The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is__________________?
Correct answer: D. More pronounced
- A. Less pronounced
- B. Data insufficient, can't be predicted
- C. Equal
- D. More pronounced
Explanation
For an ideal vapour-compression cycle, COP is approximately proportional to evaporator temperature divided by the difference between condenser and evaporator temperatures. Raising evaporator temperature therefore improves COP more strongly than lowering condenser temperature by the same amount.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Engineering Thermodynamics
598 free Chemical Engineering Thermodynamics MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Engineering Thermodynamics questions
Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?
The principle applied in liquefaction of gases is_____________________?
On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will____________________?
What happens in a reversible adiabatic expansion process ?
In a reversible process__________________?
A system in which there is exchange of energy but not of mass, is called a/an ____________ system?