首页 > 最新文献

2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)最新文献

英文 中文
Biogas production from household solid waste by anaerobic batch reactor 厌氧间歇式反应器处理生活垃圾产沼气
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163902
Boua Sidoine Kadjo, D. Sangaré, K. Sako, L. Coulibaly
The objective of this work is the management of organic solid waste, rich in organic matter, by anaerobic digestion. The device set up is a batch reactor for the production of biogas. The organic waste used comes mainly from households, consisting of 80.4% organic matter. The anaerobic digestion of this waste gave in 70 days 9 liters of biogas composed of 57.35% methane and 32.4% carbon dioxide. Upgrading of biogas would allow to produce 1235.27 kWh of primary energy per ton of solid household waste treated and to avoid an emission of 6.34 ${mathrm {tCO_{2}e_{q}}}$. It would make it possible to avoid 77.54% of the emissions compared to landfilling.
这项工作的目的是管理有机固体废物,丰富的有机物质,厌氧消化。所建立的装置为间歇式沼气生产反应器。使用的有机废物主要来自家庭,有机物质占80.4%。经过70天的厌氧消化,产生沼气9升,甲烷含量为57.35%,二氧化碳含量为32.4%。升级沼气将使每处理一吨固体家庭废物产生1235.27千瓦时的初级能源,并避免排放6.34美元{mathrm {tCO_{2}e_{q}} $。与填埋相比,可以减少77.54%的排放量。
{"title":"Biogas production from household solid waste by anaerobic batch reactor","authors":"Boua Sidoine Kadjo, D. Sangaré, K. Sako, L. Coulibaly","doi":"10.1109/REDEC49234.2020.9163902","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163902","url":null,"abstract":"The objective of this work is the management of organic solid waste, rich in organic matter, by anaerobic digestion. The device set up is a batch reactor for the production of biogas. The organic waste used comes mainly from households, consisting of 80.4% organic matter. The anaerobic digestion of this waste gave in 70 days 9 liters of biogas composed of 57.35% methane and 32.4% carbon dioxide. Upgrading of biogas would allow to produce 1235.27 kWh of primary energy per ton of solid household waste treated and to avoid an emission of 6.34 ${mathrm {tCO_{2}e_{q}}}$. It would make it possible to avoid 77.54% of the emissions compared to landfilling.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130401769","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
Comparative Study Between the Different MPPT Techniques 不同MPPT技术的比较研究
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163591
M. Mokhlis, M. Ferfra, Hemeyine Ahmed Vall, Rafika EL Idrissi, C. C. Ahmed, A. Taouni
This paper proposes a new hybrid controller based MPPT. This one is composed of the Artificial Neural Network and Integral Feedback Linearization Controller (ANN-IFLC). The ANN is used to produce the reference of optimal voltage that corresponds to the maximal power. While the IFLC is designed to track the voltage reference. The integral action is added to ensure zero-static error. Then, a comparison between different existing Maximum Power Point Tracking (MPPT) techniques, which are divided between the classical algorithms and the hybrid controllers, is made. The classical algorithms, treated in this study, are the Perturb and Observe (P & O) and Incremental Conductance (INC). While the hybrid controllers are INC-BSC, P & O-BSC, ANN-ISMC, ANN-BSC, and ANN-IFLC. As can be noticed, these controllers present the combination between the nonlinear controllers and the Artificial Neural network (ANN) or the classical algorithms (P & O and INC). Effectively, the nonlinear controllers used are the Sliding Mode Controller (SMC), the Integral Sliding Mode Controller (ISMC), the Backstepping Controller (BSC) and the proposed IFL Controller. The proposed photovoltaic system consists of the photovoltaic module (Reference: S6M2G240), of the Boost converter and the resistive load. The MPPT techniques are tested using Matlab software. The results show that the hybrid controllers characterize by the tracking performances better than the classical methods. Moreover, the Artificial Neural Network predicts quickly and accurately the Maximum Power Point (MPP) under uniform meteorological conditions. Also, the PV voltage produced, using IFLC or ISMC, has fewer oscillations around its optimum thanks to the integral action added.
