Over the latest decade, the mathematical description (documented in a book) and thereby the calculations are very much improved and therefore, more flexible and user-friendly than ever before.

The parameters, governing the physics are the gas laws, Newton laws, thermodynamic laws, conservation of energy, compressor characteristics, heat exchanges, flow dynamics and material related properties.

The theory enables the calculation of pressure drops, capacities, material losses, material velocities, sedimentation, residence times, condensation, energy demands, system performance, etc.

Due to the many installation configurations and applied equipment, the developed software is extended to cope with all the practical and technical situations, s.a. vacuum systems, pressure systems, compressor types, short conveying routes, long conveying routes, different materials, rotary valves, screw feeders, dryers, coolers, operating altitude, ambient conditions, boosters, stepped pipelines, filters, cyclones, tank systems, continuous systems, back pressure systems, air, nitrogen, etc.

Over the past 38 years, the knowledge is developed, tested and applied on many installations and many different materials, with matching results.

The calculation software allows for quick orientational calculations and accurate calculations, based on the actual pipe routing and equipment and laboratory conveying tests.

It is now justified, to state that pneumatic conveying design is understood and can be calculated in a quick and reliable way.

This statement is under the condition, that the pneumatic conveying engineer is trained in physics and mathematics and has a certain level of field experience.

For more info, www.yarca.nl ■