In a vapour compression refrigeration system, a throttle valve is used in place of an expander because

In a vapour compression refrigeration system, a throttle valve is used in place of an expander because Correct Answer The positive work in isentropic expansion of liquid is very small

In a vapour compression refrigeration system, a throttle valve is used in place of an expander because The positive work in isentropic expansion of liquid is very small
Bissoy MCQ

Related Questions

Which of the following heart valves are mechanical valves? i. Ball Valve ii. Autograft Valve iii. Xenograft Valve iv. Single Leaflet Valve v. Homograft Valve vi. Bi leaflet Valves
Consider the following statements and choose the correct answer:
1. A direct proportionality exists between vapour pressure and the concentration of water vapour in the atmosphere
2. Relative humidity is an expression of the ratio of the actual vapour pressure of the atmosphere when saturated at the same temperature
3. A rise or fall in temperature with no change in vapour pressure will cause a drop or rise, respectively, in relative humidity
4. A rise or fall in vapour pressure with no change in temperature will be accompanied by a rise or fall, respectively, in relative humidity
Vapour compression refrigeration system is less complex than absorber refrigeration system.
The coefficient of performance of a vapour compression refrigeration system is quite high as compared to the air refrigeration system.
In a vapour compression system, the condition of refrigerant before entering the expansion or throttle valve is
The electronic control throttle system operates the throttle valve by
In vapor compression cycle having dry saturated vapor at the end of compression the refrigeration effect is given by? H1 – Enthalpy of vapor before compression H4 – Enthalpy of vapor before entering evaporator H2 – Enthalpy of vapor after compression
In a vapour absorption refrigeration system, the compressor of the vapour compression system is replaced by
From an alloy, two specimens are machined and tested separately under tension and compression. The engineering stress-strain curves as well as the true stress-true strain curves for tension and compression are plotted in the same diagram. Identify the correct statements:
P. The engineering stress-strain curves in tension and compression are identical.
Q. The true stress-true strain curve in compression is lower than the true stresstrue strain curve in tension due to Bauschinger effect.
R. The true stress-true strain curve in tension is above the corresponding engineering stress-strain, curve.
S. The true stress-true strain curve in tension and compression are identical.
Absorption refrigeration uses _______ mechanical power input as compared to vapour compression refrigeration.