Thermodynamics, please help and show all work please. Refrigerant 134a is compressed from 4 bar, saturated vapor, to 10 bar, 90°C in a compressor operating at steady state. The mass flowrate of refrigerant entering the compressor is 7 kg/min, and the power input is 10.85 kW. Kinetic and potential energy effects can beneglected.(a) Determine the rate of heat transfer for the compressor, in kW. Note that heat transfer is positive going into the compressor.(b) If the heat transfer occurs at an average surface temperature of 50°C, determine the rate of entropy production, in kW/K.(c) Determine the rate of entropy production, in kW/K, for an enlarged control volume that includes the compressor and its immediatesurroundings such that the heat transfer occurs at 300 K.Part ADetermine the rate of heat transfer for the compressor, in kW.Qev=ikWACF12F2#380F3$900F4%F5MacBook Pro*A6F6&7F7*8DIIF89F9)F10F11

R-134aP1=4 barP2=10 barT2=90°Cm˙=7kg/minPin=10.85kW˙ To-Find:- Qcv˙=?

Answered: s, please help

Engineering

Mechanical Engineering

s, please help

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 thin-walled cylindrical pressure vessel of radius r is subjected simultaneously to internal gas…

A: Answer: (a) The magnitude of the force F is 1131 kN. (b) The required thickness of the vessel is…

Q: Water at p₁ = 20 bar, T₁ = 400°C enters a turbine operating at steady state and exits at p2 = 1.5…

Q: Solve for the Following: Shear force equation of section CD. a. -24KN b. 24KN c. -28KN d. 28KN…

Q: 24. Reaction at support A 5 kN 2m 1m O A7KN OB.7.5KN O C.8 KN O 0.9 KN 25. Load on member FA O A.…

A: As per our guidelines, we are suppose to answer first three questions. 24. Let the reaction on A be…

Q: Replace the two forces in Figure (2) with a single force at the point (A) and double tension (B)…

Q: Class A cantilever beam AB of circular cross section and length L=450 mm supports a load P-400 N…

Q: how hydropower turbine is useful and efficient to the environment.

A: Advantages (Environmental benefits) of the hydro power plants are - 1. They are renewable sources…

Q: A cycle for a piston-cylinder device is described by the following four processes: 1-2 Isothermal…

A: Given data as per the question T1=300 kP1= 100 kpaP2= 600 kpaT3=800 kv4=v1process 1−2 isothermal…

Q: Francis

A: Runner speed u1=πDN60=π*1.4*43060=31.52m/s P=m˙Vw1u1±Vw2u2 For Francis turbine Vw2=0…

Q: Water vapor at 10 MPa, 600°C enters a turbine operating at steady state with a volumetric flow rate…

A: Given:P1=10 MPaT1=600°CV=0.36 m3/sP2=0.1 barx=0.92

Q: 24. Reaction at support A

A: we have to determine the reaction at A

Q: A particle has a diameter of 0.20 millimeters (Spec.grav = 2.5) falling in a liquid (Spec.grav =…

Q: In an experimental procedure to determine stress, the radial displacement u at a known radius, is…

Q: Q1: Replace the two forces in Figure (1) with a single force at point A and a pair whose forces act…

Q: A four-cylinder internal combustion engine has a mechanical efficiency of the engine is 0.68. If…

Q: 1. Which statement is not true for natural gas? a) Composed of 70 to 90% methane b) Can be found…

A: Option d is not true for natural gas. Natural gas causes pollution but lesser in comparison to other…

Q: The centrifugal pump speed is changed when the impeller size is constant. The initial flow is 200…

Q: OM A customer has recently tightened the specs for a part your company supplies. The specs are now…

A: Explanation: 1.Firstly identify the clause in revised specification which is very critical. 2.So if…

Q: Using the conjugate beam method, determine the slope and displacement of the pin B connected to the…

Q: Q22 111 Poor power factor results in: a) Higher energy losses b) Higher load current c) Both a & b…

A: Option ( C ) is correct Both a & b

Q: Q1) A stat of stress is specified in Figure. By using Mohr's circle determine the normal and…

A: we have to determine the stresses on the principal plane

Q: A thermopane window consists of two pieces of glass The window separates room air at 20°C from…

Q: A flanged bolt coupling consists of nine ½ -in diameter bolts equally spaced around a bolt circle 15…

A: The torque capacity of the coupling is 5.522 kip•ft.

