In order to get better performance of power-assisted heat pipe systems

the performance of three types of compressors was experimentally studied. The results show that: 1) a compressor with gas pump function has the function of a low compression ratio operation

which can switch between different modes

according to different outdoor temperatures and indoor loads

and simplify the system configuration. Additionally

it has good energy-saving benefits. The coefficient of performance (COP) of the inverter rotor compressor can exceed 20

the COP of the inverter scroll compressor is close to 20

which shows that they can be a good alternative to the liquid pump; 2) for the air-conditioning systems in small data rooms

comprehensive utilization of the gas heat pipe and compression refrigeration technology broaden the utilization time of free cooling. The annual energy efficiency ratio (AEER) is considerably higher than that of the conventional computer room air conditioning. The application of regional energy saving methods such as air cooling

water cooling

and evaporative cooling provide a new strategy for energy saving and emission reduction of modern data centers; 3) for air-conditioning in large data centers

the COP of magnetic bearing compressors exceeds 20

and results in higher energy-saving benefits. However

there is still a certain gap as compared with the liquid pump. At the same time

centrifugal compressors used as gas pumps have a shortage of circulation

which requires the liquid pump to compensate the pressure head.