Searched for: author%3A%22Wu%2C+Y.%22
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Giri Ajay, A. (author), Morgan, Laurence (author), Wu, Y. (author), Bretos, David (author), Cascales, Aurelio (author), Pires, Oscar (author), Ferreira, Carlos (author)
This article presents a comparison study of different aerodynamic models for an X-shaped vertical-axis wind turbine and offers insight into the 3D aerodynamics of this rotor at fixed pitch offsets. The study compares six different numerical models: a double-multiple streamtube (DMS) model, a 2D actuator cylinder (2DAC) model, an inviscid free...
journal article 2024
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Wu, Y. (author), Liu, Daoyin (author), van Wachem, Berend G.M. (author), van Ommen, J.R. (author)
Nanoparticles are usually fluidized as agglomerates, which are in dynamic states of agglomeration and fragmentation. It is critical to consider the size distribution of agglomerates in modeling of the fluidization of nanoparticle agglomerates. In this article, the fluidization behavior of nanoparticle agglomerates is investigated using a two...
journal article 2024
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Wu, Y. (author)
Catalysts are often used in challenging chemical reactions to accelerate the reaction rate, increase reaction efficiency, reduce energy consumption, and minimise waste production. In biocatalysis, enzymes or whole cells are used as catalysts with the advantage of reactivity, selectivity and mild reaction condition over chemocatalysis. Nowadays,...
doctoral thesis 2023
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Domestici, C. (author), Wu, Y. (author), Hilberath, T. (author), Alcalde, Miguel (author), Hollmann, F. (author), Macchioni, Alceo (author)
Unspecific peroxygenases (UPOs) are promising biocatalysts for oxyfunctionalisation reactions, owing to their simplicity of handling, stability and robustness. A limitation of using UPOs on a large scale is their deactivation in the presence of even rather modest concentrations of H<sub>2</sub>O<sub>2</sub>, requiring a constant and...
journal article 2023
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Wu, Y. (author), Paul, C.E. (author), Hilberath, T. (author), Jongkind, E.P.J. (author), Zhang, Wuyuan (author), Alcalde, Miguel (author), Hollmann, F. (author)
Utilisation of fatty acids generally relies on pre-existing functional groups such as the carboxylate group or C=C-double bonds. Addition of new functionalities into the hydrocarbon part opens up new possibilities for fatty acid valorisation. In this contribution we demonstrate the synthetic potential of a peroxygenase mutant AaeUPO−Fett for...
journal article 2023
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Zhou, Xiaochuan (author), Ganeshpure, D.A. (author), Soeiro, Thiago B. (author), Ghaffarian Niasar, M. (author), Wu, Y. (author), Vaessen, P.T.M. (author)
In order to damp the resonance in the MMC-based Arbitrary Wave shape Generator (AWG) used for high voltage testing, an active damping control methodology is proposed in this paper instead of the passive damping with an arm resistor. It is vital to ensure the system’s stability when such an active damping closed loop control is implemented....
conference paper 2023
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Wu, Y. (author), Qin, Z. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
With the great emphasis from the international standard-setting community on the so-called supra-harmonics emissions (2-150 kHz), there are increasing research efforts in this noise level identification, measurement, standard setting and mitigation. The periodic variable switching frequency PWM method, which is known as VSFPWM, can reshape the...
conference paper 2023
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Guan, H. (author), Wu, Y. (author), Qin, Z. (author), Bauer, P. (author)
The electric vehicle (EV) market is expanding rapidly. However, the main barriers to EV adoption are high vehicle costs, range issues, and charging infrastructure. Meanwhile, energy storage systems (ESS) appear as a promising solution to preventing grid overload during charging and reducing infrastructure costs. In this paper, the integration of...
conference paper 2023
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Wu, Y. (author), Qin, Z. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
The sinusoidal Triangular-Current-Mode (S-TCM) method has been proposed in the AC/DC power-factor-correction (PFC) converter to achieve the zero-voltage-switching (ZVS) which can lead to both, high efficiency operation and a high power density design. Nevertheless, the necessary wide range variation of the sinusoidal switching frequency...
conference paper 2023
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Wang, L. (author), Qin, Z. (author), Wu, Y. (author), Bauer, P. (author)
Reinforcement of the legacy grid infrastructure will be very costly and thereby unrealistic. Consequently, weak grid connection of electric vehicle (EV) chargers will sooner or later be the case. It may however bring instability issues since the EV chargers that can work well in strong grid conditions usually do not fit the weak grid...
