Results 11 to 20 of about 6,020,339 (245)
Boiling two-phase pressure drop in small diameter tubes [PDF]
, 2007 An experimental study of two-phase pressure drop in small diameter tubes is described in this paper. Stainless steel tubes of internal diameter and length of 4.26 mm, 500 mm and 2.01 mm, 211 mm were used. The working fluid was R134a and the range covered
Huo, X +4 more
core +6 more sources
Drop deformation in stokes flow through converging channels [PDF]
, 2009 This work presents an application of a direct BEM formulation for drop deformation and interaction in Stokes flows through converging channels.
Wrobel, LC, Das Bhaumik, CL, Soares, D
core +6 more sources
Zhongguo dianli, 2023 The doubly-fed induction generator (DFIG) can participate in the system frequency modulation by releasing the kinetic energy stored in the rotor, but it may cause a secondary frequency drop when the speed is recovered, which is adverse to the frequency ...
Jingjing ZHAO +4 more
doaj +1 more source
Cooperative Synthetic Inertia Control for Wind Farms Considering Frequency Regulation Capability
Frontiers in Energy Research, 2021 To fully utilize the frequency regulation (FR) capability of wind turbines (WTs) and to avoid a secondary frequency drop caused by the rotor speed recovery, this paper firstly proposes an FR capability evaluation method for wind farms based on the ...
Qiaoming Shi +6 more
doaj +1 more source
Frontiers in Energy Research, 2022 Large-scale wind power connected to the grid efficiently reduces fossil fuel consumption, but extremely decreases grid inertial and increases frequency regulation pressure on the grid.
Chao Liu +4 more
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Adaptive droop control strategy for wind turbines based on ROCOF and rotor kinetic energy
电力工程技术, 2023 The frequency stability of the wind power grid-connected system may be improved by the participation of wind turbines in frequency regulation. However, it is difficult for the existing droop control to coordinate the frequency response characteristics ...
LIU Hui, LUO Wei, SU Yi, ZHAO Teyang
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Modeling and simulation of inertial drop break-up in a turbulent pipe flow downstream of a restriction. [PDF]
, 2012 This work deals with the modeling of drop break-up in an inhomogeneous turbulent flow that develops downstream of a concentric restriction in a pipe. The proposed approach consists in coupling Euler–Lagrange simulations of the drop motion to an interface
Maniero, Riccardo +3 more
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Improved Frequency Control Strategy for Offshore Wind Farm Integration via VSC-HVDC
Energies, 2022 Voltage source converter based high voltage DC system (VSC-HVDC) has become a very promising solution to integrate offshore wind farm. However, the equivalent inertia of the modern power system with large renewable energy integration becomes small, which
Rui Zeng, Yizhen Wang
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Energies, 2020 The large-scale application of wind power eases the shortage of conventional energy, but it also brings great hidden danger to the stability and security of the power grid because wind power has no ability for frequency regulation.
Xiangwu Yan, Xuewei Sun
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Flow boiling pressure drop of R134a in micro diameter tubes: Experimental results and assessment of correlations [PDF]
, 2011 This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
Mahmoud, MM +3 more
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