文献类型：期刊文献

英文题名：A Triboelectric-Nanogenerator-Based Gas-Solid Two-Phase Flow Sensor for Pneumatic Conveying System Detecting

作者：Wang, Yan[1];Liu, Dehua[1];Hu, Zhiyuan[1];Chen, Tianyu[1];Zhang, Ziyi[1];Wang, Hao[1];Du, Taili[1];Zhang, Steven L.[3];Zhao, Zhiqiang[4];Zhou, Tongming[2];Xu, Minyi[1]

机构：[1]Dalian Maritime Univ, Marine Engn Coll, Dalian 116026, Peoples R China;[2]Univ Western Australia, Sch Civil Environm & Min Engn, Perth, WA 6009, Australia;[3]Max Planck Inst Intelligent Syst, Robot Mat Dept, D-70569 Stuttgart, Germany;[4]Guangdong Ocean Univ, Maritime Coll, Zhanjiang 524088, Peoples R China

年份：2021

卷号：6

期号：5

外文期刊名：ADVANCED MATERIALS TECHNOLOGIES

收录：SCI-EXPANDED(收录号：WOS:000635233100001)、、EI(收录号：20211410163575)、Scopus(收录号：2-s2.0-85103393049)、WOS

基金：Y.W., D.L., and Z.H. contributed equally to this work. The authors are grateful for the joint support from the National Natural Science Foundation of China (grant nos. 51879022, 51979045, and 51906029), the Fundamental Research Funds for the Central Universities, China (grant no. 3132019330), Chinese Scholarship Council (CSC no. 202006570022), and Projects for Dalian Youth Star of Science and Technology (grant no. 2018RQ12).

语种：英文

外文关键词：gas– solid two‐ phase flow; self‐ powered sensors; triboelectric nanogenerators

外文摘要：The particle concentration and the mass flow rate are the most important parameters describing the gas-solid two-phase flow. Herein, a novel method based on triboelectric nanogenerator is proposed for measuring a particle concentration and the mass flow rate in a gas-solid two-phase pipe flow. The as-fabricated gas-solid two-phase flow triboelectric nanogenerator (GS-TENG) consists of one acrylic base plate, one copper electrode, and one stripe of polytetrafluoroethylene (PTFE) membrane. Different materials can be detected by the GS-TENG, including organic material, such as flour, and inorganic materials, such as copper and soil. PTFE surface morphology is modified to improve the output performance of the GS-TENG in the experiments in order to detect the output electrical signal more efficiently. The peak output current generated by the gas-solid two-phase flow in the GS-TENG shows a mostly linear relationship with the concentration and mass flow rate. In addition, the transferred charge in the process of the flow also shows a highly linear relationship with the concentration and the mass flow rate, which is consistent with the theoretical derivation for the single electrode TENG. The experimental results demonstrate that the measurement error of the GS-TENG is less than 2%.