Aligning logistics with MRO to improve spare parts availability: A case study at KLM Engineering & Maintenance

Aircraft component maintenance, repair, and overhaul (MRO) outsourcing is a rather new phenomenon. Nowadays, component support solutions that are flexible with predictable cost are pursued. In other words, the time to restore and cost of MRO are aimed to be minimised. This research project is collaboration with one of the worlds leaders in...

Seizing the opportunities from the energy transition: A study of the Port of Rotterdam

To continue the success of the Port of Rotterdam (PoR) in the future, a transition to a sustainable industry is essential. Though this is easier said than done. The energy transition involves a variety of initiatives which are at the same time highly dependent on each other. Whilst the increasing scarcity of available area and resources result...

Multi-robot parcel sorting systems: Allocation and path finding

The logistics industry is being modernized using information technology and robots. This change encompasses a new set of challenges in warehouses. Recently, some companies have started using robot fleets to sort products and parcels. This thesis studies those systems, and researches the combinatorial problems that arise within them. Three main...

Decision support framework for the allocation of production processes within multi-facility machinery manufacturing organizations

Improved Flexible Runway Use Modeling: A Multi-Objective Optimization Concerning Pairwise RECAT-EU Separation Minima, Reduced Noise Annoyance and Fuel Consumption at London Heathrow

A minimization of disturbance caused by aircraft noise events and a reduction of fuel consumption during the initial and final phase of flight. These are the two objectives that play an important role in the Flexible Runway Allocation Model. By taking into account fuel consumption alongside noise annoyance, this model enables to analyze and...

Gas condensate allocation based on an equation of state model

The current allocation method for gas condensates in the offshore gas fields (of Shell and partners) of the Southern North sea is unreliable. The allocated values of the gas condensates are physically not possible. The current allocation method shows condensate gas ratios that are extremely varying (and sometimes increasing) over time, while it...

Tailored SID & Profile Allocation for Amsterdam Airport Schiphol

Currently, only one Standard Instrument Departure (SID) track and one flight procedure is used per runway departure fix combination. In contrast to tailored arrivals, the potential benefit of tailored departures has been left relatively undiscovered. The research objective is to quantify the potential benefit of tailored SID-s and profile...

Flexible Arrival & Departure Runway Allocation Using Mixed-Integer Linear Programming: A Schiphol Airport Case Study

Runway capacity of a complex runways system can be limited by several factors. Currently, the runway usage at Amsterdam Airport Schiphol (AAS) is described by a preference list established by multiple stakeholders. It makes an important trade-off between minimizing noise exposure to the environment and maximizing capacity. The existing model...

Using Dynamic Seat Allocation to Improve Aircraft Comfort

Inspired on an ergonomic study on the in- and egress of persons with reduced mobility in aircraft I developed an algorithm to improve the comfort of individual passengers by allocating them specific seats. The algorithm uses information which is already at the disposal of airlines to specify certain groups of passengers. Based on their group,...