Hydrophobic organic coating based water-solid TENG for water-flow energy collection and self-powered cathodic protection

2021 ◽  
Author(s):  
Yupeng Liu ◽  
Guoyun Sun ◽  
Ying Liu ◽  
Weixiang Sun ◽  
Daoai Wang
Keyword(s):  
Water Flow ◽  
Cathodic Protection ◽  
Organic Coating ◽  
Flow Energy ◽  
Self Powered

scholarly journals Water flow energy harvesters for autonomous flowmeters

2016 ◽  
Vol 773 ◽  
pp. 012019 ◽  
Author(s):  
Sebastien Boisseau ◽  
Alexandre-Benoit Duret ◽  
Matthias Perez ◽  
Emmanuel Jallas ◽  
Eric Jallas
Keyword(s):  
Water Flow ◽  
Energy Harvesters ◽  
Flow Energy

Calcareous scales deposited in the organic coating defects during artificial seawater cathodic protection: Effect of zinc cations

2019 ◽  
Vol 784 ◽  
pp. 744-755 ◽  
Author(s):  
M. Ahmadzadeh ◽  
T. Shahrabi ◽  
M. Izadi ◽  
I. Mohammadi ◽  
S.M. Hoseinieh ◽  
...  
Keyword(s):  
Cathodic Protection ◽  
Organic Coating ◽  
Artificial Seawater ◽  
Protection Effect ◽  
Zinc Cations

Overview of Research on the Influence of Permeable Structures

2013 ◽  
Vol 405-408 ◽  
pp. 2115-2122
Author(s):  
Qian Qian Shang ◽  
Hui Xu ◽  
Guo Bin Li
Keyword(s):  
Water Flow ◽  
Flow Condition ◽  
River Regulation ◽  
Adverse Impact ◽  
Local Flow ◽  
Flow Energy ◽  
Similarities And Differences ◽  
Protective Structures

The protective structures on the shore often used in the river regulation and channel rectification works are divided into solid structures and permeable structures. The solid structures will cause an intensive change of the local flow condition, and lead to adverse impact as scouring of local foundation and edges; the permeable structures which can dissipate the flow energy are gradually popularized for use. Common permeable structures include the tetrahedron-like penetrating frame used for engineering and vegetation on the shore, etc. This paper takes the tetrahedron-like penetrating frame and vegetation for example, summarizes research on the behavior of water flow and sediment affected by permeable structures, discusses the similarities and differences as well as different effects of the functions of the solid structures and permeable structures, and finally concludes the features of application of permeable structures.

scholarly journals A Self-Powered Medical Device for Blood Irradiation Therapy

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Avigail D. Amsel ◽  
Arkady Rudnitsky ◽  
Zeev Zalevsky
Keyword(s):  
Biomedical Applications ◽  
Power Source ◽  
Wireless Devices ◽  
Hydraulic Flow ◽  
Flow Energy ◽  
Irradiation Therapy ◽  
New Type ◽  
Blood Irradiation ◽  
Self Powered ◽  
Micromechanical Devices

Implantable wireless devices may allow localized real-time biomedical treating and monitoring. However, such devices require a power source, which ideally, should be self-powered and not battery dependent. In this paper, we present a novel self-powered light therapeutic device which is designed to implement blood irradiation therapy. This device is self-powered by a miniaturized turbine-based generator which uses hydraulic flow energy as its power source. The research presented in this paper may become the first step towards a new type of biomedical self-operational micromechanical devices deployed for biomedical applications.

scholarly journals PENGARUH VARIASI JARAK ANTARA KATUP LIMBAH DENGAN KATUP PENGHANTAR TERHADAP EFISIENSI POMPA HIDRAM PVC 2 INCHI PARAREL

2020 ◽  
Vol 5 (1) ◽  
pp. 37-41
Author(s):  
Defmit B.N Riwu ◽  
Dominggus G. H. Adoe ◽  
Seprianus Rudolf Membubu
Keyword(s):  
Potential Energy ◽  
Water Flow ◽  
Driving Force ◽  
Water Sources ◽  
Long Distance ◽  
Flow Energy

