Exergy and Its Application - Toward Green Energy Production and Sustainable Environment最新文献

Introductory Chapter: Green Energy Systems 导论:绿色能源系统

Exergy and Its Application - Toward Green Energy Production and Sustainable Environment Pub Date : 2019-12-04 DOI: 10.5772/intechopen.89925

M. Aziz

{"title":"Introductory Chapter: Green Energy Systems","authors":"M. Aziz","doi":"10.5772/intechopen.89925","DOIUrl":"https://doi.org/10.5772/intechopen.89925","url":null,"abstract":"As one of the very crucial elements of life, energy has given huge impacts in forming the domestic and international policies of the country, raising the environmental issues, changing the social dimensions, accelerating the economic growth, etc. The study related to energy has focused mainly on finding and establishing the new and efficient ways to produce (convert), store, transport, and utilize the energy. The conventional energy system, coupled with the huge demand of energy due to industrial activities, has resulted in various social, psychological, and environmental problems. Concretely, conventional combustion of fossil energy sources has accelerated the emission of greenhouse gases (GHGs), leading to high concern on climatic issues. In order to tackle down the above problems, several research have been developed, especially related to the way to achieve greener energy systems. Dincer and Zamfirescu [1] have proposed the concept of greenization, which refers to the efforts to greenize the energy systems, including the processes and applications with high sustainability. Some academic efforts to clearly analyze the problems also include several theoretical approaches to correlate the theories to their real implications. The intensive correlation of thermodynamics toward sustainable energy systems and environment has been studied by Hammond [2]. In addition, Bejan [3] also used the theory of entropy generation minimization in order to analyze the energy policy. Discussing the energy policy, there is a strong relationship between the exergy destruction and environmental impact. Lower exergy destruction leads to higher energy efficiency of the system; hence, the systems consumes less energy input followed by lower environmental impact, leading to the sustainability of the system.","PeriodicalId":412459,"journal":{"name":"Exergy and Its Application - Toward Green Energy Production and Sustainable Environment","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122068602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exergy in Photovoltaic/Thermal Nanofluid-Based Collector Systems 基于光伏/热纳米流体的集热器系统中的火用

Exergy and Its Application - Toward Green Energy Production and Sustainable Environment Pub Date : 2019-10-23 DOI: 10.5772/intechopen.85431

Amin Farzanehnia, M. Sardarabadi

引用次数: 14

Supercapacitors as Guarantors for Energy Sustainability in Low-Power Energy Harvesting Sensor Modules 超级电容器作为低功耗能量收集传感器模块中能量可持续性的保证

Exergy and Its Application - Toward Green Energy Production and Sustainable Environment Pub Date : 2019-08-05 DOI: 10.5772/INTECHOPEN.88007

D. Purkovic

{"title":"Supercapacitors as Guarantors for Energy Sustainability in Low-Power Energy Harvesting Sensor Modules","authors":"D. Purkovic","doi":"10.5772/INTECHOPEN.88007","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.88007","url":null,"abstract":"Energy harvesting, low-power sensor modules are characterised by their energy independence, power consumption, size, robustness to withstand the environ-mental conditions, maintenance demand and long term operation. To secure any of these conditions focus has to be put on the device energy reservoir. Traditional approach would reach for the battery and at the very beginning of the development, accept the limitations that go along with it. These limitations in form of high temperature difference dependency, current peaks, limited charge cycles, loss of operating voltage and capacity, soon become constraints in the sensor module life cycle. Answer to these constraints and a guarantor of a long sensor module life cycle is a supercapacitor. An energy storage which does not have any special charging requests, other than ensuring that the maximum voltage is not exceeded, or that a minimum voltage is not reached. Supercapacitors have a low ESR (equivalent series resistance), typically of the order of 100 m Ω . This reduces internal losses during charge and discharge cycles allowing them to handle current surges without the output voltage dropping significantly. Lithium-ion supercapacitors especially have good self-discharge characteristics and retain their voltage for years.","PeriodicalId":412459,"journal":{"name":"Exergy and Its Application - Toward Green Energy Production and Sustainable Environment","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130956673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrical Vehicle-Assisted Demand Side Energy Management 电动汽车辅助需求侧能源管理

