Exploration of a Reverse Turbo-Brayton Cryocooler for Carbon Neutral Aeronautical Applications: Integrated Cryocooler Design and Tank Modeling for Cryogenic Liquid Hydrogen in Long Range Flight

Climate change is a pressing issue. Hydrogen aircraft are an excellent alternative to current kerosene aircraft, and appear to be the most viable long-term solution for net-zero flight. One of the main challenges for hydrogen aircraft is to sustain a low boil-off rate. This research explores the solution of active cooling of the LH2 mixture in...

The effect of empathy in collaboration on project performance: Steering on empathy to improve project performance through client-contractor collaboration in the first phase of the two-phase model

Construction projects have become increasingly complex, requiring effective management strategies to navigate challenges related to project contexts, interdisciplinary integration, and procurement processes. The Dutch Ministry of Infrastructure and Water Management (Rijkswaterstaat) has introduced the two-phase model to address these...

Developing a framework to improve the collaboration in the first phase of the two-phase model: A study on the collaboration between the contractor and client and the contribution of a collaborative identity

A trend towards a more relational type of contracting can be noticed in the Dutch infrastructure industry. These so-called relational project delivery models are supposed to deal with the current challenges of regular cost and time overruns, the growing demand and the adverse relationship between contractor and client in traditional projects,...

Two-phase modelling for sediment water mixtures above the limit deposit velocity in horizontal pipelines

In dredging applications, deep sea mining and land reclamation projects typically large amounts of sediments are transported through pipes in the form of hyper concentrated (40% sediment or more) sediment-water mixtures or slurries. In this paper it is investigated how well a generic Euler-Euler CFD-model is capable to model velocity,...

Simulation of macroscopic behavior of a self-compacting mixture based on DEM

Since the early 20th century, the necessity of modeling and monitoring fresh concrete behavior has been recognized by the industry with the objective to ensure adequate mechanical properties and a proper durability of concrete structures. Due to the rapid development of computer technology, the applications of computational simulation tools in...