Thermosyphon Principle w/ CO2
The thermosyphon principle is a natural refrigeration cycle that can be used in CO2 secondary refrigeration systems. In this type of system, the refrigerant CO2 can be used to cool a secondary fluid, such as glycol, or be circulated through a cooling loop to cool various applications such as refrigeration circuits, process equipment or air conditioning units.
The thermosyphon principle relies on the natural circulation of the refrigerant and the secondary fluid due to the differences in temperature and density. In a CO2 secondary system, the thermosyphon loop typically consists of a vertical pipe connected to a heat exchanger, which is in turn connected to a horizontal pipe.
As the refrigerant CO2 absorbs heat from the secondary fluid in the heat exchanger, it vaporizes and becomes less dense. This causes the vaporized CO2 to rise up the vertical pipe and enter the horizontal pipe, where it then releases heat and condenses back into a liquid. The liquid CO2 then flows back down the vertical pipe to the heat exchanger, where the cycle begins again.
The thermosyphon principle is a simple and reliable way to circulate refrigerant and secondary fluid without the need for pumps or other mechanical components. However, it requires careful design and sizing to ensure proper flow rates and heat transfer, as well as proper insulation to prevent heat loss and maintain system efficiency.
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Recently did a similar install for cooling Electronic pods using Thermosyphon CO2!
CEO at AfakD for HVACR Systems
1 年Thanks for this clear explaining .....??
Senior Account Executive
1 年Thermosyphon is used in Industrial refrigeration (ammoina) systems using screw compressors for oil cooling. Very simple and effective!!
The man who came back to the cold and owner of #eDonkeyfication - Mr Fridge
1 年Who said that refrigeration is all about HFC and HFO's a great example of how using natural refrigeration techniques that have been around longer than the HFC's are proactive and practical in many areas including the transport refrigeration sector. Thanks Refrigeration Mentor for letting people understand that there are alternative systems out there now and long may they prosper. #transportrefrigeration #transport #gonatrefs Also a little side note --- As we transition to non HFC and HFO products the cost for that transition is borne by the operator not the OEM. So why transition in stages when you can take the direct step to natural refrigeration. If the OEM does not want to work with you on.. then find another one.