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When the compressor is operating at full load, will the air supply volume definitely reach the rated value specified in the data sheet? Now the readings from the flow meter are much lower

2021-11-12View Original

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There is a turbo compressor with a rated air supply capacity of 12,000 N.m3/h; it is currently operating at full load (the IGV is at 100%, and that’s what the equipment operators refer to as full load). The air produced by the compressor, although passing through desiccants and filters, results in a flow rate that is much lower than 12,000, as measured by the flow meter. I don’t know much about compressors either; I’ve set all the parameters for the flow meter, but the output is still much too low. Out of desperation, and with a try-it-out attitude, I asked if anyone had encountered this situation – whether the compressor is actually able to achieve its rated air supply volume
Reply #22021-11-12
It is recommended to get a copy of \"Principles of Chemical Engineering\" and take a look at it. The specifications for equipment are determined under certain conditions; for example, the gas flow rate specified for an equipment is the flow rate under standard conditions. The so-called standard conditions are mainly influenced by changes in atmospheric temperature, which requires calculation. Air is affected by temperature: at higher temperatures, its density is low, while at lower temperatures, its density is high. During normal production, just paying attention to pressure is sufficient. If the temperature drops to a certain level, it is likely that your guide vanes will need to be set to a very small position; adjustments should be made based on pressure and rated current to ensure stable airflow at the rear. At this point, there is no need to adjust production through calculations, as the flow meter errors are often quite large, and the theoretical values do not match the actual ones. It is still best to use the required pressure and rated current as a reference for guidance.
Reply #32021-11-13
First, you need to confirm whether 12,000 is the nominal value The output of compressors is generally expressed in terms of cubic feet per minute; it’s important to confirm the unit first. Additionally, make sure that the flow rate indicated by the flow meter has also been converted to standard cubic feet Generally, the readings from flow meters are not in standard units; they need to be converted or compensated to standard units. This depends on the type of flow meter being used and whether it has built-in compensation features. I’ll answer you once I have more information; there isn’t enough info at the moment

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