本文提出了一种新的基于MPPT的混合控制器。该系统由人工神经网络和积分反馈线性化控制器(ANN-IFLC)组成。利用人工神经网络产生与最大功率相对应的最优电压基准。而IFLC设计用于跟踪参考电压。加入积分动作,保证静态误差为零。然后,对现有的最大功率点跟踪(MPPT)技术进行了比较,将其分为经典算法和混合控制器两种。在本研究中处理的经典算法是摄动和观察(P & O)和增量电导(INC)。混合控制器有:c - bsc、P & O-BSC、ANN-ISMC、ANN-BSC和ANN-IFLC。可以注意到,这些控制器是非线性控制器与人工神经网络(ANN)或经典算法(P & O和INC)的结合。有效地,使用的非线性控制器是滑模控制器(SMC),积分滑模控制器(ISMC),反步控制器(BSC)和提出的IFL控制器。所提出的光伏系统由光伏模块(参考编号:S6M2G240)、升压变换器和电阻负载组成。利用Matlab软件对MPPT技术进行了测试。结果表明,该混合控制器具有较好的跟踪性能。此外,在均匀气象条件下,人工神经网络能快速准确地预测最大功率点。此外,使用IFLC或ISMC产生的PV电压,由于添加了积分作用,在其最佳附近的振荡较少。
{"title":"Comparative Study Between the Different MPPT Techniques","authors":"M. Mokhlis, M. Ferfra, Hemeyine Ahmed Vall, Rafika EL Idrissi, C. C. Ahmed, A. Taouni","doi":"10.1109/REDEC49234.2020.9163591","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163591","url":null,"abstract":"This paper proposes a new hybrid controller based MPPT. This one is composed of the Artificial Neural Network and Integral Feedback Linearization Controller (ANN-IFLC). The ANN is used to produce the reference of optimal voltage that corresponds to the maximal power. While the IFLC is designed to track the voltage reference. The integral action is added to ensure zero-static error. Then, a comparison between different existing Maximum Power Point Tracking (MPPT) techniques, which are divided between the classical algorithms and the hybrid controllers, is made. The classical algorithms, treated in this study, are the Perturb and Observe (P & O) and Incremental Conductance (INC). While the hybrid controllers are INC-BSC, P & O-BSC, ANN-ISMC, ANN-BSC, and ANN-IFLC. As can be noticed, these controllers present the combination between the nonlinear controllers and the Artificial Neural network (ANN) or the classical algorithms (P & O and INC). Effectively, the nonlinear controllers used are the Sliding Mode Controller (SMC), the Integral Sliding Mode Controller (ISMC), the Backstepping Controller (BSC) and the proposed IFL Controller. The proposed photovoltaic system consists of the photovoltaic module (Reference: S6M2G240), of the Boost converter and the resistive load. The MPPT techniques are tested using Matlab software. The results show that the hybrid controllers characterize by the tracking performances better than the classical methods. Moreover, the Artificial Neural Network predicts quickly and accurately the Maximum Power Point (MPP) under uniform meteorological conditions. Also, the PV voltage produced, using IFLC or ISMC, has fewer oscillations around its optimum thanks to the integral action added.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"246 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128767172","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: 7
Design of a Bidirectional Electrical Energy Measurement System for Applications in Distributed Generation 分布式发电中双向电能测量系统的设计
Pub Date : 2020-06-01 DOI: 10.1109/redec49234.2020.9163605
Marcelo Benítez, Cesar Isasi, R. Galeano, D. Gregor, M. Arzamendia, R. Gregor, J. Rodas, Y. Kali
This work focuses on the development of a bidirectional electrical energy measurement system under a distributed generation (DG) scheme. The measurement system consists of an IC ADE9000 for the measurement of high-precision multi-phase electrical energy, circuits and sensors for voltage and current conditioning, an Arduino Due as a control unit and an Ethernet module ENC28j60 for IP connection. The measurement system includes a data management scheme based on a web platform contained in a server where measurement queries can be performed as well as user administration through a database.
