Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Stoffübertragung"”.
-
Probability Density Function Modeling of Turbulent Non-reactive and Reactive Spray Flows
… Problem dar. Die Prozesse Turbulenz, Wärme- und Stoffübertragung und Phasenänderung müssen dazu behandelt werden. Für reagierende Stömungen müssen chemische Reaktionen berücksichtigt werden. Diese Prozesse sind stark mit einander gekoppelt und viele Aspekte dieser Prozesse sind bislang unbekannt. …
-
Kostenoptimale Gestaltung von Stoffaustauschernetzwerken mit Hilfe der erweiterten Wasser-Pinch-Methode
The process integration for the optimization of energy and material economy of chemical processes is addressed in recent international research activities. In the last years different approaches have been developed and field-proven. In the area of mass integration, which additionally leads to a …
-
Novel methods and materials in development of liquid carrier membranes : from the molecule to the process
This thesis attempts a complete coverage of theoretical and experimental approaches necessary for the development of the separation process of gases or vapours by the means of supported liquid carrier membranes based on ionic liquids (ILs). Firstly, state-of-the-art simulation software Femlab has …
-
Physikalische und numerische Simulation von Stauraumkanälen mit unten liegender Entlastung
Deterring the waste in the sewerage system and preventing water pollution during storm water events is the task of Combined Sewer Detention Tanks (CSDT). CSDTs are components of combined sewerage systems, the most-used sewerage-system in Germany. The aim is to realise an ecological en economical …
-
Stoffaustausch und Stoffanreicherung bei zweiphasigen Gegenstromverfahren
For the continuous steel production numerous procedures have been suggested. However, there are still absent investigations of single process steps to evaluate the total efficiencies and to be able to optimise them. In addition one needs models for the concentration courses of the accompanying …
-
Stofftransportvorgänge in Festgesteinsaquiferen: Analyse von Tracerdurchbruchskurven zur Identifikation eines geeigneten Mehrkontinuum-Ansatzes
Characterizing flow and transport processes in fracured porous media is an essential issue to the modeling and experimental community. This thesis focuses on the analyzis of tracer breakthrough curves in such media. The basic idea is to develop a method which allows for using tracer pulses as …
-
Numerical methods for mass transport equations in two-phase incompressible flows
In this thesis, we presented numerical methods for discretizing and solving the mass transport problem in two-phase flows. The level set method is used for capturing the time-dependent interface. The motion of the fluid is described by the two-phase Navier-Stokes equations. For the spatial …
-
Model-based experimental analysis of enzyme kinetics in aqueous-organic biphasic systems
Immobilization of biocatalysts in hydrogel beads which are suspended in organic solvents is a promising approach for the production of hydrophobic fine chemicals. Due to the superposition of mass transfer, diffusion, and enzyme reaction the rational design of such immobilizates is rather complex. …