Single phase flow in pneumatic conveying systems

Marcus, R. D.; Leung, L. S.; Klinzing, G. E.; Rizk, F.

doi:10.1007/978-94-009-0405-7_2

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“…A wide research work has been done in the field but the results are conflicting. Marcus et al [4] stated that the short radius bends cause the least pressure drop, whilst Mills & Mason [5] find short radius bends better in some circumstances while long radius bends were better in other. Generally it is agreed that the contribution of bends toward the overall pressure drop is very significant therefore a whole lot of research was done specifically for the pressure drop due to bends.…”

Section: Relation Between Erosion Pressure Drop and Bend Geometrymentioning

confidence: 99%

The position of the maximum erosion points in coal powder pneumatic transport installations, function of the bend radius / pipe diameter ratio

Ionescu

2024

RE&PQJ

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One major problem of all pneumatic transport installations is the high wear resulting from abrasion at transition sections, especially bends. Using Computational Fluid Dynamics software, by changing the bend radius (BR)/pipe diameter (PD) ratio, the maximum abrasion points, particles velocity and pressure drop were monitored. It was found that as the BR/PD ratio is increased, the erosion and particle velocity values are steadily decreasing. For bends having a BR/PD ratio between 1 and 3. 25 there will be only one maximum erosion point, situated at about 45 0 from the bend entrance. For a BR/PD ratio between 3.5 and 10.25 there will be two maximum erosion points one at approximately 38 0 and the other at about 80 0 from the bend entrance. For a BR/PD ratio between 10.5 and 12 there will be three maximum erosion points one at approximately 30 0 the second at about 60 0 and the third one at approximately 83 0-87 0 from the bend entrance. As the BR/PD ratio increases, the erosion values decrease at a steady rate but the velocity and pressure drop a getting dangerously close to pipe clogging. A balance has to be kept by reaching the lowest erosion rate without clogging the pipes.

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Section: Relation Between Erosion Pressure Drop and Bend Geometrymentioning

confidence: 99%

The position of the maximum erosion points in coal powder pneumatic transport installations, function of the bend radius / pipe diameter ratio

Ionescu

2024

RE&PQJ

View full text Add to dashboard Cite

show abstract

Single phase flow in pneumatic conveying systems

Cited by 1 publication

References 0 publications

The position of the maximum erosion points in coal powder pneumatic transport installations, function of the bend radius / pipe diameter ratio

The position of the maximum erosion points in coal powder pneumatic transport installations, function of the bend radius / pipe diameter ratio

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