Question

(3) A manufacturing company is intending to use its water cooled condenser for its proposed cold storage room. The name plate of the condenser gives the following specifications: \begin{tabular}{ll} refrigerant & ammonia \\ condenser water inlet & \( 30^{\circ} \mathrm{C} \) \\ condenser water outlet & \( 40^{\circ} \mathrm{C} \) \\ condensing temperature & \( 35^{\circ} \mathrm{C} \) \\ refrigerant flow & \( 3.84 \mathrm{~kg} / \mathrm{min} \) \\ circulating water flow & \( 120 \mathrm{~kg} / \mathrm{min} \) \end{tabular} (a) If the company decided to purchase a new compressor and evaporator, find the tonnage of the system and the temperature in the evaporator, (b) what is the COP? (c) find the theoretical \( { }^{\mathrm{hp}} \) required.

          (3) A manufacturing company is intending to use its water cooled condenser for its proposed cold storage room. The name plate of the condenser gives the following specifications:

\begin{tabular}{ll} 
refrigerant & ammonia \\
condenser water inlet & \( 30^{\circ} \mathrm{C} \) \\
condenser water outlet & \( 40^{\circ} \mathrm{C} \) \\
condensing temperature & \( 35^{\circ} \mathrm{C} \) \\
refrigerant flow & \( 3.84 \mathrm{~kg} / \mathrm{min} \) \\
circulating water flow & \( 120 \mathrm{~kg} / \mathrm{min} \)
\end{tabular}
(a) If the company decided to purchase a new compressor and evaporator, find the tonnage of the system and the temperature in the evaporator, (b) what is the COP? (c) find the theoretical \( { }^{\mathrm{hp}} \) required.
        
Show more…
(3) A manufacturing company is intending to use its water cooled condenser for its proposed cold storage room. The name plate of the condenser gives the following specifications:

 
refrigerant     ammonia 

condenser water inlet     30^∘C 

condenser water outlet     40^∘C 

condensing temperature     35^∘C 

refrigerant flow     3.84  kg / min 

circulating water flow     120  kg / min

(a) If the company decided to purchase a new compressor and evaporator, find the tonnage of the system and the temperature in the evaporator, (b) what is the COP? (c) find the theoretical ^hp required.

Added by Stephen C.

Close

Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Yunus A. Çengel, Michael A. Boles 8th Edition
Chapter 11
AceChat toggle button
Close icon
Ace pointing down

Please give Ace some feedback

Your feedback will help us improve your experience

Thumb up icon Thumb down icon
Thanks for your feedback!
Profile picture
(3) A manufacturing company is intending to use its water cooled condenser for its proposed cold storage room. The name plate of the condenser gives the following specifications: \begin{tabular}{ll} refrigerant & ammonia \\ condenser water inlet & \( 30^{\circ} \mathrm{C} \) \\ condenser water outlet & \( 40^{\circ} \mathrm{C} \) \\ condensing temperature & \( 35^{\circ} \mathrm{C} \) \\ refrigerant flow & \( 3.84 \mathrm{~kg} / \mathrm{min} \) \\ circulating water flow & \( 120 \mathrm{~kg} / \mathrm{min} \) \end{tabular} (a) If the company decided to purchase a new compressor and evaporator, find the tonnage of the system and the temperature in the evaporator, (b) what is the COP? (c) find the theoretical \( { }^{\mathrm{hp}} \) required.
Close icon
Play audio
Feedback
Powered by NumerAI
Danielle Fairburn Ivan Kochetkov
David Collins verified

Khoobchandra Agrawal and 92 other subject Physics 101 Mechanics educators are ready to help you.

Ask a new question

*

Labs

-

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

*

Key Concepts

-
Key Concept
Premium Feature
Explore the core concept behind this problem.
Play button
Key Concept
Premium Feature
Explore the core concept behind this problem.
Your browser does not support the video tag.

