The computer room air conditioner is one of the air conditioners. It has an independent refrigeration system, independent heating system, independent humidification system, independent dehumidification system, etc. It is a kind of high technical content in air conditioning. However, non-professionals do not know about it comprehensively. Next, we will share with you the introduction and characteristics of computer room air conditioners to provide a certain reference for consumers.
First, the computer room air conditioning introduction
The computer room air conditioner, as its name suggests, is a high-precision air conditioner specially designed for use in the computer room. Because it can not only control the temperature of the equipment room, but also control the humidity at the same time, it is also called the air conditioner of the constant temperature and humidity air conditioner room, and because of its temperature and humidity. The precision of control is very high, also known as precision air conditioning in the engine room.
The main service object of computer room air conditioner is computer, which provides stable and reliable IDC and test room temperature, relative humidity and air cleanliness. It has high sensible heat ratio, high energy efficiency ratio, high reliability and high precision.
The equipment in the computer room is composed of a large number of microelectronics, precision mechanical equipment, etc., and these devices use a large number of electronic components, mechanical components and materials that are susceptible to temperature and humidity. The precision air conditioner in the computer room is a special air conditioner designed for the modern electronic equipment room. Its work accuracy and reliability are much higher than ordinary air conditioners. To improve the stability and reliability of the equipment used in these rooms, it is necessary to strictly control the temperature and humidity of the environment to a specific range.
Second, the computer room air conditioning features
1, annual refrigeration
Because the heat generated in the equipment room is very large, too much heat will cause a series of problems. Some IDC engine rooms generate more than 300w/m2 of heat, so all year round is cooling.
One point to mention here is that the computer room air conditioner also has a heater, which is only activated when dehumidifying. The air outlet temperature should be relatively low for dehumidification, and the room temperature should not be lowered too quickly (the room temperature requirement does not exceed 1 °C every 10 minutes, and the humidity does not exceed 5% per hour).
2, high apparent heat ratio
The sensible heat ratio is the ratio of the amount of sensible cooling to the total amount of cooling. The total cooling capacity of the air conditioner is the sum of the sensible cooling capacity and the submerged cooling capacity, wherein sensible cooling is used to cool down, and latent cooling is used to dehumidify. The heat in the equipment room is mainly sensible heat, so the sensible heat of the air conditioner in the computer room is relatively high, generally above 0.9 (the average comfortable air conditioner is only about 0.6). The large air volume and small air gap are the essential differences between computer room air conditioners and other air conditioners. With a large amount of air, the temperature of the air outlet can be kept too low, and the number of air changes in the equipment room can be increased, which is advantageous for both the operation of the server and the computer.
3, high energy efficiency ratio
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 of the computer room air conditioners use scroll compressors (the minimum power is also 2.75 kW), the COP can reach 5.6. The energy efficiency ratio of the whole machine is above 3.0.
4, high precision design
The computer room air conditioner can not only adjust the temperature, but also adjust the humidity, and the accuracy is very high. Computers, especially servers, have particularly high requirements for temperature and humidity. If the changes are too large, computer calculations may be erroneous, which is very unfavorable for service providers, especially in the banking and communications industries. The air conditioning requirements of the computer room are generally ±2 °C in temperature accuracy and ±5% in humidity accuracy. The high-precision room air conditioner can have a temperature accuracy of ±0.5 °C and a humidity accuracy of ±2%.
Through the above introduction, we must have a certain understanding of the computer room air conditioner and its characteristics. If you want to know more about computer room air conditioning, please continue to pay attention to the decoration home network.
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