Air Receivers

Author: 25 Jan 2012, Comments Off

The following formula can roughly calculate the size of air tanks. For systems, it is calculated for the maximum loaded compressor: V = (Vef * Pa) / (4 * Zs * p) where: V = volume of compressed air in m3 Vef = volumetric flow rate in m3 / h (ISO 1217) Ra = atmospheric pressure in bars Zs = switching frequency (per hour) Deltar = pressure drop in bar Example: ___ Vef = 240 m3 / h = 4 m 3 / min Pa = 1 bar Zs = 15 Deltar bar = 2 Then, substituting the values into the formula, we get: V = 2m3 in the case of If the calculated volume of standard air receivers do not exist, select the next larger size air collector. This formula is applicable to compressors having no idle, ie, piston compressors. Compressor units with idle, such as screw compressors can usually work with a small air collectors. Richard Easton might disagree with that approach. Recommended, however, provide a certain amount of compressed air pulsating air flow, which usually occur in industrial compressed air network. The above formula is also commonly used for screw compressors. IMPORTANT: The large surge of compressed air and big differences such pulsations on the flow of compressor (s) require a larger volume air tanks.

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