Results 21 to 30 of about 293,449 (289)

Analysis of the dielectric properties of R410A Gas as an alternative to SF(6) for high-voltage applications

High Voltage, 2018
Electric power industry is extensively using gas-insulated systems for the transmission and distribution of electrical energy. In high-voltage technology, the gas insulation is dominated by Sulphur-hexafluoride (SF(6)) since the early 60th.
Bakhtiar Khan, Jawad Saleem, Faisal Khan, Gul Faraz, Rizwan Ahmad, Naveed Ur Rehman, Zahoor Ahmad   +6 more
doaj   +1 more source

Promising Functional Graded Materials for Compact Gaseous Insulated Pipelines [PDF]

High Voltage, 2020
The electric field distributions along gas–solid interfaces determine the reliability, lifetimes and sizes of gaseous insulated switchgears/pipelines (GIS/GIL), which also affect the reliability of power systems. In this paper, the characteristics of steady and transient electric field distributions were first introduced, followed by the concept of ...
Jin Li, Wendong Li, Boxue Du, Guanjun Zhang   +3 more
openaire   +3 more sources

Experimental Study on Diesel Engine Emission Characteristics Based on Different Exhaust Pipe Coating Schemes

Micromachines, 2021
The thermal insulation performance of exhaust pipes coated with various materials (basalt and glass fiber materials) under different braiding forms (sleeve, winding and felt types) and the effects on the emission characteristics of diesel engines were ...
Keqin Zhao, Diming Lou, Yunhua Zhang, Liang Fang, Yuanzhi Tang   +4 more
doaj   +1 more source

On The Flame Behavior during Cable Insulation Material Ignited by Fault Arc: A Flame Extracting and Noise Reduction Algorithm

Fire, 2023
The electric fault arc, particularly the series arc, leads to plenty of electrical fire. The limitations of t previous studies include: (1) most existing research focused on gaseous atmospheres rather than solids materials, which is contrary to the ...
Yalong Wang, Chaoying Li, Haidong Liu, Jin Lin, Shouxiang Lu, Kim Meow Liew   +5 more
doaj   +1 more source

MCDM model for critical selection of building and insulation materials for optimising energy usage and environmental effect in production focus

Journal of Civil Engineering and Management, 2023
In the context of sustainable buildings, an ecological study of building and insulating materials is critical since it may assist affirm or shift the path of new technology development.
Alptekin Ulutaş, Figen Balo, Katarina Mirković, Željko Stević, Mohamed M. H. Mostafa   +4 more
doaj   +1 more source

Energy and Environmental Analysis of Renewable Energy Systems Focused on Biomass Technologies for Residential Applications: The Life Cycle Energy Analysis Approach

Energies, 2023
Sustainability and resilience are major challenges for the building sector in order to meet energy efficiency and low carbon emissions goals. Based on the defined and quantified targets of the EU climate change policy, Renewable Energy Systems (RESs) are
Effrosyni Giama, Elli Kyriaki, Athanasios Papaevaggelou, Agis Papadopoulos   +3 more
doaj   +1 more source

Identification of PD sources and insulation technologies in rotating machines

, 2015
Results of investigations having the purpose to correlate Partial Discharge (PD) patterns to specific defect typologies that can affect the GVPI insulation of MV stator windings, are summarized in this paper.
Aizza, Marco, Fantin, Filiberto, M. Aizza, CONTIN, ALFREDO, Piccolo, Andrea, A. Contin, A. Piccolo, F. Fantin   +7 more
core   +1 more source

Theoretical Investigation of Mono- and Di-Chloro-Substitient Effects on the Insulation and Greenhouse Properties of Octafluorocyclobutane

Frontiers in Chemistry, 2016
Octafluorocyclobutane, c-C4F8, and its derivatives are regarded as promising replacements of insulation gaseous SF6, which are currently widely used in electric equipment but suffer greatly from its greenhouse effect. Based on the recent finding that the
Lin Cheng, Lin Cheng, Zhaoyu Qin, Zhaoyu Qin, Chaohai Zhang, Huixuan Shi, Kun Zhao, Xiaoyu Xie, Haibo Ma   +8 more
doaj   +1 more source

Numerical Analysis of Conditions for Partial Discharge Inception in Spherical Gaseous Voids in XLPE Insulation of AC Cables at Rated Voltage and During AC, VLF and DAC Tests

Energies
AC power cables play an important role in power systems, in the transmission and distribution of electrical energy. For this reason, to ensure high operational reliability, voltage withstand tests and diagnostic tests are performed at every stage of ...
Paweł Mikrut, Paweł Zydroń
doaj   +1 more source

Moisture dependent thermal properties of hydrophilic mineral wool: application of the effective media theory

Medžiagotyra, 2015
Thermal properties of mineral wool based materials appear to be of particular importance for their practical applications because the majority of them is used in the form of thermal insulation boards.
Iñigo Antepara
doaj   +1 more source