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Laser powder bed fusion of steels : case studies on microstructures, mechanical properties, and notch-load interactions
(Lappeenranta-Lahti University of Technology LUT, 2022-11-10)
Additive manufacturing has evolved over the last few decades from utilising a prototyping approach to favouring a fabrication method. Consequently, this technology has become recognised as a potential replacement for ...
Global climate as a commons — from decision making to climate actions in least developed countries
(Lappeenranta-Lahti University of Technology LUT, 2022-12-09)
The international battle against climate change requires action from all parties of the United Nations Framework Convention on Climate Change including the rapidly developing low-income countries. Most of the least developed ...
Coupling Monte Carlo neutronics with thermal hydraulics and fuel thermo-mechanics
(Lappeenranta-Lahti University of Technology LUT, 2022-11-30)
This work aims to improve the coupled calculations required for the modeling of nuclear reactors by producing more advanced computational tools.
The study applies more advanced computational tools to more detailed ...
Heuristic-Based Packetized Energy Management for Residential Electricity Demand
(Lappeenranta-Lahti University of Technology LUT, 2023-06-07)
The unprecedented growth of distributed energy resources (DERs) has brought limitless opportunities to reshape the energy infrastructure and instigate urgent reforms for technoeconomic advancements, business models, ...
Analysis and design of carbon dioxide utilization systems and infrastructures
(Lappeenranta-Lahti University of Technology LUT, 2022-11-04)
Carbon dioxide (CO2) is an important chemical compound for life on earth, as it enables photosynthesis in plants and other organisms. It is also commonly utilized in many applications and products, such as carbonated drinks, ...
Fast and accurate simulation of fluid power circuits in the presence of small volumes using advanced methods and models for numerical stiffness elimination
(Lappeenranta-Lahti University of Technology LUT, 2023-06-02)
The modeling and simulation of fluid power systems are essential parts of the real-time simulation of virtual prototypes of mobile working machines. In several cases, in the dynamic simulation of such fluid power systems, ...
Laser and hybrid welding of high-strength structural steels
(Lappeenranta-Lahti University of Technology LUT, 2023-06-02)
Laser and laser-arc hybrid welding processes are recognized as key joining methods in many industrial fields such as light and heavy machinery, ship-building and the automotive industry. In the early days of laser welding, ...
Improving the design of cellular networks beyond 5G for smart grids
(Lappeenranta-Lahti University of Technology LUT, 2023-09-22)
In the last decade, wireless technologies have emerged to support vertical applications. For instance, many wireless communication technologies are becoming key enablers of specialized smart grid applications. However, ...
Reduction of non-circulating bearing currents by electrical machine design
(Lappeenranta-Lahti University of Technology LUT, 2023-09-22)
Electrical machines and drive systems play a crucial role in industrial processes and everyday life. Electrical drive systems that are capable of operating in the variable speed mode allow applying electric motors for the ...
Advances in Optimal Design of Shapes and Processes by Computational Fluid Dynamics
(Lappeenranta-Lahti University of Technology LUT, 2023-10-09)
In many engineering applications, it is desirable to design objects which display good performance characteristics when interfacing with fluid flow, either internal or external to the objects. For example, an aircraft wing ...