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 54 lbf/in2. Evaporator 2 operates at 54 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. 71 Expansion Avale Save for Later Expansion A valve Comer Evaporator OF Compres -10km Step 1 Determine the temperature, in "F, of the refrigerant in evaporator 2. Exponator Q-3 Direct contact heat exchanger Attempts: 0 of 4 used Submit A

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
Chapter28: Special Refrigeration Applications
Section: Chapter Questions
Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?
icon
Related questions
Question
Thermodynamics 1 Pls help me answer this one
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 54 lbf/in2.
Evaporator 2 operates at 54 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.
Step 1
7₁-¹
+5
Save for Later
Expansion
A valve
-6
Expansion
A valve
-7
+ love
|
Evaporator
OF
Condenar
Compressor
2
<
-10 tons
Determine the temperature, in °F. of the refrigerant in evaporator 2.
Compressor
1
Evaporator
2-5 ton
Direct
contact
heat
exchanger
+2
We
W..
Attempts: 0 of 4 used Submit Answer
Step 2
The parts of this question must be completed
in order. This part will be available when you
complete the part above.
Step 3
The parts of this question must be completed
in order. This part will be available when you
Transcribed Image Text: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 54 lbf/in2. Evaporator 2 operates at 54 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. Step 1 7₁-¹ +5 Save for Later Expansion A valve -6 Expansion A valve -7 + love | Evaporator OF Condenar Compressor 2 < -10 tons Determine the temperature, in °F. of the refrigerant in evaporator 2. Compressor 1 Evaporator 2-5 ton Direct contact heat exchanger +2 We W.. Attempts: 0 of 4 used Submit Answer Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above. Step 3 The parts of this question must be completed in order. This part will be available when you
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Refrigeration and Air Conditioning
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
Refrigeration and Air Conditioning Technology (Mi…
Refrigeration and Air Conditioning Technology (Mi…
Mechanical Engineering
ISBN:
9781305578296
Author:
John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:
Cengage Learning