What is the compression ratio of the fan?
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What is the compression ratio of a fan? I’m not quite sure; please let me know. Thank you, points will be given
These days, the concept of fan compression ratio is rarely mentioned. (Fan compression refers to compressing air to a certain extent, thereby endowing it with energy and achieving an energy storage effect.)； That is, compressed energy storage); currently, few manufacturers offer it. Moreover, how to calculate the compression ratio depends on each company’s capabilities; the higher the compression ratio, the higher its technical level
In simple terms, it is the ratio of outlet pressure to inlet pressure
In simple terms, it is the ratio of the outlet pressure to the absolute inlet pressure
The ratio of the discharge pressure to the inlet pressure is sometimes expressed in other ways, such as pressure rise or temperature rise, all of which can be achieved using a compressor. If you need a centrifugal fan, feel free to message me.
The person upstairs replied, I’ll come and learn* it too
Fans generally have the concept of total pressure
Generally, for fans operating at pressures below 20 kPa, the compression coefficient is not taken into account during design, and it is assumed to be zero. Pressure ratio is a term used for compressors, referring to the ratio of the absolute pressure at the outlet to that at the inlet.
For domestic centrifugal fans, some manufacturers indicate the pressure ratio on the model numbers; for example, for C-type fans, there are models such as C75-1.3 and C75-1.8, where 1.3 and 1.8 represent the pressure ratio
Agree with what was said above; I manufacture multi-stage centrifugal blowers, of the C75-1.3 type, where 1.3 represents the pressure ratio