Simulation Verification and Optimization of a Vertical Axis Wind Turbine using CFD

In this research computational fluid dynamics (CFD) is used to model a vertical axis wind turbine. Well known turbulence models | i.e. the k-epsilon and k-omega SST model | are used and compared in their performance against each other and a set of experimental data. The formal research question is "What models are available for the simulation of...

Improvement of road traffic sustainability by implementation of priority weights for trucks in predictive signalized intersection control

In the European Union Road freight transport volume is expected to grow 78% between 2000 and 2030, which results in more trucks on the road network. The worldwide estimated trend shows an increase of 150 million freight vehicles and an increase of 240 million passenger vehicles. The growth of both vehicle classes will have a major impact on the...

Aircraft Specific Carbon Emission Calculations For Air Freight Transportation: A Systematic Approach to Model Development to Promote Sustainable Purchasing and Green Market Positioning at PostNL

Commercial greenhouse gas emissions from aviation are proliferating, as is the concern among freight carriers to minimize their carbon footprint. From a corporate point of view, the United Nations International Civil Aviation Organization ( ICAO) expects aircraft emissions to triple by 2050, with aviation accounting for 25% of the world's carbon...

Choosing a sustainable, economical energy supply system, considering all operational variables of an autonomous submarine dredger: A study as part of the development of the ALERD, which will serve as sustainable coastal maintenance in the service of The Netherlands

The Autonomous Low Energy Replenishment Dredger (ALERD) strives to revolutionize the dredging world. The ALERD operates autonomously underwater, which saves energy during the dredging process and transit. Autonomous underwater operation drives the need of alternative energy facilities. However, due to the energy savings of dredging, alternative...

The potential of optimization and simulation to better match supply and demand in shared mobility systems

Shared mobility systems allow individuals to rent vehicles on an as-needed basis. The benefit of this is that these individuals does not have to buy the vehicle themselves and only pay for its use. These shared mobility systems are becoming increasingly popular due to the fact that sharing vehicles means fewer are required and fewer resources...