scholarly journals Metamaterial-Based Sub-Microwave Electromagnetic Field Energy Harvesting System

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3370
Author(s):  
Mikołaj Nowak
Keyword(s):  
Electromagnetic Field ◽  
Energy Harvesting ◽  
Low Cost ◽  
Test System ◽  
Electromagnetic Properties ◽  
Field Energy ◽  
Simulation Research ◽  
Microwave Radio ◽  
Harvesting Systems ◽  
Energy Harvesting System

This paper presents the comprehensive analysis of the sub-microwave, radio frequency band resonant metastructures’ electromagnetic properties with a particular emphasis on the possibility of their application in energy harvesting systems. Selected structures based on representative topologies of metamaterials have been implemented in the simulation environment. The models have been analyzed and their substitute average electromagnetic parameters (absorption, reflection, transmission and homogenized permeability coefficients) have been determined. On the basis of simulation research, prototypes of electromagnetic field two-dimensional absorbers have been manufactured and verified experimentally in the proposed test system. The absorber has been implemented as a component of the low-cost energy harvesting system with a high-frequency rectifier and a voltage multiplier, obtaining usable DC energy from the electromagnetic field in certain frequency bands. The energy efficiency of the system has been determined and the potential application in energy harvesting technology has been assessed.

scholarly journals Analytical research on energy harvesting systems for fluidic soft actuators

2018 ◽  
Vol 15 (1) ◽  
pp. 172988141875587 ◽  
Author(s):  
Tao Wang ◽  
Wei Song ◽  
Shiqiang Zhu
Keyword(s):  
Energy Harvesting ◽  
Dynamic Models ◽  
Original System ◽  
Control Performance ◽  
Harvesting Systems ◽  
Energy Harvesting System ◽  
Analytical Research ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency ◽  
Soft Actuators

Energy consumption has significant influence on the working time of soft robots in mobile applications. Fluidic soft actuators usually release pressurized fluid to environment in retraction motion, resulting in dissipation of considerable energy, especially when the actuators are operated frequently. This article mainly explores the potential and approaches of harvesting the energy released from the actuators. First, the strain energy and pressurized energy stored in fluidic soft actuators are modeled based on elastic mechanics. Then, taking soft fiber-reinforced bending actuators as case study, the stored energy is calculated and its parametric characteristics are presented. Finally, two energy harvesting schematics as well as dynamic models are proposed and evaluated using numerical analysis. The results show that the control performance of the energy harvesting system becomes worse because of increased damping effect and its energy harvesting efficiency is only 14.2% due to the losses of energy conversion. The energy harvesting system in pneumatic form is a little more complex. However, its control performance is close to the original system and its energy harvesting efficiency reaches about 44.1%.

Energy Management in a Multi-Source Energy Harvesting IoT System

2020 ◽  
Vol 13 (2) ◽  
pp. 42-59
Author(s):  
Ritu Garg ◽  
Neha Garg
Keyword(s):  
Energy Harvesting ◽  
Energy Management ◽  
Simulation Analysis ◽  
Scheduling Algorithm ◽  
Time Frame ◽  
Neutral System ◽  
Harvesting Systems ◽  
Energy Harvesting System ◽  
Harvesting Techniques ◽  
Simulation Results

To guarantee the uninterrupted operation of an IoT node, IoT nodes are installed with energy harvesting techniques to prolong their lifetime and recharge their batteries. Mostly energy harvesting systems collect energy from sunlight and wind. However, the energy harvested from the sunlight is non-continuous and energy harvested from the wind is insufficient for continuously powering an IoT node. Thus, to resolve this problem, authors proposed an energy harvesting system namely SWEH which harvests energy from solar light and wind. In this article, authors proposed a scheduling algorithm to balance the energy produced by SWEH and the energy consumption of an IoT node that results in the energy neutral system. Results from simulation analysis clearly manifest that the proposed SWEH system extracts more energy as compared to energy produced by a single solar panel or wind turbine. With the help of simulation results, authors also show that the proposed algorithm leaves the system in energy neutral state at the end of particular time frame.

