Results 51 to 60 of about 642,509 (288)
Prediction of concentration for dissolved gas in oil based on CEEMDAN and TCN
电力工程技术Accurately predicting the concentration trend of dissolved gas in oil has a positive effect on the evaluation of transformer status and life assessment.
ZHANG Wenqian +4 more
doaj +1 more source
CFD modelling of two-phase stirred bioreaction systems by segregated solution of the Euler–Euler model [PDF]
, 2013 An advanced study of a bioreactor system involving a Navier–Stokes based model has been accomplished. The model allows a more realistic impeller induced flow image to be combined with the Monod bioreaction kinetics reported previously. The time-course of
Elqotbi, Mohammed +3 more
core +4 more sources
Advanced Engineering Materials, EarlyView.Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +1 more source
Diagnosis Kondisi Minyak Tranformator Menggunakan Teknik Dissolved Gas Analysis
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik, 2022 At the Cikalong hydropower plant there are 3 power transformers with a voltage rating of 6.3/77 kV, because of their long life, it is necessary to analyze the condition of the transformer oil. One way to determine the level of fault gas contained in transformer oil is the DGA (Dissolved Gas Analysis) test.
Fauzia Haz +2 more
openaire +1 more source
Dissolved methane pluming mapping using Membrane Inlet Mass-Spectrometry (MIMS) at a blowout site in the North Sea [PDF]
, 2012 A blow out site in the North Sea (well 22/4-b, UK EEZ) in a water depth of 83 m, served as a test area to demonstrate MIMS as a powerful tool for the continuous measurement of dissolved methane simultaneously to the partial pressure of carbon dioxide ...
Linke, Peter +2 more
core
Advanced Engineering Materials, EarlyView.An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu +8 more
wiley +1 more source
Identification of Abnormal data in online dissolved gas monitoring in oil based on PCA and Fast-MCD
Zhejiang dianliTo detect the operational status of transformers by online monitoring of dissolved gases in oil is critical for ensuring its stable operation. However， faults in monitoring devices can result in abnormal data， severely impacting the effect of online ...
WANG Ziling +5 more
doaj +1 more source
IEEE Access, 2023 This work presents a new approach for the diagnosis of incipient faults in power transformers by considering dissolved gas analysis (DGA). A multilayer perceptron (MLP) neural network was trained to diagnose the type of transformer fault.
Juan Ferreira Vidal +1 more
doaj +1 more source
Online Dissolved Gas Analysis (DGA) Monitoring System
, 2019 Transformers are critical assets in power systems and transformer failures can cause asset damage, customer outages, and safety concerns. Dominion Energy has a sophisticated monitoring process for the transformers. One of the most cost-efficient, convenient and practical transformer monitoring methods in industry is Dissolved Gas Analysis(DGA ...
Deng, Xianda +4 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source