Thermodynamics 2. Refrigerant-134a at 400 kPa and 10°C is compressed by anadiabatic 10 kW compressor to an exit state of 900 kPa and 50°C.Neglecting the changes in kinetic and potential energies andassuming the surroundings to be at 20°C. Determine;a. The isentropic efficiency,b. The second-law efficiency of the compressor,c. The rate of exergy destroyed during this process, in kW,d. The inlet and exit exergy of R134-a, in kW.P= 900 kPaT2- 50°CR-14a10kwP = 400 kPaT.- 10 °C

Answered: Image /qna-images/answer/b3f8e74b-5c25-4d46-aebe-aa9f5989d2eb.jpg

Dêtérmine; assuming the surroundings to be at a. The isentropic efficiency, b. The second-law efficiency of the compressor, c. The rate of exergy destroyed during this process, in kW, d. The inlet and exit exergy of R134-a, in kW.

Dêtérmine; assuming the surroundings to be at a. The isentropic efficiency, b. The second-law efficiency of the compressor, c. The rate of exergy destroyed during this process, in kW, d. The inlet and exit exergy of R134-a, in kW.

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: Elaborate the importance of first and second laws of thermodynamics from Islamic perspective

A: The principles of thermodynamics specify a set of physical characteristics, such as temperature,…

Q: Refrigerator 1 operates as a reverse Carnot cycle using R-717 as refrigerant at a flow rate of 1.8…

Q: 1. A 6-cylinder, 4-stroke marine diesel engine generally operates at 3000 revolutions per minute…

A: Given dataN=3000 rpmT=299KN=6API=28v˙=600 liter/hr=6001000m3/hr

Q: As shown in the figure below, two reversible cycles arranged in series each produce the same net…

Q: State the first law of thermodynamics briefly

Q: DEFINE SOME STEADY-FLOW ENGINEERING DEVICES

A: Steady-flow engineering devices are given below: Nozzle: The nozzle is a device which is to enhance…

Q: A closed system undergoes a thermodynamic cycle with 2 steps: process 1-2 (from state 1 to state 2),…

Q: A heat pump maintains a dwelling at 68°F. When operating steadily, the power input receives energy…

A: Given-Information:-' High Temperature, Th = 68°F = 68 +460 R = 528 R Colder Temperature, Tc = 55°F…

Q: A 35 lb object is subjected to an applied upward force of 20 lbf. The only other force acting on the…

A: Given data: mass = 35 lb g = 32.2 ft/s2 Need to determine the weight of the object.

Q: A gas contained within a piston-cylinder assembly undergoes three processes in series: Process 1-2:…

A: The given information in the problem is shown in the following attached image:

Q: Mention the scientific term for "the ratio of density of a given solid or liquid substance to the…

A: This question is based on the concept of fluid mechanics.

Q: different rpoperties of thermodynamics

A: there are two types of properties of thermodynamics- 1-intensive properties 2-extensive properties

Q: A gas inside a piston-cylinder assembly expands from P, = 6.5 bar, V, = 0.012 m³ to P2 = 3.3 bar in…

Q: The power law index of Newtonian fluids equal to

A: Basically the power law model is used to describe those materials which follows the power law.

Q: An oil pump operating at steady state delivers oil at a rate of 10 lb/s through a 1-in.-diameter…

Q: Water flows through a Venturi meter, as shown in the figure. The pressures of the water at locations…

Q: match the correct descriptions to the corresponding Thermodynamic laws:

A: The first law of Thermodynamics is A. During an interaction, energy can change from one form to…

Q: Discuss the First and Second Lad of Thermodynamics, provide an example.

A: First law of thermodynamics is a version of law of conservation of energy. It states thats the sum…

Q: A composite plane wall consists of a 4-in.-thick layer of insulation (ks = 0.029 Btu/h ft °R) and a…

Q: The figure below and the accompanying table provide the schematic and steady-state operating data…

Q: Three-tenths kilogram of a gas is contained within a piston-cylinder assembly. The gas undergoes a…

Q: Where can I apply solving matrices in thermodynamics?

A: Apply of matrices in thermodynamics

Q: A reversible refrigeration cycle operates between cold and hot reservoirs at temperatures Tc and TH,…

A: Given that: The cycle is a reversible refrigeration cycle. It is required to determine: (a) TH if…

Q: Air expands through a turbine operating at steady state. At the inlet, p₁ = 150 lbf/in.2, T₁ =…

Q: 1. The condition of a system as described by its properties ........ a. System b. Process C.…

A: It is required to determine: 1. Condition of a system that can be described by its properties. 2.…

Q: Air expands through a turbine operating at steady At = 900°R. The mass flow rate of air entering the…

Q: Steam in a piston-cylinder assembly undergoes a polytropic process, with n = 2, from an initial…

Q: The flow of work possessed by air at 20°C

Q: Show Attempt History Current Attempt in Progress X Your answer is incorrect. Air expands through a…

Q: Based on thermodynamics of a process, explain intermediary energy. Mention the three characteristic…

A: Intermediary energy can also be said internal energy. In thermodynamics, when a system goes in any…

Q: Hot combustion gases, modeled as air behaving as an ideal gas, enter a turbine at 145 lbf/in.2,…

Q: The bottom of a 50mm diameter, 2mm thick metallic induction heater is 120C while its thermal…

Q: A gas undergoes a process in a piston-cylinder assembly during which the pressure-specific volume…

A: Introduction: For the calculation of change in internal energy, the first law of thermodynamics is…

Q: At steady state, a new power cycle is claimed by its inventor to develop net power at a rate of (a)…

Q: Derive the seven general property equation of the following thermodynamics processes: a.…

Q: A composite plane wall consists of a 4-in.-thick layer of insulation (ks = 0.029 Btu/h ft. °R) and a…

Q: What is the thermodynamic system? Explain in detail taking two examples.

