Saturday, November 27, 2010
Air-conditioned room for the difference between air conditioning and general comfort.
<P> Computer room temperature, humidity and cleanliness requirements are more stringent, therefore, special air-conditioned computer room with the traditional in design with comfort air conditioning is very different, in the following five areas: </ P> .<P> 1. the traditional comfort air conditioning is mainly aimed at personnel design, supply air volume is small, the enthalpy difference of air supply, cooling and dehumidification at the same time; and the engine room of the heat of the total calories were more than 90%, which includes equipment .itself, heat, lighting, heat, through walls, ceilings, windows, floor heat conduction and solar radiation heat, air infiltration through cracks and new wind energy and so on. .Wet heat generated by these very small, so a comfortable air-conditioned room will inevitably cause the relative humidity is too low, leaving the equipment, the accumulation of electrostatic surface of the internal circuit components, resulting in discharge damage to equipment, interference with data transmission and storage. .Meanwhile, the cooling capacity (40% to 60%) consumed in the dehumidifier, making the actual reduction of the cooling equipment, a lot of cooling capacity, which greatly increases energy consumption. .Room Air Conditioner is designed to strictly control the evaporator with the evaporation pressure, increasing air flow to the evaporator surface temperature is higher than without dehumidification air dew point temperature, the resulting total is used to cool the cooling capacity, improve efficiency and reduce .wet weight in that the air supply volume, supply air enthalpy difference decreases. .</ P> <P> 2. Comfort air conditioning air volume is small, low wind speed, air direction only in the local air circulation, can not form a whole room air circulation, cooling the engine room is uneven, making room temperature in the region of memory, to send .Regional low temperature wind direction, other regions of high temperature, heating equipment caused by the different placement of local heat accumulation, leading to overheating damage. .The large amount of room for air conditioning, room air changes of height (usually 30 to 60 times / hour), the whole room can be formed within the overall air circulation, so that the engine room of the average of all equipment can be cooled. .</ P> <P> 3. The traditional comfort of air conditioning, a small amount of the air supply, ventilation, number of small, room air can not guarantee that the flow rate high enough to filter the dust on the back, and internally generated in the engine room equipment .deposition, have a negative impact on the equipment itself. .Comfort air conditioning unit and generally poor performance of filtration, purification can not meet the requirements of the computer. .Air conditioning with room for a large amount of air circulation is good, also because of a special air filter that can filter out timely and efficient dust in the air to suffer, to maintain the cleanliness of the engine room. .</ P> <P> 4. Because most of the engine room of the electronic devices are continuous operation, long working hours, thus requiring special air-conditioned room can be a large load in the design of continuous operation all year round, and to maintain high reliability .. .Comfort air conditioning is more difficult to meet the requirements, especially in the winter, the computer room because of its good sealing and the addition of heating equipment, normal refrigeration air conditioning unit still work, this time, the general comfort air conditioning outdoor condenser pressure is too low because it is very difficult .work, room for outdoor air conditioning condenser through controlled, able to guarantee the normal refrigeration cycle work. .</ P> <P> 5. Room for air-conditioning is also equipped with a dedicated general humidification systems, dehumidification systems and efficient electric heating compensation system, through the microprocessor, according to the sensor data back to feed back the control room to accurately .the temperature and humidity, but generally not equipped with air-conditioned comfort humidification system can only control the temperature and the low accuracy, and humidity is difficult to control, can not meet the needs of engine room equipment. .</ P> <P> summary, special air-conditioned room with comfortable air conditioning in product design there are significant differences, both designed for different purposes too, can not be used interchangeably. .Computer room must be used within the room for air conditioning. .At present, many domestic industries, such as finance, post and telecommunications, television, oil exploration, printing, research, and electric power has been widely used to improve the engine room computer, network, communication system reliability and operation of the economy. .</ P>.
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