In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
A. After passing through the condenser
B. Before passing through the condenser
C. After passing through the expansion or throttle valve
D. Before entering the expansion valve
Answer: Option A
Solution(By Examveda Team)
In the vapor compression refrigeration cycle, the refrigerant undergoes phase changes and pressure variations as it moves through different components of the system.Explanation for each option:
After passing through the condenser: The refrigerant is in a high-pressure saturated liquid state after it has released heat and condensed in the condenser.
Before passing through the condenser: This is not the correct condition. Before the condenser, the refrigerant is typically in a high-pressure, high-temperature, and superheated vapor state.
After passing through the expansion or throttle valve: After passing through the expansion valve, the refrigerant undergoes a pressure drop and enters the evaporator as a low-pressure, low-temperature mixture of liquid and vapor.
Before entering the expansion valve: This is not the correct condition. Before the expansion valve, the refrigerant is typically in a high-pressure, high-temperature, and superheated vapor state.
Therefore, in the context of the question, the condition of the refrigerant as a high-pressure saturated liquid occurs after passing through the condenser
This Question Belongs to Mechanical Engineering >> Refrigeration And Air Conditioning
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Comments ( 3 )
Nusselt number (NN) is given by
A. $${{\text{N}}_{\text{N}}} = \frac{{{\text{h}}l}}{{\text{k}}}$$
B. $${{\text{N}}_{\text{N}}} = \frac{{\mu {{\text{c}}_{\text{p}}}}}{{\text{k}}}$$
C. $${{\text{N}}_{\text{N}}} = \frac{{\rho {\text{V}}l}}{\mu }$$
D. $${{\text{N}}_{\text{N}}} = \frac{{{{\text{V}}^2}}}{{{\text{t}}{{\text{c}}_{\text{p}}}}}$$
In case of sensible heating of air, the coil efficiency is given by (where B.P.F. = Bypass factor)
A. B.P.F. - 1
B. 1 - B.P.F.
C. $$\frac{1}{{{\text{B}}{\text{.P}}{\text{.F}}{\text{.}}}}$$
D. 1 + B.P.F.
The undesirable property of a refrigerant is
A. Non-toxic
B. Non-flammable
C. Non-explosive
D. High boiling point
The desirable property of a refrigerant is
A. Low boiling point
B. High critical temperature
C. High latent heat of vaporisation
D. All of these
A and D are correct
A and D are correct
Option A and D is same.
After passing through condenser and before passing through expension valve giving the same sence. So answer should be A and D.