Abstrak Pompa hidram merupakan salah satu jenis pompa yang tidak membutuhkan energi listrik atau bahan bakar. Energi potensial dari sumber air yang dialirkan sebagai daya penggerak. Dimana alat ini bekerja pada sumber air yang memiliki kemiringan, sebab alat ini membutuhkan energi terjunan air dari ketinggian lebih besar atau sama dengan 1 meter yang masuk ke dalam pompa. Dalam pengoperasinya pompa ini mempunyai keuntungan yaitu dengan menggunakan pipa PVC yang dengan sederhana merancangnya juga dapat dibuat dengan peralatan bengkel. Penelitian ini dilakukan untuk mengetahui pengaruh variasi jarak antara katup limbah dengan katup penghantar terhadap efisiensi pompa hydram. Metode yang digunakan adalah experimen lapangan dengan beberapa perubahan pada variasi jarak antara katup limbah dengan katup penghantar adalah 10 cm, 20 cm,30 cm. Dari hasil penelitian bahwa debit pemompaan optimum mengalami peningkatan pada ukuran pendek yaitu 0,00011633 m3/detik, debit limbah semakin besar pada ukuran jarak panjang yaitu 0,00086013 m3/detik, dengan jumlah ketukan terjadi yaitu 84 kali. Sehingga efisiensi hidram menurut teori d’aubussion diperoleh hasil tertinggi yaitu 71,02 %. Kata Kunci: Pompa hidram 2 inchi, double katup limbah, katup penghantar, dan efisiensi D’aubuission Abstract Hydram pump is one type of pump that does not require electricity or fuel. Potential energy from water sources that is channeled as a driving force. Where this tool works at a source of water that has a slope, because this tool requires water flow energy from a height greater than or equal to 1 meter into the pump. In the operation of this pump has the advantage of using PVC pipes which are simple to design can also be made with workshop equipment. This research was conducted to determine the effect of variations in the distance between the waste valve and the delivery valve on the efficiency of the hydram pump. The method used is a real experimental with some changes in the variation of the distance between the waste valve and the delivery valve is 10 cm, 20 cm, 30 cm. From the results of the study that the optimum pumping discharge increased in the short size of 0.00011633 m3 / second, the greater the discharge of waste at a long-distance size of 0.00086013 m3 / second, with the number of beats occurring at 84 times. So that the efficiency of hydrams according to the theory of 'aubussion obtained the highest yield of 71.02%. Keywords: 2-inch hydram pump, double valve waste, delivery valve, and D'obuission efficiency.

An Underwater Magnetically Coupled Bistable Vibration Energy Harvester Using Wings

2019 ◽  
Author(s):  
Hong-Xiang Zou ◽  
Ke-Xiang Wei ◽  
Lin-Chuan Zhao ◽  
Wen-Ming Zhang ◽  
Lei Zuo ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Water Flow ◽  
Energy Harvester ◽  
High Reliability ◽  
Average Power ◽  
Vibration Energy ◽  
Coupling Mechanism ◽  
Vibration Energy Harvester ◽  
Water Flow Velocity ◽  
Flow Energy

Abstract Piezoelectric flow energy harvesting can be a potential way to yield endless electrical energy for small mechanical systems and wireless sensors. We propose a novel magnetically coupled bistable vibration energy harvester using wings for the applications in the water environment. The water flow energy can be harvested through the induced vibration of wings. The flextensional transducer can be packaged conveniently by using non-contact magnetic coupling mechanism. The magnetic force is amplified by the flextensional structure and transferred to the piezoelectric layer, thereby achieving higher power density and better reliability. A prototype was fabricated and tested in a water flume, which attended a maximum power of about 400 μW and the average power of 55 μW at the water flow velocity of 4 m/s. No significant variation occurred to the performance of the harvester after five days of continuous operation in the water, which indicates that the magnetically coupled vibration energy harvesting method has high reliability in the underwater environment.

scholarly journals Occurrence, Classification and Formation Mechanisms of the Organic-Rich Clasts in the Upper Paleozoic Coal-Bearing Tight Sandstone, Northeastern Margin of the Ordos Basin, China

