Investigation on micro-mechanism of palm oil as natural ester insulating oil for overheating thermal fault analysis of transformers

Article Engineering, Electrical & Electronic

Improved information entropy weighted vague support vector machine method for transformer fault diagnosis

Hongru Zhang et al.

Summary: An IVSVM model combining improved information entropy and vague support vector machine is introduced for transformer fault diagnosis, improving accuracy by weighting training data and optimizing SVM sub-interface with vague set.

HIGH VOLTAGE (2022)

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Article Energy & Fuels

Atomic-scale insight into the pyrolysis of polycarbonate by ReaxFF-based reactive molecular dynamics simulation

Qiang Liu et al.

Summary: The isothermal pyrolysis behavior of bisphenol-A polycarbonate under anoxic conditions was studied using ReaxFF simulations, which successfully reproduced the main pyrolysis products observed in experiments. The pyrolysis of polycarbonate was dominated by random chain scission, with carbonate groups being more vulnerable to high temperatures. ReaxFF simulations revealed reaction routes of various pyrolysis products and indicated that certain reactions like cyclic oligomer formation, hydrolysis, and transesterification were less likely to occur at extremely high temperatures.

FUEL (2021)

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Article Thermodynamics

ReaxFF simulations of the synergistic effect mechanisms during co-pyrolysis of coal and polyethylene/polystyrene

Dikun Hong et al.

Summary: This paper investigates the co-pyrolysis behaviors of Zhundong coal with polyethylene (PE) and polystyrene (PS) using reactive molecular dynamics simulation. The results show that coal promotes primary decomposition of PE at low temperatures but has little effect on PE pyrolysis at high temperatures. Meanwhile, PE and PS significantly promote coal char decomposition at high temperatures, with polystyrene having a more pronounced effect than polyethylene.

ENERGY (2021)

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Review Green & Sustainable Science & Technology

A critical review of plant-based insulating fluids for transformer: 30-year development

Zijia Shen et al.

Summary: As mineral oil faces challenges in environmental friendliness and operational efficiency, the demand for plant-based insulating fluids as a renewable and biodegradable alternative has been increasing. With over 20 years of field experience, plant-based oils have been proven to be both cost-effective and safer than mineral oil for transformers.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

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Article Green & Sustainable Science & Technology

Pre-hydrogenation stage as a strategy to improve the continuous production of a diesel-like biofuel from palm oil

Juan I. del Rio et al.

Summary: In this study, a diesel-like biofuel was successfully produced from palm oil through two reactions stages under high pressure conditions. Pre-hydrogenation reaction enabled higher conversion and yield, reducing the amount of deoxygenation catalyst needed. Aside from decarboxylation route, decarbonylation and hydrodeoxygenation routes also contributed to the product yield.

RENEWABLE ENERGY (2021)

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Article Green & Sustainable Science & Technology

Simulation of the diffusion behavior of water molecules in palm oil and mineral oil at different temperatures

Qinpan Qiu et al.

Summary: This study investigated the diffusion behavior of water molecules in palm oil and mineral oil using the molecular dynamics method. It was found that the diffusion capability of water molecules in mineral oil was significantly higher than that in palm oil, and the effect of temperature on water molecule diffusion was greater in mineral oil.

RENEWABLE ENERGY (2021)

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Article Engineering, Electrical & Electronic

Investigation on thermally aged natural ester oil for real-time monitoring and analysis of transformer insulation

Arputhasamy Joseph Amalanathan et al.

HIGH VOLTAGE (2020)

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Article Engineering, Electrical & Electronic

Influence of ageing on oil degradation and gassing tendency under high-energy electrical discharge faults for mineral oil and synthetic ester

L. Loiselle et al.

HIGH VOLTAGE (2020)

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Proceedings Paper Engineering, Electrical & Electronic

Updated experiences of DGA with natural esters and current state of international guides

Matias Meira et al.

PROCEEDINGS OF THE 2020 3RD IEEE INTERNATIONAL CONFERENCE ON DIELECTRICS (ICD 2020) (2020)

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Review Engineering, Electrical & Electronic

Palm Fatty Acid Ester as Biodegradable Dielectric Fluid in Transformers: A Review

Junko Tokunaga et al.

IEEE ELECTRICAL INSULATION MAGAZINE (2019)

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Article Chemistry, Applied

Effects of Molecular Structure on the Physical, Chemical, and Electrical Properties of Ester-Based Transformer Insulating Liquids

Nurliyana Abdul Raof et al.

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY (2019)

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Article Thermodynamics

Thermal behavior, kinetics and fast pyrolysis characteristics of palm oil: Analytical TG-FTIR and Py-GC/MS study

Yingyun Qiao et al.

ENERGY CONVERSION AND MANAGEMENT (2019)

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Review Energy & Fuels

Hydroprocessed vegetable oil as a fuel for transportation sector: A review

Ankit Sonthalia et al.

JOURNAL OF THE ENERGY INSTITUTE (2019)

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Article Computer Science, Information Systems

Electro-Thermal Fault Diagnosis Method of RAPO Vegetable Oil Transformer Based on Characteristic Gas and Ratio Criterion

Haoxi Cong et al.

IEEE ACCESS (2019)

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Article Energy & Fuels

A ReaxFF-Based Molecular Dynamics Simulation of the Pyrolysis Mechanism for Polycarbonate

Tong Zhao et al.

