Pneumatic Conveying Simulation

You choose dilute or dense phase, set a gas velocity that keeps the powder suspended, and lay out the line to keep pressure drop within the blower’s range. DyssolPro computes the pressure drop for a candidate layout and gas flow, so you can iterate pipe sizing, routing, and velocity against the available pressure before finalizing the design.

Clogging usually means the gas velocity dropped below the saltation velocity, so solids settled and bridged. DyssolPro doesn’t simulate the blockage itself, but it computes the gas velocity and pressure drop along the line, so you can check whether velocity stays above the suspension threshold and find where it falls short.

Breakage comes from impacts at bends and high velocity, reduced by lower velocity (dense phase) and gentler bends. DyssolPro doesn’t model attrition, but it lets you study the gas velocity and bend layout that drive it, so you can choose a lower-velocity design that still conveys — then verify breakage experimentally.

Dilute phase uses high velocity and low loading with solids fully suspended; dense phase uses low velocity and high loading, moving solids as slugs — gentler but needing more pressure. DyssolPro’s model is on the dilute-phase (Siegel) basis, so it’s best applied to suspended-flow lines; dense-phase behavior is outside its assumptions.

Pressure drop is the sum of gas friction, solids acceleration, lift, interparticle friction, and bend losses. DyssolPro computes exactly this breakdown from your pipe-and-bend layout, gas flow, and solids loading, returning the total and each component.

Build-up is settled material from too-low velocity or sticky powder. DyssolPro computes the gas velocity along the line so you can keep it above the suspension threshold; the stickiness/deposit mechanics themselves are a material/operational matter.

Higher air velocity raises impact energy and attrition/degradation, especially at bends. DyssolPro relates the gas flow to velocity and pressure drop, so you can study the lowest velocity that still conveys reliably to limit degradation, even though it doesn’t compute the degradation directly.

Each bend adds a re-acceleration loss and length adds friction, both raising pressure drop. DyssolPro models pipes and bends explicitly with their lengths, diameters, and angles, so you can quantify how routing choices change the total pressure drop.

Dust comes from attrition during transport, reduced by gentler (lower-velocity) conveying. DyssolPro doesn’t model dust generation, but it helps you design a lower-velocity line, and you can couple a downstream cyclone/filter to capture the dust that forms.

This is the unit’s purpose: it estimates gas velocity, solids loading, and the pressure drop along the conveying line. In DyssolPro you define the pipe-and-bend system and the model returns the conveying pressure drop and its components.

Electrostatic build-up is a tribocharging effect (grounding, humidity, additives address it) outside the model’s scope. DyssolPro covers the conveying pressure drop and flow, not the charge generation, which is a material/equipment matter.

Excess air use means the velocity (and thus gas flow) is higher than needed for reliable suspension. DyssolPro lets you study the minimum gas flow that keeps solids suspended at acceptable pressure drop, pointing to a leaner air rate.

The blower must deliver the gas flow at the system’s total pressure drop. DyssolPro computes that pressure drop for your line and loading, giving the operating point the blower must meet — the blower selection itself is then a straightforward match.

Saltation occurs when gas velocity drops below the value needed to keep particles suspended, so they fall out. DyssolPro computes the gas velocity along the line so you can keep it above the saltation threshold; the model flags low-velocity zones rather than simulating the saltation transition itself.

Erosion is driven by particle impacts at bends at high velocity — a mechanical wear effect not modelled. DyssolPro doesn’t compute erosion, but since it scales with velocity and bend loading (both of which it quantifies), it helps you choose a gentler routing and velocity.

Shape changes drag and saltation velocity, so irregular particles convey differently. The model uses bulk properties and a fixed velocity ratio rather than shape, so in DyssolPro shape effects are absorbed into the calibrated/assumed parameters rather than resolved explicitly.

Pressure systems suit one-to-many distribution and longer distances; vacuum suits many-to-one and dust-free pickup. DyssolPro computes the pressure drop either way (you set inlet/outlet pressures), so you can compare the conveying duty; the source/destination topology drives the final choice.

Segregation by size/density happens in dilute flow and at bends — a granular effect the model doesn’t resolve. DyssolPro computes the conveying pressure drop, not segregation, so that aspect is handled by line design and downstream re-mixing.

Blockage detection is a monitoring task (pressure, flow sensors). DyssolPro predicts the normal pressure drop, providing a baseline a rising measured pressure can be compared against, but it doesn’t model the blockage event itself.

This is exactly the unit: from the pipe-and-bend layout and the gas/solids feed it estimates the solids loading and the pressure drop (with its components) along the line, ready to size the system inside the flowsheet.