White Paper: Power Considerations of Pneumatic Convey Systems
Here’s a sneak peek at the latest white paper from Mac Process.
“Significant research has been conducted in regards to understanding the gas flows and pressures required to pneumatically convey materials, however the true power requirements to operate a pneumatic conveying system are less well defined. The work performed by a pneumatic conveying system (actual work) comes from the compression of the conveying gas (volume and pressure) and originates at the compression device. The operation of the compression device encompasses several inefficiencies which serve to define the needed energy input (apparent work) to operate a pneumatic conveying system. Rotary airlock leakage is a common source of lost supply gas that is generated by the compression device but is not used in the convey line to transport material. Delivery of the convey gas from the compression device to the feedpoint will create pressure drop (especially when gas flow control devices are employed) and in turn elevates the supply pressure required. Finally, the compression device itself will carry an absolute compression efficiency. These factors combine to generate an apparent work that is drastically different than the actual work required to convey the material. Therefore, it is the application of the apparent work analysis that will determine if a process if being operated efficiently.”
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