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2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)最新文献

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Co-Firing Cassava Rhizome and Eucalyptus Bark in a Fluidized-Bed Combustor Using Reburning: Combustor Performance and Time-Related Bed Behavior 利用再燃烧技术在流化床燃烧器中共烧木薯根茎和桉树树皮:燃烧器性能和与时间相关的床行为
Chhaina Se, V. I. Kuprianov, Pichet Ningduangdee
Pelletized cassava rhizome (base fuel) and eucalyptus bark (reburn fuel) with elevated potassium content were co-fired in a conical fluidized-bed combustor using reburning to reduce NOx emissions. Long-term co-firing tests were performed with two alternative bed materials, pure alumina sand and a mixture of alumina sand and silica sand (in equal wt.%), to mitigate bed agglomeration. All experiments were performed with constant operating parameters (total heat input to the reactor, energy share of the reburn fuel, excess air, and secondary-to-total air ratio). Physical and chemical characteristics of the bed materials and particulate matter were quantified at different time instants. The study showed weak effects of the bed material type on combustion and emission performance of the combustor. When co-firing the selected biomass fuels, high (over 99%) combustion efficiency can be achieved at about 45% NO emission reduction, as compared to firing the base fuel alone. Using the selected bed materials, bed agglomeration can be prevented in the combustor for a relatively long operating time. However, the bed materials showed time-domain changes in physiochemical characteristics and a diminishing capability to resist bed agglomeration, particularly when using a mixture of alumina and silica sand.
木薯根茎颗粒(基础燃料)和桉树树皮颗粒(再燃烧燃料)在高钾含量的锥形流化床燃烧器中共烧,利用再燃烧来减少NOx排放。长期共烧试验采用两种床层材料进行,纯氧化铝砂和氧化铝砂和硅砂的混合物(wt.%相等),以减轻床层团聚。所有实验都是在恒定的操作参数下进行的(反应器的总热量输入,再燃燃料的能量份额,多余空气和二次空气与总空气的比率)。定量分析了不同时刻床层物质和颗粒物的物理化学特性。研究表明,床料类型对燃烧器燃烧和排放性能的影响较小。与单独燃烧基础燃料相比,当混合燃烧选定的生物质燃料时,可以实现高(超过99%)的燃烧效率,减少约45%的NO排放。使用选定的床料,可以防止床团在燃烧室中运行较长时间。然而,床层材料表现出物理化学特性的时域变化和抗床层团聚的能力下降,特别是当使用氧化铝和硅砂的混合物时。
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引用次数: 0
PSO based Unit Commitment of a Hybrid Microgrid System 基于PSO的混合微电网系统单元承诺
Raja Nivedha R, Jai Govind Singh, W. Ongsakul
Scheduling of generators plays a crucial role in unit commitment problem of a deregulated power market. Due to the increased variation between supply and demand, the power produced by the conventional generators is not sufficient to meet the load demand. Renewable sources are added to the system, to provide additional power to avoid the generation and load imbalances. When the power demand is met, the extra power can be sold back to the grid to yield monetary benefits. In case if, the power demand is not met by the conventional sources as well as the renewable sources, the power is drawn from the grid to meet out the demand. Two scenarios have been considered, with and without the addition of renewable penetration into the system. When renewable sources are not added to the system, the fuel cost and maintenance cost is high due to the conventional generator which supports the demand. When renewable sources are added, the fuel and maintenance is considerably reduced. In this study, renewable sources are free of cost.
