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Influence of silver doped indium sulfide on the structural and optical properties of spray pyrolyzed indium sulfide thin films 掺银硫化铟对喷雾热解硫化铟薄膜结构和光学性能的影响
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983882
S. Elfarrass, B. Hartiti, A. Ridah, P. Thevenin
{"title":"Influence of silver doped indium sulfide on the structural and optical properties of spray pyrolyzed indium sulfide thin films","authors":"S. Elfarrass, B. Hartiti, A. Ridah, P. Thevenin","doi":"10.1109/IRSEC.2016.7983882","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983882","url":null,"abstract":"Silver doped indium sulfide thin films were deposited on ordinary glass substrates at 350°C, using chemical spray pyrolysis (CSP) technique. The samples have been prepared by varying the Ag/In ratio in solution from 0 % to 4 %. The effect of silver on structural and optical properties of In2S3:Ag thin films has been investigated in detail using various characterization tools. XRD patterns confirmed that all the films have a nanocrystalline nature. The Raman spectroscopy showed the main mode at 306 cm−1 and 327 cm−1 indicating the presence of the β-phase in all films. Optical transmittance of spray pyrolyzed films exceeds 80% in the visible region and band gaps are estimated varying from 2.60 eV to 2.73 eV.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"73 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116236721","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
Numerical investigation of solidity for cambered Darrieus VAWTs: Analysis of chord length 弧面达瑞乌斯型瓦斯管坚固度数值研究:弦长分析
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7984048
S. Qamar, I. Janajreh
{"title":"Numerical investigation of solidity for cambered Darrieus VAWTs: Analysis of chord length","authors":"S. Qamar, I. Janajreh","doi":"10.1109/IRSEC.2016.7984048","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7984048","url":null,"abstract":"Wind energy technology has seen steady growth in the energy market as a clean, renewable source of energy. This has brought attention to areas with moderate wind energy potentials. Darrieus type Vertical Axis Wind Turbines (VAWTs) allows capturing of this potential for energy production at a cost-effective scale. To improve the performance of these turbines their design needs to be modified. With better manufacturing methods currently available cambered blades are being investigated to improve the performance of these turbines. In particular, turbine solidity is investigated in this paper due to different chord lengths of the blades. The analysis is conducted following high fidelity CFD modeling in unsteady, turbulent regimes with a sliding/rotating mesh configuration to emphasize the role of rotor blades interaction. The study showed that low solidity turbines with cambered blades operate at low coefficients of performance (CP) over a large range of tip speed ratios (TSRs). High solidity turbines have much higher CP, but at smaller TSRs and short range of TSRs. Medium solidity turbines are faced with considerable interaction which compromises their operation at TSRs as low as 1.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123659013","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
Study of a hybrid renewable energy system for a rural school in Tagzirt, Morocco 摩洛哥Tagzirt一所农村学校的混合可再生能源系统研究
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7984079
M. Lamnadi, M. Trihi, A. Boulezhar
{"title":"Study of a hybrid renewable energy system for a rural school in Tagzirt, Morocco","authors":"M. Lamnadi, M. Trihi, A. Boulezhar","doi":"10.1109/IRSEC.2016.7984079","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7984079","url":null,"abstract":"The continuous rise of energy demand worldwide combined with the decrease of natural resources such as fossil fuel represents a huge energy problem which facing humanity. Industry as well as consumers must rethink how to produce and use energy at low cost price. Renewable Energy (RE) applications and energy savings are keys to meet this challenge in a sustainable way and reduce the percentage of carbon dioxide (CO2) emission to environment, which reduces the global warming. This paper presents a methodology to systematically formulate a hybrid renewable energy system (HRES) for a rural school based at Tagzirt, Morocco, which consists of solar, wind and diesel generator as a backup resource as well as battery storage, from the preliminary design stage to the optimal operation. The computation software used for this work is HOMER Pro 3.2.3. The analysis of such hybrid energy systems configuration feeding AC school load of 23 kWh/day energy consumption with a 6.02 kW maximum load demand. The simulation results show that optimized size of components, Wind turbine (2 kW) – solar (5 kW) - diesel generator (7.8 kW) and optimized cost of energy about 1.12 $/kWh.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"7 Suppl 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124117929","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: 20
Control strategy of DFIG for wind energy system in the grid connected mode 并网模式下风电系统DFIG控制策略
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983925
Hicham Lhachimi, Y. El kouari, Y. Sayouti
{"title":"Control strategy of DFIG for wind energy system in the grid connected mode","authors":"Hicham Lhachimi, Y. El kouari, Y. Sayouti","doi":"10.1109/IRSEC.2016.7983925","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983925","url":null,"abstract":"The doubly fed induction generator (DFIG) is the most used technology when it comes to the production of the electric energy for wind power generation. It has the advantage to insure a variable speed operation that will maximize the power extracted from the wind, increase the energy efficiency, reduce the torque oscillations and to generate an electric power with better quality. When we talk about microgrids which are a localized grouping of renewable electricity sources and loads, we should mention two cases of operation: the connected mode and the islanded mode. In this paper, we will focus on the first case (the connected mode). We propose an indirect decoupled control of the active and reactive power for the DFIG when the extracted power from the wind is stable and around 1.5MW, we also propose the control diagrams applied to the rectifier and the inverter with their respective models, in order to guarantee a good energy transmission. Simulation results are obtained for a power around 1.5 MW.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130207965","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
