5 bar T1= 27° C=300 K The air the expands at constant pressure to 0.3…

Q: compr ed ad 3 litres. Heat is then suppled at constant volume until the pressure becomes 1.85 MN/m?.…

Q: A closed, rigid tank is filled with only saturated vapor (water), initially at 20 bar, is cooled…

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

Q: Water substance is contained in a piston-cylinder device initially at 1.0MPA and 0.2678m /kg. It is…

A: Represent the state of the water for the whole process on the P-V diagram.

Q: One kg of air is compressed in a cylinder for each of the quasi-equilibrium processes in the table…

A: considering the given systems (a)constant volume processQ=ΔU+WW=0Q=ΔU=200 kjΔh=200 kjInternal…

Q: Determine the work and heat transfer for each process, all in Btu.

A: It is given that mass of water (m)= 2 lb Initial pressure (P1)= 100 lbf/in2 Initial temperature…

Q: A closed, rigid tank is filled with only saturated vapor (water), initially at 20 bar, is cooled…

A: We are suppose to solve only 3 subparts. Please post other parts as a separate question.

Q: An ideal gas of mass 1 kg is enclosed in rig nsulated container of volume 1 m' (C, = 1000 J/kgl , =…

A: Given: An ideal gas,mass of gas, m=1 kgVolume of insulated container, V=1 m3Cp=1000 J/kg.KCv=800…

Q: P2.2 A fixed quantity of steam of mass 0.013 kg is heated at a constant pressure of 3 bar. The…

Q: Suppose, you are cooking meat in pressure cooker at your home. What type of system would you model?…

Q: calculate the final pressure in bar to 3 decimal places.

A: For solution refer below images.

Q: Air expands adiabatically in a piston-cylinder assembly from an initial state where p₁ = 100…

A: Given:Initial pressure, P1=100 lbf/in2Initial volume, v1=3.704 ft3/lbInitial temperature,…

Q: Air expands adiabatically in a piston-cylinder assembly from an initial state where p₁ = 100…

Q: A piston-cylinder assembly contains 0.7 lb of propane. The propane expands from an initial state…

Q: Given:- a cylinder fitted with a piston is filled with m= 700 lb of saturated liquid ammonia at…

Q: Air is compressed in a piston-cylinder assembly from p₁=10 lb/in², T₁ = 500°R, V₁ = 9 ft³ to a final…

Q: One pound of an ideal gas undergoes an isentropic process from 95.3 psig and a volume of 0.9ft to a…

A: As per our guidelines we are supposed to solve only 3 subparts if multiple subparts are asked.…

Q: a- A piston cylinder maintaining gas at 137kpa , 16°C, and the volume is 0.2 m3. The gas is…

A: Dear student, In this post, there are three different problems but according to…

Q: Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated…

A: Any thermodynamic process can be shown by the following equation: PVn=C As n varies, the process…

Q: 2. a.) Find the work done by a 1-kg hydrogen on a piston when this gas compresses isothermally at…

Q: is compressed in a piston-cylinder assembly from p₁ = 25 lbg/in², T₁ = 500°R, V₁ = 9 ft³ to a final…

A: Given-To find-work and heat transfer in Btu

Q: piston-cylinder assembly contains 2 Ib of water, initially at 100 Ibf/in.2 and 500°F. The water…

A: Given-Data:- m=2l P1=100psiT1=500°Fx3=60%=0.6T3=300°FP3=66.9psi To-find:- Work and heat transfer

Q: A closed tank with a constant volume equal to 1.0 m3 contains 3.5 kg of water at 4.0 bar pressure.…

Q: Q1 a- A piston cylinder maintaining gas at 137kpa , 16°C, and the volume is 0.2 m3. The gas is…

Q: A closed system consists of gas of 2 kg initially in state 1 with P1 = 4bar and specific volume v1 =…

Q: 1Kg of water contained in a piston-cylinder assembly undergoes five processes in series as follows:…

A: P1=P2=P5=10 barP3=P4=5 barV2=V3V4=V5x4=0.45T3=180°C=453 K

Q: A piston-cylinder assembly with a linear spring acting on the piston as shown below contains the…

A: as per guideline i have to solve only three subpart of your question

Q: Q3: A- 0.5kg/s of a fluid flows in a steady state process. The properties of fluid at entrance are…

A: First law of thermodynamics is based on conservation of energy. It can be written as: dQ=dU+W where,…

Q: :the initial quality (x1) is 2 kg of ammonia is contained in a rigid sealed tank at 10 °C. The…

Q: On a T-V diagram sketch the constant specific volume through the reference state (state 0) T = 250C,…

A: given; draw T-V diagram for water at different temperature ?

Q: 2.43 A steel tank contains 6 kg of propane (liquid + vapor) at 20°C with a volume of 0.015 m. The…

A: Given in Question:- value of propane:6kg temp:20 C Volume : .015 m3

Q: Q2: A piston-cylinder system contains 1 kg of air at (V1, P1, T1). The air is heated at constant…

A: Given: The air is heated at constant pressure until the volume doubled. The air is compressed…

Q: A substance initially at 67kPa, 58 m³ is compressed to 167 kPa in a process where PV=const., n =…

Q: Determine the quality at the final state and the change in specificentropy, in Btu/lb-°R, for the…

Q: A closed, rigid tank is filled with only saturated vapor (water), initially at 20 bar, is cooled…

A: We are suppose to solve only 3 subparts. Please post other parts as a separate question.

