Author(s)

Feihu Chen^1,2, Xinli Zhou³, Shuguang Liao²

¹Civil Engineering College, Hunan University, Changsha, China.
²Changsha Maxxom High-Tech Company Limited, Changsha, China.
³Hunan Branch of China Mobile’s Design Institute, Changsha, China.

In order to achieve the goal of “carbon peak” in 2030 and “carbon neutralization” in 2060, the task of energy conservation has risen to the national strategic level, and its work is urgent. It focuses on energy saving and energy consumption in data center, 5G network and other fields. The gravity heat pipe double cycle air conditioning is a kind of room air conditioning which uses natural cooling source with high efficiency. According to the outdoor meteorological parameters of ten typical cities in China, the calculation model of unit hybrid refrigeration mode is established by using integral method. A simplified algorithm for statistical summation is proposed. Then it compares with the same type of refrigerant pump air conditioner, water-cooled chiller and natural cooling plate. The results show that the annual operation time of gravity heat pipe double cycle air conditioner is 50.8% longer than that of refrigerant pump air conditioner. Then the calculation model is verified by the annual actual operation data of a data center in Changsha. The results show that the double cycle air conditioner with gravity heat pipe can save about 34% energy compared with the chiller. The accuracy of the calculation model is 17.5%, which meets the engineering accuracy requirements. The application of gravity heat pipe double cycle air conditioning in hot summer and cold winter area is a scheme worthy of popularization and application.

Gravity Heat Pipe Double Cycle, Refrigerant Pump, Natural Cooling, Inte-gral Method, Simplified Algorithm for Statistical Summation, Energy Sav-ing Rate

Chen, F. , Zhou, X. and Liao, S. (2021) Energy Saving Model and Calculation Example of Three Cooling Schemes for Data Center in Hot Summer and Cold Winter Area. Journal of Power and Energy Engineering, 9, 1-20. doi: 10.4236/jpee.2021.912001.