Modeling of Low Frequency Multi-Source Energy Harvesting Systems

2011 ◽  
Author(s):  
Christopher Green ◽  
Ugur Erturun ◽  
Matthew Burnette ◽  
Karla Mossi
Keyword(s):  
Energy Harvesting ◽  
Systems Approach ◽  
Impedance Matching ◽  
Low Frequency ◽  
Simulation Software ◽  
Lumped Parameter ◽  
Harvesting Systems ◽  
Present Design ◽  
Energy Harvesting System ◽  
Mixed Circuit

Accurate modeling of multi-source harvesters present design challenges such as the integration of mixed circuit topologies, passive versus active topologies, impedance matching, and optimization. Commercial modeling and simulation software packages offer solutions but often times are not comprehensive enough. In this work P-Spice, Simulink, and Comsol Multiphysics were used to model a multi-source energy harvesting system that incorporates the energy producing capabilities of the piezoelectric, the pyroelectric, and thermoelectric effect. A systems approach that models the material properties of the converters, the power electronics and storage was implemented. Low frequency experimental data from PZT based harvesters and thermoelectric generators were used to produce lumped parameter models. It was demonstrated that within 12% that combining effects may contribute to continuous energy harvesting operation.

scholarly journals Energy harvesting from enzymatic biowaste reaction through polyelectrolyte functionalized 2D nanofluidic channels

2016 ◽  
Vol 7 (6) ◽  
pp. 3645-3648 ◽  
Author(s):  
Lei Lin ◽  
Ling Zhang ◽  
Lida Wang ◽  
Jinghong Li
Keyword(s):  
Energy Harvesting ◽  
Low Cost ◽  
Ionic Currents ◽  
Two Dimensional ◽  
Nanofluidic Channels ◽  
Energy Harvesting System ◽  
High Output

We report a graphene-based energy harvesting system powered by enzymatic biowaste reaction through two-dimensional (2D) nanofluidic channels; the integrated 2D nanofluidic generator shows distinct advantages such as flexibility, low cost, and high output in ionic currents.

DESIGN OF INTEGRATED ENERGY HARVESTING SYSTEM ON WINDOW BUILDING USING SOLAR PV

2019 ◽  
Author(s):  
Rishal Asri ◽  
Koko Friansa
Keyword(s):  
Energy Harvesting ◽  
Solar Energy ◽  
Electrical Energy ◽  
City Government ◽  
Solar Pv ◽  
Energy Potential ◽  
Solar Energy Harvesting ◽  
Harvesting Systems ◽  
Energy Harvesting System ◽  
Physical Comfort

The current building is expected to provide physical comfort, such as room comfort, temperature, sound and lighting. Some equipment is needed that requires electrical energy to provide physical comfort. Like a room cooling device to provide thermal comfort, a room lamp to provide lighting comfort. The ITERA building built by the City Government of Bandar Lampung has high solar energy potential. While the electricity source still uses diesel fuel. The potential for solar energy radiation is used to become electrical energy by using glass windows as the foundation for installing solar energy harvesting systems using solar PV.

scholarly journals Energy Harvesting Technologies for Achieving Self-Powered Wireless Sensor Networks in Machine Condition Monitoring: A Review

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4113 ◽  
Author(s):  
Xiaoli Tang ◽  
Xianghong Wang ◽  
Robert Cattley ◽  
Fengshou Gu ◽  
Andrew Ball
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Energy Harvesting ◽  
Condition Monitoring ◽  
Wireless Sensor ◽  
Energy Sources ◽  
Field Energy ◽  
Machine Condition ◽  
Machine Condition Monitoring ◽  
Harvesting Systems