Exergy and Its Application - Toward Green Energy Production and Sustainable Environment Pub Date : 2019-07-18 DOI: 10.5772/INTECHOPEN.85862

Xing Luo, Xu Zhu, E. Lim

引用次数: 0

Energy Management through Electromagnetic Conversion 电磁转换能源管理

Exergy and Its Application - Toward Green Energy Production and Sustainable Environment Pub Date : 2019-04-06 DOI: 10.5772/INTECHOPEN.85420

Eduardo Torres-Sánchez

{"title":"Energy Management through Electromagnetic Conversion","authors":"Eduardo Torres-Sánchez","doi":"10.5772/INTECHOPEN.85420","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.85420","url":null,"abstract":"The global society has the responsibility to concern about environmental impact for energy purposes by replacing existing coal and hydrocarbon methods by sustainable and efficient energy systems. Hence, current power generation systems are bounded by the physical laws that tend to decrease the performance by converting most of the energy into heat. Likewise, the revolution and massive implementation of renewable energies around the world have demonstrated that the electromagnetic transduction presents a viable option to harness the induced mechanical energy provided by either wind or water into exergy. The exergy focuses on the efficiency of the second law of thermodynamics with the purpose to ensure availability and quality of energy within energetic management systems. Thereby, it is necessary to decrease the energy demand by making very efficient power-consuming devices and increasing the quality of energy with performed output power generation systems. This chapter addresses a single diagram to develop models and novel designs for power generation with the aim to develop variable efficiency power systems. Furthermore, an analysis is addressed on magnetism, electromagnetic induction, and magnetic materials to design, optimize, and imple-ment into current power cycles.","PeriodicalId":412459,"journal":{"name":"Exergy and Its Application - Toward Green Energy Production and Sustainable Environment","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123906918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chemical Looping Combustion Power Generation System for a Power‐to‐Gas Scheme 用于电-气方案的化学循环燃烧发电系统

Exergy and Its Application - Toward Green Energy Production and Sustainable Environment Pub Date : 2019-04-06 DOI: 10.5772/INTECHOPEN.85584

Muhammad W. Ajiwibowo, A. Darmawan, Muhammad Aziz

{"title":"Chemical Looping Combustion Power Generation System for a Power‐to‐Gas Scheme","authors":"Muhammad W. Ajiwibowo, A. Darmawan, Muhammad Aziz","doi":"10.5772/INTECHOPEN.85584","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.85584","url":null,"abstract":"Renewable energy provides a quick win solution for global warming, but it comes with drawbacks. Renewable sources such as solar and wind are not available for continuous use; thus, intermittency of electric power generation is an issue. Fluctuation of electricity production could damage the grid. Throughout the years, researchers have come up with solutions to solve this problem by storing the excess electricity via an energy storage system. One of the most efficient options is through solid oxide electrolysis cell (SOEC) to produce H 2 . In itself, H 2 contains a lot of energy and can be converted to electricity via combustion or fuel cell. Therefore, storing electricity in the form of H 2 could prove to be effective. Energy storage systems such as power-to-gas may provide a clean and efficient way to store the overproduced electricity. In this work, a power-to-gas system coupled with a chemical looping combustion combined-cycle system is proposed to provide base and intermediate load power from the unused electricity from the grid. Enhanced process integration was employed to achieve optimal heat and exergy recovery. This chapter focuses on the design of a system consisting of a power-to-gas conversion method and a H 2 -powered chemical looping combustion power generation system.","PeriodicalId":412459,"journal":{"name":"Exergy and Its Application - Toward Green Energy Production and Sustainable Environment","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125941450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0