COLD-HOT AISLE CONTAINMENT SYSTEM

What is the cold/hot aisle containment system in a computer room, and why does a computer room need cold and hot aisle isolation?
What is the working principle of the cold/hot aisle in a computer room?
With the continuous increase in the power consumption of server equipment, the heat dissipation capacity required for the cabinets needs to be greatly enhanced. Reasonable use of the cold aisle solution can greatly improve the heat dissipation capacity of the data center and make full and effective use of the cabinet and computer room space. The cold/hot aisle containment system is based on the principle of the separated and orderly flow of cold and hot air. The cold air is blown out from under the raised floor and enters the enclosed cold aisle. The equipment at the front of the cabinet inhales the cold air. After cooling the equipment, hot air is formed and discharged from the back of the cabinet to the hot aisle.
The gas in the hot aisle quickly returns to the air conditioner's return air inlet. The closed turbine rear door of the cabinet collects the hot air and is seamlessly connected to the ceiling through a vertical air duct. The hot return air is completely isolated from the cooling capacity. Therefore, the utilization rate of the internal cold air is increased, more heat generated by the equipment is carried away, and the equipment temperature is reduced.

Problems Existing in the Cold and Hot Aisles

(2) Excessive Dependence on Precision Air Conditioners
Since the temperature in the cold and hot aisles is mainly regulated by relying on precision air conditioners, the air circulation in the cold and hot aisles all needs to be adjusted by precision air conditioners. Moreover, when constructing the cold and hot aisles, the air supply area is required to be enclosed. As a result, it is very difficult for the management personnel to detect the faults of the precision air conditioners, which leads to the emergence of many problems.

Characteristics of cold and hot aisle isolation:

(1) Modularity
(2) Safety
(3) Convenience
(4) Aesthetics
(5) Customization on demand
According to the width of the corridor outside the on-site enclosed aisle, the enclosed aisle can choose the push-pull door opening method or the left-right translation door opening method, and the enclosure solution can be flexibly adjusted.
1. All components of the aisle enclosure are installed and fixed on the load-bearing frame of the cabinet.

3. The installation is simple, the overall coordination is beautiful, it will not damage the existing decoration of the computer room, and there is no need for open fire or welding at the installation site.



(1) Cable perforations under the cabinets. In many current cases, the under-floor air supply cold aisle enclosure is adopted. However, in non-rigorous engineering construction, the details of the cabinets are often not noticed. The cables at the bottom of the cabinet are directly perforated at the opening of the cabinet, and no measures are taken to seal the redundant gaps. This causes cold air to enter the cabinet and reduces the temperature at the air outlet. As a user or an engineering contractor, you need to consider this point. I have always despised the practice of only promoting concepts without paying attention to the matching of details.



(3) The distance between the indoor air supply main unit and the air outlet
If the air outlet of the under-floor air supply main unit is too close to the air outlet, due to the air pressure at the air outlet, the wind speed of the cold air at the bottom is too high, and the cooling fan of the equipment cannot fully absorb the cold air for cooling.
Therefore, as project designers, you must consider carefully how to guide customers.