在解除管制的电力市场中,发电机组的调度是解决机组承诺问题的关键。由于供需之间的变化越来越大,传统发电机产生的电力已不足以满足负荷需求。可再生能源被添加到系统中,以提供额外的电力,以避免发电和负荷不平衡。当电力需求得到满足时,多余的电力可以卖回给电网以产生货币效益。在常规能源和可再生能源都不能满足电力需求的情况下,从电网中抽出电力来满足需求。考虑了两种情况,有和没有将可再生能源渗透到系统中。在不加入可再生能源的情况下,由于常规发电机不能满足需求,燃料成本和维护成本较高。当使用可再生能源时,燃料和维护费用大大减少。在这项研究中,可再生能源是免费的。
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引用次数: 5
A Review on Re-Utilization of Electric Vehicle’s Retired Batteries 电动汽车退役电池再利用研究进展
A. Bhatt, Shubham Tiwari, W. Ongsakul
The utilization of batteries as a primary source for energy recovery and energy storage applications such as solar energy, wind energy, hybrid system and electric vehicles has been increasing rapidly now days. This paper reviews about the utilization methods of retired batteries from transportation sectors. It also describes the classification of chemical storage batteries, their characteristics, benefits and challenges while utilizing retired batteries, and some of the application aspects. The importance of retired batteries along with an integration of building block system is presented in this paper.
目前,电池作为太阳能、风能、混合动力系统和电动汽车等能源回收和储能应用的主要来源的利用正在迅速增加。本文综述了交通运输部门退役电池的利用方法。还介绍了化学蓄电池的分类、特点、利用退役蓄电池的优点和挑战,以及一些应用方面的问题。本文提出了退役电池的重要性,并提出了一个集成的模块系统。
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引用次数: 4
Modeling and Comparative Performance Analysis of Different Bladed Vertical Axis Wind Turbine (VAWT) 不同叶片垂直轴风力机(VAWT)建模及性能对比分析
H. Khoharo, Laveet Kumar, M. S. Jamali
Collective effort on energy sector mainly renewable energy, especially Wind Turbine design and development is of major concern. Nowadays, due to the energy crisis, the Horizontal Axis Wind Turbine (HAWT) is most commonly used due to its high height. Because we can attain high wind speeds and that results in self-starting capabilities of HAWT. Nevertheless, Vertical Axis Wind Turbine (VAWT) titled Savonius Wind Turbines have many advantages over HAWT and Darrieus VAWT.This research aims to model, design and analyze the performance of different bladed Vertical Axis Wind Turbine (VAWT) by considering different design parameters. Different bladed Savonius type VAWT were taken as testing objects and their performance was analyzed with respect to velocity and number of blades in terms of RPM, voltages, torque, and power. The results concluded that three bladed VAWT is much better than other different bladed VAWTs.
能源部门的集体努力主要是可再生能源,特别是风力涡轮机的设计和开发是主要关注的问题。如今,由于能源危机,水平轴风力发电机(HAWT)由于其高度高而最常用。因为我们可以达到很高的风速,这导致了HAWT的自启动能力。然而,垂直轴风力涡轮机(VAWT)名为萨沃纽斯风力涡轮机有许多优势比HAWT和达里厄斯VAWT。本研究的目的是在考虑不同设计参数的情况下,对不同叶片垂直轴风力机(VAWT)进行性能建模、设计和分析。以不同叶片的Savonius型VAWT为测试对象,从转速、电压、转矩、功率等方面分析了不同叶片的速度和叶片数量对VAWT性能的影响。结果表明,三叶式VAWT的性能明显优于其他不同叶式的VAWT。
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引用次数: 1
Energy and Environmental Implications of Green House Gas Mitigation Policies in the Transport Sector of Sri Lanka 斯里兰卡运输部门温室气体减排政策对能源和环境的影响
Gayashika L. Fernando, M. Liyanage, G. N. Samarasekara
This study analyzes the greenhouse gas mitigation policy options for the transport sector in Sri Lanka. It was carried out through the Asia—Pacific Integrated Assessment Model (AIM/Enduse), which is a bottom up type least cost optimization framework. A business as usual scenario and four alternative mitigation policy options were considered in this study. These policy options include two scenarios with 100 $/tonCO2, 500 $/tonCO2 carbon tax, a subsidy scenario with tax rebates for electric, hybrid vehicles and a scenario which promotes pubic transport. The results show that the transport sector energy consumption is expected to increase from 5 Mtoe in 2015 to 19.5 Mtoe in 2045. The CO2 emissions are expected to increase from 15 Mton in 2015 to 58 Mton in 2045. Out of the four scenarios, promoting public transport was most effective as it could reduce energy consumption by 52% and reduce CO2 emissions by almost 36% in 2045. At current electricity prices and other costs, electric vehicles are not found to be economical in the analysis.
