Data center computer room cooling solution
With the rapid development of the communications industry, the energy consumption of network core equipment, power systems, and computer room equipment accounts for an increasing proportion of the total energy consumption in society, and the cooling power consumption of data centers accounts for 45%-50% of the overall power consumption, energy saving and emission reduction Become an important industry responsibility and the future trend of computer room construction.
In order to adapt to this trend, a thermal management plan for the computer room was proposed to provide a safe and reliable operating environment for the communication equipment in the computer room, and to achieve the purpose of energy saving and emission reduction through the reasonable distribution of cold and hot airflow.
1) The way that the precision air-conditioning system diffuses the air-conditioning
In order to cool the local high-heat area, the temperature of the entire air-conditioning system often needs to be adjusted very low. At present, most of them are set to the working mode of "forced cooling, 25°C" or "automatic, 28°C start", and the air conditioners in some computer rooms are even turned on throughout the year. Therefore, despite the optimization of the organization of cold and hot airflow, the phenomenon of power waste Still more common and serious.
Pros and cons
Improve airflow management, and the heat dissipation capacity of the computer room has been improved;
The whole area cooling and cooling, the cooling efficiency of the computer room is low, and it cannot meet the PUE value standard of the green data center
Unable to meet the cooling requirements of medium and high-density cabinets, a large number of local hotspots appear; resulting in a reduction in the utilization rate of the space in the computer room.
2), intelligent fresh air system
The fresh air system in the computer room is a simple transformation of the computer room building and a ventilation system controlled by intelligent logic. It makes full use of the temperature difference between the internal and external environment of the computer room to realize the direct exchange of hot and cold air inside and outside the computer room to cool down naturally, and controls the operation of the computer room air conditioner through linkage. State, achieve the purpose of reducing the running time of the air conditioner in the computer room and reducing the energy consumption of the air conditioner in the computer room.
Pros and cons
Direct use of natural cold air, high heat exchange efficiency and significant energy saving effect
Causes the air cleanliness in the equipment room to decrease, and equipment failures due to dust, static electricity, humidity, etc. increase
3), intelligent heat exchanger system
Under the premise of completely isolating the internal and external air, the heat exchanger uses the external cold source to cool the internal environment, so as to reduce the air conditioning running time and achieve the purpose of energy saving.
Pros and cons
No contact between indoor and outdoor air, only heat exchange, keeping cleanliness without dropping heat, and humidity unchanged The heat exchange efficiency is not high, and it has no effect in the area where the temperature exceeds 15 degrees.
Advantages and benefits of the combined use of computer room air conditioners and heat exchangers
The heat exchanger can completely replace the air conditioning refrigeration in winter, reducing the power consumption of the refrigeration equipment in the computer room; at the same time, it reduces the operating time of the air conditioner and prolongs the service life of the air conditioner; Guarantee the safe and reliable operation of communication equipment to a limited extent.
