Mechanical Engineering Exam  >  Mechanical Engineering Questions  >  An air refrigerator working on Bell-Coleman c... Start Learning for Free
An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine;
1. refrigeration capacity of the system if the air circulated is 40 kg/min;
2. power required for the compressor;
and 3. C.Op of the system.?
Most Upvoted Answer
An air refrigerator working on Bell-Coleman cycle takes air into the c...
Refrigeration Capacity Calculation:
Given:
- Mass flow rate of air (ṁ) = 40 kg/min = 0.67 kg/s
- Initial conditions: P1 = 1 bar, T1 = 268 K
- Final conditions after compression: P2 = 5 bar, T2 = 298 K
- Final conditions after expansion: P3 = 1 bar
The refrigeration capacity (Q̇) can be calculated using the formula:
Q̇ = ṁ * (h2 - h1)
Where h1 and h2 are the specific enthalpies of air at inlet and outlet of the compressor respectively.

Power Required for the Compressor Calculation:
The power required for the compressor (Wc) can be calculated using the formula:
Wc = ṁ * (h2s - h1)
Where h2s is the specific enthalpy of air at the outlet of the compressor in the isentropic condition.

Coefficient of Performance (COP) Calculation:
The Coefficient of Performance (COP) of the system can be calculated using the formula:
COP = Q̇ / Wc
This value gives an indication of the efficiency of the refrigeration system in providing cooling.
By calculating the specific enthalpies at different stages of the cycle and applying the given efficiencies of the compressor and expander, the refrigeration capacity, power required for the compressor, and COP of the system can be determined.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
Explore Courses for Mechanical Engineering exam

Similar Mechanical Engineering Doubts

Top Courses for Mechanical Engineering

An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.?
Question Description
An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.?.
Solutions for An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.? in English & in Hindi are available as part of our courses for Mechanical Engineering. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.? defined & explained in the simplest way possible. Besides giving the explanation of An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.?, a detailed solution for An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.? has been provided alongside types of An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.? theory, EduRev gives you an ample number of questions to practice An air refrigerator working on Bell-Coleman cycle takes air into the compressor at 1 bar and 268 K It is compressed in the compressor to 5 bar and cooled to 298 K at the same pressure. It is further expanded in the expander to 1 bar and discharged to take the cooling load. The isentropic efficiencies of the compressor and expander are 85% and 90% respectively. Determine; 1. refrigeration capacity of the system if the air circulated is 40 kg/min; 2. power required for the compressor; and 3. C.Op of the system.? tests, examples and also practice Mechanical Engineering tests.
Explore Courses for Mechanical Engineering exam

Top Courses for Mechanical Engineering

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev