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A capillary tube is employed in a refrigeration cycle to
  • a)
    produce cooling effect
  • b)
    control refrigerant from liquid to vapour
  • c)
    control the temperature of refrigerated space
  • d)
    control the flow of refrigerant
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A capillary tube is employed in a refrigeration cycle toa)produce cool...
Capillary tube control the flow of refrigerant by maintaining their enthalpy same.
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A capillary tube is employed in a refrigeration cycle toa)produce cool...
Understanding Capillary Tubes in Refrigeration Cycles
The capillary tube plays a vital role in refrigeration systems, primarily serving as a flow control device. Here’s a detailed explanation of its function:
Flow Control of Refrigerant
- The primary function of a capillary tube is to control the flow of refrigerant in the refrigeration cycle.
- It regulates the amount of refrigerant entering the evaporator, ensuring optimal operation of the system.
- By providing a fixed restriction, it maintains a consistent and controlled flow rate, which is crucial for efficient system performance.
How Capillary Tubes Work
- The capillary tube consists of a long, narrow tube with a small diameter.
- As the refrigerant passes through this tube, it experiences a pressure drop, allowing the refrigerant to expand and change phases effectively.
- This pressure drop is essential for the refrigerant to absorb heat in the evaporator and produce the desired cooling effect.
Importance in Refrigeration Systems
- By controlling the refrigerant flow, the capillary tube helps maintain the necessary temperature and pressure levels within the system.
- It ensures that the evaporator operates efficiently, maximizing the cooling effect while minimizing energy consumption.
- Unlike other expansion devices, such as thermostatic expansion valves, capillary tubes are simpler, cheaper, and more reliable for certain applications.
In conclusion, the correct answer is option 'D' because the capillary tube’s primary role in a refrigeration cycle is to control the flow of refrigerant, facilitating the overall cooling process and maintaining system efficiency.
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A capillary tube is employed in a refrigeration cycle toa)produce cooling effectb)control refrigerant from liquid to vapourc)control the temperature of refrigerated spaced)control the flow of refrigerantCorrect answer is option 'D'. Can you explain this answer?
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