Results 11 to 20 of about 4,727,589 (239)
EnergiesDual active bridge (DAB) converters are widely used in DC microgrids because of their superior bidirectional energy flow regulation capability and characteristics, such as wide voltage gain and zero-voltage switching (ZVS).
Yun Zhang +4 more
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Numerical study and experimental validation of a Roots blower with backflow design
Engineering Applications of Computational Fluid Mechanics, 2018 A three-dimensional computational fluid dynamics (CFD) model of a Roots blower with a backflow design was established to analyse the effects of the backflow on the Roots blower's performance.
Shu-Kai Sun +3 more
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A combination of electric supercharger and Miller Cycle in a gasoline engine to improve thermal efficiency without performance degradation [PDF]
Case Studies in Thermal Engineering, 2019 Miller cycle makes the expansion ratio larger than effective compression ratio by early or late closing intake valves thereby improving the thermal efficiency of gasoline engines at the risk of power degradation.
Bin Chen +3 more
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Experimental investigation on backflow of power-law fluids in planar fractures
Physics of Fluids, 2021 In hydrofracturing, we model the backflow of a non-Newtonian fluid in a single flat-walled fracture of planar geometry and support our conceptualization with laboratory experiments. We consider a power-law fluid, a spatially homogeneous fracture aperture, and its variation in time depending on the internal fluid pressure and the elastic relaxation of ...
A. Lenci +3 more
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Slip Backflow of Polymers in Elastic Fractures for Subsurface Heat Recovery
Energies, 2023 This research delves into the complexities of backflow phenomena in finite-length and flat-walled fractures with elastic walls, specifically focusing on power-law fluids, whose shear-thinning behavior distinguishes them from Newtonian fluids.
Alessandro Lenci +3 more
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IET Renewable Power Generation, 2021 LCL‐type resonant dual‐active‐bridge (LCL‐DAB) DC–DC converters have more significant advantages in eliminating backflow power and achieving higher voltage gain compared with traditional dual active bridge (DAB) DC–DC converters. Therefore, LCL‐DAB DC–DC
Xiaoqiang Li +4 more
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Model predictive control for DAB under extended‐phase‐shift considering components uncertainty
IET Power Electronics, 2023 For the dual active bridge (DAB) DC‐DC converters, parameter uncertainty (circuit parameters, input and/or load perturbations) affect their performance, such as the dynamic performance and backflow power.
Yongsheng Fu +2 more
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Applied Sciences, 2021 In this study, the entropy theory was used as the evaluation standard of energy dissipation, and the effect of backflow clearance (the gap between motor rotor and motor shell) on energy characteristics of a full tubular pump was investigated by 3D ...
Fan Meng, Yanjun Li, Ji Pei
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A predictive control method for reducing power backflow in DC/AC matrix converter
Journal of Physics: Conference Series, 2021 Abstract In recent years, DC/AC matrix converter with higher power density have become an attractive alternative to traditional voltage source converters. The traditional PI control has been employed to achieve accurate control, but its dynamic response and stability need to be improved.
Zhipeng Xia, Ping Jin, Ling Chang
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Applied Sciences, 2022 In vehicle-to-grid (V2G) applications, dual active bridge (DAB) converters are commonly used as the power interface because they offer high efficiency, galvanic isolation, and bidirectional power flow. For the DAB control strategy, phase-shift control is
Thanh Nhat Trung Tran +2 more
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