A water cooler based on the vapor-compression refrigeration cycle uses R-134a as theworking fluid. The water cooler operates in 80°F surroundings, and the water coolerwill used to cool a 0.50 GPM stream of liquid water from 60°F to 35°F. The compressorefficiency is 75%.a) Select evaporator and condenser pressures that will allow the refrigeration cycle tooperate in this environment, and find the coefficient of performance of therefrigeration cycle.b) Find the power input to the compressor, in horsepower.Use Cengel's R-134a tables posted on Canvas to model the refrigerant.ExpansionValveTOUT= 35°F3480°FSurroundingsQCONDENSER2CondenserEvaporatorEVAPORATOR0.50 GPM of WaterCompressorTIN = 60°FW COMPRESSOR

Given: Refrigerant is R-134a Mass of the liquid flowing, m1=0.50 GPM=0.0225 kg/s. The surrounding…

e vapor-compression refrigeration cycle uses R-134a as poler operates in 80°F surroundings, and the water coc M stream of liquid water from 60°F to 35°F. The comp ondenser pressures that will allow the refrigeration cy

e vapor-compression refrigeration cycle uses R-134a as poler operates in 80°F surroundings, and the water coc M stream of liquid water from 60°F to 35°F. The comp ondenser pressures that will allow the refrigeration cy

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

Chapter44: Geothermal Heat Pumps

Section: Chapter Questions

Problem 10RQ: A(n) ______well draws water from the top of thewater column, circulates it through the heat pump,...

See similar textbooks

Related questions

Q: A worker develops a tension T in the cable as he attempts to move the 46-kg cart up the 18° incline.…

Q: Consider the variation in performance under mild loads between slotted and pure ALOHA. Find the…

A: To find: The smallest variation in the performance under mild loads between slotted and pure ALOHA.

Q: The water needs of a small farm are to be met by pumping water from a well that can supply water…

Q: Boxes are transported by a conveyor belt with a velocity vo to a fixed incline at A where they slide…

A: In this problem, we will calculate the velocity of the conveyor belt when the velocity of the box is…

Q: PROBLEM 2 The cable at A is drawn by the motor such that the block B moves upwards with an…

A: According to the question a2=1m/s2 u=0 m/s t= 1 sec We need to find Acceleration of the A and…

Q: Explore the profile of a disc cam to give uniform velocity during outstroke of 25 mm to a knife edge…

A: Given: Diameter of the shaft→D=25 mm Length of the stroke→L=25 mm Axis of the follower are passing…

Q: A ¼ inch thick steel plate has to be punched with a 1/2 inch holes by applying a force of 40 tons.…

Q: Force F1 has a magnitude of 249. F2 has a magnitude of 871. Angle 8 = 30°. a. Determine the…

Q: 2-89. Determine the magnitude and coordinate direction angles of the resultant force acting at A.…

Q: 4/67 Determine the forces in members AD and DG. J d P F G L d d E D L d d B A 0.8 d L

A: Given: The forces at point G ,D and A are L in downward direction. And the distances of point G , D…

Q: determine forces in cable AB, AC,AD

A: Given F= 450 lb Required: forces in cable AB, AC,AD

Q: AS AN AUTOMOBILE ROUNDS A CURVE A FORCE F OF MAGNITUDE 60016 IS EXERTED ON ONE OF ITS TIRES,…

Q: A bowling ball is dropped from a boat so that it strikes the surface of the lake with a speed of…

A: Given the downward acceleration and initial speed. Required: Final speed on reaching the bottom of…

Q: Name the Crystallographic Direction and Show the Steps

A: Given

Q: For the subsonic axial-flow air expander specified, calculate the stagnation and static pressures…

Q: Find the natural torsional frequencies, the frequency Equation and Mode shapes of a uniform rod with…

Q: 1. Determin or false in R³. (a) Two lines parallel to a third line are parallel. (b) Two lines…

A: According to Bartleby guidelines we can answer only one question at a time. Please post other…

Q: 3.23 A 200 N force is applied as shown to the bracket ABC. Determine the moment of the force about…

Q: Consider an AISI 1045 ferrite and pearlite microstructure. The sample is initially heated to 845 deg…

A: In the tempering of steels, the primary goal is to reduce the brittleness that is often associated…

Q: . Determine the principal stresses at point A on the cross section of the wrench at section a-a.…

A: The value of force is P=70 lb

Q: A tank contains a two-phase liquid-vapor mixture of Refrigerant 22 at 10 bar. The mass of saturated…

A: Given data:_ A tank contains a two-phase liquid-vapor mixture of Refrigerant 22 at 10 bar The mass…

Q: Find reactions and plot shear force and bending moment diagrams

A: This question is based on the concept of shear force and bending moment diagram.

