How to calculate the capacity of the air compressor if the air consumption is known

The capacity of an air compressor usually refers to the volume of air that can be compressed per unit time, while the air consumption refers to the amount of compressed air consumed by the air compressor in practical applications. Generally speaking, the larger the capacity of the air compressor, the more compressed air it can provide. There is a certain relationship between the capacity of the air compressor and the gas consumption, but it is not a simple linear relationship.

Gas consumption (air compressor displacement) has a certain relationship with the pressure, but it has little to do with it. If the displacement exceeds the range specified in the air compressor specification, the pressure will be affected. Moreover, in the case of constant power, when the speed changes, the volume flow and working pressure also change accordingly. Therefore, when selecting an air compressor, it is necessary to determine the appropriate capacity according to the actual gas consumption and the required pressure.

In addition, customers will generally be equipped with gas storage tanks at the use site, and the gas storage tanks will be marked with the corresponding volume. Let the air compressor supply air to the air tank alone, and the displacement of the air compressor can be calculated according to the time when the air is inflated to the calibrated pressure. The specific formula is: PV = nRT, where n, R is the gas constant, T is the absolute temperature, compression and filling process as isothermal process. By measuring the charging time and the pressure change of the air tank, the actual displacement of the air compressor can be calculated, so as to further determine whether its capacity meets the actual demand.

To sum up, to determine whether the capacity of the air compressor meets the specific gas demand, a number of factors need to be considered, including the actual gas consumption, the required pressure, the displacement of the air compressor and the volume of the air storage tank. When choosing an air compressor, it is recommended to consult a professional technician or manufacturer to ensure the accuracy and rationality of the selection.