Download or read book Power Maximization for Pyroelectric Piezoelectric and Hybrid Energy Harvesting written by Murtadha A. Shaheen and published by . This book was released on 2016 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this dissertation consists of improving the efficiency of energy harvesting using pyroelectric and piezoelectric materials in a system by the proper characterization of electrical parameters, widening frequency, and coupling of both effects with the appropriate parameters. A new simple stand-alone method of characterizing the impedance of a pyroelectric cell has been demonstrated. This method utilizes a Pyroelectric single pole low pass filter technique, PSLPF. Utilizing the properties of a PSLPF, where a known input voltage is applied and capacitance Cp and resistance Rp can be calculated at a frequency of 1 mHz to 1 Hz. This method demonstrates that for pyroelectric materials the impedance depends on two major factors: average working temperature, and the heating rate. Design and implementation of a hybrid approach using multiple piezoelectric cantilevers is presented. This is done to achieve mechanical and electrical tuning, along with bandwidth widening. In addition, a hybrid tuning technique with an improved adjusting capacitor method was applied. An toroid inductor of 700 mH is shunted in to the load resistance and shunt capacitance. Results show an extended frequency range up to 12 resonance frequencies (300% improvement) with improved power up to 197%. Finally, a hybrid piezoelectric and pyroelectric system is designed and tested. Using a voltage doubler, circuit for rectifying and collecting pyroelectric and piezoelectric voltages individually is proposed. The investigation showed that the hybrid energy is possible using the voltage doubler circuit from two independent sources for pyroelectrictity and piezoelectricity due to marked differences of optimal performance.

Download or read book Piezoelectric Energy Harvesting written by Mohammad Adnan Ilyas and published by Momentum Press. This book was released on 2018-03-22 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental pollution has been one of the main challenges for sustainable development. Piezoelectric materials can be used as a means of transforming ambient vibrations into electrical energy to power devices. The focus is on an alternative approach to scavenge energy from the environment. This book presents harvesting methodologies to evaluate the potential effectiveness of different techniques and provides an overview of the methods and challenges of harvesting energy using piezoelectric materials. Piezoelectric energy harvesters have many applications, including sensor nodes, wireless communication, microelectromechanical systems, handheld devices, and mobile devices. The book also presents a new approach within piezoelectric energy harvesting using the impact of raindrops. The energy-harvesting model presented is further analyzed for single-unit harvester and an array of multiple harvesters to maximize the efficiency of the device.

Download or read book Energy Harvesting with Piezoelectric and Pyroelectric Materials written by Nantakan Muensit and published by Trans Tech Publications Ltd. This book was released on 2011-02-21 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume is indexed by Thomson Reuters BCI (WoS). The purpose of this book is to present the current state of knowledge in the field of energy harvesting using piezoelectric and pyroelectric materials. The book is addressed to students and academics engaged in research in the fields of energy harvesting, material sciences and engineering. Scientists and engineers who are working in the area of energy conservation and renewable energy resources should find it useful as well. Explanations of fundamental physical properties such as piezoelectricity and pyroelectricity are included to aid the understanding of the non-specialist. Specific technologies and particular applications are also presented. This book is divided into two parts, each subdivided into chapters. Part I concerns fundamentals. Chapter 1 reports the discoveries, standard issues and various materials involved with energy harvesting. Chapter 2 presents electromechanical models enabling an understanding of how energy harvesting systems behave. The vibration theory and designs for various piezoelectric energy harvesting structures are addressed in Chapter 3. Chapter 4 describes the analytical expressions for the energy flow in piezoelectric energy harvesting systems, in particular, with cymbal and flexible transducers. A description of the conversion enhancement for powering low-energy consumption devices is presented in Chapter 5. Part II concerns Applications and Case Studies. It begins with Chapter 6, in which the principles and applications of piezoelectric nanogenerators are reported. Chapter 7 describes the utilization of energy harvesting from low-frequency energy sources. There are more ways to use vibrational energy than waste heat. However, Chapter 8 presents the fundamentals of an important application of heat conversion with a copolymer. Finally, commercial energy harvesting products and a technological forecast are provided in Chapter 9.