本工作的重点是分布式发电(DG)方案下双向电能测量系统的开发。该测量系统由用于高精度多相电能测量的集成电路ADE9000、用于电压和电流调节的电路和传感器、作为控制单元的Arduino Due和用于IP连接的以太网模块ENC28j60组成。该测量系统包括一个基于web平台的数据管理方案,该数据管理方案包含在一个服务器中,该服务器可以通过数据库执行测量查询和用户管理。
{"title":"Design of a Bidirectional Electrical Energy Measurement System for Applications in Distributed Generation","authors":"Marcelo Benítez, Cesar Isasi, R. Galeano, D. Gregor, M. Arzamendia, R. Gregor, J. Rodas, Y. Kali","doi":"10.1109/redec49234.2020.9163605","DOIUrl":"https://doi.org/10.1109/redec49234.2020.9163605","url":null,"abstract":"This work focuses on the development of a bidirectional electrical energy measurement system under a distributed generation (DG) scheme. The measurement system consists of an IC ADE9000 for the measurement of high-precision multi-phase electrical energy, circuits and sensors for voltage and current conditioning, an Arduino Due as a control unit and an Ethernet module ENC28j60 for IP connection. The measurement system includes a data management scheme based on a web platform contained in a server where measurement queries can be performed as well as user administration through a database.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131065000","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: 2
Measurement and modeling of excess enthalpies of hydrocarbon mixtures: Alkene + Alkane or + Cycloalkane at 313.15 K 烃混合物:烯烃+烷烃或+环烷烃在313.15 K下的过量焓的测量和建模
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163877
Mohamed Lifi, E. Montero, L. Deshayes, Natalia Muñoz-Rujas, Y. Chhiti, F. Alaoui, F. Romero
New measurements of excess enthalpy of binary mixtures containing 1-hexene, Cyclohexane and 2,2,4-Trimethylpentane at 313.15 K are reported in this work, by using a quasi-isothermal calorimeter at atmospheric pressure. The measured data of $H^{mathrm{E}}$ has been fitted using NRTL and UNIQUAC models, and Redlich-Kister mathematical equation. All the studied binary mixtures show an endothermic behavior.
本文报道了用准等温量热计在常压下测量含有1-己烯、环己烷和2,2,4-三甲基戊烷的二元混合物在313.15 K下的过量焓值。$H^{ mathm {E}}$的实测数据采用NRTL和UNIQUAC模型和Redlich-Kister数学方程进行了拟合。所研究的二元混合物均表现出吸热行为。
{"title":"Measurement and modeling of excess enthalpies of hydrocarbon mixtures: Alkene + Alkane or + Cycloalkane at 313.15 K","authors":"Mohamed Lifi, E. Montero, L. Deshayes, Natalia Muñoz-Rujas, Y. Chhiti, F. Alaoui, F. Romero","doi":"10.1109/REDEC49234.2020.9163877","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163877","url":null,"abstract":"New measurements of excess enthalpy of binary mixtures containing 1-hexene, Cyclohexane and 2,2,4-Trimethylpentane at 313.15 K are reported in this work, by using a quasi-isothermal calorimeter at atmospheric pressure. The measured data of $H^{mathrm{E}}$ has been fitted using NRTL and UNIQUAC models, and Redlich-Kister mathematical equation. All the studied binary mixtures show an endothermic behavior.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131937867","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: 3
A DFT Study of the Structural, Electronic and Optical Properties of CsGeI2Br Halide Perovskite CsGeI2Br卤化物钙钛矿结构、电子和光学性质的DFT研究
Pub Date : 2020-06-01 DOI: 10.1109/redec49234.2020.9163864
F. Elfatouaki, A. Outzourhit, D. Abouelaoualim, E. Ibnouelghazi
Halide inorganic perovskites have caused great concern owing to their greater electronic and optical properties which can be illustrated briefly by high charge carrier mobility and tunable band gap. During this work, we studied the electronic and optical properties of tetragonal phase of CsGeI2 Br perovskites using ab-initio techniques, most of which are based on the DFT density functional theory. The local density approximation (LDA)and generalized gradient approximation (GGA) of Perdew Burke Ernzehrof (PBE) are used to evaluate the exchange correlation potential. DFT has been applied to analyze the structural stability, band structure and density of states (DOS). Besides, the dielectric function and Absorption coefficient are determined.
