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Junlei Wang

Bio: Junlei Wang is an academic researcher from Zhengzhou University. The author has contributed to research in topics: Vibration & Energy harvesting. The author has an hindex of 23, co-authored 83 publications receiving 1814 citations. Previous affiliations of Junlei Wang include University of Auckland & Chongqing University.

Papers published on a yearly basis

Papers
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Journal ArticleDOI
TL;DR: In this article, a high-performance piezoelectric wind energy harvester with Y-shaped attachments on the bluff body (GPEH-Y) was proposed.

353 citations

Journal ArticleDOI
TL;DR: The paper summarizes the works led to the current wind energy and hydro energy harvesters based on the principle of flow- induced vibrations, including bladeless generator Vortex Bladeless, University of Michigan vortex-induced vibrations aquatic clean energy, Australian BPS company's airfoil tidal energy capture device bioSTREAM, and others.

313 citations

Journal ArticleDOI
01 Apr 2019-Energy
TL;DR: In this paper, a galloping-based piezoelectric energy harvester (GPEH) with triangular cross-section bluff bodies with different vertex angles is investigated, and the aerodynamic characteristics are determined by Computational Fluid Dynamics (CFD) and verified by experimental data.

194 citations

Journal ArticleDOI
TL;DR: In this paper, the performance of a double-beam piezo-magneto-elastic wind energy harvester (DBPME-WEH) when exhibiting a galloping-based energy harvesting regime under wind excitation was investigated.
Abstract: This study investigates the performance of a double-beam piezo-magneto-elastic wind energy harvester (DBPME-WEH) when exhibiting a galloping-based energy harvesting regime under wind excitation. The DBPME-WEH comprises two piezoelectric beams, each of which supports a prism bluff body embedded with a magnet at the tip. The magnets are oriented to repulse each other to introduce a bistable nonlinearity. Wind tunnel tests were conducted to compare performances of the DBPME-WEH and a double-beam piezoelectric wind energy harvester (DBP-WEH) that does not comprise the magnet-induced nonlinearity. The results reveal that compared to the DBP-WEH, the critical wind speed to activate the galloping vibration of DBPME-WEH can be reduced up to 41.9%. Thus, the results corroborate the significant performance enhancement by the DBPME-WEH. It can also be found that the distance of the two magnets affects the performance and the distance that achieves the weakly bistable nonlinearity is beneficial to energy harvesting in reducing the critical wind speed and improving the output voltage.

165 citations

Journal ArticleDOI
TL;DR: In this article, Amino acid salt (AAS) solutions are regarded as promising CO2 absorbents compared to traditional amine solutions, as they are environmentally being with lower evaporation as well as fewer degradation issues.
Abstract: Carbon capture and storage (CCS) is now known to be an effective way to reduce greenhouse gas emissions especially CO2 to the atmosphere. Amino acid salt (AAS) solutions are regarded as promising CO2 absorbents compared to traditional amine solutions, as they are environmentally being with lower evaporation as well as fewer degradation issues. This paper is intended to review recent developments in CO2 capture using AASs. The thermodynamics and kinetics of CO2 and different AASs are illustrated in detail. We will also discuss the blended solutions containing AASs in terms of applications and absorption or regeneration performance. Additionally, we will present specific directions for future research on CO2-AAS systems. This paper could provide a guideline for effective carbon capture by new absorbents.

147 citations


Cited by
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Journal ArticleDOI
TL;DR: This paper presents an update to the authors' previous review paper by summarizing the notable developments in the field of piezoelectric energy harvesting through the past decade.
Abstract: Energy harvesting technologies have been explored by researchers for more than two decades as an alternative to conventional power sources (e.g. batteries) for small-sized and low-power electronic devices. The limited life-time and necessity for periodic recharging or replacement of batteries has been a consistent issue in portable, remote, and implantable devices. Ambient energy can usually be found in the form of solar energy, thermal energy, and vibration energy. Amongst these energy sources, vibration energy presents a persistent presence in nature and manmade structures. Various materials and transduction mechanisms have the ability to convert vibratory energy to useful electrical energy, such as piezoelectric, electromagnetic, and electrostatic generators. Piezoelectric transducers, with their inherent electromechanical coupling and high power density compared to electromagnetic and electrostatic transducers, have been widely explored to generate power from vibration energy sources. A topical review of piezoelectric energy harvesting methods was carried out and published in this journal by the authors in 2007. Since 2007, countless researchers have introduced novel materials, transduction mechanisms, electrical circuits, and analytical models to improve various aspects of piezoelectric energy harvesting devices. Additionally, many researchers have also reported novel applications of piezoelectric energy harvesting technology in the past decade. While the body of literature in the field of piezoelectric energy harvesting has grown significantly since 2007, this paper presents an update to the authors' previous review paper by summarizing the notable developments in the field of piezoelectric energy harvesting through the past decade.

471 citations

Journal ArticleDOI
TL;DR: A comprehensive review on the state-of-the-art of piezoelectric energy harvesting is presented in this paper, where the authors present the broad spectrum of applications of piezolectric materials for clean power supply to wireless electronics in diverse fields.

418 citations

Journal ArticleDOI
TL;DR: In this article, a high-performance piezoelectric wind energy harvester with Y-shaped attachments on the bluff body (GPEH-Y) was proposed.

353 citations

Journal ArticleDOI
TL;DR: The paper summarizes the works led to the current wind energy and hydro energy harvesters based on the principle of flow- induced vibrations, including bladeless generator Vortex Bladeless, University of Michigan vortex-induced vibrations aquatic clean energy, Australian BPS company's airfoil tidal energy capture device bioSTREAM, and others.

313 citations

Journal ArticleDOI
TL;DR: In this article , the authors summarized some of the scientific works presented in the Sustainable Energy and Environmental Protection (SEEP) conference-held at the University of the West of Scotland, UK, 2018.
Abstract: The current editorial summarized some of the scientific works presented in the Sustainable Energy and Environmental Protection (SEEP) conference-held at the University of the West of Scotland, UK, 2018. The selected work was directly related to the scope of the Renewable, Sustainable Energy Reviews (RSER) journal. During the conference activities, experts from all around the world in the subjects of: renewable energy, climate change, optimization, and economics presented and discussed the progress made in renewable energy sources, as well as the new strategies for protecting the environment from the hazards connected with fossil fuel utilization. The methods presented in the conference focused on several directions: the development of efficient energy conversion systems with low/no environmental impacts; the suggested policies to widespread renewable energies; the restriction in the emission of greenhouse gases, and the recent progresses in CO2 capture. This editorial focused on the renewable energy developments and their positive effect on the climate change, and briefly summarized the accepted manuscripts in this issue.

291 citations