Q: V₁ X = 31 Figure Q3 The figure Q3 shows a 180° elbow. Oil enters this elbow at a speed of X m/s and…

A: Given: entering speed of the oil: →V1=31 m/s Inlet area→A1=25 m2 Exit area→A2=10 m2 From the…

Q: 26. Load on member FE OA. 9.05 KN (C) OB. 9.50 KN (T) O C. 10.2 kN (T) OD. 11.3 kN (C)

Q: 2. Mercury is poured into the tube in the figure until the mercury occupies 375 mm of the tube's…

A: GivenH=L=375mm

Q: Determine the velocity and acceleration of a body after 3 secs, if the motion is defined by the…

Q: Q2: The horizontal force NK 5 at the end D is acting on the structure in Figure (2). Find the effect…

Q: below- ning Parameters Speed te Cut Symbol Vc f d Unit m/min mm/rev mm -1 200 0.1 1 Leve 0 250 0.13…

A: Number of process parameters =3 Number of level for each process parameters= 3 The design matrix for…

Q: The Airy stress function for a cantilever beam loaded by a force applied at the opposite side to the…

Q: 30. A work sampling study requires 98% confidence level with 14% accuracy. How many observation are…

A: Given Accuracy, S = 14% Down time, P = 8% x = 2 for 95% confidence level Find…

Q: 11 A rectangular bar section of aluminium alloy has outside dimensions 100 mm x 50 mm, as shown in…

A: As illustrated in the image, a rectangular bar section of aluminium alloy has outer dimensions of…

Q: 31. A work study sample of a manufacturing activity conducted over a 43.75-hour period shows that a…

A: Given data: Total time=43.75 hrs%working=90%Rating=85%Number of units produced=15 Need to determine…

Q: Q3: Calculate the applied force to move the process Envierment w 100 lb -0.2 Process W 100 lb μ0.2…

Q: Act on the structure in the figure The horizontal force is 2KN at the end D Find the reaction in the…

Q: 4) Find the value of the force F that makes the horizontal component of the resultant The three…

Q: Q/Draw a relation for the standard error in the surface area of the cylinder shown in Fig.,assuming…

A: Given question: Draw a relation for the standard error in the surface area of the cylinder.

Q: The liquidus and solidus temperatur The composition of last liquid to sol

Q: HW10 In an engine governor of the Porter type, the upper and lower arms are 230 mm and 330 mm…

A: Given: Length of upper arm: →Lu=230 mm=0.23 m Inclination of the upper arm to the vertical:…

Q: Shown in the figure below is a pipe system (commecial steel pipes) having a given centerline…

A: Given that, Volume flow rate, V˙=1.7 m3/min,˙ Calculate the Reynolds number, Re=ρVDμ Applying…

Q: Q.4/A 2-mm-diameter and 10-m-long electric wire is tightly wrapped with a 1-mm-thick plastic cover…

Q: Which of the following statement is TRUE? Large-scale turbulentmotion is roughly dependent of…

A: Statement A is true because reynolds number is given as: →Re=inertia forceViscous force Hence…

Q: 4. If 6.5 m³ of oil weighs 46,800 N, calculate its density in kg/m³. (a) 285 (b) 258 (c) 82 (d) 734

A: Given:V=6.5 m3W=46,800 N

Q: two forces in the figure below with a single force at point A and a pair whose forces act on the two

A: Force system can be replaced at point a as below

Q: Which of the following statement is FALSE? (A) For an ideal gas, temperature decreases with increase…

A: Correct answer: (B)

Q: Q1: Replace the two forces in Figure (1) with a single force at point A and a double acting on B has…

Q: B/Solve the following linear programming problem using the graphical method. Max (Z)-5X₁+7X₂…

Q: Air entering at 70°F and atmospheric pressure is to be compressed to 4000 lb/in² gauge in a…

Q: Which of the following are true for the limitations and impracticalities of the compressor of the…

A: Given questions are related to thermodynamics and heat engines.

Q: Act on the structure in the figure The horizontal force is 2KN at the end D Find the reaction in the…

Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

Thermodynamics, please help and show all work please.

Refrigerant 134a is compressed from 4 bar, saturated vapor, to 10 bar, 90°C in a compressor operating at steady state. The mass flow
rate of refrigerant entering the compressor is 7 kg/min, and the power input is 10.85 kW. Kinetic and potential energy effects can be
neglected.
(a) Determine the rate of heat transfer for the compressor, in kW. Note that heat transfer is positive going into the compressor.
(b) If the heat transfer occurs at an average surface temperature of 50°C, determine the rate of entropy production, in kW/K.
(c) Determine the rate of entropy production, in kW/K, for an enlarged control volume that includes the compressor and its immediate
surroundings such that the heat transfer occurs at 300 K.
Part A
Determine the rate of heat transfer for the compressor, in kW.
Qev
=
i
kW
A
C
F1
2
F2
#3
80
F3
$
900
F4
%
F5
MacBook Pro
*
A
6
F6
&
7
F7
*
8
DII
F8
9
F9
)
F10
F11