Q: Example 2: A system consists of N, in a piston-cylinder assembly, initially at P, = 20 psi, and…

Q: A piston-cylinder assembly contains a mystery substance that undergoes a series of processes.…

A: thermodynamic cycle A thermodynamic cycle consists of a linked sequence of thermodynamic processes…

Q: 4.23 Two kilograms of water are contained in a piston/cylinder (Fig. P4.23) with a massless piston…

Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

3.25 WP As shown in Fig. P3.25, Refrigerant 134a is contained
in a piston-cylinder assembly, initially as saturated vapor. The
refrigerant is slowly heated until its temperature is 160°C. Dur-
ing the process, the piston moves smoothly in the cylinder. For
the refrigerant, evaluate the work, in kJ/kg.
Patm = 1 bar
Piston
Refrigerant 134a
m
FIGURE P3.25
Weight=471.1 N
D = 0.02 m
Initial: Saturated vapor
Final: T₂ = 160°C

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Determine the given variable

VIEW

Step 2: Calculate the inside pressure in the cylinder

VIEW

Step 3: Calculate the final pressure of the given process

VIEW

Step 4: Calculate the work done of the given process

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 6 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Saturated water vapor initially at a pressure of 225 kPa and volume 0.01 is contained in a piston cylinder assembly. The water undergoes two processes in series:Process 1-2: Constant volume process till the pressure is 2 bars.Process 2-3 : Constant pressure process till the volume is doubled.Determine:a) the temperature at state 3b) the total amount of work for process 1-3c) the total amount of heat transfer for process 1-3. v1 (m3/kg) Format : 0.72765 m (kg) Format : 0.0622 v3 (m3/kg) Format : 7.8553 W2-3 (kJ) Format : 5.7285 u1 (kJ/kg) Format : 2832.5 u2 (kJ/kg) Format : 7592.79 Q1-2 (kJ) Format : -4.87 u3 (kJ/kg) Format : 8499.67 Q2-3 (kJ) Format : 60.34 Q1-3 (kJ) Format : 5.9 T3 (oC) Format : 822.09
20 g of air undergoes a closed cycle, illustrated in Figure Q2, which consists of the following 3 processes: 1-2 Constant pressure heat rejection. 2-3 Constant volume heat addition. 3-1 Isothermal expansion back to the original conditions. P (kPa) 75 1 V (m') 0.025 0.04 Figure Q2: Three process cycle Given that Rair = 287 J/kg-K, and Cy = 718 J/kg-K, and assuming ideal gas conditions throughout: (a) Determine the temperatures at points 1, 2 and 3, and the pressure at point 3. (b) Determine the work during each process, and the net work from the cycle. (c) Determine the heat transferred during each process. (d) Verify that this is a cycle.
A piston-cylinder assembly contains a mystery substance that undergoes a series of processes. Process 1-->2: Constant pressure process at 5bar from v1=.07m3/kg to v2=.12m3/kg Process 2->3: Constant volume process to saturated vapor Process 3->4: Constant temperature process to quality of 50% Process 4->5: Constant volume process to 5bar Sketch the processes on Pt, Pv, and Tv, plots. Lable the axes including property values; use closed dots to show the states, use solid lines to connect the states, add number and arrows to make clear the states numbers and process directions. Could this be considered a thermodynamic cycle? Why or why not?
1 - Consider 2 kg of water in a cylinder blocked by a piston at 20 C, 200 kPa. Water is heated and piston starts to rise. When the piston reaches the blocks, the volume of water has doubled. Heating continues until the pressure also doubles. Calculate the work done by water and the amount of heattransfer. Consider the case that the piston is restricted by the linear spring. Initially the spring is at rest. Water is heated until the piston reaches the blocks. Just before it hits the blocks the pressure is twice the initial pressure. Calculate the work done by water and the amount of heat transfer by the time the piston reaches the blocks. 7 D H₂0
Air expands adiabatically in a piston-cylinder assembly from an initial state where p₁ = 100 lbf/in.², v₁ = 3.704 ft³/lb, and T₁ = 1000 °R, to a final state where p₂ = 30 lbf/in.²2 The process is polytropic with n = 1.4. The change in specific internal energy, in Btu/lb, can be expressed in terms of temperature change as Au = (0.171)(T₂ - T₁). Determine the final temperature, in °R. Kinetic and potential energy effects can be neglected. T₂ = i °R
Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 0C to a volume of 0.085 m3. If the initial volume occupied was 0.02 m3, calculate the final pressure in bar to 3 decimal places. Assume nitrogen to be a perfect gas and take cv = 0.63 k J / k g K.
3.26 Determine the quality (if saturated) or temperature substances at the given two states: a. Water at b. Nitrogen at c. Ammonia at d. R-22 at 1: 120°C, 1 m³/kg; 1: 1 MPa, 0.03 m³/kg; 1: 400 kPa, 0.327 m³/kg; 1: 130 kPa, 0.1 m³/kg; (if superheated) of the following 2: 10 MPa, 0.01 m³/kg 2: 100 K, 0.03 m³/kg 2: 1000 kPa, 0.1 m³/kg 2: 150 kPa, 0.17 m³/kg
2. A tank contains 1 kg mass gas whose density is 700 kg/m3. The pressure is increased from 1 bar to 3 bar. The approximate specific boundary work of the system is a. Cannot be find since some data is missingb. 285 kJ/kgc. 0 kJ/kgd. 0.285 kJ/kg
Argon (molar mass 40 kg/kmol) compresses reversibly in an adiabatic system from 5 bar, 25 °C to a volume of 0.2 m If the initial volume occupied was 0.9 m calculate the final pressure in bar to 2 decimal places.. Assume nitrogen to be a perfect gas and take cv 0.3122kJ/kgK. Question 12 of 84 A Moving to another questlon will save this response.