卤化物无机钙钛矿由于其较高的电子和光学性质而引起了人们的极大关注,这可以通过高载流子迁移率和可调带隙来简单说明。在本工作中,我们利用ab-initio技术研究了csgei2br钙钛矿四方相的电子和光学性质,其中大部分是基于DFT密度泛函理论。利用Perdew - Burke - Ernzehrof (PBE)的局部密度近似(LDA)和广义梯度近似(GGA)对交换相关势进行了估计。应用离散傅里叶变换分析了结构稳定性、能带结构和态密度(DOS)。测定了介质的介电函数和吸收系数。
{"title":"A DFT Study of the Structural, Electronic and Optical Properties of CsGeI2Br Halide Perovskite","authors":"F. Elfatouaki, A. Outzourhit, D. Abouelaoualim, E. Ibnouelghazi","doi":"10.1109/redec49234.2020.9163864","DOIUrl":"https://doi.org/10.1109/redec49234.2020.9163864","url":null,"abstract":"Halide inorganic perovskites have caused great concern owing to their greater electronic and optical properties which can be illustrated briefly by high charge carrier mobility and tunable band gap. During this work, we studied the electronic and optical properties of tetragonal phase of CsGeI2 Br perovskites using ab-initio techniques, most of which are based on the DFT density functional theory. The local density approximation (LDA)and generalized gradient approximation (GGA) of Perdew Burke Ernzehrof (PBE) are used to evaluate the exchange correlation potential. DFT has been applied to analyze the structural stability, band structure and density of states (DOS). Besides, the dielectric function and Absorption coefficient are determined.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124918103","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: 5
DEADBEAT Control Applied toWind Power System 无差拍控制在风力发电系统中的应用
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163601
Bouderbala Manale, Bossoufi Badre, Alami Aroussi Hala, Taoussi Mohammed, Lagrioui Ahmed, Livinti Petru
As a part of the development of research related to the production of renewable energies, this article presents a contribution to the study and control of the doubly-fed induction generator (DFIG) applied to a wind turbine. Its purpose is to exploit the predictive control that consists of optimizing, from the inputs/outputs of a system, the predicted future behavior of the system so as to follow its reference. In our case, we control the active and reactive powers of the machine. To do that, we will propose a model of the system. Then, a brief description of the predictive control is spread out. In the end, the control mentioned before is tested using the software Matlab/Simulink, to illustrate the efficiency of the system proposed.
作为与可再生能源生产相关的研究发展的一部分,本文介绍了应用于风力发电机组的双馈感应发电机(DFIG)的研究和控制。它的目的是利用预测控制,包括优化,从系统的输入/输出,预测系统的未来行为,以遵循其参考。在我们的例子中,我们控制了机器的有功和无功功率。为此,我们将提出一个系统模型。然后,对预测控制进行了简要介绍。最后,利用Matlab/Simulink软件对上述控制进行了测试,以说明所提出系统的有效性。
{"title":"DEADBEAT Control Applied toWind Power System","authors":"Bouderbala Manale, Bossoufi Badre, Alami Aroussi Hala, Taoussi Mohammed, Lagrioui Ahmed, Livinti Petru","doi":"10.1109/REDEC49234.2020.9163601","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163601","url":null,"abstract":"As a part of the development of research related to the production of renewable energies, this article presents a contribution to the study and control of the doubly-fed induction generator (DFIG) applied to a wind turbine. Its purpose is to exploit the predictive control that consists of optimizing, from the inputs/outputs of a system, the predicted future behavior of the system so as to follow its reference. In our case, we control the active and reactive powers of the machine. To do that, we will propose a model of the system. Then, a brief description of the predictive control is spread out. In the end, the control mentioned before is tested using the software Matlab/Simulink, to illustrate the efficiency of the system proposed.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125072653","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: 5
Thermodynamic analysis of pyrolysis of olive mill waste water sludge in fluidized bed reactor 橄榄厂废水污泥在流化床反应器中的热解热力学分析
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163830
Muhammad Shoaib Ahmed Khan, R. Benelmir, A. Donnot
Energy production from fossil fuels is a conventional method which has negative impacts on environment and puts a heavy burden on economy of a country. The developed countries are focusing more on renewable energy sources and reducing their dependency on fossil fuels. Among other renewable sources of energy, biomass is a reasonable source of energy because it also solves the problem of disposal of waste products. Fast pyrolysis is a high temperature thermochemical conversion process widely used for production of bio oil from biomass. Pyrolysis model of olive mill waste water sludge is developed in Aspen Plus based upon the experimental results. Pyrolysis of olive mill waste water takes place at 450°C in a fluidized bed reactor. The products are passed through cyclone at 350^°C for removal of biochar. Bio oil vapors and non-condensable gases are passed through a series of condensers. A heat exchanger carrying water is employed after cyclone to condense the bio oil vapors at 90°C. Cooling water is heated upto 67°C in the heat exchanger which is a suitable temperature to drive an adsorption machine. This adsorption machine is used to condense water vapors at 10°C. The exergy analysis of the process shows that a net heat transfer of 30 W takes place in the first condenser. Overall exergy efficiency of pyrolysis olive mill waste water sludge is about 83% taking into account all products. High efficiency suggests that pyrolysis is a very efficient process for production of bio-oils.
