The special air conditioner for the computer room is a type of air conditioner specially provided for the computer room. Its high precision can control not only the temperature of the computer room but also the humidity. So what are its advantages? Now let's learn this together.
Sensible heat ratio is the ratio of sensible cooling capacity to total cooling capacity. The total cooling capacity of the air conditioner is the sum of the sensible cooling capacity and the latent cooling capacity. The sensible cooling is used to lower the temperature, and the latent cooling is used to dehumidify. The heat in the computer room is mainly sensible heat, so the sensible heat in the computer room air conditioner is relatively high, generally above 0.9 (common comfort air conditioners are only about 0.6). Large air volume and small enthalpy difference are the essential differences between computer room air conditioners and other air conditioners. The use of large air volume can make the temperature of the air outlet not too low, and increase the number of air changes in the computer room, which is beneficial to the calculation of the server and the computer. If the temperature changes too much in a short time in the equipment room, it will cause server operation errors, and if the humidity in the equipment room is too low, it will cause static electricity (static electricity can reach 10,000 volts when the humidity is 20%).
Energy efficiency ratio (COP) Even if the conversion ratio between energy and heat, 1 unit of energy is converted into 3 units of heat, COP = 3. Since most computer room air conditioners use scroll compressors (the minimum power is also 2.75KW), the maximum COP can reach 5.6. The energy efficiency ratio of the whole machine reaches above 3.0.
The most important thing in a computer room is reliability. For 8760 hours of operation throughout the year, trouble-free operation requires reliable components and excellent control systems for the computer room air conditioner. Generally, the computer room is mostly N + 1 backup. If one air conditioner fails, other air conditioners can immediately take over the entire system.
The computer room air conditioner can adjust not only the temperature but also the humidity, and the accuracy is very high. Computers, especially servers, have particularly high requirements on temperature and humidity. If the changes are too large, errors in computer calculations may occur, which is very disadvantageous for service providers, especially in the banking and communications industries. Computer room air conditioners generally require temperature accuracy of ± 2 ° C and humidity accuracy of ± 5%. High-precision machine room air conditioners can achieve temperature accuracy of ± 0.5 ° C and humidity accuracy of ± 2%.
Because the heat generated in the equipment room is very large, excessive heat generation can cause a series of problems. Some IDC rooms have a heat output of more than 300w / ㎡, so they are cooled throughout the year.
