Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication DOI Creative Commons

Yiming Lei,

Yange Feng, Zixiang Wu

et al.

Friction, Journal Year: 2024, Volume and Issue: 13(2), P. 9440938 - 9440938

Published: Dec. 6, 2024

The stable operation of friction pairs is one the most critical factors to maintain mechanical equipment. real-time monitoring lubrication state pair very important ensure normal machinery and realize early warning wear failure, but it also a big challenge. In this article, new in-situ system designed, which can monitor through triboelectrification. current acquisition module coefficient are integrated into high vacuum hydrodynamic oil film thickness measuring instrument explore intrinsic relationship between triboelectricity curves. When severe occurs, at interface no longer complete, accumulated triboelectric charge breaks down air causes discharge, suddenly increases from nanoampere level microampere level. time node when discharge occurs steel ball well consistent with suffers serious wear. According corresponding status pair, an designed operating in real signals. worn, will send out sound light alarm signals warnings mobile terminal Internet Things, providing reliable method for grease-lubricated machinery.

Language: Английский

Electroactive halloysite/PVDF film based piezoelectric nanogenerator capable of sensing small natural mechanical vibration DOI

Ujjwal Rajak,

Sanoar Molla,

Farha Khatun

et al.

Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(16)

Published: June 1, 2024

Language: Английский

Citations

2
Innovative Technologies for Large-Scale Water Production in Arid Regions: Strategies for Sustainable Development DOI Open Access
Boris Menin

Journal of Applied Mathematics and Physics, Journal Year: 2024, Volume and Issue: 12(07), P. 2506 - 2558

Published: Jan. 1, 2024

Water scarcity in arid regions poses significant challenges to sustainable development and human well-being. This article explores both existing innovative technologies methods produce large amounts of water address these effectively. Key approaches include atmospheric generation, advanced desalination techniques, collection such as fog nets dew harvesting, geothermal extraction, recycling reuse. Each method is evaluated for its feasibility with technology, potential time implementation, required investments, specific challenges. By leveraging combining them into a multifaceted management strategy, it possible enhance security, support agricultural industrial activities, improve living conditions regions. Collaborative efforts between governments, private sector entities, research institutions are crucial advancing ensuring their implementation. The provides comprehensive overview the current state technologies, large-scale application, recommendations future development.

Language: Английский

Citations

2
Laser processing for electricity generators: Physics, methods and applications DOI
Daozhi Shen, Xinquan Zhang, Limin Zhu

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 120, P. 109182 - 109182

Published: Dec. 12, 2023

Language: Английский

Citations

4
A perspective on stretchable ionic thermoelectric supercapacitors for wearable applications: Present and challenges DOI Open Access
Tae Hyun Park

Applied Physics Letters, Journal Year: 2023, Volume and Issue: 123(19)

Published: Nov. 6, 2023

The conversion of sustainable heat sources from the human body into electricity is a promising strategy for self-powered temperature monitoring and power supplies in wearable electronics. Recently, ionic thermoelectrics (i-TEs) have gained considerable attention because their Seebeck coefficients (mV K−1), which are orders magnitude larger than those conventional electronic TEs (e-TEs). In particular, i-TE supercapacitors (ITESCs) based on thermodiffusion under gradient redox-free electrolytes exhibit 10 mV K−1. This characteristic solves requirement numerous pairs p/n type TE legs to achieve sufficient output voltage, thereby substantially minimizing device complexity. Therefore, development stretchable ITESCs capable harvesting human-generated thermal energy beneficial future platforms. From this perspective, recent studies been summarized electrolytes, hold potential use sensors. Furthermore, challenges presented, perspectives fully provided applications.

Language: Английский

Citations

3
The enhanced ionic thermal potential by a polarized electrospun membrane DOI Creative Commons
Ayesha Sultana, Md. Mehebub Alam, Xavier Crispin

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(16), P. 2196 - 2199

Published: Jan. 1, 2024

Adding a polarized membrane to ionic thermoelectric devices induces dipole–ion interaction and enhances the thermal voltage by more than double.

Language: Английский

Citations

0
Monitoring of lubrication and wear in-situ by triboelectrification under grease lubrication DOI Creative Commons

Yiming Lei,

Yange Feng, Zixiang Wu

et al.

Friction, Journal Year: 2024, Volume and Issue: 13(2), P. 9440938 - 9440938

Published: Dec. 6, 2024

The stable operation of friction pairs is one the most critical factors to maintain mechanical equipment. real-time monitoring lubrication state pair very important ensure normal machinery and realize early warning wear failure, but it also a big challenge. In this article, new in-situ system designed, which can monitor through triboelectrification. current acquisition module coefficient are integrated into high vacuum hydrodynamic oil film thickness measuring instrument explore intrinsic relationship between triboelectricity curves. When severe occurs, at interface no longer complete, accumulated triboelectric charge breaks down air causes discharge, suddenly increases from nanoampere level microampere level. time node when discharge occurs steel ball well consistent with suffers serious wear. According corresponding status pair, an designed operating in real signals. worn, will send out sound light alarm signals warnings mobile terminal Internet Things, providing reliable method for grease-lubricated machinery.

Language: Английский

Citations

0