Answered: irreversible adiabatic expansion…

Engineering

Mechanical Engineering

irreversible adiabatic expansion process efficiency is equal to ____________.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter39: Residential Energy Auditing

Section: Chapter Questions

Problem 4RQ: Performing a home energy audit starts with a visualinspection of a home and its energy systems which...

See similar textbooks

Related questions

Q: QUESTION 17 The inequality in the Clausius inequality holds for A. internally OB.irreversible…

A: Concept: Clausius Inequality: The cyclic integral of (dQ/T)<= 0 For dQ/T <0 , Process is…

Q: Saturated liquid water flows isothermally at 20 degrees Celsius through a one inlet, one-exit duct…

Q: 2. An ideal gas undergoes a process from state 1 ( T1= 300 K, P1= 100 kPa) to state 2 ( T2= 600 K,…

A: Given, T1 = 300 K P1 = 100 kPa T2 = 600 K P2 = 500 kPa Cp = 1 kJ/kg-K Cv = 0.7 kJ/kg-K Gas…

Q: 6Air enters a compressor operating at steady state at 14 lbf/in2, 60°F, with a volumetric flow rate…

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

A: Given data: Q1-2=5 JW1-2=10 JQ2-3=25 JW2-3=-20 JQ3-1=-40 J Need to determine the value of heat in…

Q: A piston-cylinder assembly conations H,0 (10C) undergoes a process at a constant pressure of 1.5 bar…

Q: Steam enters a turbine operating at steady state at 800°F and 450 Ibf/in? and leaves as a saturated…

Q: 8.20 A quantity of air initially at 1 bar, 300 K undergoes two types of interactions: (a) it is…

A: Given that, Pressure of air, P1=1 bar,Temperature of air, T1=300 K,

Q: Steam enters a turbine operating at steady state with a mass flow rate of 1.5 kg/s. The turbine…

A: Given:m=1.5 kg/sP=2.7 MWh1=3506.2 kJ/kgc1=30 m/sh2=1671.67 kJ/kgc2=130 m/s

Q: An insulated, rigid tank whose volume is 0.5 m³ is connected by a valve to a large vessel holding…

Q: 2.- A cylinder is divided into two halves by a conducting piston. The space to the left side of the…

Q: 2.10 An open and insulated feedwater heater operates at steady state with water entering at 7 bar,…

Q: 17 In an irreversible process there is a loss of heat. no loss of work MED a b gain of heat No gain…

A: (Q 1) It is required to state the condition that are applicable for irreversible process. (Q 2) It…

Q: What does the conservation of energy state?

A: The conservation of energy states that in an isolated system, the energy remains unchanged even with…

Q: Thermodynamic Keys Conservation of Mass Questions 71-75 are based on the stated information listed…

A: As per the guidelines I am able to answer first 3 subparts only. So please repost the remaining…

Q: m p1 = 1.4 bar, T1 = 5 °C to T2 = 180 °C. Process 2-3: Adiabatic expansion to v3 = 1.4v2 Process…

A: given: p1 = 1.4 bar, T1 = 5 °C T2 = 180 °C v3 = 1.4v2

Q: At steady state, a device receives a stream of saturated water vapor at 210°C and discharges a…

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

Q: A feed water heater operating in steady state has 2 inlets and 1 outlet. Liquid water enters. from…

A: Given:P1=7 barT1=42°Cm1=70 Kg/sP2=7 barx2=0.98P3=7 barsaturated liquid

Q: Air enters a compressor operating at steady state with a pressure of 14.7 Ibfin. and a temperature…

A: Given: The pressure of air at the inlet of the compressor, P1 = 14.7 lbf/in2 The temperature of air…

Q: Refrigerant 134a at p1 = 30 lbf/in2, T1 = 40oF enters a compressor operating at steady state with a…

Q: A mixing chamber operates at steady state with liquid water entering (inlet-1) at 8 bar, 40 °C, and…

A: a) m1˙=60 kg/s

Q: QI (a) Using a sketch as you think appropriate, describe a pure substance in themodynamics system…

Q: true or false Entropy is not a property

Q: At steady state, a device receives a stream of saturated water vapor at 210°C and discharges a…

A: To find: The maximum amount of energy in kJkg of steam that could be delivered at 300°C. Given: The…

Q: The equality in the Clausius inequality holds for ... OA internally OB. internally OC.totally…

Q: Steam at 80 bar, 440 °C, enters a turbine operating at steady state with a volumetric flow rate of…

A: Given data as per question Initial pressure = 80 bar Initial temperature = 4400c Volumetric flow…

Q: 4. A perfect gas, R = 315.4 ft-lb/lb-°R, cy = 0.514 Btu/lb-°R, undergoes an isentropic process such…

A: Given, R = 315.4 ft-lb/lb-oR = 0.4053 Btu/lb-oR cv = 0.514 Btu/lb-oR T1 = 56o R p1 = 23.6 psia V1 =…

Q: evaluate the irreversibility

A: Given; During expansion, heat transfer from air to the surrounding at 300 K Or,Air expands steadily…

Q: Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at…

A: The data given is, Volumetric flow rate at the inlet, v·1=0.18 m3/s The temperature at the inlet,…

Q: Steam enters a nozzle operating at steady state at 30 bar, 330.6 °C, with a velocity of 103 m/s. The…

Q: THERMODYNAMICS - Conservation of Mass UPLOAD AND EXPLAIN COMPLETE SOLUTION. Consider steam that…

A: Given information , At inlet, Diameter, velocity of steam, pressure and temperature, Find , Mass…

Q: Water vapor enters a turbine operating at steady state at 1000F, 250 lbf/in2, with a volumetric flow…

Q: In a turbine air expands from 5 bar, 520°C to 1 bar, 300°C. During expansion 10 kJ/kg of heat is…

A: Given-Data:- P1=5barP2=1barPo=0.98barT1=520°CT2=300°CTo=20°Ccp=1.005jJ/kgKh=cp To-Find:- 1) The…

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

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

A: Calculated net work in this cycle in joule.