化石燃料发电是一种传统的能源生产方式,对环境产生了负面影响,给国家经济带来了沉重的负担。发达国家更加注重可再生能源,减少对化石燃料的依赖。在其他可再生能源中,生物质是一种合理的能源,因为它也解决了废物处理的问题。快速热解是一种广泛应用于生物质生产生物油的高温热化学转化过程。根据实验结果,在Aspen Plus中建立了橄榄厂废水污泥的热解模型。橄榄厂废水的热解在450°C的流化床反应器中进行。产品在350°C下通过旋风分离器去除生物炭。生物油蒸气和不可冷凝气体通过一系列的冷凝器。在旋风分离器后,采用带水的热交换器在90°C下冷凝生物油蒸汽。冷却水在热交换器中加热到67°C,这是驱动吸附机的合适温度。这台吸附机用于冷凝10℃的水蒸气。该过程的火用分析表明,第一冷凝器的净换热量为30w。考虑到所有产物,橄榄厂热解废水污泥的总火用效率约为83%。高效率表明热解是一种非常有效的生产生物油的方法。
{"title":"Thermodynamic analysis of pyrolysis of olive mill waste water sludge in fluidized bed reactor","authors":"Muhammad Shoaib Ahmed Khan, R. Benelmir, A. Donnot","doi":"10.1109/REDEC49234.2020.9163830","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163830","url":null,"abstract":"Energy production from fossil fuels is a conventional method which has negative impacts on environment and puts a heavy burden on economy of a country. The developed countries are focusing more on renewable energy sources and reducing their dependency on fossil fuels. Among other renewable sources of energy, biomass is a reasonable source of energy because it also solves the problem of disposal of waste products. Fast pyrolysis is a high temperature thermochemical conversion process widely used for production of bio oil from biomass. Pyrolysis model of olive mill waste water sludge is developed in Aspen Plus based upon the experimental results. Pyrolysis of olive mill waste water takes place at 450°C in a fluidized bed reactor. The products are passed through cyclone at 350^°C for removal of biochar. Bio oil vapors and non-condensable gases are passed through a series of condensers. A heat exchanger carrying water is employed after cyclone to condense the bio oil vapors at 90°C. Cooling water is heated upto 67°C in the heat exchanger which is a suitable temperature to drive an adsorption machine. This adsorption machine is used to condense water vapors at 10°C. The exergy analysis of the process shows that a net heat transfer of 30 W takes place in the first condenser. Overall exergy efficiency of pyrolysis olive mill waste water sludge is about 83% taking into account all products. High efficiency suggests that pyrolysis is a very efficient process for production of bio-oils.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"426 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116541663","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
A comparative power quality study of DFIG and PMSG renewable energy conversion systems DFIG与PMSG可再生能源转换系统电能质量比较研究
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163892
G. U. Nnachi, Cornelius Thapelo Mosetlhe, Y. Hamam
Wind Energy Conversion Systems (WECS) are faced with escalating demand for power quality and total harmonic distortion (THD) control. With the advances in power electronics technology, the rapid growth of variable speed WECS is now witnessed. However, the power quality still remains an important issue to be addressed thoroughly by researchers. This project presents a comparative study on grid connected WECS (DFIG and PMSG) in terms of output powers (P&Q), Voltages and currents, THD and dynamic responses following a fault (duration=90ms) on the machine side bus (B575). Both systems are connected to power grid through unconventional back to back converters. The DFIG is modeled using the direct-quadrature rotating reference frame circuit along with the aligned stator flux, and the field-oriented control approach is applied for independent control of the active and reactive power and the DC-link voltage at the grid side. Improvement of the controllers of the DFIG from the rotor side and the stator (grid) side converters are done to enhance the dynamic performance. The comparison also aims to present in a thorough and coherent way the aspects of power quality in terms of reduction in Total Harmonic Distortion (THD) during the fault period. All the simulations are made in Matlab/Simulink.