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 Given-Data:-

Step 2

Step 3

Step 4

Step 5

Step 6 Final-Answer:-

VIEW

Step by step

Solved in 6 steps

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

Water vapor at 10 MPa, 600°C enters a turbine operating at a steady state with a volumetric flow rate of 0.36 m3/sand exits at 0.1 bar and a quality of 92%. Stray heat transfer and kinetic and potential energy effects are negligible. Determine for the turbine (a) the mass flow rate, in kg/s, (b) the power developed by the turbine, in MW, (c) the rate at which entropy is produced, in kW/K, and (d) the isentropic turbine efficiency. Show this expansion process on a T-s diagram.
Water vapor enters a turbine operating at steady state at 400°C, 40 bar, with a velocity of 200 m/s, and expands adiabatically to the exit, where it is saturated vapor at 0.8 bar, with a velocity of 150 m/s and a volumetric flow rate of 25 m3/s. Determine the power developed by the turbine, in kW.
Water at p1 = 20 bar, T1 = 400oC enters a turbine operating at steady state and exits at p2 = 1.5 bar, T2 = 200oC. The water mass flow rate is 4000 kg/hour. Stray heat transfer and kinetic and potential energy effects are negligible.Determine the power produced by the turbine, in kW, and the rate of entropy production in the turbine, in kW/K.
Water at p1 = 20 bar, T1 = 400oC enters a turbine operating at steady state and exits at p2 = 1.5 bar, T2 = 180oC. The water mass flow rate is 4000 kg/hour. Stray heat transfer and kinetic and potential energy effects are negligible. Determine the power produced by the turbine, in kW, and the rate of entropy production in the turbine, in kW/K.
Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80 deg F with a velocity of 800 ft/s. The inlet area is 1.4 in^2. At the exit, the pressure is 400 lbf/in2 and the velocity is negligible. The diffuser operates at steady state and potential energy effects can be neglected. Determine the mass flow rate, in lb/s, and the exit temperature, in deg F.
Refrigerant 134a enters an air conditioner compressor at 4 bar, 20°C, and is compressed at steady state to 12 bar, 80°C. The volumetric flow rate of the refrigerant entering is 7 m3/min. The work input to the compressor is 105 kJ per kg of refrigerant flowing.Neglecting kinetic and potential energy effects, determine the magnitude of the heat transfer rate from the compressor, in kW.
Refrigerant 134a at 15 oC, 1.8 bar, and a mass flow rate of 5 kg/min enters an insulated compressor operating at steady state and exits at 5 bar. The isentropic compressor efficiency is 77%. Neglect the changes in kinetic and potential energies and assume the surroundings to be at 25 °C.Determine:S 1.1 the temperature of the refrigerant exiting the compressor, 1.2 the power input to the compressor, in kW, and 1.3 the rate of exergy destruction, in kW.
Water vapor enters a turbine operating at steady state at 1000F, 250 lbf/in2, with a volumetric flow rate of 25 ft3/s, and expands reversibly and adiabatically to 2 lbf/in2. Ignore kinetic and potential energy effects. Determine the mass flow rate, in lb/s, and the power developed by the turbine, in hp. Determine the mass flow rate, in lb/s, and the power developed by the turbine, in hp.
Water at 10 bar, 240°C enters a turbine operating at steady state and exits at 4 bar. Stray heat transfer and kinetic and potential energy effects are negligible. A hard-to-read data sheet indicates that the quality at the turbine exit is 49%. Determine the entropy production in Joules/kg. K.
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -12oC with a volumetric flow rate of 0.18 m3/s. Refrigerant exits at 8 bar, 70oC. Changes in kinetic and potential energy from inlet to exit can be ignored.Determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kW. The volume metric flow rate of .05262 m^3/s is correct. My power input is incorrect. See attached
Water vapor enters a turbine operating at steady state at 1000oF, 150 lbf/in2, with a volumetric flow rate of 25 ft3/s, and expands reversibly and adiabatically to 2 lbf/in2. Ignore kinetic and potential energy effects. Determine the mass flow rate, in lb/s, and the power developed by the turbine, in hp.
THERMODYNAMICS - Conservation of Mass UPLOAD AND EXPLAIN COMPLETE SOLUTION. Consider steam that enters a turbine at 70 bar, 530oC with a velocity of 64 m/s. The turbine is operating at steady state conditions and the steam leaves the turbine as a dry saturated vapor at 10 bar. The inlet diameter of the turbine is 0.45 m and the outlet diameter is 3.6 m. Determine the mass flow rate of steam through the turbine.