Condition monitoring can reduce machine breakdown losses, increase productivity and operation safety, and therefore deliver significant benefits to many industries. The emergence of wireless sensor networks (WSNs) with smart processing ability play an ever-growing role in online condition monitoring of machines. WSNs are cost-effective networking systems for machine condition monitoring. It avoids cable usage and eases system deployment in industry, which leads to significant savings. Powering the nodes is one of the major challenges for a true WSN system, especially when positioned at inaccessible or dangerous locations and in harsh environments. Promising energy harvesting technologies have attracted the attention of engineers because they convert microwatt or milliwatt level power from the environment to implement maintenance-free machine condition monitoring systems with WSNs. The motivation of this review is to investigate the energy sources, stimulate the application of energy harvesting based WSNs, and evaluate the improvement of energy harvesting systems for mechanical condition monitoring. This paper overviews the principles of a number of energy harvesting technologies applicable to industrial machines by investigating the power consumption of WSNs and the potential energy sources in mechanical systems. Many models or prototypes with different features are reviewed, especially in the mechanical field. Energy harvesting technologies are evaluated for further development according to the comparison of their advantages and disadvantages. Finally, a discussion of the challenges and potential future research of energy harvesting systems powering WSNs for machine condition monitoring is made.

scholarly journals Low profile microstrip fed printed antenna for portable RF energy harvesting system

2018 ◽  
Vol 7 (2) ◽  
pp. 828
Author(s):  
Rajasekhar Alladi ◽  
Praveen V. Naidu ◽  
Raveendra P ◽  
Srinivasa Reddy Kotha ◽  
Siva Charan ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Microstrip Antenna ◽  
Low Cost ◽  
Printed Antenna ◽  
Rf Energy Harvesting ◽  
Wireless Applications ◽  
Low Profile ◽  
Portable System ◽  
Energy Harvesting System ◽  
Rf Energy

This work presents, a printed wideband microstrip antenna that can be used for portable RF energy harvesting applications. The antenna is designed, simulated and validated using 3D electromagnetic HFSS simulator. The targeted frequency band of operations are from 0.825 GHz to 1.05 GHz for catering GSM/3G wireless applications. Following the antenna design in the HFSS software, the structure has been fabricated on low cost substrate FR4 and the structure performance is analyzed experimentally. The achieved wideband, omni directional patterns with constant gain monopole antenna can be suitable for all portable system applications.

Entwicklung und Optimierung eines piezoelektrischen Energy-Harvesting-Systems zur Energieversorgung eines Güterverfolgungssystems im Logistikbereich

2018 ◽  
Vol 85 (11) ◽  
pp. 645-657 ◽  
Author(s):  
Philipp Dorsch ◽  
Dominik Gedeon ◽  
Manuel Weiß ◽  
Stefan J. Rupitsch
Keyword(s):  
Energy Harvesting ◽  
Energy Harvester ◽  
Finite Elemente ◽  
Harvesting Systems ◽  
Energy Harvesting System

Zusammenfassung Es wird die Entwicklung und Optimierung eines piezoelektrischen Energy-Harvesting-Systems zur autarken Energieversorgung einer Güterverfolgungsanwendung im Logistikbereich vorgestellt. Das Energy-Harvesting-System ist zusammen mit einem Funksender an einem zu ortenden Objekt angebracht. Durch Erschütterungen bei Bewegung des Objekts wird solange elektrische Energie gewandelt und zwischengespeichert, bis genügend vorhanden ist, um eine ortbare Funknachricht mit der Identifikationsnummer des Objekts zu senden. Zur Entwicklung des Harvesters werden zunächst Designkriterien für die optimale Geometrie biegebalkenbasierter piezoelektrischer Energy-Harvester anhand analytischer Methoden ermittelt. Im Anschluss wird das Harvesting-System auf die mechanische Anregung und den elektrischen Energiebedarf hin absolut dimensioniert. Um auch das nichtlineare elektrische Netzwerk zur Energieextraktion und dessen Rückwirkung auf den Harvester korrekt zu berücksichtigen, kommt hierbei ein spezieller modal reduzierter Simulationsansatz in Verbindung mit realistischen Finite-Elemente-Simulationen zum Einsatz. Anschließend wird die Energieextraktionsschaltung hinsichtlich ihrer Energieextraktions-Effizienz und der Einsetzbarkeit für verschiedene Anregungsszenarien ausgelegt. Die Funktionalität des Energy-Harvesting-Systems, bestehend aus Energy-Harvester, Energieextraktionsnetzwerk und Funkschaltung, konnte abschließend für verschiedene Anregungsszenarien nachgewiesen werden.

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