本研究分析了斯里兰卡运输部门的温室气体减排政策选择。它是通过亚太综合评估模型(AIM/Enduse)进行的,这是一个自下而上的最小成本优化框架。本研究考虑了一种一切照旧的情景和四种备选缓解政策方案。这些政策方案包括两种方案,分别征收100美元/吨二氧化碳和500美元/吨二氧化碳的碳税,一种是对电动和混合动力汽车进行退税的补贴方案,另一种是促进公共交通的方案。结果表明,交通运输部门的能源消耗预计将从2015年的500万吨油当量增加到2045年的1950万吨油当量。二氧化碳排放量预计将从2015年的1500万吨增加到2045年的5800万吨。在这四种方案中,促进公共交通是最有效的,因为到2045年,它可以减少52%的能源消耗,减少近36%的二氧化碳排放。在目前的电价和其他成本下,电动汽车在分析中并不经济。
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引用次数: 1
[Copyright notice] (版权)
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引用次数: 0
Identification of Weak Nodes in Power System Using Conditional Number of Power Flow Jacobian Matrix 基于潮流雅可比矩阵条件数的电力系统弱节点辨识
H. Chappa, T. Thakur
In power system an important feature is the ability to anticipate Voltage instability, as it helps in splitting the network into islands and system will be in extremis state. Identification of weak nodes in power system may be useful for system operators for actuating suitable controls to prevent voltage instability. Time series evolution of the conditional number of power flow Jacobian matrix is utilized in this paper to identify the weak nodes in the system. If the conditional number value goes beyond the threshold value, then the generators with minimum reactive power margin and loads with maximum change in nodal reactive power loss within the zone are identified. All these generators and nodes within the zone are ranked, the generator with minimum reactive power margin and the node with highest change in nodal reactive power loss in the minimum reactive power margin zone is the weakest node. This methodology is validated in New England 39 bus test system and the simulation results shows that this methodology is effective in identification of weak nodes in the power system.
在电力系统中,电压不稳定的预测能力是一个重要的特性,因为它有助于将电网分割成孤岛,使系统处于极端状态。电力系统中薄弱节点的识别可以帮助系统操作员采取适当的控制措施来防止电压不稳定。本文利用功率流雅可比矩阵条件数的时间序列演化来识别系统中的弱节点。如果条件数值超过阈值,则识别出区域内无功裕度最小的发电机和节点无功损耗变化最大的负荷。对区域内的所有发电机和节点进行排序,最小无功裕度的发电机和最小无功裕度区域内节点无功损耗变化最大的节点为最弱节点。该方法在新英格兰39总线测试系统中得到了验证,仿真结果表明该方法能够有效地识别电力系统中的薄弱节点。
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引用次数: 4
A Review of DSTATCOM Used in Solar Photovoltaic System DSTATCOM在太阳能光伏系统中的应用综述
Nimita A. Gajjar, T. Zaveri
This paper aims to present a comprehensive review of the distribution static compensator connected with solar photovoltaic (SPV) system employed for voltage regulation, power factor correction, and load balancing in the distribution network. The inverter employed with SPV system for supplying active power to the grid/load can be made multifunctional i.e. it also serves as DSTATCOM when SPV power is not available (The arrangement is called PV-DSTATCOM). For such an arrangement the need for the actually installed DSTATCOM for voltage regulation and temporary over voltage control can be either minimized or altogether eliminated, bringing a significant savings for the utility. The intention of this review is to provide a broad view on configuration, topologies, and control techniques to the researchers and engineers working on power quality improvement. More than 100 research publications on the topologies, configuration, control techniques and applications of distribution static compensator have been thoroughly reviewed and classified for quick reference.
