Energiedissipation und Energieflüsse während des Tablettiervorganges

The tableting process causes a temperature increase due to dissipation of energy. Therefore, with time the temperature of the tablets and the tablet press increases. Depending on the calculated tablet temperature, this temperature increase is discussed for different compression forces and lubricant concentrations. Two different measurement techniques are presented and compared.     

Optimierung in der Energiewirtschaft: lokale vs. globale Optimallösungen

The application of optimizations methods is an essential part of today's energy system management. Power plants need to be operated optimally and need to adapt their production according to varying demands. At par with simulation models, thus optimization is of ever more increasing importance in today's operations. This article deals with two examples which exemplify the additional value that modern mathematical optimizations methods can provide with provably good, respectively globally optimal solutions.     

Vorbemessung von Aussteifungselementen für Starkbebenbeanspruchungen

Ausgehend von den positiven Erfahrungen mit steifen Gebäuden in Starkbebengebieten wird auf der Basis der türkischen Erdbebennorm ein Vorschlag zur Vorbemessung von Aussteifungselementen für erhöhte seismische Beanspruchungen ausgearbeitet. Die entwickelten Gleichungen beschreiben auf der Basis von wenigen Kenndaten wie Grundbeschleunigung und Betonzugfestigkeit notwendige Wandquerschnittsflächen bzw. Wandlängen in den jeweiligen Geschossen. Ein Beispiel für einen typischen Gewerbebau verdeutlicht den Rechenablauf der Vorbemessung. Preliminary Design of Bracing Elements for Heavy Earthquake Loads Due to the positive experience with stiff buildings in areas of strong earthquakes, a proposition for the preliminary design of the bracing elements will be prepared based on the Turkish earthquake regulation. The developed equations, based on few characteristics like basic acceleration and concrete tensile strength, will describe the necessary cross sectional areas of the wall, respectively the wall length of each level. One example for a typical commercial building will clarify the calculation process of the preliminary design.