Modeling and simulation of intrafusal muscle fiber using a multi-sarcomeric model

Muscle spindle is an organ of proprioception that plays an important role in neuro-muscular control of the human joints. It is composed of intrafusal fibers, the mechanical properties of which determine the afferent response of the spindle. Intrafusal fibers are not homogenous: they are composed of many sarcomeres, have localized fusimotor...

Improving the purchase, nesting and order release process of a batch shop production process

At the sheet metal department at Fokker Aerostructures a high variety of low demand sheet metal products are produced for use in different aerospace assembly programs. The production process operates in a batch shop style of operations in order to cope with the high-variety and low-volume nature of the product mix. In order to ensure that the...

Modelling the absorption of binary mixtures in plate heat exchangers

Ocean thermal energy conversion (OTEC) is currently developed as a clean and sustainable energy technology for offshore application in tropical areas. The technology shows promising possibilities in combination with the Kalina cycle, a thermodynamic cycle for the generation of energy from low temperature difference heat sources using a working...

Two-part modelling format for modelling marine diesel engines in joules

The modelling approaches can go to two extremes: fully data-oriented and fully process oriented. Modelling for diesel engines is not excluded. Usually data-oriented is computational friendly and accurate and the latter is detail and flexible. A high-speed diesel engine model is missing in project JOULES. The objective of this work is to develop...

Modelling of Three-phase Power Converters: A fundamental port-Hamiltonian approach

The port-Hamiltonian modelling and control of power converters has been the topic of a number of studies for the past couple years. However, the modelling of three-phase converters from fundamental port-Hamiltonian principles has been an unexplored direction. This study focusses on deducing a modelling procedure to model a three-phase rectifier...

On Cost Reduction in Unilever's Supply Chain and the Interpretation and Implementation thereof

Unilever is the market leader in the fast moving consumer goods industry. It is constantlyseeking ways to effectively use its resources. The company approached me and requested a decision tool which could determine the 'switch-over' point between single and double stacking of pallets (the so-called stacking configuration). The model was to...

Direct Internal Methane Steam Reforming in Operating Solid Oxide Fuel Cells: A kinetic modelling approach

Direct Internal Reforming (DIR) on Solid Oxide Fuel Cell (SOFC) anodes is often considered for fuel cells systems utilising carbon based fuels. Methane Steam Reforming (MSR) is one of the most extensively studied types of DIR. The hydrogen formed by the MSR reaction can be electrochemically oxidised in the fuel cell to produce electricity, while...

A Modelling Tool for Dynamic Simulation of Solution Crystallization Processes

The design of current industrial crystallizers is strongly focused on optimisation of known types of crystallization equipment. To get a better control over the physical events governing crystalline product quality the TU Delft started with the development of a task based design (TBD) strategy, which is an example of a phenomena based approach....

A method for modelling operator behaviour applied to the NewTranspall microworld

Violation of safety procedures by operators is an important cause of accidents. To prevent violations effectively a thorough understanding of the operators' decision making process is required. This research proposes a method to create a personal model that predicts the action the operator would take based on the state of the system. We strive...