The figure shows a two-stage, vapor-compression refrigeration system with two evaporators and a direct contact heat exchanger. Saturated vapor ammonia from evaporator 1 enters compressor 1 at 12 Ibf/in? and exits the compressor at 66 lbf/in?. Evaporator 2 operates at 66 Ibf/in?, with saturated vapor exiting at state 8. The condenser pressure is 200 lbf/in?, and saturated liquid refrigerant exits the condenser. Each compressor stage has an isentropic efficiency of 80%. The refrigeration capacity of each evaporator is shown on the figure. Čout Condenser Compressor 2 Expansion valve - 6 Direct Evaporator contact heat exchanger Qin2 = 10 tons Expansion valve Compressor 1 - 7 Evaporator Om1 =5 tons

The figure shows a two-stage, vapor-compression refrigeration system with two evaporators and a direct contact heat exchanger. Saturated vapor ammonia from evaporator 1 enters compressor 1 at 12 Ibf/in? and exits the compressor at 66 lbf/in?. Evaporator 2 operates at 66 Ibf/in?, with saturated vapor exiting at state 8. The condenser pressure is 200 lbf/in?, and saturated liquid refrigerant exits the condenser. Each compressor stage has an isentropic efficiency of 80%. The refrigeration capacity of each evaporator is shown on the figure. Čout Condenser Compressor 2 Expansion valve - 6 Direct Evaporator contact heat exchanger Qin2 = 10 tons Expansion valve Compressor 1 - 7 Evaporator Om1 =5 tons

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

Chapter36: Refrigeration Applied To Air-conditioning

Section: Chapter Questions

Problem 8RQ: The most popular refrigerant used in the past for residential air-conditioning is R- ________.

See similar textbooks

Related questions

Q: solve and show every step with right answer

A: Data given - Rectangular cross section 225×75 mm2 Torsional moment = 20kN Axial Compressive force =…

Q: . VELOCITY ANALYSIS. For the single-degree-of-freedom mechanism shown below, the angular velocity on…

Q: solve by showing every step.

A: Given data: The ultimate tensile strength of component is Sut = 30 ksi. The ultimate compression…

Q: 3.3 Please help. Written on paper not typed on computer or keyboard please. Need help both…

A: Question 1) Question 2)

Q: Find the value of the determinant D given by: a b 3 D = c d -4 69 9 where a = 2, b = 4, c = 9, d =…

A: According to the given dataa=2b=4c=9d=13We need to findThe determinant of the matrix

Q: What is the radix component for the integer -35

A: This is a really useful lesson that starts with a standard programming language environment for…

Q: determine Vp, f, and Ø, and insert

Q: An engineer is creating a solid model of a simple gear using SolidWorks. Choose the correct…

Q: 2.3 Please help. Written on paper not typed on computer or keyboard please. Need help both…

A: ## Determining the Net Torque on the Wheel (Considering the Image)The image shows a wheel with…

Q: The vertical distance above a reference datum to a point is called the point’s

A: ▪︎We have to specify the term related to the vertical distance above the reference datum to a point.…

Q: 4. A water bug is suspended on the surface of a pond by surface tension (water does not wet the…

A: Introduction: Surface tension: Surface tension refers to the propensity of liquid surfaces to…

Q: 5. Please give the definition and syntax for G00 and G28, and draw the toolpath and mark the passing…

Q: Momentum methods are most suited for solving kinetic problems that involve (b) force, velocity, &…

A: first of all finding relation between kinetic energy and momentumwe know thatK.E=12mv2and momentum…

Q: At a point in a complex stress field ox = 40MPa, y = oy 80MPa and Txy = -20MPa. Use Mohr's circle…

Question

100%

Correct and complete solution please don't copy Please solve for T2 as well

The figure shows a two-stage, vapor-compression refrigeration system with two evaporators and a direct contact heat exchanger.
Saturated vapor ammonia from evaporator 1 enters compressor 1 at 12 Ibf/in? and exits the compressor at 66 lbf/in?. Evaporator 2
operates at 66 Ibf/in?, with saturated vapor exiting at state 8. The condenser pressure is 200 lbf/in², and saturated liquid refrigerant
exits the condenser. Each compressor stage has an isentropic efficiency of 80%. The refrigeration capacity of each evaporator is shown
on the figure.
Qout
Condenser
Compressor
Expansion
valve
Direct
8
Evaporator
2
contact
heat
exchanger
Qin 2 = 10 tons
'Expansion
valve
Compressor
1
Evaporator
Qin,1 = 5 tons

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 7

Step by step

Solved in 7 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

Condensers in these refrigerators are all_______cooled.
Why is two-stage compression popular for extra-low-temperature refrigeration systems?
The figure shows a two-stage, vapor-compression refrigeration system with two evaporators and a direct contact heat exchanger. Saturated vapor ammonia from evaporator 1 enters compressor 1 at 12 lbf/in2 and exits the compressor at 62 lbf/in2. Evaporator 2 operates at 62 lbf/in2, with saturated vapor exiting at state 8. The condenser pressure is 200 lbf/in2, and saturated liquid refrigerant exits the condenser. Each compressor stage has an isentropic efficiency of 80%. The refrigeration capacity of each evaporator is shown on the figure. Determine the temperature, in °F, of the refrigerant in evaporator 2.
Thermodynamics 1 Pls help me answer this one
Please answer this with a complete solution. thank u so much!
Refrigeration system Reminder: Present step by step solution. If EB in to be used, start in System Under Study, then, Fluid Under Study, and draw BED.
give answer all questions with explanation.
What is the mass flow rate of refrigerant in kg/s to 4 decimal places?
5. A refrigerator with tetrafluoroethane as refrigerant operates with an evaporation temperature of 247.15 K (-26°C) and a condensation temperature of 300.15 K (27°C). Saturated liquid refrigerant from the condenser flows through an expansion valve into the evaporator, from which it emerges as saturated vapor. (a) For a cooling rate of 5.275 kW, what is the circulation rate of the refrigerant? (b) By how much would the circulation rate be reduced if the throttle valve were replaced by a turbine in which the refrigerant expands isentropically? (c) Suppose the cycle of (a) is modified by the inclusion of a countercurrent heat exchanger between the condenser and the throttle valve in which heat is transferred to vapor returning from the evaporator. If liquid from the condenser enters the exchanger at 300.15 K (27°C) and if vapor from the evaporator enters the exchanger at 247.15 K (-26°C) and leaves at 294.15 K (21°C), what is the circulation rate of the refrigerant?
i need the answer quickly
As shown below, a refrigeration cycle condenses a flow of ammonia from a saturated vapor at 4 barto a saturated liquid. The entering volumetric flow rate of the ammonia is 0.1 m3/s. The ammonia functions asthe cold reservoir for the refrigeration cycle, and the hot reservoir is at 25 ∘C. A faded specification sheet for therefrigeration cycle reads that the required power input is 35 kW.(a) Is this cycle possible? Why or why not?(b) If the cycle is impossible, how much work input is required to make the cycle
A reversible refrigerator operates using a Carnot refrigeration cycle. It operates usingr-134a between 140 and 400 kPa. The refrigerant exits the compressor (and enters the condenser) assaturated vapor. It also leaves the condenser as saturated liquid.a. Sketch the P-v and T-s diagram of this cycle. Define the coordinate properties of each state oneach graph.b. Evaluate the specific heat and specific work properties of each (in kJ/kg). Indicate the sense.c. Evaluate the coefficient of performance using the specific heats and works from the previousitem. Did it match with the COPR obtained if you used the operating temperatures? Solve for states first. Then, show the solution to each of the above required in order.