本文旨在全面介绍与太阳能光伏(SPV)系统连接的配电静态补偿器在配电网中用于电压调节、功率因数校正和负载均衡的研究进展。SPV系统用于向电网/负载提供有功功率的逆变器可以实现多功能,即当SPV电源不可用时,它也可以充当DSTATCOM(这种安排称为PV-DSTATCOM)。在这种情况下,对实际安装的DSTATCOM进行电压调节和临时过电压控制的需求可以最小化或完全消除,从而为公用事业公司节省大量费用。这篇综述的目的是为致力于电能质量改进的研究人员和工程师提供一个关于配置、拓扑和控制技术的广泛观点。本文对分布静态补偿器的拓扑结构、结构、控制技术和应用等方面的100多篇研究论文进行了全面的综述和分类,以供快速参考。
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引用次数: 3
Green Consumption to Consumer Social Responsibility (CNSR): A Roadmap towards Sustainable Development 绿色消费到消费者社会责任:走向可持续发展的路线图
Mamta Soni, Sunny Dawar
Green consumption aims to safeguard the environmental resources like electricity, water, fuel, etc. as these resources are important for human survival and have to be preserved for future generations. Recently, many researchers have focused on environmental health improvement with the introduction of advanced and improved production processes. This approach will work more effectively when consumers’ understanding about their social responsibility is developed in parallel. In this paper, efforts are being made to incorporate consumers’ social responsibility in the frame to address and resolve environmental health issues. Relationship between sustainable development and consumers’ consumption pattern has been discussed with the help of Consumer Social Responsibility (CnSR) Model for improved survival.
绿色消费的目的是保护环境资源,如电、水、燃料等,因为这些资源对人类的生存很重要,必须为子孙后代保留下来。近年来,随着先进和改进的生产工艺的引入,许多研究人员关注环境健康的改善。当消费者对其社会责任的理解同时发展时,这种方法将更加有效。在本文件中,正在努力将消费者的社会责任纳入框架,以处理和解决环境卫生问题。通过消费者社会责任模型,探讨了可持续发展与消费者消费模式之间的关系。
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引用次数: 1
Calophyllum inophyllum for Green Energy and Landscape Restoration: Plant Growth, Biofuel Content, Associate Waste Utilization and Agroforestry Prospect 绿色能源和景观恢复中的卡勒姆:植物生长、生物燃料含量、伴生废物利用和农林业前景
B. Leksono, E. Windyarini, T. Hasnah, S. Rahman, H. Baral
Indonesia has approximately 16.8 Mha of degraded lands. These lands have the potential to grow biofuel species to meet the need for energy security, income generation and land restoration. As a promising species Calophyllum inophyllum is suitable to grow in 5.7 Mha of degraded land in Indonesia and could contribute to green energy production and restoration of these degraded lands. During the growing stage, this species can grow up to 1 m in height per year and tolerates to harsh environmental conditions. Its seed provides high levels of non-edible oil, thus making it ideal for biodiesel production. In addition, during the biodiesel production process, its waste and by-products can be used as a raw material in pharmaceuticals and cosmetic industries, and as a compost for soil enrichment. Growing various cash crops with Calophyllum inophyllum as agroforestry can provide extra income to farmers, thus create added value of Calophyllum inophyllum cultivation.
印度尼西亚大约有16.8万公顷的退化土地。这些土地有潜力种植生物燃料品种,以满足能源安全、创收和土地恢复的需要。Calophyllum inophyllum适合在印度尼西亚5.7 Mha的退化土地上生长,可以为这些退化土地的绿色能源生产和恢复做出贡献。在生长阶段,本种每年可长到1米高,耐恶劣的环境条件。它的种子提供高水平的非食用油,因此使其成为生产生物柴油的理想选择。此外,在生物柴油生产过程中,其废弃物和副产品可作为制药和化妆品工业的原料,也可作为土壤富集的堆肥。利用红叶作为农林业种植各种经济作物,可以为农民提供额外收入,从而创造红叶种植的附加价值。
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引用次数: 4
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2018 International Conference and Utility Exhibition on Green Energy for Sustainable Development (ICUE)
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