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Über dieses Buch

Waste Energy Harvesting overviews the latest progress in waste energy harvesting technologies, with specific focusing on waste thermal mechanical energies. Thermal energy harvesting technologies include thermoelectric effect, storage through phase change materials and pyroelectric effect. Waste mechanical energy harvesting technologies include piezoelectric (ferroelectric) effect with ferroelectric materials and nanogenerators. The book aims to strengthen the syllabus in energy, materials and physics and is well suitable for students and professionals in the fields.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Introduction

Energy is an integral part of our everyday lives. It is directly used to light and heat our homes, cook our meals, and travel to and from our workplaces.
Ling Bing Kong, Tao Li, Huey Hoon Hng, Freddy Boey, Tianshu Zhang, Sean Li

Chapter 2. Waste Mechanical Energy Harvesting (I): Piezoelectric Effect

Mechanical energy is one of the most ubiquitous energies that can be reused in our surroundings. The sources of mechanical energy can be a vibrating structure, a moving object, and vibration induced by flowing air or water. The energies related to induced vibrations or movement by flow of air and water at large-scale are wind energy and hydroelectric energy, respectively, which are not within the scope of this book. Instead, the mechanical energies here can be classified as so-called “low level” vibrations and movements. Such potential “low-level” vibrations and movements are summarized in Table 2.1 [1] and Table 2.2 [2].
Ling Bing Kong, Tao Li, Huey Hoon Hng, Freddy Boey, Tianshu Zhang, Sean Li

Chapter 3. Waste Mechanical Energy Harvesting (II): Nanopiezoelectric Effect

Recently, a new type of mechanical waste energy harvester—nanogenertor, based on nanopiezoelectric effect, has emerged. Nanogenerator is a device facilitated with modern nanotechnologies that can be used to convert mechanical or thermal energy as produced by small-scale physical change into electricity.
Ling Bing Kong, Tao Li, Huey Hoon Hng, Freddy Boey, Tianshu Zhang, Sean Li

Chapter 4. Waste Thermal Energy Harvesting (I): Thermoelectric Effect

Waste thermal energy (heat) is the second type of energy to be discussed. Usually, it is generated in a process by way of fuel combustion or chemical reaction, and then “dumped” into the environment even though it could still be reused for some useful and economic purpose. The essential quality of heat is not the amount but rather its “value.” The strategy of how to recover this heat depends in part on the temperature of the waste heat gases and the economics involved.
Ling Bing Kong, Tao Li, Huey Hoon Hng, Freddy Boey, Tianshu Zhang, Sean Li

Chapter 5. Waste Thermal Energy Harvesting (II): Pyroelectric Effect and Others

As discussed in Chap.​ 2, pyroelectric materials are a subgroup of piezoelectric materials and ferroelectric materials are a subgroup of pyroelectric materials. Therefore, ferroelectric materials have much better pyroelectric performance among all pyroelectric materials, according to the grouping with crystal structures [13].
Ling Bing Kong, Tao Li, Huey Hoon Hng, Freddy Boey, Tianshu Zhang, Sean Li

Chapter 6. Waste Thermal Energy Harvesting (III): Storage with Phase Change Materials

In last two chapters, both methods to harvest waste thermal energy through the conversion to electricity. In this chapter, energy storage as an alternative method to harvest waste thermal energy, especially by using phase change materials (PCMs), will be presented.
Ling Bing Kong, Tao Li, Huey Hoon Hng, Freddy Boey, Tianshu Zhang, Sean Li
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