Results 41 to 50 of about 23,991 (249)

Use of thermal and magnetic devices for prevention of asphaltene, resin, and wax deposits on oil equipment surfaces [PDF]

, 2019
Purpose. To substantiate the advantages of using a multi-level externally insulated complex of magneto-thermal dewaxing which is located in the oil well and improves production of the formation fluid with high content of asphaltene, resin, and wax ...
Manhura, A, Vynnykov, Yu, Zimin, O, Маtviienko, A   +3 more
core   +1 more source

SIMULATION OF THERMAL DECOMPOSITION OF MINERAL INSULATING OIL

Brazilian Journal of Chemical Engineering, 2015
Dissolved gas analysis (DGA) has been applied for decades as the main predictive maintenance technique for diagnosing incipient faults in power transformers since the decomposition of the mineral insulating oil (MIO) produces gases that remain dissolved in the liquid phase.
Cruz, V. G. M., Costa, A. L. H., Paredes, M. L. L.   +2 more
openaire   +3 more sources

Pulsed Electrolysis Prevents Sulfur Poisoning for Sustained Sulfide Valorization

Advanced Materials, EarlyView.
Integrating pulsed electrolysis with Sc‐doped NiFe‐LDH enables sustainable sulfide valorization, achieving >500 h stability, 99.8% efficiency. Moreover, this technology produces high‐purity sulfur and sodium formate, boosting profit by 121% to $1,294.7 per tonne of hydrogen.
Zhiyan Hou, Yangbo Ma, Yufeng Wu, Weijin Cao, Zhengxiao Guo, Changlong Wang   +5 more
wiley   +1 more source

Comparative analysis of multi-physical fields of vegetable and mineral insulating oil power transformer

Cogent Engineering
This article calculates and studies the oil flow distribution, temperature distribution and electric field distribution of vegetable and mineral Insulating oil in the low-voltage winding of the transformer with finite element method (FEM).
Suning Liang, Zhi Yang, Xianjun Shao, Lingfeng Jin, Qiang Wang, Zhengyong Huang   +5 more
doaj   +1 more source

Effect of side chains on the dielectric properties of alkyl esters derived from palm kernel oil [PDF]

, 2011
Alkyl ester derivatives were synthesized from laboratory purified palm kernel oil. The steps in the synthesis involved transesterification of palm kernel oil to produce a methyl ester, followed by epoxidation and then the grafting of side chains by ...
Abbott, A. P., Abdelmalik, A. A., Dodd, S. J., Fothergill, J., Harris, R. C.   +4 more
core   +1 more source

Mechanically Robust MXene‐Metal Polyphenol Network Hybrid Interfaces for Multifunctional Protection of Keratin Fibers

Advanced Materials Interfaces, EarlyView.
Hair keratin fibers inevitably deteriorate under UV exposure, heat, and dryness. A robust composite coating assembles delaminated Ti3C2 MXene nanosheets onto keratin surfaces through biocompatible metal‐polyphenol networks of EGCG. This hybrid layer simultaneously screens UV, dissipates heat, reinforces mechanical strength, suppresses static charge ...
Juyeon Kang, Bomin Kim, Minkyoung Kim, Juyeon Park, Saehan Choi, Won Jun Lee, Heewon Kim, Yoonsung Nam, Jongwon Shim   +8 more
wiley   +1 more source

Comparative analysis of the impact of dissolved decay products on the dielectric performances of natural monoesters and mineral oil for power transformers

Scientific African, 2021
The challenge of bio-based insulating oil research is the development of a new alternative insulating liquid to mineral oil (MO) for power transformers with identical and even better characteristics in the long run.
Emeric Tchamdjio Nkouetcha, Ghislain Mengata Mengounou, Adolphe Moukengue Imano   +2 more
doaj   +1 more source

Fabrication Technologies for Soft, Multimaterial Optical Fibers for In Vivo Diagnostics and Phototherapy, With a Focus on Extrusion Printing

Advanced Materials Technologies, EarlyView.
Soft multimaterial optical fibers integrate multiple functionalities—such as waveguiding, side emission, sensing, drug delivery or actuation—into a single filament for wearable, implantable, and tissue‐integrated devices for diagnostics and phototherapy.
Zahra Kafrashian, Jun Feng, Aránzazu del Campo   +2 more
wiley   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Molecular Dynamics Study on the Diffusion Behavior of Water Molecules and the Dielectric Constant of Vegetable/Mineral Oil Blends

Molecules, 2023
Insulating oil plays a crucial role in internal insulation of oil-impregnated transformers. It has been demonstrated in a variety of experimental studies that mineral oil (MO) and vegetable oil (VO) can be blended in different ratios to improve ...
Manqing Zhao, Bo Zhang, Jianfei Li, Qiankai Zhang, Huaqiang Li   +4 more
doaj   +1 more source