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Modelo energético para el desarrollo de un entorno social y económico sostenible. Bases para una transición energética sostenible en la comarca Debabarrena
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)
The current energetic model is completely out-of step due to several circumstances: some technologicals, others social-economicals, as well as environmental. As a result, it is crucial to design another (or others) model, ...
Remaining useful life estimations applied on the sizing and the prognosis of lithium ion battery energy storage systems
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)
The present thesis develops an accurate sizing tool for the most relevant lithium ion battery energy storage system applications considering the aging and the remaining useful life. The developed tool involves firstly, the ...
Electrochemical model-based advanced battery control systems
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)
Nowadays energetic scenario is changing, improving the actual energy mix, and using cleaner and more sustainable energy generation and consumption methods. Renewable energies are key within this context for a more ...
Aerodynamic characterization of transitionally-operating airfoils under a set of flow conditions going from ideal to real configurations
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2021)
Applications in which airfoils operate under transitional flow conditions are widespread, comprising micro- and nano-aerial-vehicle wings, portions of mid- and large-scale wind-turbine blades or turbomachinery vanes. The ...
Hierarchical microstructure design and cast processing route of a modified TNM gamma TiAl alloy
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2021)
Gamma titanium aluminides following the β-solidifying pathway, are intermetallic alloys that have the potential to replace heavier materials in high temperature structural applications, such as aerospace and aeronautics. ...
Pouch cell fabrication process optimisation through physico-chemical modelling and characterisation
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2020)
The world is facing an energy revolution, seeking more sustainable based energy solutions while the global energy demand is increasing. New trends in energy consumption and new applications have arisen in which energy ...
Desarrollo de componentes estructurales mediante impresión 3D de composite de fibra continua para la absorción de energía en caso de impacto
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2021)
Broadening knowledge about future materials and manufacturing processes will serve to develop high value-added products that respond to major societal challenges. Additive manufacturing (AM) is one such process and ...
Determinación de las propiedades termofísicas y propiedades de transporte en mezclas binarias líquidas bajo condiciones de alta presión
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2021)
In this doctoral thesis, mass transport phenomena have been analyzed. These phenomena have becomed a central aspect to study due to their wide application in different fields. In order to experimentally determine properties ...
Experimental assessment of scale-effects on the aerodynamic characterization of a transitionally-operating airfoil working under clean flow conditionsExperimental assessment of scale-effects on the aerodynamic characterisation of a transitionally-operating airfoil working under clean flow conditions
(Elsevier, 2022)
Wind tunnel tests are carried out upon a NACA0021 airfoil subjected to transitional Reynolds numbers. Transitionally-operating airfoils show a high sensitivity to external conditions and pose relevant measurement issues ...
Partial Power Converters for DC-DC Applications
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2023)
This thesis studies partial power processing (PPP) based architectures for DC-DC applications. This type of solutions aim to reduce the power processed by the power converter. This way, the power losses and the volume of ...
Control of interlinking converters for hybrid AC/DC power systems
(Mondragon Unibertsitatea. Goi Eskola Politeknikoa, 2023)
Electrical power plays a very important role in today’s society, but the necessity to reduce the greenhouse gas emissions requires to shift the classical fossil fuel-based power generation towards a renewable based model. ...
Modular Battery Systems’ Accessible Energy Analysis
(2022)
One of the main concerns regarding traditional battery energy storage systems (BESS) is how to solve issues related to cell inhomogeneities. This problem commonly ends up reducing the accessible energy level, especially ...
Multiphysics modeling and experimental validation of heat and mass transfer for the vacuum induction melting process
(Elsevier, 2024)
Vacuum induction melting is crucial in casting nickel-based superalloy components, ensuring excellent properties for aero-engine applications. Precise melting temperatures are vital for achieving optimal metallurgical ...
Effect of liner thermal properties and liner pre-cooling on the thermal management of fast-filling of hydrogen tanks
(Elsevier, 2023)
In transportation applications, filling high pressurised hydrogen tanks within a few minutes implies a fast and large temperature increase that can compromise the structural integrity of the storage system and the safety ...
PEM motako erregai-pilen zenbakizko analisia eta balioztatze esperimentala
(Udako Euskal Unibertsitatea (UEU), 2023)
Gaur egungo aldaketa klimatikoa dela medio, energia elektrikoa lortzeko alternatiba berri ugari sortzen ari dira. Horien artean erregai-pilek abantaila suposatzen dute hainbat esparrutan. Ikerketa honetan gaur egun garapen ...
Design and characterization of a novel lightweight multicomponent alloy Al58Zn28Mg6Si8
(Elsevier, 2023)
This paper presents a novel multicomponent alloy Al58Zn28Mg6Si8, with a density of 3.46 g/cm3, which incorporates concepts from high entropy alloys. The optimum alloy composition was determined using the CALPHAD approach ...
Impact and notched strength of multiaxially reinforced out of die UV cured pultruded profiles
(Wiley, 2024)
The present paper highlights the benefits of multiaxially reinforced profiles manufactured by out of die ultraviolet (UV) cured pultrusion. Thanks to the low pulling forces inherent to this technology, we could manufacture ...
A holistic optimization tool for the design of power take-off systems in realistic wave climates: The Wells turbine case
(Elsevier, 2023)
The growing demand of energy coupled with the worldwide commitments in favor of renewable technologies turns marine renewable sources especially attractive, including wave energy. In particular, the oscillating water column ...
A comparison between continuous and hairpin windings for electric traction drives
(IEEE, 2023)
Present change in mobility to vehicle electrification involves highly exigent requirements on product performance and production technologies. In the manufacturing of electric machines, the stator winding is the most ...
Effect of the crucible composition on the Inconel 718 vacuum induction melting process efficiency
(Elsevier, 2023)
Nickel-based superalloys are widely employed to manufacture aero-engine turbines due to their high mechanical strength and resistance to corrosion and creep. Vacuum Induction Melting (VIM) is a suitable manufacturing ...