Download or read book Piezoelectric Energy Harvesting written by Alper Erturk and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transformation of vibrations into electric energy through the use of piezoelectric devices is an exciting and rapidly developing area of research with a widening range of applications constantly materialising. With Piezoelectric Energy Harvesting, world-leading researchers provide a timely and comprehensive coverage of the electromechanical modelling and applications of piezoelectric energy harvesters. They present principal modelling approaches, synthesizing fundamental material related to mechanical, aerospace, civil, electrical and materials engineering disciplines for vibration-based energy harvesting using piezoelectric transduction. Piezoelectric Energy Harvesting provides the first comprehensive treatment of distributed-parameter electromechanical modelling for piezoelectric energy harvesting with extensive case studies including experimental validations, and is the first book to address modelling of various forms of excitation in piezoelectric energy harvesting, ranging from airflow excitation to moving loads, thus ensuring its relevance to engineers in fields as disparate as aerospace engineering and civil engineering. Coverage includes: Analytical and approximate analytical distributed-parameter electromechanical models with illustrative theoretical case studies as well as extensive experimental validations Several problems of piezoelectric energy harvesting ranging from simple harmonic excitation to random vibrations Details of introducing and modelling piezoelectric coupling for various problems Modelling and exploiting nonlinear dynamics for performance enhancement, supported with experimental verifications Applications ranging from moving load excitation of slender bridges to airflow excitation of aeroelastic sections A review of standard nonlinear energy harvesting circuits with modelling aspects.

Download or read book Hybrid Piezo pyroelectric Energy Harvesting from Pavement written by Jie Hu (Civil engineer) and published by . This book was released on 2016 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the U.S., there are over 4 million miles (6 million km) of roadways and more than 250 million registered vehicles. The energy lost in the pavement system due to traffic-induced vibration and deformation is enormous. If effectively harvested, such waste energy can serve as an alternative sustainable energy source that can be easily integrated to the transportation system. To harness this forms of energy, the common approach is to utilize a piezoelectric module, which generates electricity when strained. In this thesis, literature review based on different energy harvesting methods has been made.The potential of PVDF, which is a piezoelectric as well as pyroelectric polymer material, is investigated as a potential piezoelectric energy harvester integrated in pavement systems. However, the potential of PVDF as a hybrid piezo-pyroelectric energy harvester has been seldom studied. Through series of well controlled experiments, it is found that there exists interesting coupling phenomenon between piezoelectric and pyroelectric effects of PVDF: the voltage generated by simultaneous mechanical and thermal stimulations is the sum of voltages generated by separate stimulations. In addition, an estimation of power generation through piezoelectric and pyroelectric effect is conducted. The overall effects of temperature on hybrid piezo-pyroelectric energy harvesting piezo and pyro constant varies with temperature are discussed in the end.

Download or read book Power Enhancement for Piezoelectric Energy Harvesting Systems written by Wahied G. Ali Abdelaal and published by LAP Lambert Academic Publishing. This book was released on 2013-01 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezoelectric energy harvester is an electromechanical device. It captures the environmental vibrations energy and converts it to electrical power. The generated power can energize wireless sensor nodes and tiny electronic devices. This technology is used to design self powered or "battery-less" microelectronic devices which have started to be available in the commercial market. In this work, the design parameters to maximize the power output are investigated. The analytical models and parametric identifications are developed for the piezoelectric bimorph structures. Power analysis to investigate the necessary conditions for optimization is achieved. The simulation results are carried out using PowerSim and Matlab softwares. The experimental work using LabVIEW software validated the main results and highlighted the concluded remarks. This book helps the engineers and researchers who are working in piezoelectric energy harvesting to understand and to develop their applications more effectively.

Download or read book Energy Harvesting Technologies written by Shashank Priya and published by Springer Science & Business Media. This book was released on 2008-11-28 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy Harvesting Technologies provides a cohesive overview of the fundamentals and current developments in the field of energy harvesting. In a well-organized structure, this volume discusses basic principles for the design and fabrication of bulk and MEMS based vibration energy systems, theory and design rules required for fabrication of efficient electronics, in addition to recent findings in thermoelectric energy harvesting systems. Combining leading research from both academia and industry onto a single platform, Energy Harvesting Technologies serves as an important reference for researchers and engineers involved with power sources, sensor networks and smart materials.

Download or read book Energy Harvesting with Functional Materials and Microsystems written by Madhu Bhaskaran and published by CRC Press. This book was released on 2017-12-19 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: For decades, people have searched for ways to harvest energy from natural sources. Lately, a desire to address the issue of global warming and climate change has popularized solar or photovoltaic technology, while piezoelectric technology is being developed to power handheld devices without batteries, and thermoelectric technology is being explored to convert wasted heat, such as in automobile engine combustion, into electricity. Featuring contributions from international researchers in both academics and industry, Energy Harvesting with Functional Materials and Microsystems explains the growing field of energy harvesting from a materials and device perspective, with resulting technologies capable of enabling low-power implantable sensors or a large-scale electrical grid. In addition to the design, implementation, and components of energy-efficient electronics, the book covers current advances in energy-harvesting materials and technology, including: High-efficiency solar technologies with lower cost than existing silicon-based photovoltaics Novel piezoelectric technologies utilizing mechanical energy from vibrations and pressure The ability to harness thermal energy and temperature profiles with thermoelectric materials Whether you’re a practicing engineer, academician, graduate student, or entrepreneur looking to invest in energy-harvesting devices, this book is your complete guide to fundamental materials and applied microsystems for energy harvesting.