ENERGY & FUELS (2018)

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Article Engineering, Electrical & Electronic

Comparison of Antioxidant Influence on Mineral Oil and Natural Ester Properties under Accelerated Aging Conditions

R. Madavan et al.

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (2017)

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Article Engineering, Electrical & Electronic

Lifetime Estimation of Cellulosic Insulation Material in Palm Fatty Acid Ester for Power Transformers

Junko Tokunaga et al.

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (2017)

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Article Chemistry, Physical

Harmonic Vibrational Frequencies: Approximate Global Scaling Factors for TPSS, M06, and M11 Functional Families Using Several Common Basis Sets

D. O. Kashinski et al.

JOURNAL OF PHYSICAL CHEMISTRY A (2017)

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Review Green & Sustainable Science & Technology

A methodological review on bio-lubricants from vegetable oil based resources

Tirth M. Panchal et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2017)

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Review Physics, Applied

Electrical insulating liquid: A review

Deba Kumar Mahanta et al.

JOURNAL OF ADVANCED DIELECTRICS (2017)

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Article Biochemistry & Molecular Biology

Evaluation of hydrogen bond networks in cellulose Iβ and II crystals using density functional theory and Car-Parrinello molecular dynamics

Daichi Hayakawa et al.

CARBOHYDRATE RESEARCH (2017)

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Article Engineering, Electrical & Electronic

Understanding the Ageing Aspects of Natural Ester Based Insulation liquid in Power Transformer

Kapila Bandara et al.

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (2016)

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Review Chemistry, Physical

The ReaxFF reactive force-field: development, applications and future directions

Thomas P. Senftle et al.

NPJ COMPUTATIONAL MATERIALS (2016)

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Review Engineering, Electrical & Electronic

Progress in and prospects for electrical insulating materials

Shengtao Li et al.

HIGH VOLTAGE (2016)

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Article Thermodynamics

The challenges and prospects of palm oil based biodiesel in Malaysia

Anwar Johari et al.

ENERGY (2015)

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Review Thermodynamics

Implementation of palm biodiesel based on economic aspects, performance, emission, and wear characteristics

M. H. Mosarof et al.

ENERGY CONVERSION AND MANAGEMENT (2015)

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Article Engineering, Electrical & Electronic

Dissolved gas analysis (DGA) of natural ester insulating fluids with different chemical compositions

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (2014)

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Article Engineering, Electrical & Electronic

Suitability of Palm Based Oil as Dielectric Insulating Fluid in Transformers

Norhafiz Azis et al.

JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY (2014)

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Article Chemistry, Physical

Parametric Study of ReaxFF Simulation Parameters for Molecular Dynamics Modeling of Reactive Carbon Gases

Benjamin D. Jensen et al.

JOURNAL OF CHEMICAL THEORY AND COMPUTATION (2012)

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Article Engineering, Environmental

Production of olefins via steam cracking of vegetable oils

Petr Zamostny et al.

RESOURCES CONSERVATION AND RECYCLING (2012)

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Article Energy & Fuels

New path in the thermal cracking of triacylglycerols (canola and soybean oil)

Alena Kubatova et al.

FUEL (2011)

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Article Engineering, Electrical & Electronic

Influence of Vegetable Oil on the Thermal Aging of Transformer Paper and its Mechanism

Lijun Yang et al.

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION (2011)

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Article Chemistry, Multidisciplinary

Effect of the Damping Function in Dispersion Corrected Density Functional Theory

Stefan Grimme et al.

JOURNAL OF COMPUTATIONAL CHEMISTRY (2011)

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Article Energy & Fuels

Fed-Batch Catalytic Deoxygenation of Free Fatty Acids

Jeremy G. Immer et al.

ENERGY & FUELS (2010)

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Article Engineering, Electrical & Electronic

Aging Performance and Moisture Solubility of Vegetable Oils for Power Transformers

Stefan Tenbohlen et al.

IEEE TRANSACTIONS ON POWER DELIVERY (2010)

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Article Chemistry, Physical

A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu

Stefan Grimme et al.

JOURNAL OF CHEMICAL PHYSICS (2010)

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Article Biophysics

The Stability of Cellulose: A Statistical Perspective from a Coarse-Grained Model of Hydrogen-Bond Networks

Tongye Shen et al.

BIOPHYSICAL JOURNAL (2009)

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Article Chemistry, Physical

Energy-represented direct inversion in the iterative subspace within a hybrid geometry optimization method

XS Li et al.

JOURNAL OF CHEMICAL THEORY AND COMPUTATION (2006)

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Article Energy & Fuels

Thermodynamics calculation of the pyrolysis of vegetable oils

ZY Cheng et al.

ENERGY SOURCES (2004)

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Article Engineering, Electrical & Electronic

Vegetable oils for liquid-filled transformers

TV Oommen

IEEE ELECTRICAL INSULATION MAGAZINE (2002)

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Article Chemistry, Physical

ReaxFF: A reactive force field for hydrocarbons

ACT van Duin et al.

JOURNAL OF PHYSICAL CHEMISTRY A (2001)

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Review Chemistry, Multidisciplinary

Chemistry with ADF

G te Velde et al.

JOURNAL OF COMPUTATIONAL CHEMISTRY (2001)

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Article Chemistry, Analytical

Fundamental reactions of free radicals relevant to pyrolysis reactions

ML Poutsma

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS (2000)

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Investigation on micro-mechanism of palm oil as natural ester insulating oil for overheating thermal fault analysis of transformers

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