Q: As shown in the figure, Refrigerant 22 enters the compressor of an air conditioning unit operating…

A: Given : P1= 80 lbf/in2 P2=P3=200 lbf/in2

Q: 2.5 liters of superheated steam at 25 bar and 400 C (V= 0.1252 m3/kg) is expanded in an engine to a…

Q: thermodynamic cycle with three steps: process 1-2 (from state 1 to state 2), process 2-3 (from state…

Q: 1.1 A certain fluid at 10 bar is contained in a cylinder behind a pis- ton, the initial volume being…

Q: Air modeled as an ideal gas enters a well-insulated diffuser operating at steady state at 307 K with…

A: Given:T1=307 Kc1=80 m/sc2=25 m/scp=1.006 KJ/Kg.K

Q: A steam enters a nozzle operating at steady state with a velocity of 10 m/s, P1 = 40 bar, and T1 =…

Q: Refrigerant 134a is compressed with no heat transfer in a piston–cylinder assembly from 30 lbf/in.2,…

A: Write the properties of the refringent at a given condition. Now write the thermodynamics first law…

Q: 13. 2 kg of air at 5 bar, 80°C expands adiabatically in a closed system until its volume is doubled…

Q: What is the effect of overdamped state?

A: Overdamped: When the damping factor is greater than unity than it's called overdamped. An overdamped…

Q: 2- First law steady state: A simple vapor power plant operating at steady state with water…

A: Given Data The pressure at point 1 is P1=100 bar. The temperature at point 1 is T1=520°C. The…

Q: Question 3 Refrigerant 134a enters an air conditioner compressor at 4 bar, 25 °C, and is compressed…

Q: Steam expands adiabatically through a turbine at steady state. The entering stream is at 750…

Q: Steam expands adiabatically through a turbine at steady state. The entering stream is at 1000…

Q: 8. Steam enters a turbine operating at steady state with a mass flow rate of 3000 kg/h. The turbine…

A: Given:mass flow rate of steam, m˙=3000 kg/hPower output, P=700 kWinlet pressure, P1=40 barinlet…

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

100%

he irreversible adiabatic expansion process efficiency is equal to ____________.

A. actual work x ideal work

B. actual work + ideal work

C. ideal work / actual work

D. actual work / ideal work

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 1 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

Exergy of a Flow Stream: Flow (or Stream) Exergy.
For the given question determine optimum velocity of steam, asap
Rate of exergy destroy
Describe the Exergy Destruction During Expansion of Steam.
1. In a turbine, steam enters with an enthalpy of 1275 Btu/lbm and leaves with an enthalpy of 1115 Btu/lbm. The transferred heat is 13 Btu/lbm. Find the turbine work in hp where the steam flow rate is 5 lbm/sec? 2. During a steady flow process, the pressure of the working substance drops from 200 to 20 psig, the speed increases from 100 to 800 fps, The internal energy of the open system increases by 15 Btu/lbm, and the specific volume increases from 1 to 10 ft3/lb. The heat lost of the open system is equivalent to 1 kW. Determine the work in hp for a mass flow rate of 12 lbm per min.
TRUE or FALSE. No need explanation 1. The COP of a Carnot Cycle Heat Pumup is always >12. Subcooled liquid properties can be approximated by determinging the saturated liquid property at the given pressure.3. all steps of the Rankine cycle are isentropic4. For an isochoric state change, the moving boundary work is zero.
multiple choice question A system executes a power cycle while receiving 1000 Btu by heat transfer at a temperature of 900°R and discharging 700 Btu by heat transfer at a temperature of 540°R If σ cycle has a negative value, the cycle is: a. impossible b. irreversible c. internally reversible
Need Help going through the process on how to solve this problem. May accidentally be asking this a second time, because the first time I asked it, it didn't show as a pending problem. Steam expands adiabatically through a turbine at steady state. The entering stream is at 750 lbf/in^2, 750°F, and the exiting stream is a saturated vapor at 10 lbf/in^2. Kinetic and potential energy effects are negligible. a. How much work per lb of flow does the turbine produce, in Btu/lbm? b. If the turbine produces 3000 kW of output power, determine the mass flow rate of steam in kg/s. c. If this process were isentropic, the existing stream would no longer be a saturated vapor. Determine the final quality of steam in that case. d. Determine the isentropic turbine efficiency.
What is the effect of overdamped state?
an ammonia refrigeration cycle operates at 616 kpa suction pressure and 1737 kpa condenser pressure, compressor clearance of 5%, refrigeration capacity of 120 kw, compressor efficiency of 80%, mechanical efficiency of 75% and actual volumetric efficiency of 70. determine (a) actual work (b) ideal cop (c) mass flow rate of ammonia (d) indicated work (e) brake work (f) volumeteric
What does the conservation of energy state?
Thermodynamics A Rankine Engine-Generator unit receives 27,000 kg/hr of steam at 12 bar and 305 C and exhausts to a condenser temperature of 22 C. Brake steam rate is 4.74 kg/kW-hr, mechanical efficiency is 90 % and generator efficiency is 94 %. Determine: a) ideal engine thermal efficiency, b) indicated engine efficiency, c) generator output (kW), d) quality of actual exhaust.