Download or read book Low Grade Thermal Energy Harvesting written by Shiren Wang and published by Woodhead Publishing. This book was released on 2022-03-22 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-Grade Thermal Energy Harvesting: Advances in Thermoelectrics, Materials, and Emerging Applications provides readers with fundamental and key concepts surrounding low-grade thermal energy conversion while also reviewing the latest research directions. The book covers the most promising and emerging technologies for low-grade heat recovery, harvesting and conversion, including wearable thermoelectrics and organic thermoelectrics. Each chapter includes key materials, principles, design and fabrication strategies for low-grade heat recovery. Special attention on emerging materials such as organic composites, 2D materials and nanomaterials are also included. The book emphasizes materials and device structures that enable the powering of wearable electronics and consumer electronics. The book is suitable for materials scientists and engineers in academia and R&D in manufacturing, industry, energy and electronics. Introduces key concepts and fundamental principles of low-grade thermal energy harvesting, storage and conversion Provides an overview on key materials, design principles and fabrication strategies for devices for low energy harvesting applications Focuses on materials and device designs that enable wearable thermoelectrics and flexible electronics applications

Download or read book Hybridized and Coupled Nanogenerators written by Ya Yang and published by John Wiley & Sons. This book was released on 2021-02-08 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to efficiently scavenge multi-energies from the surrounding environment to power some electronic devices and realize self-powered sensing! With the advantages of high-integration level, low cost, and high-conversion efficiency, hybridized nanogenerators have many potential applications in multi-energy scavenging and sensor fields. This book offers a comprehensive review of the design, performance, and applications of hybridized and coupled nanogenerators. The author a noted expert on the topic explores the various new hybridized and multi-effects coupled nanogenerators. The book examines the current approaches of improving electric generation performance and offers an introduction to the applications of hybridized nanogenerators in energy harvesting and sensing. This technology has proven to be highly applicable in multi-energy scavenging and self-powered sensor fields. This book includes: Examines the potential applications of hybridized and coupled nanogenerators in multi-energy scavenging and sensor fields Covers the principles of device design Explores the most current approaches to improve performance Reviews various multi-effects coupled nanogenerators and their potential applications Written for materials scientists, engineering scientists, electronics engineers, bioengineers, sensor developers, and sensor industry professionals, This book is a guide to hybridized and coupled nanogenerators that achieve the maximum utilization of multi-type and stable energies.

Download or read book Design Fabrication and Testing of Piezoelectric Energy Harvesters written by Ashok K. Batra and published by . This book was released on 2018 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Spotlight describes the configurations and performance optimization of piezoelectric energy harvesters. It presents in detail all of the relevant parameters to test the performance of piezoelectric and pyroelectric energy harvesters, including the latest measurement techniques. The specifications of state-of-the-art instruments are included. The text serves as a step-by-step instruction manual that will help readers to set up their own laboratory to design, characterize, and analyze the performance of energy harvesters. LabVIEW software is utilized to control instruments and acquire data from a piezoelectric energy harvester test station.

Download or read book Nano Tools and Devices for Enhanced Renewable Energy written by Sheila Devasahayam and published by Elsevier. This book was released on 2021-07-09 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nano Tools and Devices for Enhanced Renewable Energy addresses key challenges faced in major energy sectors as the world strives for more affordable and renewable energy sources. The book collates and discusses the latest innovations in nanotechnology for energy applications, providing a comprehensive single resource for those interested in renewable energy. Chapters cover a range of nano tools and devices, as well as renewable energy types and sources, from energy storage to geothermal energy. Materials scientists, engineers and environmental scientists interested in the application and evaluation of innovative nano tools and devices in renewable energy technologies will find this book very valuable. Nanotechnology can help to reduce energy consumption and lessen toxicity burdens on the environment. Despite the rapid growth of development and use of nanotechnology in the modern world, there are still challenges faced by researchers and development groups in industry and academia. This book helps solve the problems of reduced accessibility of relevant research, presenting important information on adverse impacts on the environment, human health, safety and sustainability. Covers a range of nano tools and devices, as well as renewable energy types and sources, from energy storage to geothermal energy Offers an insight into the commercialization and regulatory aspects of nanotechnology for renewable energy Helps solve the problems of reduced accessibility of relevant information, presenting important research on adverse impacts on the environment, human health, safety and sustainability

Download or read book Design Fabrication and Testing of Piezoelectric Energy Harvesters written by A. K. Batra and published by . This book was released on 2018 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Spotlight describes the configurations and performance optimization of piezoelectric energy harvesters. It presents in detail all of the relevant parameters to test the performance of piezoelectric and pyroelectric energy harvesters, including the latest measurement techniques. The specifications of state-of-the-art instruments are included. The text serves as a step-by-step instruction manual that will help readers to set up their own laboratory to design, characterize, and analyze the performance of energy harvesters. LabVIEW software is utilized to control instruments and acquire data from a piezoelectric energy harvester test station.

