Abstract
The microchannel heat exchanger is applied as the heat exchanger of the thermosyphon for data center cooling, and the evaporative cooling experiment is carried out on the side of the microchannel condenser. The influence of evaporative cooling on the microchannel condenser is measured by using the enthalpy different laboratory in the experiment, and the temperature difference between the inlet and outlet air of the microchannel condenser and with different indoor and outdoor temperature and humidity was analyzed. The experimental results show that evaporative cooling can make the condenser inlet air temperature achieve a large temperature drop and increase the temperature drop of the inlet and outlet air, while the spraying can cool the air through the thermosyphon about 0.3-1.9 degrees and increase about 0.1-0.6kW heat transfer of the system. Moreover, the evaporative cooling can improve the heat exchange efficiency of condensers, expand the application area of the loop thermosyphon and extend the annual utilization time.
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