*

Recommended Videos

-
a-large-refrigeration-plant-is-to-be-maintained-at-15circ-mathrmc-and-it-requires-refrigeration-at-a

A large refrigeration plant is to be maintained at $-15^{\circ} \mathrm{C},$ and it requires refrigeration at a rate of $100 \mathrm{kW}$ The condenser of the plant is to be cooled by liquid water, which experiences a temperature rise of $8^{\circ} \mathrm{C}$ as it flows over the coils of the condenser. Assuming the plant operates on the ideal vapor-compression cycle using refrigerant-134a between the pressure limits of 120 and $700 \mathrm{kPa}$, determine $(a)$ the mass flow rate of the refrigerant, $(b)$ the power input to the compressor, and (c) the mass flow rate of the cooling water.

Thermodynamics: An Engineering Approach

a-10tr-refrigeration-system-is-required-for-a-food-storage-locker-the-evaporator-temperature-of-20c-and-the-condenser-temperature-of-50c-the-working-fluid-is-r-134a-the-refrigerant-is-super-15941

A 10 TR refrigeration system is required for a food storage locker. The evaporator temperature is -20°C and the condenser temperature is 50°C. The working fluid is R-134a. The refrigerant is superheated by 5°C in the evaporator. The refrigerant is subcooled by 5°C at the exit of the condenser and before entering the expansion valve. The refrigerant compresses in a double-cylinder single-acting reciprocating compressor having L/D as 1.1 and 80% volumetric efficiency. The compressor runs at 1200 rpm. Calculate: (a) mass flow rate of refrigerant in kg/s (b) bore and stroke of the compressor in mm (c) theoretical power required in kW (d) COP.

Andreas P.

a-commercial-refrigerator-with-refrigerant-134a-as-the-working-fluid-is-used-to-keep-the-refrigera-2

A commercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at $-35^{\circ} \mathrm{C}$ by rejecting waste heat to cooling water that enters the condenser at $18^{\circ} \mathrm{C}$ at a rate of $0.25 \mathrm{~kg} / \mathrm{s}$ and leaves at $26^{\circ} \mathrm{C}$. The refrigerant enters the condenser at $1.2 \mathrm{MPa}$ and $50^{\circ} \mathrm{C}$ and leaves at the same pressure subcooled by $5^{\circ} \mathrm{C}$. If the compressor consumes $3.3 \mathrm{~kW}$ of power, determine $(a)$ the mass flow rate of the refrigerant, (b) the refrigeration load, $(c)$ the $\mathrm{COP}$ and $(d)$ the minimum power input to the compressor for the same refrigeration load.

Thermodynamics: An Engineering Approach


*

Recommended Textbooks

-
University Physics with Modern Physics

University Physics with Modern Physics

Hugh D. Young 14th Edition
achievement 1,658 solutions
Physics: Principles with Applications

Physics: Principles with Applications

Douglas C. Giancoli 7th Edition
achievement 1,423 solutions
Fundamentals of Physics

Fundamentals of Physics

David Halliday, Robert Resnick , Jearl Walker 10th Edition
achievement 1,652 solutions
Need help? Use Ace
Ace is your personal tutor. It breaks down any question with clear steps so you can learn.
Start Using Ace
Ace is your personal tutor for learning
Step-by-step explanations
Instant summaries
Summarize YouTube videos
Understand textbook images or PDFs
Study tools like quizzes and flashcards
Listen to your notes as a podcast
Continue solving this problem
Create a free account to:
  • View full step-by-step solution
  • Ask follow-up questions with Ace AI
  • Save progress and study later
Continue Free
Join the community

18,000,000+

Students on Numerade


Trusted by students at 8,000+ universities

Numerade

Get step-by-step video solution
from top educators

Continue with Clever
or



By creating an account, you agree to the Terms of Service and Privacy Policy
Already have an account? Log In

A free answer
just for you

Watch the video solution with this free unlock.

Numerade

Log in to watch this video
...and 100,000,000 more!


EMAIL

PASSWORD

OR
Continue with Clever