Determine the rate of refrigeration

Assignment Help Civil Engineering
Reference no: EM131032975

Reconsider Prob. 11-56. Using EES (or other) software, study the effects of compressor and turbine isentropic efficiencies as they are varied from 70 to 100 percent on the rate of refrigeration, the net power input, and the COP. Plot the T-s diagram of the cycle for the isentropic case.

Prob. 11-56

Air enters the compressor of an ideal gas refrigeration cycle at 12°C and 50 kPa and the turbine at 47°C and 250 kPa. The mass flow rate of air through the cycle is 0.08 kg/s. Assuming variable specific heats for air, determine (a) the rate of refrigeration, (b) the net power input, and (c) the coefficient of performance.

Reference no: EM131032975

Questions Cloud

Discuss what school sports would be like : Discuss what school sports would be like if there was no more funding through the school? Would this lead to a more inclusionary or exclusionary model?
Find a 2 × 2 nonsingular matrix t representing a linear map : Find a 2 × 2 nonsingular matrix T representing a linear map t : R2 → R2 such that no matter what basis B you choose, the representation RepB,B(t) is not a diagonal matrix. How do you know?
Explore and analyse information security threats : Assessment Three - Cyber intelligence is the ability to define, explore and analyse information security threats. Advanced adversaries accomplish their goals using advanced tools
What is the equation of a line that is perpendicular : What is the equation of a line that is perpendicular to the line that goes through the points (0, -3) and (-3, 12)?  a) y = 15x  + 2
Determine the rate of refrigeration : Air enters the compressor of an ideal gas refrigeration cycle at 12°C and 50 kPa and the turbine at 47°C and 250 kPa. The mass flow rate of air through the cycle is 0.08 kg/s.
Which equation represents a line that is parallel : Which equation represents a line that is parallel to the line whose equation is y = -3x - 7?  a) y = 3x  + 4      b ) y = -3x + 7
Find an equation for the line that passes through : Find an equation for the line that passes through (-4, 8) and (3, -7). What is the slope? Where does the line intersect the x-axis and the y-axis?
Discusses the future health and longevity of the ecosystem : Include images of organisms, plants, animals and discuss how they coexist. Include at least one slide that discusses the future health and longevity of the ecosystem you selected.
Write an equation of the line t : Write an equation of the line that passes through the points (1, 1) and (7, 4).  a ) y = 2x - 10 b ) y = 2x - 1

Reviews

Write a Review

 

Civil Engineering Questions & Answers

  Calculate the velocity in the constriction and the flowrate

Water flows through a 75 mm constriction in a horizontal 150 mm pipe. If the pressure in the 150 mm section is 345 kPa and that in the constriction 207 kPa, calculate the velocity in the constriction and the flowrate.

  Find the shortest ladder

a wall 8 ft high is 3/3/8 ft. from a house. find the shortest ladder which will reach from the ground house when leaning to the wall.

  Find what is the flow in cfs if the pressure at 3 diameter

Oil (specific gravity 0.752) flows through a 6" horizontal pipe under a pressure of 60 psi. Assuming no losses, what is the flow in cfs if the pressure at a 3" diameter reduction is 20 psi

  Estimate the percentage of time headways that will be 10 sec

At a specified point on a highway, vehicles are known to arrive according to a Poisson process. Vehicles are counted in 20-s intervals, and vehicle counts are taken in 120 of these time intervals.

  What is the minimum detention time in hours to settle out

The settling velocity of alum floc in a sedimentation basin is approximately 0.0014 fps. Calculate the equivalent overflow rate in gpd/ft2. What is the minimum detention time in hours to settle out the alum floc in an ideal basin with a depth of 10 f..

  How much of a reduction in the automobile emission

How much of a reduction in the automobile emission rate would be required to achieve the maximum eight-hour average NAAQS for CO at steady state 9ppmv (10.3 mg/m3)?

  Calcuate tension t in each of the corner cables and tension

two uniform rectangular plates weighing 800 llb ar freely hinged about their commonn edge and suspended by central cable ad for symmetrical corner cables. calcuate tension T in each of the corner cables and the tension To in the center

  Compute azimuths of all lines for aclosed traverse

Compute azimuths of all lines for aclosed traverse ABCDEFGHA that has the following balanced angles tothe right, using Bearing AB = N56º18'42"W.

  Determine the magnitude of the acceleration at the instant

A motorcyclist travels around a curved path that has a radius of 200 . While traveling around the curved path, the motorcyclist increases speed by 1.25 . a) If the motorcyclist starts from rest, determine the time needed to reach an acceleration of 5..

  Find the conjugate depths of the jump formed in such

The discharge through a 6.0 ft wide rectangular channel is 200.0 ft^3/s. Find the conjugate depths of the jump formed in such a channel if 3.5 ft of energy head is lost through it.

  What is the change in length in the unloaded direction

A brass cube (E=100 GPa, v = 0.25(Poisson's ratio)) is 100 mm long per side. A compressive force of 100kN is applied to one side, while a tension force of 200 kN is applied to a second side.

  What was the discharge capacity andvelocity at full flow

a) What was the discharge capacity andvelocity at full flow at the time of installation b) If the pipe presently carries a flow of15 cfs when full, determine the present velocity and present value of n.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd