We would like to present in this article our future releases regarding our software. GAEA will be our new product, a physics modeling and simulation language. GAEA will have its own source code editor, where the user can either write his own programs or use built-in functions to simulate the world around us. Some of the capabilities will include ordinary differential equations solver, optimization and graph algorithms, as well as more mundane tasks, such as regular expressions, csv reading and writing, logging, json parsing.

Stay tuned for more updates in this blog. Do you want...


A new version ( v1.1.1 ) of θTemperature is available with the following new features:

Display of the control point and the corresponding measurement Recording and memorizing of all the measurements Automatic or manual mode selection Advanced automatic fault tolerant temperature estimation system Advanced data management technology for virtually unlimited data storage Temperature output to PDF and print capability Full history log review capability and PDF export Graphical representation of temperature history for each sensor and statistics capability Capability to export temperature...

We glad to announce that our english online store is now available. In our eshop you can find rotary valves, industrial fans, automation & control parts, electric motors, signal converters, pulleys, measuring gauges, connecting engineering elements, and much more.


In the previous article we have seen an introduction to pneumatic conveying and the two categorizations. In a pneumatic transport line quite often a cyclone is needed in order to seperate the particles from the air, conveyed with the help of an fan .

The dust particles move along a spiral path inside the cyclone. The acting centrifugal force results in the deposition of the dust. The computation of the cyclone is performed according to the theory of Barth, Muschelknautz and Brunner. This computation method makes the following assumptions:

The largest peripheral velocity u 1...

In order to define the negative pressure at the fan , we can use the following tables:

Equivalent straight length of pipe elbows (bends) Chart for determining the air velocities

The assumed standard diameters, elbow radiuses, and equivalent straight pipe lengths of 90 o elbows (bends) are given in the table below.

Based on the values of the 90 o elbows, it is possible to estimate the equivalent straight pipe length of other angles using the following factors.

Finally, from the Moody chart, see below, we can get the Darcy-Weisbach friction factor f D as...


An important feature for classifying conveying systems is the air velocity. It allows the following categorization:

Dilute-phase conveying: with air velocities of approx. 15 – 25 m/s Dense-phase conveying: with air velocities of approx. 2 – 15 m/s

Dilute-phase conveyors are the most widely applied conveying systems in the grain milling industry. The application of dense-phase conveyors is rather rare. Dilute-phase conveyors include the conveying systems shown in the chart below.

Dilute-phase conveying offers various advantages over dense-phase conveying:...