Air volume refers to the total volume of air sent out or inhaled by the air-cooled radiator fan per minute. If calculated in cubic feet, the unit is CFM; if calculated in cubic meters, it is CMM, which is often used in radiator products. The air volume unit is CFM.
Calculation formula: N=V×n/Q?
1. N——number of fans (units); V——site volume (m3); n——air exchange Number of times (times/hour); Q——The air volume of a single unit of the selected fan model (m3/h).
2. Air volume refers to the total volume of air sent out or inhaled by the air-cooled radiator fan per minute. If calculated in cubic feet, the unit is CFM; if calculated in cubic meters, it is CMM. Radiator The air volume unit often used for products is CFM.
Extended information:
In the case of the same heat sink material, the air volume is the measurement The most important indicator of the heat dissipation capacity of an air-cooled radiator. Obviously, a radiator with a larger air volume has a higher heat dissipation capacity. This is because the heat capacity of the air is fixed, and a larger air volume, that is, more air per unit time, can take away more heat. Of course, the heat dissipation effect under the same air volume is related to the flow pattern of the wind.
The air circulation volume per unit time includes other subdivisions such as air supply volume and fresh air volume:
Air supply volume is used to indicate the capacity of ventilation equipment such as blowers, and the unit is cubic m/s.
Fresh air volume refers to the total amount of indoor fresh air.
Fans can be classified into many types, such as negative pressure fans, water air conditioners, water curtains, roof fans and other downward ventilation and cooling equipment. At this time, it depends on how you choose. Today I will briefly talk about several methods for cooling down the workshop. I hope it will be helpful to everyone.
The negative pressure fan mainly uses the cooling principle of air convection and negative pressure ventilation to work. The door or window opposite the installation site naturally inhales fresh air and quickly discharges the indoor air to the outside. (This ventilation and cooling equipment is very good. It is now widely used in various workshops and factories. It is favored by many customers and is worth recommending. ).
The air cooler mainly uses underground water to work. In summer, a water pump is used to pump out the water and pass it through the indoor fan plate to achieve the purpose of cooling.
Reference materials:
The purpose of setting up exhaust in the power distribution room:
1. During the use of the power distribution room, the high and low voltage distribution cabinets, contact busbars, and transformers will generate heat, and the power distribution room will be stuffy and the air quality will be affected. becomes very poor, so only mechanical ventilation inside and outside is required, but it does not have to be forced to the roof.
The generator room and the power distribution room are completely different:
1. Use of generatorsDuring the process, the diesel generator will generate a large amount of heat;
2. When the diesel generator burns diesel and converts it into energy form, it will consume a large amount of oxygen and produce carbon dioxide, which will worsen the air.
So the exhaust function of the generator room and the distribution room are different, and they need to be discharged directly to the roof.
In summary, one shaft cannot be shared.