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2694
Author(s):  
Guanqun Yang ◽  
Wenhui Huang ◽  
Jianhua Zhong ◽  
Ningliang Sun
Keyword(s):  
Water Flow ◽  
Higher Plants ◽  
Ordos Basin ◽  
Formation Mechanisms ◽  
Tight Sandstone ◽  
Flow Energy ◽  
Sedimentary Environments ◽  
Upper Paleozoic ◽  
The Ordos Basin ◽  
Thin Interlayer

The detailed characteristics and formation mechanisms of organic-rich clasts (ORCs) in the Upper Paleozoic tight sandstone in the northeastern margin of the Ordos Basin were analyzed through 818-m-long drilling cores and logging data from 28 wells. In general, compared with soft-sediment clasts documented in other sedimentary environments, organic-rich clasts in coal-bearing tight sandstone have not been adequately investigated in the literature. ORCs are widely developed in various sedimentary environments of coal-bearing sandstone, including fluvial channels, crevasse splays, tidal channels, sand flats, and subaqueous debris flow deposits. In addition to being controlled by the water flow energy and transportation processes, the fragmentation degree and morphology of ORCs are also related to their content of higher plants organic matter. The change in water flow energy during transportation makes the ORCs show obvious mechanical depositional differentiation. Four main types of ORC can be recognized in the deposits: diamictic organic-rich clasts, floating organic-rich clasts, loaded lamellar organic-rich clasts, and thin interlayer organic-rich clasts. The relationship between energy variation and ORCs deposition continuity is rarely studied so far. Based on the different handling processes under the control of water flow energy changes, we propose two ORCs formation mechanisms: the long-term altering of continuous water flow and the short-term water flow acting triggered by sudden events.

Self-Powered Device Using Aligned Carbon Nanotube Arrays in Multi-Physics Fields

2011 ◽  
Vol 287-290 ◽  
pp. 1505-1508 ◽  
Author(s):  
Jiang Lei Lu ◽  
Guang Long Wang ◽  
Lian Feng Sun ◽  
Min Gao ◽  
Jian Hui Chen ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Air Flow ◽  
Solar Irradiation ◽  
Material Surface ◽  
Nanotube Arrays ◽  
Element Analysis ◽  
Flow Energy ◽  
Carbon Nanotube Arrays ◽  
In Series ◽  
Self Powered

A novel self-powered device based on the aligned carbon nanotube arrays (CNTA) in multi-physics fields has been put forward in this paper. Synthetically utilizing the photic, fluidic and thermic properties of carbon nanotubes, the multi-physical nanogenerators (MPNG) can generate electric currents when the solar irradiation and air flow synchronously effect on the material surface. Various MPNGs are connected in series to construct a unique truncated conus and cylinder shell structure in order to enhance the output voltage for self-powered electronic devices. The multi-physical power mechanism is formed by converting the solar and air flow energy to the thermoelectric effect. By the finite element analysis, the MPNG model including a pair of p-type and n-type CNTA elements is established, and its temperature and potential distribution are simulated. This self-powered device in multi-physics fields can be applied to a more complicated environment and has a fine prospect.

scholarly journals Conducting polymer PPy nanowire-based triboelectric nanogenerator and its application for self-powered electrochemical cathodic protection

2016 ◽  
Vol 7 (10) ◽  
pp. 6477-6483 ◽  
Author(s):  
Siwen Cui ◽  
Youbin Zheng ◽  
Jun Liang ◽  
Daoai Wang
Keyword(s):  
Conducting Polymer ◽  
Cathodic Protection ◽  
Triboelectric Nanogenerator ◽  
Ambient Environment ◽  
Impressed Current ◽  
Self Powered ◽  
Impressed Current Cathodic Protection

A novel triboelectric nanogenerator (TENG) was constructed with PPy nanowires (PPy NWs). By harvesting the energies in the ambient environment, the PPy NW-based TENG can act as a power supplier and provide extra electrons to the surface of the connected metals, forming effective impressed current cathodic protection.

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