conference paper 2023
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Wu, Y. (author), Paul, C.E. (author), Hollmann, F. (author)
This review article critically compares two widely used types of catalysis, chemo- and biocatalysis, and provides insights on their greenness according to specified parameters. A comparative analysis of the environmental impact of chemo- and biocatalytic oxyfunctionalisation reactions based on published experimental data reveals that both...
journal article 2023
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Gomez de Santos, Patricia (author), González-Benjumea, Alejandro (author), Fernandez-Garcia, Angela (author), Aranda, Carmen (author), Wu, Y. (author), But, A. (author), Molina-Espeja, Patricia (author), Zhang, W. (author), Hollmann, F. (author)
The hydroxylation of fatty acids is an appealing reaction in synthetic chemistry, although the lack of selective catalysts hampers its industrial implementation. In this study, we have engineered a highly regioselective fungal peroxygenase for the ω-1 hydroxylation of fatty acids with quenched stepwise over-oxidation. One single mutation near...
journal article 2023
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Ali, A.Z. (author), Wu, Y. (author), Doekhi-Bennani, Y. (author), van der Hoek, J.P. (author)
The presence of organic micro-pollutants (OMPs) in wastewater treatment effluents is becoming a major threat to the water safety for aquatic and human health. Photo-electrocatalytic based advanced oxidation process (AOP) is one of the emerging and effective techniques to degrade OMPs through oxidative mechanism. This study investigated the...
journal article 2023
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Wu, Y. (author), Xu, J. (author), Soeiro, Thiago B. (author), Stecca, M. (author), Bauer, P. (author)
Variable switching frequency PWM (VSFPWM) modulation can be advantageously implemented in industrial applications, such as renewable energy, motor drives, and uninterrupted power supply (UPS) systems, to reduce the injected current harmonic amplitudes, to suppress audible noise, and to improve semiconductor power efficiency. In this article,...
journal article 2022
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Xu, J. (author), Soeiro, Thiago B. (author), Wu, Y. (author), Gao, Fei (author), Wang, Y. (author), Tang, Houjun (author), Bauer, P. (author)
A three-phase buck-type rectifier features a step-down ac-dc conversion function, which is considered as a prominent solution for electric vehicle chargers and telecommunication systems integrated to the grid above 380 V line to line. However, traditional solutions for those applications employ cascaded architectures with an ac-dc boost-type...
journal article 2022
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Wu, Y. (author), Pottgiesser, U. (author), Quist, W.J. (author), Zhou, Qi (author)
Industrial heritage is among the products of modern urban development, and the influencing factors of its regeneration and development are often complex. Due to different national conditions, the research progress and approaches in industrial heritage reuse in China are different from other countries. While industrial heritage sites in Europe...
journal article 2022
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Sun, Jian (author), Wu, Y. (author), Soeiro, Thiago B. (author), Qin, Z. (author), Bauer, P. (author)
An efficient, compact and lightweight three-phase AC-DC power factor correction (PFC) converter becomes a necessity for electric vehicles (EVs) On-board chargers (OBCs) in conventional grid-to-vehicle (G2V) and vehicle-to-grid (V2G) charging methods. The commercially available OBCs have very limited power density despite the moderate efficiency...
conference paper 2022
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Lan, Dun (author), Wu, Y. (author), Soeiro, Thiago Batista (author), Granello, P. (author), Qin, Z. (author), Bauer, P. (author)
This paper presents the study of a 100kW electric vehicle (EV) fast charger based on a 12-pulse rectifier cascaded with two buck-type DC-DC converters. The proposed circuit operates with a triangular current shaping method which considerably improves the current harmonics performance of the system. The studied circuit is particularly suited...
conference paper 2022
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Qiang, Rui (author), Wu, Y. (author), Soeiro, Thiago Batista (author), Granello, P. (author), Qin, Z. (author), Bauer, P. (author)
This paper proposes a solution to the circuit topology of heavy-duty electric vehicle (HDEV) chargers. In light of the original hybrid rectifier, a new unidirectional Input-Parallel-Output-Series (IPOS) three-phase hybrid rectifier is proposed and analyzed. The IPOS topology is advantageous at ultra-high power rating to interface the next...
conference paper 2022
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Shekhar, A. (author), Soeiro, Thiago B. (author), Wu, Y. (author), Bauer, P. (author)
DC links with back to back voltage source converters are usually built alongside the existing medium voltage ac distribution grids for infrastructure reinforcement. The distribution network operators need to run multiple of such parallel ac and dc links between two substations at optimal efficiency. This article shows that the active power...
journal article 2021
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