How to calculate the maximum gas production of air compressor

The calculation of the maximum gas production of the air compressor needs to be combined with specific parameters and scenarios. Common methods include theoretical formula calculation, empirical formula estimation, power conversion algorithm and measured correction method. The following is a detailed introduction:

1. theoretical formula calculation

the calculation formula for the gas production of the air compressor is: Q = P×V× 103/54 & asymp;2.1 × 106 m3/min (this formula is a simplified example, and more factors need to be considered in actual calculation). Among them:

• q: Gas production of air compressor, unit: m3/min.
• P: input pressure of air compressor, unit is MPa.
• V: Exhaust volume of air compressor, unit: m3/min.

In practical applications, the calculation of gas production also needs to consider parameters such as intake pressure, exhaust temperature, and compression ratio. For example, due to the decrease of atmospheric pressure in the plateau area, the displacement of the air compressor will obviously attenuate. At this time, the calculation formula of plateau gas volume needs to be used for correction: V1 /V2 = R2 /R1, where V1 is the gas volume in the plain area, V2 is the gas volume in the plateau area, R1 is the compression ratio in the plain area, and R2 is the compression ratio in the plateau area.

2. empirical formula estimation

for specific scenarios, such as nozzle injection volume calculations, the empirical formula: Q = 9.11 × d2 ×(P 1) can be used. Among them:

• q: Injection amount of the nozzle (air supply amount of the air compressor), in L/min.
• d: Diameter of the nozzle in mm.
• P: gauge pressure in bar.
• P 1: absolute pressure, in bar.

The formula is applicable to the calculation of non-integer nozzle size and standard pressure. For example, in the chemical fiber textile industry, the selection of network machine nozzles and the pressure requirements of different network processes can be obtained by this formula.

3. power conversion algorithm

there is a certain conversion relationship between the gas production and power of the air compressor. For example, it is said that 1 cubic meter of gas is produced per 6KW, that is, the 1 kW gas production is 0.1633 m3. However, this method is crude and suitable for rapid estimation. More accurate conversion needs to consider the efficiency of the air compressor, load rate and other factors.

4. measurement correction method

in practical applications, the gas production of the air compressor can be measured by flow meters or waste heat recovery systems, and the air compressor can be adjusted and optimized as needed. For example, real-time data is used to correct the output flow to obtain a more accurate estimate of gas production. The specific formula is: Q =(1 & minus;k)× Qbase k×Qt & minus;1, where k represents the weight coefficient, t & minus;1 indicates the previous sampling period, and q includes the preliminary prediction and the accurate gas production obtained by the sensor in the previous sampling period.