A Drill Pipe‐Embedded Vibration Energy Harvester and Self‐Powered Sensor Based on Annular Type Triboelectric Nanogenerator for Measurement while Drilling System

Abstract

Measurement while drilling (MWD) system of offshore drill pipe is of great significance for safety production. It is greatly demanded to develop a sustainable power supply as well as self‐powered sensors for the MWD system. In this work, a drill pipe‐embedded annular type triboelectric nanogenerator (AT‐TENG) is proposed and systematically investigated, and it consists of an annular silicone rubber and a pair of electrodes. The design of the AT‐TENG allows the silicone rubber to contact and separate with the electrodes easily in a narrow space under arbitrary direction vibration to realize power generation. The experimental results show that the peak power density of AT‐TENG with single‐pair electrode reaches 63.7 W m−3 under the vibration frequency of 4 Hz and amplitude of 100 mm. The minimum peak voltage is >65 V within 360° lateral vibration range. The peak voltage achieves 351.62 V under the third‐order natural frequency. In addition, the amplitude and frequency obtained from the voltage signals exhibit linearly with those of actual vibration. The mean error between the frequency detected by AT‐TENG and actual frequency is <0.03%. Thus, the AT‐TENG can serve as an energy harvester and self‐powered vibration sensor.

Stiffness Modulation in Flexible Rotational Triboelectric Nanogenerators for Dual Enhancement of Power and Reliability

“…For the traditional full-bridge circuit, the proposed device could charge 4.7-330 µF filter capacitors to 136 V within 2-10 s. In addition, the electric energy from the FR-TENG could also be used to power a commercial thermo-hygrometer fulfilling all functions in Figure 7d (Supplementary Materials Video S2). Rigid-rigid 6.7 1.91 a [7] Rigid-rigid 2 3.25 [11] Rigid-rigid 10 2.28 [26] Rigid-flexible 16.7 0.002 a [27] Rigid-flexible 13 0.0004 a [28] Rigid-flexible 4 0.58 a [31] Rigid-flexible 5.4 4.4 [17] Flexible-flexible 2.5 0.02 a [29] Flexible-flexible 6 0.64 a [36] Flexible-flexible 1 0.3 [37] Flexible-flexible 3 0.8 This Work Flexible-flexible 9.6 18.75…”

“…The superb deformability of flexible materials significantly enhances the reliability of the triboelectric layers, and makes them highly compatible with most complex surfaces. Flexible rotation triboelectric nanogenerators (FR-TENGs) can be more agilely incorporated into applications like body moving [ 23 ], button pressing [ 24 ], machine lathing [ 25 ], geological drilling [ 26 , 27 , 28 ], etc. However, the contact force between flexible triboelectric layers is much smaller than that between their rigid counterparts, which is a key limiting factor for the relatively low output power of FR-TENGs.…”

Liquid Plug Motion Noninvasive Detecting in Opaque Microchannels via Grating Electrodes‐Based Liquid‐Solid Nanogenerator

“…Therefore, there's an urgent need in the field of microfluidics to identify a suitable sensor that can tackle the challenges associated with multiphase flow sensing technology. Since Wang's group introduced the triboelectric nanogenerator (TENG), [16] great strides have been made in power generation technology [17,18] and sensing methods [19][20][21] in various fields. A wide range of innovative applications for TENG-based self-powered energy have emerged in industry, [22] smart home furnishings, [23] and within healthcare.…”

High‐Speed Data Communication for Oil and Natural Gas Drilling Based on Triboelectric Nanogenerator

“…In previous studies, the output performance of a TENG for energy harvesting while drilling was tested in the laboratory. [32] In this paper, we design a self-powered while-drilling communications system based on a triboelectric nanogenerator and verify its feasibility in a laboratory. A drill pipe module is used for the test, as shown in Figure S9 (Supporting Information).…”