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princessme
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I've came across many references for pressure drop calculations for dilute phase pneumatic conveying, but I've yet to encounter any for dense phase. Anyone has any idea how do i calculate that? Thank you
Dense phase pneumatic conveying is a method of transporting bulk materials through a pipeline using a gas or air as the conveying medium. In this method, the material is conveyed at a low velocity and high pressure, resulting in a dense and compact flow.
The pressure drop in dense phase pneumatic conveying is calculated using the Darcy-Weisbach equation, which takes into account the material properties, pipeline geometry, and gas flow rate. This equation can be solved using various methods, such as the Colebrook-White equation or the Moody diagram.
The pressure drop in dense phase pneumatic conveying is affected by various factors such as the material properties (density, particle size, shape), pipeline geometry (diameter, length, bends), gas flow rate, and operating pressure. Additionally, the type of gas used and the moisture content of the material can also impact the pressure drop.
To reduce pressure drop in dense phase pneumatic conveying, the gas flow rate can be increased, the pipeline diameter can be increased, and the number of bends can be minimized. Additionally, using a lubricant or reducing the moisture content of the material can also help reduce pressure drop.
Some common challenges in calculating pressure drop in dense phase pneumatic conveying include accurately determining the material properties, accounting for changes in the material properties during conveying, and accounting for changes in operating conditions (e.g. varying gas flow rate or moisture content). Additionally, the use of different equations or methods can also lead to variations in the calculated pressure drop.