Results 21 to 30 of about 48,477 (300)

Simulation of the hybrid and steady state advanced operating modes in ITER [PDF]

Nuclear Fusion, 2007
Integrated simulations are performed to establish a physics basis, in conjunction with present tokamak experiments, for the operating modes in the International Thermonuclear Experimental Reactor (ITER). Simulations of the hybrid mode are done using both fixed and free-boundary 1.5D transport evolution codes including CRONOS, ONETWO, TSC/TRANSP, TOPICS
Kessel, C., Giruzzi, G., Sips, A., Budny, R., Artaud, J., Basiuk, V., Imbeaux, F., Joffrin, E., Schneider, M., Murakami, M., Luce, T., St John, H., Oikawa, T., Hayashi, N., Takizuka, T., Ozeki, T., Na, Y., Park, J., Garcia, J., Tucillo, A.   +19 more
openaire   +2 more sources

Design of New Nonisolated High Gain Converter for Higher Power Density

International Transactions on Electrical Energy Systems, 2023
A high gain nonisolated DC-DC converter using a single power semiconductor switch is proposed in this article. The operation of the proposed converter is explained under continuous conduction mode (CCM), discontinuous conduction mode (DCM), and boundary ...
Ramachandran Rajesh, Natarajan Prabaharan   +1 more
doaj   +1 more source

A Hybrid Dual-Mode Control for Permanent-Magnet Synchronous Motor Drives

IEEE Access, 2020
In order to obtain satisfactory transient and steady-state performances, a hybrid dual-mode control (HDMC) is proposed for surface-mounted permanent-magnet synchronous motor drives (PMSMs), which contains two control modes.
Wei Wang, Zhixiang Lu, Wei Hua, Zheng Wang, Ming Cheng   +4 more
doaj   +1 more source

A robust clustering method for detection of abnormal situations in a process with multiple steady-state operation modes [PDF]

Computers & Chemical Engineering, 2010
Abstract Many classical multivariate statistical process monitoring (MSPM) techniques assume normal distribution of the data and independence of the samples. Very often, these assumptions do not hold for real industrial chemical processes, where multiple plant operating modes lead to multiple nominal operation regions.
Mauricio Maestri, Andrés Farall, Pablo Groisman, Miryan Cassanello, Gabriel Horowitz   +4 more
openaire   +2 more sources

On the Theory of Unsteady-State Operation of Bulk Continuous Crystallization

Crystals, 2022
Motivated by an important application in the chemical and pharmaceutical industries, we consider the non-stationary growth of a polydisperse ensemble of crystals in a continuous crystallizer.
Eugenya V. Makoveeva, Dmitri V. Alexandrov, Alexander A. Ivanov   +2 more
doaj   +1 more source

Operation-Adaptive Damage Assessment of Steam Turbines Using a Nonlinear Creep-Fatigue Interaction Model

IEEE Access, 2020
For sustainable operation, power plants require accurate damage assessment of the steam turbines used for power generation. In the past few decades, steam turbine designs have considered only steady-state operation, without accounting for thermal cyclic ...
Woosung Choi, Heonjun Yoon, Byeng Dong Youn   +2 more
doaj   +1 more source

Recent progress of the development of a long pulse 140GHz ECRH system on EAST [PDF]

EPJ Web of Conferences, 2019
A long pulse ECRH system with a goal of 140GHz 4MW 100~1000s has been developed to meet the requirement of steady-state operation on EAST. Gycom gyrotrons are employed in the No.1 and No.3 systems, CPI gyrotrons are used in the No.2 and No.4 systems. The
Xu Handong, Wang Xiaojie, Zhang Jian, Liu Fukun, Huang Yiyun, Shan Jiafang, Xu Weiye, Li Miaohui, Lohr J., Gorelov Y.A., Anderson J.P., Zhang Yang, Wu Dajun, Hu Huaichuan, Yang Yong, Feng Jianqiang, Tang Yunying, Li Bo, Ma Wendong, Wu Zege, Wang Jian, Zhang Liyuan, Guo Fei, Sun Haozhang, Yan Xinsheng   +24 more
doaj   +1 more source

Average Model-Based Feedforward and Feedback Control for PUC5 Inverter

IEEE Access, 2020
This paper proposes new average model based control strategies for a 5-level Packed U-cell (PUC5) inverter in both standalone and grid-connected modes of operation.
Khaled Rayane, Mohamed Bougrine, Abdelbasset Krama, Atallah Benalia, Mohamed Trabelsi, Haitham Abu-Rub   +5 more
doaj   +1 more source

Experimental validation of equilibria in fuel cells with dead-ended anodes [PDF]

, 2013
This paper investigates the nitrogen blanketing front during the dead-ended anode (DEA) operation of a PEM fuel cell. Surprisingly the dynamic evolution of nitrogen and water accumulation in the dead-ended anode (DEA) of a PEM fuel cell arrives to a ...
Anna G. Stefanopoulou, Siegel, Jason B., Yeşilyurt, Serhat, Toyoaki Matsuura, Stefanopoulou, Anna G., Jason B. Siegel, Matsuura, Toyoaki, Serhat Yesilyurt, Chen, Jixin, Jixin Chen   +9 more
core   +1 more source

Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions

Energies, 2023
In this present paper, results for the temperature distribution in electromagnetic construction in the form of coil coupled with EI-type ferromagnetic core are presented. This construction is typical for small electric transformers (AC operation mode) or
Denitsa Darzhanova, Ilona Iatcheva
doaj   +1 more source