Indirect Thermosyphon Cooling can provide an efficient solution for data centres. It uses the waste heat from the data centre and a combination of gravity and a syphon effect, to drive a refrigeration cycle capable of operating without pumps or compressors, providing remarkable levels of energy efficiency.
With a nominal capacity of 250kW, the packaged system will be the first pump-free system to market, offering a best-in-class dry cooling solution and boasting features such as HFO refrigerant-ready; oil-free, low pressure thermosyphon circuits with no moving parts; zero water consumption and significant energy savings compared to the most efficient pumped refrigerant systems currently available on the market. It has an extensive passive mode providing compressor-free cooling across a wide range of temperatures. It also eliminates the potential risk of contamination from air pollutants, as there is no outside air gaining access to the data hall.
The packaged Air Handling Unit (AHU) system has been designed so that units may be installed side-by-side with no space between. Positioning an uninterrupted bank of packaged AHUs units along the perimeter of a data hall will provide class-leading levels of cooling output per linear meter of outside wall.
Source & Manufacturer’s Information
EFCTC note: An indirect thermosyphon system has a closed loop that circulates a coolant driven by gravity. If it is a two-phase thermosyphon the coolant will boil in the heat collecting part and be condensed in the heat releasing part. The heat releasing surfaces always need to be at a higher point than the heat collecting surfaces. For higher ambient temperatures, a compressor loop is used for cooling the thermosyphon loop in a heat exchanger.
Photo: ©Shutterstock.com (via Cefic)