Q: Determine the moment of inertia of the given shapes

A: Given: The given figure contains two rectangle. Width of outer rectangle (b1)=325 The length of…

Q: Problem 1. The structure shown below supports a 100 N load. Note that the structure consists of…

Q: 8 kN/m 18.38 j 10 i 18.38 j -15.38 i-5 j 0i-15.38 j Correct Submit Previous Answers Part B 1.5 m-…

Q: 5 lb lb 2 lb 35⁰ B Resolve the 5 lb force, F, into a component along OA and a component along OB,…

A: Given data:- Force F= 5 lb where OA is inclined =35° from horizontal, OB descends 3 feet vertically…

Q: A composite beam, made of aluminum (Al) and magnesium (Mg), has the cross section shown below. The…

A: Given data Youngs modulus of aluminium=70GPa Youngs modulus of magnesium = 45GPa Allowable stress…

Q: Hello i dont undertsnad the steps, where do they get the 0.13333 from?? and the 0.7?? can you…

A: According to the question We need to explain steps which does not explain properly.

Q: The bar shown has a rectangular cross section. For a given load P, determine (1) the force…

Q: Consider (Figure 1). Figure 0.3 m. 120° 45° 60⁰° 325m Y Part A Determine the magnitude of the…

A: Given data: Force (F)=260 N To find:-the magnitude of the moment of the 260-N force about the x…

Q: The force F acts on the bracket within the octant shown. If the magnitudes of the x and z components…

A: According to the given data Fx = 300 N Fz = 600 N, β=60° We need to find Magnitude of the F y…

Q: Determine the force in each member of the truss. State whether the members are in tension or…

Q: Draw digitally a unique, original design of a decorative block. Please refer to the sample picture…

A: A decorative block can be any type of block or object that is used for ornamental or aesthetic…

Q: For the single degree of freedom system shown below in Figure Q6, and considering only the steady…

A: Given he force input, damping coefficient and forcing frequency. Required: Amplitude of…

Q: Give one example of an engine management system fault for each component Air-flow meters…

A: Air-flow meters: a) Intermittent faults: Signal loss, inconsistent readings. Diagnosis: Check…

Q: 12.84 The periodic time (see Prob. 12.83) of an earth satellite in a circular polar orbit is 120…

Q: A heat pump based on the vapor-compression refrigeration cycle uses R-134a as the working fluid. The…

A: Given that, working fluid of the heat pump cycle is R134a. Condenser pressure is 1.2 MPa and…

Q: Where do the highest energy losses .3 take place in power plants using gas and steam turbines?…

A: Power plants use gas or steam turbines to convert one form of energy into another and ultimately…

Q: Consider a device similar to that used by Joule to measure the net work between two states as…

A: The mass of the weight is m=4 kg. The height of fall of the mass is h=0.8 m.

Q: An 8 m simply supported beam has a uniform load of 2 kN/m from left end to right end and…

Q: Determine the largest weight of the lamp that can be supported. Express your answer to three…

A: Solution.jpg

Q: Historians and engineers believe that builders for the Forbidden Palace in China during the 15th and…

Q: 3.129 A long, circular aluminum rod is attached at one end to a heated wall and transfers heat by…

Q: Shortwave Radiation downwards= 250W/m2 Shortwave Radiation upwards= 50W/m2 Convective sensible heat…

A: Shortwave Radiation: Shortwave radiation refers to electromagnetic radiation with wavelengths in the…

Q: A machine of mass 203.5 kg is mounted on four parallel springs each of stiffness 1.6 x 105 N/m. When…

Q: The flat band that goes from pulley A to pulley B has a coefficient of static friction us=0.4, it…

Q: Sketch a section of a pipe with diameter D₁ with a Venturi meter of throat diameter D2. Indicate on…

A: let pipe diameter=D1throat diameter=D2water column level at pipe =h1water column level at throat=h2

Q: 2.) The mast (below) is secured with 4 cables each carrying a tension. All 4 cables are connected to…

A: Solution: The co-ordinates of different points are :…

Q: How much work is done by the force? Express your answer using two significant figures. View…

Q: 1. a) A mass is hung as shown in Fig. Q1(a). The tension in the cable AB is 500N. Solve with the aid…