风能转换系统(WECS)面临着对电能质量和总谐波失真(THD)控制日益增长的需求。随着电力电子技术的进步,变速WECS得到了迅速的发展。然而,电能质量仍然是一个需要研究人员彻底解决的重要问题。本项目对并网WECS (DFIG和PMSG)在机器侧总线(B575)故障(持续时间=90ms)后的输出功率(P&Q)、电压和电流、THD和动态响应方面进行了比较研究。两个系统都通过非传统的背靠背转换器连接到电网。采用直交旋转参考系电路和定向定子磁链对DFIG进行建模,采用磁场定向控制方法对电网侧有功、无功功率和直流电压进行独立控制。从转子侧和定子(电网)侧变流器两方面对DFIG的控制器进行了改进,以提高动态性能。该比较还旨在以彻底和连贯的方式呈现故障期间总谐波失真(THD)减少方面的电能质量。所有仿真均在Matlab/Simulink中完成。
{"title":"A comparative power quality study of DFIG and PMSG renewable energy conversion systems","authors":"G. U. Nnachi, Cornelius Thapelo Mosetlhe, Y. Hamam","doi":"10.1109/REDEC49234.2020.9163892","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163892","url":null,"abstract":"Wind Energy Conversion Systems (WECS) are faced with escalating demand for power quality and total harmonic distortion (THD) control. With the advances in power electronics technology, the rapid growth of variable speed WECS is now witnessed. However, the power quality still remains an important issue to be addressed thoroughly by researchers. This project presents a comparative study on grid connected WECS (DFIG and PMSG) in terms of output powers (P&Q), Voltages and currents, THD and dynamic responses following a fault (duration=90ms) on the machine side bus (B575). Both systems are connected to power grid through unconventional back to back converters. The DFIG is modeled using the direct-quadrature rotating reference frame circuit along with the aligned stator flux, and the field-oriented control approach is applied for independent control of the active and reactive power and the DC-link voltage at the grid side. Improvement of the controllers of the DFIG from the rotor side and the stator (grid) side converters are done to enhance the dynamic performance. The comparison also aims to present in a thorough and coherent way the aspects of power quality in terms of reduction in Total Harmonic Distortion (THD) during the fault period. All the simulations are made in Matlab/Simulink.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121984562","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: 4
Green Extraction of Polyphenols from Olive Leaves using Ired-Irrad® as a Pretreatment ir - irrad®预处理橄榄叶中绿色多酚的研究
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163899
Anna-Maria Abi-Khattar, H. Rajha, R. Maroun, R. Abdel-Massih, N. Louka, Espérance Debs
Maximization of polyphenols recovery from olive leaves by conventional water bath extraction was investigated using infrared irradiation as a pretreatment. A multivariate study enabled us to define the best experimental parameters for polyphenol extraction: 1:20 (w/v) for the solid to liquid ratio; $60 ^{circ}mathrm {C}$ and 75% ethanol/water. Untreated and infrared pretreated leaves were then subjected to the conventional extraction of polyphenols using the abovementioned conditions. A significant increase in both polyphenol yields and antiradical activities were shown subsequently to the infrared pretreatment of the leaves. This study concluded that IR pretreatment intensified the polyphenols extraction by varying different operative parameters such as temperature and IR exposure time.