A: A Thermodynamic system is defined as a finite quantity of matter or prescribed region of space.

Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

Thermodynamics

2. Refrigerant-134a at 400 kPa and 10°C is compressed by an
adiabatic 10 kW compressor to an exit state of 900 kPa and 50°C.
Neglecting the changes in kinetic and potential energies and
assuming the surroundings to be at 20°C. Determine;
a. The isentropic efficiency,
b. The second-law efficiency of the compressor,
c. The rate of exergy destroyed during this process, in kW,
d. The inlet and exit exergy of R134-a, in kW.
P= 900 kPa
T2- 50°C
R-14a
10kw
P = 400 kPa
T.- 10 °C

Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step by step

Solved in 6 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

5.7. For the "standard atmosphere" shown in Fig. 5.5, perform the following calculations= (a) Derive the pressure-height relation for the troposphere. (b) Calculate the pressure at the troposphere-stratosphere boundary. (c) Derive the pressure-height relation for the stratosphere.
Water contained in a piston-cylinder assembly undergoes two processes in series (point 1 to point 2 and point 2 to point 3): point 1: T1 = 100°C and P1 = 5bar point 2: 71= 151.9°C and P2 = 5bar and v2 = 0.300 .300 m³ point 3: 73= 200°C and v3 = .300" kg Use the thermodynamic tables A.2, A.3, and A.4 to answer the following questions: For questions 1, 3, and 5 choose from: subcooled water, saturated water, saturated liquid, saturated vapor, superheated vapor 1) What is the thermodynamic state of water at point 1: 2- What is the specific volume of water at point 1: 3) What is the thermodynamic state of water at point 2: 4) What is the quality of water (x) at point 2: 3) What is the thermodynamic state of water at point 3: 4) What is the pressure of water at point 3: (bar) On paper draw points 1, 2, and 3 on the following P-v and T-v diagrams and show the two processes. Add number values, units, and constant pressure or temperature lines if needed. Specify which table you used to find…
1. thermodynamics
Please answer these 2 questions
the differences, at least ten, between thermal and hydroelectric power plants. Explain the "mode of energy transfer" between the two power producing systems following thermodynamics and fluid mechanics.
Each of the following statements describes a way of coping with temperature variation. Which scenario most likely includes positive heat transfer through convection? That is, in which scenario does Hconvection most likely have a positive (+) sign? Hanimal = +SR + IRin – IRout +/- Hconvection +/- Hconduction - Hevaporation + Hmetabolic Select one: a. A rabbit basking in the sun early in the morning. b. A lizard resting in the shade in a hot desert in the middle of the day. c. A bumblebee vibrating its flight muscles before flight. d. A ground squirrel hibernating in the winter. e. A bird fluffing its feathers on a cold day.
1. In system, no mass can cross its boundary. However, it only allows energy transfer across its boundary o Control system o Closed system o Isolated system 2. Heat transferred to a system and work done by a system are always positive. o True o False 3. —— is a device that decreases the velocity of a fluid by increasing its pressure. o Nozzle o Diffuser o Compressor o Turbine 4. A heat engine may not reject any heat to a low-temperature reservoir and still can complete a cycle. o True o False 5. Heat is removed from the compartment of a refrigerator at a rate of 250 kJ/min. The refrigerator consumes 0.8 kW, determine the COP of the refrigerator. 6. It has been proved experimentally by joule that the internal energy is a function of o Temperature only o Pressure only o Volume only o All together 7. The combination of flow energy and internal energy gives - 8. A process during which there is no heat transfer o Adiabatic o Isentropic o Polytropic o Isothermal 9. Heat is transferred to a…
state kelvin statement of the second law of thermodynamics Please explain clearly
Describe the operation of thermodynamic systems and their properties
QUESTION 51 The following processes occurs in a reversible thermodynamic cycle: 1-2: Reversible polytropic compression at pressure 0.6 bar at volume 0.09 m to a pressure 11.1 bar and specific volume 0.3 m/kg. The index of compression may be taken as n. 2-3: Reversibly expansion with expansion index of 2 to pressure 1.6 bar. 3-1: Reversible cooling at constant volume to the initial state. Calculate the work for the compression in the process to 2 decimal places. Not in kilo or mega.
State the difference between extensive, intensive and specific properties of a thermodynamic system.
For a closed system undergoing a thermodynamic cycle, what statement from the list below is correct when comparing the system's initial and final states? Temperature may change. O Pressure may change Volume may change Mass may change Internal energy may change Potential energy may change No system property may change