Multimodal city logistics using waterways in Amsterdam: proof-of-concept of a two-echelon distribution network

This study focuses on two-echelon synchronized logistics in a multimodal distribution network for integrated road-based and waterborne transportation motivated by practical city logistics challenges. To evaluate the feasibility and requirements of a multimodal transport system as a potential future logistics solution for supplying hotels,...

Fleet management for maintenance of offshore wind farms: a simulation model

During the lifetime of an offshore wind farm, the operation and maintenance (O&M) costs account for a large portion of the total expenses. This is mainly caused by the high cost of vessels. In order to increase the competitiveness of offshore wind compared to onshore wind and other renewable energy sources, it is essential to decrease the...

Machine and deep learning models for vehicle routing problems: a literature review

Vehicle routing problems (VRPs), a generalization of the traveling salesman problem, are extensively studied combinatorial optimization problems for their practical application. Many solution methods, e.g., exact and heuristic algorithms, have been proposed in the last few decades but require relatively much computation time due to the NP-hard...

Design and characterization of test facility for large angle diffusers

In industry, fired heaters are used to heat process fluids and to generate steam. The efficiency of these devices is increased with air preheating. Gnerally, the flow through the air preheaters is driven by a centrifugal fan, via forced draft. Through a widening transition duct (large angle diffuser), air flows from the fan towards the air...

Learning and Competitive Bevaviour in District Heating Networks

To decrease the dependence on fossil fuels and strive for a more sustainable heat provision in the Netherlands, district heating is a solution. Although district heating networks are not novel, the Dutch ministry of Economic affairs desires a change in the district heating sector: ‘open’ district heating networks in which competition between...

Sediment mixing coefficient behaviour for different wave, current and sediment characteristics

During the last years, experimental research in the Large Oscillating Water Tunnel (L. O. W. T.) and the Vinje basin (both of Delft Hydraulics) is aimed at the understanding and mathematical description of the process of near-bed sediment transport induced by non-breaking waves. The understanding of the near-bed sediment dynamics is important...