Increasing demand for energy, decreasing conventional fossil-fuel energy sources, and environmental concerns are driving forces toward renewable energy sources. Energy sources such as oil, coal, and gas are being quickly depleted or have insufficient reserves for future demands. Moreover, they are not environmental friendly due to greenhouse gas emissions and other pollutants. Nuclear energy has a great establishment cost along with a number of safety concerns. On the other hand, hydroelectric power plants are inexpensive but have a limited life span and mostly cannot be utilized due to geo-political reasons and seasonal irregularity of available water. Therefore, the contribution from renewable energy sources is increasing. Since the world today is experiencing a great shortage of energy, it should be captured, stored, conditioned, and utilized by alternative techniques. Energy demand will always increase with the increase in technological developments while conventional sources will diminish and environmental concerns will gain increased attention.
Energy harvesting, also called energy scavenging, is a concept by which energy is captured, stored, and utilized using various sources by employing interfaces, storage devices, and other units. Unlike the conventional electric power generation systems, in the renewable energy harvesting concept, fossil fuels are not used and the generation units can be decentralized. Therefore, the transmission and distribution losses can be significantly reduced. There are many sources for harvesting energy. Solar, wind, ocean, hydro, electromagnetic, electrostatic, thermal, vibration, and human body motion are renewable sources of energy. Economic, environmental, and geopolitical constraints on global conventional energy resources started forcing the nation to accelerate energy harvesting from renewable sources. Therefore, advanced technical methods should be developed to increase the efficiency of devices in harvesting energy from various environmentally friendly resources and converting them into electrical energy. These developments have sparked interest in many communities such as science, engineering, and education to develop more energy harvesting applications and new curriculums for renewable energy and energy harvesting topics. This book describes various energy harvesting technologies such as solar, wind, ocean wave, ocean tidal, and ocean thermal energy harvesting along with many different topologies and many types of power electronic interfaces for the utilization and/or grid connection of energy harvesting applications. In addition, some simulation models are developed throughout the book in order to build an insight to system analysis and modeling.
Features
- Focuses on solar, wind, ocean wave, ocean tidal, and ocean thermal energy harvesting
- Discusses power electronic interfaces for energy harvesting components, including PVs, turbines, and generators
- Covers the technical aspects of renewable energy systems
- Presents simulation models of the systems
- Assesses the environmental impact of generating energy from the ocean
- Explores the design of applications, such as a solar-powered boat, satellite energy system, and unmanned aerial vehicle as well as the Wave Dragon floating offshore converter, Wave Star device, and a magnetohydrodynamics wave energy generator
Summary
Also called energy scavenging, energy harvesting captures, stores, and uses "clean" energy sources by employing interfaces, storage devices, and other units. Unlike conventional electric power generation systems, renewable energy harvesting does not use fossil fuels and the generation units can be decentralized, thereby significantly reducing transmission and distribution losses. But advanced technical methods must be developed to increase the efficiency of devices in harvesting energy from environmentally friendly, "green" resources and converting them into electrical energy.
Recognizing this need, Energy Harvesting: Solar, Wind, and Ocean Energy Conversion Systems describes various energy harvesting technologies, different topologies, and many types of power electronic interfaces for stand-alone utilization or grid connection of energy harvesting applications. Along with providing all the necessary concepts and theoretical background, the authors develop simulation models throughout the text to build a practical understanding of system analysis and modeling.
With a focus on solar energy, the first chapter discusses the I-V characteristics of photovoltaic (PV) systems, PV models and equivalent circuits, sun tracking systems, maximum power point tracking systems, shading effects, and power electronic interfaces for grid-connected and stand-alone PV systems. It also presents sizing criteria for applications and modern solar energy applications, including residential, vehicular, naval, and space applications. The next chapter reviews different types of wind turbines and electrical machines as well as various power electronic interfaces. After explaining the energy generation technologies, optimal operation principles, and possible utilization techniques of ocean tidal energy harvesting, the book explores near- and offshore approaches for harvesting the kinetic and potential energy of ocean waves. It also describes the required absorber, turbine, and generator types, along with the power electronic interfaces for grid connection and commercialized ocean wave energy conversion applications. The final chapter deals with closed, open, and hybrid-cycle ocean thermal energy conversion systems.
download links
http://cutt.us/5exl
http://cutt.us/VkLKh
MIRROR
0 comments:
Post a Comment