May I ask whether the displacement of a air compressor refers to the volume before compression or after compression?
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For something like this, does the displacement refer to the volume after compression, or to the volume before compression, that is, when it is back to atmospheric pressure?
It refers to the volume at standard pressure; in other words, the displacement is the volume of gas that is expelled after it has been reduced to the pressure it had when it was first drawn in. For example, in the case of 55 KW and 10 kilograms, the displacement is 8 cubic meters per minute. This means that it’s not 8 cubic meters of gas that are expelled, but rather the volume of gas after it has been reduced to atmospheric pressure is 8 cubic meters.
:handshake, you’re welcome
It seems there’s ambiguity in the expression here; generally, it should be converted to cubic meters
Air before compression, and at the local atmospheric pressure. So if you are at a high altitude where the air is thin, you need to make the air compressor slightly larger.
Finally, the volume is converted to the volume at the first-level inhalation position
The exhaust volume indicated on the compressor’s nameplate refers to the volume of gas discharged per unit of time; when converted to the intake condition, it represents the volume of air drawn in.
It should refer to the operating volume of the outlet