Results 21 to 30 of about 188,981 (310)

Research status of replacement gases for SF6 in power industry

open access: yesAIP Advances, 2020
SF6 is widely used in the industrial field due to its stable structure and excellent properties. It is mainly used in electrical insulation equipment. Due to the boiling point of SF6, its use in extremely cold regions has been limited.
Shuangshuang Tian   +7 more
doaj   +1 more source

Synthesis of devices for efficient energy conversion

open access: yesJournal of Physics: Conference Series, 2021
Abstract The synthesis of devices for efficient energy conversion is shown. It is shown that simple aggregation as the most obvious way to obtain three-phase converters based on single-phase circuit solutions can lead to disadvantages during their operation.
S. V. Myatezh   +4 more
openaire   +2 more sources

A Marginal Contribution Theory-Based Energy Efficiency Contribution Analysis for Integrated Energy System

open access: yesFrontiers in Energy Research, 2021
The energy efficiency analysis is a prerequisite for the construction of the integrated energy system (IES). In this study, a novel energy efficiency analysis method is proposed considering different energy subsystems in the IES.
Shihai Yang   +6 more
doaj   +1 more source

Silver/Polypyrrole-Functionalized Polyurethane Foam Embedded Phase Change Materials for Thermal Energy Harvesting

open access: yesNanomaterials, 2021
Conversion of solar energy into thermal energy stored in phase change materials (PCMs) can effectively relieve the energy dilemma and improve energy utilization efficiency.
Dongli Fan   +7 more
doaj   +1 more source

Energy Conversion Efficiency of the Bulk Photovoltaic Effect

open access: yesPRX Energy, 2023
The bulk photovoltaic effect (BPVE) leads to directed photocurrents and photovoltages in bulk materials. Unlike photovoltages in p-n junction solar cells that are limited by carrier recombination to values below the band-gap energy of the absorbing ...
Andreas Pusch   +3 more
doaj   +1 more source

Dynamic Characteristics of Downhole Bit Load and Analysis of Conversion Efficiency of Drill String Vibration Energy

open access: yesEnergies, 2021
The longitudinal vibration of the drill pipe contains considerable energy which can be used to improve the rock-breaking efficiency during drilling. It is very important to the development of drilling speed-up tools to have a comprehensive understanding ...
Yuqiang Xu   +2 more
doaj   +1 more source

Hydrodynamic Analysis of 3-SPS Wave Energy Conversion Device [PDF]

open access: yesE3S Web of Conferences, 2021
Wave energy has the advantages of high energy density, renewability, and wide distribution, and has been highly valued by many coastal countries.
Ji Zhifei   +3 more
doaj   +1 more source

Energy Conversion Efficiency of Pulsed Ultrasound

open access: yesEnergy Procedia, 2015
AbstractEnergy characterization of a pulsed ultrasonic system was carried out using a modified calorimetric method. Sonochemical efficiency (SE) for the oxidation of Fe+2 and the formation of H2O2 was determined for selected on:off ratios (R) and different power levels.
Talal Yusaf   +2 more
openaire   +2 more sources

Effect of the pitch angle and of the number of blades on depression created under impellers

open access: yesMATEC Web of Conferences, 2017
This work presents a set of experiments concerning the behavior of several types of impellers regarding the depression formatted and operating in a specific range of rotations.
Băbuţanu Corina, Mândrea Lucian
doaj   +1 more source

Chemical looping gasification of benzene as a biomass tar model compound using hematite modified by Ni as an oxygen carrier

open access: yesApplications in Energy and Combustion Science, 2023
The effective removal of tar is a major challenge for biomass gasification. Schemes based on chemical looping gasification (CLG) offer a promising alternative for converting biomass into syngas with low tar content.
Huang Zhen   +9 more
doaj  

Home - About - Disclaimer - Privacy