1. Cooling technology Main components and equipments
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2. Main components and equipments
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3. Main components and equipments
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4. Main components and equipments
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5. Main components and equipments
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6. Main components and equipments
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7. Main components and equipments
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8. Main components and equipments
cold water supply
cold water return
distribution pump
water tank
circulation pump
evaporator
7. expansion valve
8. compressor
9. condenser
brine pump
control valve
liquid cooler
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9. Main components and equipments
In a hermetic compressor motor and compressor are inside a tight casing. Hermetic compressors are cooled with suction gas in general. Small piston type and scroll compressors are usually hermetic compressors. Hermetic piston compressors are used e.g. in household refrigerators and freezers and in small size cold rooms and display cabinets. These were used earlier also in air conditioning systems.
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10. Main components and equipments
Hermetic scroll compressors are used nowadays in ground source heat pumps, air to air heat pumps, in small size chillers, direct cooling systems of air handling units etc. They have replaced almost totally piston compressors. They are less moving parts in scroll compressors than in piston compressors and they run with less vibration.
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11. Main components and equipments
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12. Main components and equipments
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13. Main components and equipments
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14. Main components and equipments
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15. Main components and equipments
In semi-hermetic compressors electric motor and compressor are inside a casing which can be opened, so compressor can be repaired unlike hermetic compressors. Medium and big size piston and screw compressors are semi hermetic compressors.
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16. Main components and equipments
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17. Main components and equipments
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18. Main components and equipments
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19. Main components and equipments
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20. Main components and equipments
Figure. Air cooler liquid cooler, installed e.g. on the roof of a building. Fincoil.
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21. Main components and equipments
Figure. Compressor-condenser unit, outdoor model Koja.
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22. Main components and equipments
Figure. Condenser is integrated to an AHU Intervent.
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23. Main components and equipments
Figure. Liquid cooler for indirect condensing
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24. Main components and equipments
Shell – tube heat exchanger
Refrigerant
water
Refrigerant
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25. Main components and equipments
Plate heat exchanger as condenser
Figure. A plate heat exchanger as a condenser. Hot vapor is flowing downwards and cooling liquid / brine upwards.
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26. Main components and equipments
Figure. Direct cooling coil of an AHU Coiltech, Fläktwoods.
Expansion valve and liquid distributor
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27. Main components and equipments
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28. Main components and equipments
Shell tube evaporator
water
water
Refrigerant
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29. Main components and equipments
Figure. Evaporator, gravity coil Fincoil.
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30. Main components and equipments
Figure. Air cooler (evaporator and fans, forced convection) Fincoil.
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31. Main components and equipments
Figure. Mechanical expansion valve Danfoss.
Figure. Mechanical expansion valve with external pressure equalisation Danfoss.
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32. Main components and equipments
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33. Main components and equipments
Figure. Electronic expansion valve (1 = regulator, 2 = electronic expansion valve, 3 = temperature sensor, 4 = pressure sensor) Aittomäki 2008.
Figure. Electronic expansion valve Chiller.
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34. Main components and equipments
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35. Main components and equipments
Figure. Filter dryers to be installed in the liquid line Danfoss, the right one can be opened and filter can be replaced.
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36. Main components and equipments
Figure. A sight glass with moisture indicator Danfoss.
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37. Main components and equipments
Figure. Shut off valves Danfoss.
Figure. Solenoid valve Danfoss.
Figure. Rotalock valves Danfoss.
Figure. Ball valves Danfoss.
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38. Main components and equipments
Figure. Check valves Danfoss.
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39. Main components and equipments
Figure. Pressure switches Danfoss.
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40. Main components and equipments
Figure. Liquid separator EKS Schultze and operation principle Kaappola 2011.
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41. Main components and equipments
Figure. Pressure indicator / manometer in a chiller.
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42. Main components and equipments
Figure. Liquid receiver (tank) Arctest.
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43. Main components and equipments
Figure. Safety / relief valves Castel.
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44. Main components and equipments
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45. Main components and equipments
A real estate scale heat pump
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46. Main components and equipments
Figure. Flexible steel pipe to avoid vibration from compressor to piping.
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