采用红外辐照预处理,研究了常规水浴提取橄榄叶中多酚的最佳回收率。通过多变量研究,我们确定了多酚提取的最佳实验参数:料液比1:20 (w/v);$60 ^{circ} mathm {C}$和75%乙醇/水。然后在上述条件下对未经处理和红外预处理的叶片进行常规的多酚提取。经红外预处理后,多酚产量和抗自由基活性均有显著提高。研究结果表明,红外预处理通过改变温度和红外曝光时间等操作参数,可以增强多酚的提取效果。
{"title":"Green Extraction of Polyphenols from Olive Leaves using Ired-Irrad® as a Pretreatment","authors":"Anna-Maria Abi-Khattar, H. Rajha, R. Maroun, R. Abdel-Massih, N. Louka, Espérance Debs","doi":"10.1109/REDEC49234.2020.9163899","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163899","url":null,"abstract":"Maximization of polyphenols recovery from olive leaves by conventional water bath extraction was investigated using infrared irradiation as a pretreatment. A multivariate study enabled us to define the best experimental parameters for polyphenol extraction: 1:20 (w/v) for the solid to liquid ratio; $60 ^{circ}mathrm {C}$ and 75% ethanol/water. Untreated and infrared pretreated leaves were then subjected to the conventional extraction of polyphenols using the abovementioned conditions. A significant increase in both polyphenol yields and antiradical activities were shown subsequently to the infrared pretreatment of the leaves. This study concluded that IR pretreatment intensified the polyphenols extraction by varying different operative parameters such as temperature and IR exposure time.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121934113","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: 2
Analysis of weather impact on the yield of PV plants installed in two antagonists cities in Morocco 天气对摩洛哥两个敌对城市光伏电站产量的影响分析
Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163841
Caouthar Bahanni, Mustapha Adar, S. Boulmrharj, M. Khaidar, M. Mabrouki
The aim of this work is to compare yield photovoltaic and installations performance of different technologies exposed under natural outdoor conditions in two different sites in Morocco (Beni Mellal and EL Jadida). The plants studied consist of three technologies monocrystalline silicon (mc-si), amorphous silicon (ac-Si) and polycrystalline silicon (pc-si). The experimental data has been recorded over one-year period. The comparative analysis included annual energy production and performance ratio. From these studies, it can be observed that PV installations with pc-Si have the highest energy yields. Regarding the performance ratios, in Beni Mellal the higher values observed only for the pc-Si technology, although in EL Jadida, the mc-Si and pc-Si technologies present almost the same performance ratio.
这项工作的目的是比较摩洛哥两个不同地点(Beni Mellal和EL Jadida)在自然室外条件下不同技术的光伏发电和安装性能。所研究的植物包括单晶硅(mc-si)、非晶硅(ac-Si)和多晶硅(pc-si)三种技术。实验数据记录了一年多的时间。对比分析包括年发电量和性能比。从这些研究中可以观察到,使用pc-Si的光伏装置具有最高的能量产量。关于性能比率,在Beni Mellal中,只有pc-Si技术观察到较高的值,尽管在EL Jadida中,mc-Si和pc-Si技术表现出几乎相同的性能比率。
{"title":"Analysis of weather impact on the yield of PV plants installed in two antagonists cities in Morocco","authors":"Caouthar Bahanni, Mustapha Adar, S. Boulmrharj, M. Khaidar, M. Mabrouki","doi":"10.1109/REDEC49234.2020.9163841","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163841","url":null,"abstract":"The aim of this work is to compare yield photovoltaic and installations performance of different technologies exposed under natural outdoor conditions in two different sites in Morocco (Beni Mellal and EL Jadida). The plants studied consist of three technologies monocrystalline silicon (mc-si), amorphous silicon (ac-Si) and polycrystalline silicon (pc-si). The experimental data has been recorded over one-year period. The comparative analysis included annual energy production and performance ratio. From these studies, it can be observed that PV installations with pc-Si have the highest energy yields. Regarding the performance ratios, in Beni Mellal the higher values observed only for the pc-Si technology, although in EL Jadida, the mc-Si and pc-Si technologies present almost the same performance ratio.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115530253","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: 2
期刊
2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1