Identifying and improving the internal and external information exchange for shipbuilding processes

To identify and improve the communication or information flow for a ship production process, this thesis provides an approach to use a Discrete Event Simulation (DES) model, based on Petri Net technique. By establishing a theoretical framework, the different simulation modelling options are analysed and based on practical requirements, a choice...

Detached Eddy Simulation applied to three-dimensional aerodynamic full car simulations in motorsport

Detached Eddy Simulation is investigated as a potential method to improve the design process in the Aerodynamic Prototype Development Department of Porsche Motorsport. Detached Eddy Simulation is a CFD method that combines the scale resolving capabilities of Large Eddy Simulation with the low cost modelling of the Reynolds-Averaged Navier-Stokes...

Improving the Overall Performance of the Warehouse Processes of Temperature-Sensitive Goods: Within the Warehouse of KLM Cargo at the Schiphol hub

A significant part of the revenue generated by KLM Cargo comes from transporting temperature- sensitive goods. Currently, KLM Cargo faces quality issues in the handling processes of these goods which may lead to significant loss in revenue, and the risk of not generating new revenue. This research focuses on the improvement of the performance of...

Forecasting the availability of flower trolleys to prevent shortages with a discrete event simulation

This research presents a method that can be used to prevent shortages of available trolleys in the floriculture supply chain. There should always be a sufficient number of trolleys available at all floriculture auction locations. However, in the current system, there are problems with availability of the trolleys and the trolleys movements are...

Lowering the Turnaround time for Aircraft component MRO services: A case study at KLM Engineering & Maintenance

In this thesis a framework is built to find flow improvement measures to lower the turnaround time for aircraft component MRO processes. This framework is tested in a case study at KLM E&M. The main research question that is answered in this research is: What flow improvement measures can be used to lower the turnaround time of components in...

Aircraft Engine Combustor Maintenance: A model to measure MRO turnaround time

This thesis involves a case-study of aircraft engine combustor maintenance at KLM E&M, which has been used as a basis to develop a discrete event simulation model that allows TAT to be measured, and the effects of changes to the main process value drivers to be successfully tested. The main research question this research sought to answer is:...

A Study on the Sloshing Motions within a Rectangular Moonpool and the Effect of Implementing Appendages: A Computational Fluid Dynamics Approach

Moonpools are vertical wells used on most offshore vessels at Huisman Equipment. The oscillations in the moonpool lead to a significant increase in resistance for vessels in transit conditions. In the concept design phase it has proven difficult to predict the moonpool behaviour, as well as the effect of implementing appendages within a long...

Exploring Commercial Applications of Natural Deep Eutectic Solvents

The aim of this thesis is to determine if Natural Deep Eutectic Solvents (NADES) can be implemented in a commercially viable process. NADES are a new class of solvents which can be considered a bio-based version of Ionic liquids and Deep Eutectic Solvents. A case study is performed on the extracting of value added compounds from orange waste....

Supply Chain Planning and Simulation at HEINEKEN: Capacity analysis of the bright beer cellar of the brewery in Den Bosch

Time Measurements of Software Cryptographic Algorithms for Real-time Transmission of Information

Abstract—In recent years, much of the information exchange is done with the use of PC’s. This increase in PC usage leads to an increase in illegal information leakage and eavesdropping. To protect the information (data) measures must be taken to ensure security. A way to enforce protection is by the application of cryptography. We have used DES...