FILL IN THE BLANKS-REFRIGERATION EVAPORATORS

 

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FILL IN THE BLANKS-

REFRIGERATION EVAPORATORS

Fill in the blanks will improve the

deep understanding of a evaporator

used in refrigeration. Evaporators are

the cooling unit in a refrigeration unit.

Both dry and flooded evaporators

produce cooling using latent heat.

Fill in the blanks for evaporators in

refrigeration further increases practical

knowledge.

  1. Evaporator used in the domestic units is ————evaporator.

  2. Commercial refrigeration uses an evaporator which is ————-evaporator.

  3. Industrial refrigeration uses an evaporator which is  ————-evaporator.

  4. The evaporator is placed between —————- and —————-.

  5.  Degree of super heat in dry evaporators is ————–.

  6. But flooded evaporator require   ————–degree of super heat.

  7. Standard degree of super heat  is ————–.

  8.  In actual practice, degree of super heat is ————–.

  9. Refrigerant evaporates in the evaporator by taking ——–heat in the evaporator.

  10.  Refrigerant evaporates by absorbing latent heat from the ——–to be cooled.

  11.  Other name of evaporator is  ——unit.

  12. Pressure of the refrigerant is ——in the evaporator.

  13. Temperature of the refrigerant is ——in the evaporator.

  14. State of the refrigerant at the inlet of the evaporator is mostly————.

  15. At the outlet of the dry evaporator, state of the refrigerant  is ————-vapor.

  16. Name of the unit between the flooded evaporator and compressor is ————.

  17.  Expansion valve used with dry evaporators is ————-.

  18. The expansion valve used with flooded evaporators is ——-side float

  19. Evaporation temperature in the evaporator depends upon the ————in the evaporator.

  20.  Evaporator pressure is linked to the ——boiling point of the refrigerant.

  21.  Most of the evaporators have pressure  ———- atmospheric pressure.

  22.  Outlet of the flooded evaporator has refrigerant as  ——–and————.

  23. Material of the evaporator tubes is ————–with ammonia as refrigerant.

  24.  Evaporator tubes made of  ————–are used with refrigerant R-134a.

  25.  COP of a refrigeration unit———–with the decrease of evaporation temperature.

  26. Power input increases as evaporator temperature ————.

ANS:

  1. Dry, 2. Dry, 3. Flooded, 4. Expansion vale, compressor, 5.zero, 6.zero, 7.50C, 8. Variable, 9.latent, 10. Products, 11. Cooling, 12. Low, 13. Low, 14. Liquid, 15.saturated, 16. Accumulator, 17. Capillary tube, 18.Low, 19. Pressure, 20. Normal, 21. Above, 22. Liquid, vapor, 23. Steel, 24. Copper, 25. Decreases, 26. decreases