Download or read book Flexible and Stretchable Triboelectric Nanogenerator Devices written by Mengdi Han and published by John Wiley & Sons. This book was released on 2019-10-21 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book starts with the fundamentals of triboelectric nanogenerators (TENGs), and continues through to fabrication technologies to achieve flexible and stretchable. Then self-powered flexible microsystems are introduced and application examples are presented, including TENG-based active sensors, TENG-powered actuators, artificial intelligence and integrated systems.

Download or read book Piezoelectric Energy Harvesting written by Shahriar Bagheri and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezoelectric Energy Harvesters (PEH) are complex dynamic electromechanical systems. As such, derivation of an accurate model that can describe system's behavior under different operating conditions is challenging. Moreover, the interconnection between the piezoelectric transducer and any forms of power conditioning and storage further complicates the modeling process. This thesis tackles the problem of modeling the transient operation of a PEH during the charging process of an external storage device through electrical interfacing circuits. A semi-theoretical model is proposed based on the Euler-Bernoulli beam theory. The model takes into account the electromechanical coupling effects of the piezoelectric material, as well as the dynamic process of charging an external storage capacitor. The effects of an standard interfacing circuit with diode bridge rectifier and a non-linear synchronous switching circuit on the transient charging dynamics are modeled and comprehensively studied. Additionally, an experimental test setup is developed to validate the efficacy of the developed model and to further investigate the effect of different interfacing circuits on the energy harvesting system. Furthermore, the problem of finding the optimal design parameters for a PEH is considered. A new simulation-based optimization procedure is proposed with the goal of acquiring the optimal geometric and circuit design parameters that lead to higher energy harvesting efficiency and also enhance the obtained electrical power. The basis of the optimization platform is the developed semi-theoretical model of the energy harvesting system. In order to avoid the time and space (memory) complexities during the computer optimization caused by the expensive-to-evaluate Objective Function (OF) (i.e. simulation model) combination of Artificial Intelligence (AI) and Evolutionary Algorithm (EA) is used to facilitate the optimization process, while maintaining the required accuracy. More precisely, a computationally efficient Neural Network (NN) model is first trained based on a set of training data obtained from the simulation model. Performance and accuracy of the NN training is studied using available statistical methods. Second, a Genetic Algorithm (GA) optimization performs a block-box optimization procedure, using the trained NN model for OF evaluation. Finally a thorough analysis of the optimal design parameters obtained from the optimization process is provided.

Download or read book Power Harvesting Via Smart Materials written by A. K. Batra and published by SPIE-International Society for Optical Engineering. This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the fundamentals, fabrication, testing, and modelling of ambient energy harvesters based on three main streams of energy-harvesting mechanisms: piezoelectrics, ferroelectrics, and pyroelectrics. It addresses their commercial and biomedical applications, as well as the latest research results.

Download or read book Simple Techniques for Piezoelectric Energy Harvesting Optimization written by Yang Li and published by . This book was released on 2014 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Piezoelectric energy harvesting is a promising technique for battery-less miniature electronic devices. The object of this work is to evaluate simple and robust approaches to optimize the extracted power. First, a lightweight equivalent circuit derived from the Mason equivalent circuit is proposed. It's a comprehensive circuit, which is suitable for piezoelectric seismic energy harvester investigation and power optimization. The optimal charge impedance for both the resistive load and complex load are given and analyzed. When complex load type can be implemented, the power output is constant at any excitation frequency with constant acceleration excitation. This power output is exactly the maximum power that can be extracted with matched resistive load without losses. However, this wide bandwidth optimization is not practical due to the high sensitivity the reactive component mismatch. Another approach to improve power extraction is the capability to implement a network of piezoelectric generators harvesting on various frequency nodes and different locations on a host structure. Simulations are conducted in the case of direct harvesting on a planar structure excited by a force pulse. These distributed harvesters, equipped with nonlinear technique SSHI (Synchronized Switching Harvesting on Inductor) devices, were connected in parallel, series, independently and other complex forms. The comparison results showed that the energy output didn't depend on the storage capacitor connection method. However, only one set of SSHI circuit for a whole distributed harvesters system degrades the energy scavenging capability due to switching conflict. Finally a novel non-linear approach is proposed to allow optimization of the extracted energy while keeping simplicity and standalone capability. This circuit named S3H for “ Synchronized Serial Switch Harvesting” does not rely on any inductor and is constructed with a simple switch. The power harvested is more than twice the conventional technique one on a wide band of resistive load.