Question

A water cooler based on the vapor-compression refrigeration cycle uses R-134a as the
working fluid. The water cooler operates in 80°F surroundings, and the water cooler
will used to cool a 0.50 GPM stream of liquid water from 60°F to 35°F. The compressor
efficiency is 75%.
a) Select evaporator and condenser pressures that will allow the refrigeration cycle to
operate in this environment, and find the coefficient of performance of the
refrigeration cycle.
b) Find the power input to the compressor, in horsepower.
Use Cengel's R-134a tables posted on Canvas to model the refrigerant.
Expansion
Valve
TOUT
= 35°F
3
4
80°F
Surroundings
QCONDENSER
2
Condenser
Evaporator
EVAPORATOR
0.50 GPM of Water
Compressor
TIN = 60°F
W COMPRESSOR

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 3

VIEW

Step by step

Solved in 3 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

Two methods used to power refrigeration compressors on a ship are _____and ____.
A typical temperature relationship between a high-efficiency condenser and the ambient temperature is A. 10F. B. 20F. C. 30F. D. 40F.
Why is two-stage compression popular for extra-low-temperature refrigeration systems?
The types of energy used to power a typical absorption refrigeration machine are____ and_____.
Four methods for controlling head pressure in an air-cooled condenser are ______, ______, _______, and
Define flash gas, and explain how it applies to the net refrigeration effect of the refrigeration cycle.
A(n) ______well draws water from the top of thewater column, circulates it through the heat pump, and then returns the water to the bottom of the water column.
Pevap=4 bar, Pcond=20 bar, Qevap=6 kW, p6= 8.9 bar Refrigerant ( ammonia (R717) ) leaves the condenser as saturated liquid and as saturated vapor from the evaporator. Compression process in the compressor is isentropic. A) Based on the simple vapor-compression refrigeration cycle below, determine the compressor power and COP. Condenser 3 Evaporator ### Plot the T-s and P-h diagrams for options A Licensed for single user. © 2009 ASHRAE, Inc. -200 40 200 400 600 800 1000 1200 1400 1600 R-717 1800 2000 2200 2400 40 (ammonia) 20 Reference state: h- 200.0 kg. 1.00 kJjko KI for saturated kquid at OC 350 300 150 P: 100 kgm 80 200 10 20 60 8 120 6 40 10 100 30 4 8 80 20 6. 15 2 4 10 8.0 1 6.0 0.8 0.6 T= 20°C 4.0 1 0.8 3.0 0.4 20 0.6 1.5 0.2 0.4 1.0 0.80 0.1 0.2 0.60 0.08 0.06 0.40 0.1 0.30 0.04 0.08 0.20 0.06 0.15 0.02 8.00 0.04 0.10 840 KJkg K) 0.080 0.02 0.01 -200 8.80 0.060 200 400 600 800 Properties computed with: NIST REFPROP 1000 1200 1400 1600 0.01 2400 1800 2000 version 7.0 2200…
A refrigerant 22 vapor compression system includes a liquid-to-suction heat exchanger in the system. The heat exchanger cools the saturated liquid from the condenser from 32OC to 21OC with vapor which comes from the evaporator at -10OC. The compressor is capable of pumping 20 L/sec of refrigerant. a) Calculate the COP and the refrigerating capacity of the system without the heatx Echanger, b) Calculate the COP and the refrigerating capacity of the system with the heat exchanger.
Refrigerant 134a is used in a cooling system operating according to the ideal cooling cycle with vapor compression for cooling the cold storage in the milk processing plant. The flow rate of the refrigerant is 0.10 kg/s. The condenser and evaporator pressures are 1000 kPa and 600 kPa, respectively. a) Calculate the cooling capacity as (kW). b) Calculate the volumetric flow rate of the refrigerant at the compressor inlet. c) Calculate the efficiency coefficient of the cooling system.
b. A refrigerating system using Freon-12 has an evaporator saturation temperature of - 25°C and a condenser saturation temperature of 35°C. The vapor is dry saturated at entry to the compressor and has a temperature of 65°C after compression to the condenser pressure. There is no undercooling of the liquid in the condenser. i. Calculate the input power required by the compressor per kW of refrigeration. ii. Calculate the COPRef of the refrigerating system. ii. Show the operating cycle of the refrigerating system on a T-s diagram.
1- Consider two vapor compression refrigeration cycles .The refrigerant enters the hrottling valve as a saturated liquid at.30°C in one cycle and as subcooled liquid at 30°C n the öther one. Tlhe evaporátor pressure for both cycles is the same .Which cycle do you jink will have a higher COP ?