Synchronized optimization of wind farm start-stop and yaw control based on 3D wake model

In existing wind farms, the overall power output can be increased through yaw control. However, the cooperative control of start/stop, yaw and turbines positions is often overlooked, leading to wake superposition to downstream wind turbines and suboptimal power output. This paper proposes a synchronized optimized method that considers start...

Design & Validation of a 3D-printed Heat Exchanger Manifold

Metal additive manufacturing has enabled great diversity and design freedom in heat exchanger design. However, these benefits cannot be adequately realised without optimizing its ancillary components as well, specifically the inlet and outlet manifolds. Optimizing the manifolds can significantly improve the flow distribution inside the heat...

Automation and Optimization of Computer-Assisted Surgery Planning of Corrective Osteotomies for Forearm Malunions

Corrective osteotomies are the indicated treatment for complex forearm malunions. The use of 3D computer-assisted preoperative planning offers significant advantages, such as improved comprehension of the multiplanar deformity and high accuracy. However, the clinical application of computer-assisted preoperative planning methods is limited due...

A Quantitative Comparison of the Material-Use for a Form Found and a Conventional Concrete Pedestrian Bridge

Concrete is the most used building material in the world. Its success can be linked back to its mouldability, durability and low cost. Unfortunately, current conventional concrete pedestrian bridge designs do not benefit from these key features and still require bulky shaped cross-sections, whereby part of the concrete does not contribute to the...

Designing and optimizing an aerospike micro-nozzle for the sub-mN range: A numerical study

Micro-propulsion technology is under rapid development and considerably extends the mission capabilities of small spacecraft. However, the flow in conventional nozzles on a microscale is relatively viscous, which, combined with the bounding nozzle walls, leads to low efficiencies. Aerospike nozzles, on the other hand, offer...

FSI Analysis and Optimization of 3D beam structures

Aiming to enhance the performance of the industrial design process, structural optimization techniques have been proposed as an alternative to traditional design and optimization techniques.<br/>They own the potential of achieving an optimal distribution of the material through the design domain, thus reducing waste loss and weight, and...

Multiple patterning with process optimization method for maskless DMD-based grayscale lithography

We report a multiple patterning approach utilizing digital-micromirror-device (DMD)-based grayscale lithography, providing a solution to improve fabrication accuracy for entire target three-dimensional structure. Because DMD-based lithography system consists a projection lens system, better resolution can be obtained around focal position...

Optimization methods for 3D lithography process utilizing DMD-based maskless grayscale photolithography system

Digital Micromirror Device (DMD)-based grayscale lithography is a promising tool for three dimensional (3D) microstructuring of thick-film photoresist since it is a maskless process, provides possibility for the free-form of 3D microstructures, and therefore rapid and cost-effective microfabrication. However, process parameter determination...

Development of three dimensional PV structures as shading devices for a Decentralized Facade Unit of the Future.

The first part of the Thesis consists of a research on topics related to Solar Energy, PV technologies and Materials used as part of active solar structures (from the active materials to substrates) as well as their integration in the form of custom shapes. The analysis of these topics reveals the potential of new and emerging PV technologies,...