SARIMA-SVM hybrid model for the prediction of daily global solar radiation time series 日全球太阳辐射时间序列预测的SARIMA-SVM混合模型
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983867
S. Boualit, A. Mellit
{"title":"SARIMA-SVM hybrid model for the prediction of daily global solar radiation time series","authors":"S. Boualit, A. Mellit","doi":"10.1109/IRSEC.2016.7983867","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983867","url":null,"abstract":"The measured solar radiation at the ground level is behaving like a very random variable, because of various disturbances encountered throughout its trajectory through the atmosphere in particular; winds, cloudiness, humidity and temperature variations… etc. As the accumulated daily global solar energy is an indispensable parameter for designing of solar systems (photovoltaic and thermal) and its prior knowledge (prediction) is required to control and manage all these solar systems, so we thought improve the predictive model of daily global solar radiation (DGSR) time series. A hybrid model based on the methodology of Box & Jenkins (SARIMA; Seasonal Auto-Regressive Integrated Moving Average) and SVM (Support Vector Machine) is elaborated to predict the clearness index Kt (ratio of daily global solar radiation on the extraterrestrial solar radiation). Then, by a simple calculation, the DGSR is deducted from the Kt. The results showed that the developed hybrid model SARIMA_SVM improves slightly the prediction of DGSR compared to the conventional SARIMA model.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121228874","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: 8
Adaptive backstepping control of three-phase Three-level neutral point clamped shunt active power filter with LCL output filter 带LCL输出滤波器的三相三电平中性点箝位并联有源电力滤波器的自适应反演控制
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983911
Bouchaib Benazza, H. Ouadi
{"title":"Adaptive backstepping control of three-phase Three-level neutral point clamped shunt active power filter with LCL output filter","authors":"Bouchaib Benazza, H. Ouadi","doi":"10.1109/IRSEC.2016.7983911","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983911","url":null,"abstract":"The increasing use of nonlinear loads entails serious electrical energy quality problems in power grids. In this regards, the Three-level shunt active power filter (SAPF) is proposed. The considered SAPF is constituted by an AC/DC Three-level NPC inverter. This latter is connected to the point of common coupling (PCC) through a high order filter instead of conventional filter L. Indeed, a new model for the 3-Level NPC SAPF is developed, this model accounts for the coupling filter LCL. Based on, a non-linear control method is proposed to meet the control objectives: i) Compensation of harmonic and reactive currents referred as power quality improvement. ii) Regulation and balancing DC bus voltage. Moreover, the controller is made adaptive for compensating the switching loss power uncertainty. The proposed adaptive control laws are formally analyzed using tools from the Lyapunov stability and the averaging theory. The performances of the controller are illustrated through several simulations.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116563698","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
Evaluation of a domestic hybrid solar air conditioner system under various climate conditions 国产混合太阳能空调系统在不同气候条件下的性能评价
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983937
A. Laknizi, M. Bouya, Abdellatif Ben Abdellah, Anas El Maakoul, S. Dhimdi, S. Saadeddine
{"title":"Evaluation of a domestic hybrid solar air conditioner system under various climate conditions","authors":"A. Laknizi, M. Bouya, Abdellatif Ben Abdellah, Anas El Maakoul, S. Dhimdi, S. Saadeddine","doi":"10.1109/IRSEC.2016.7983937","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983937","url":null,"abstract":"Despite to their impact on the environment and energy consumption, compression machines (direct expansion) are the most used air conditioner system in the residential sector. This large use is due to the low cost of this system compared to other technologies: absorption machine, ejection machine and adsorption machine. This paper evaluate the performance of solar assisted direct expansion air conditioner under the climate conditions of Rabat-Morocco. The results show that the system can save 20% of energy consumption and 645 Kg of CO2 emission mitigated compared to a conventional air conditioner.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"41 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132389587","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
Modeling of a Single Effect Evaporation desalination process using a Micro-CSP plant 微型csp装置单效应蒸发脱盐过程的建模
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983922
Hassan Mahach, A. Outzourhit
{"title":"Modeling of a Single Effect Evaporation desalination process using a Micro-CSP plant","authors":"Hassan Mahach, A. Outzourhit","doi":"10.1109/IRSEC.2016.7983922","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983922","url":null,"abstract":"This paper presents the modeling of a Single Effect Evaporation (SEE), and the potential of its integration with a micro-CSP plant, as a case study for the integration of Micro-CSP for the generation of industrial process heat. First the performance of the solar collector is evaluated for for different solar tracking systems with one and two axes. This is followed by modeling a SEE system in steady-state operation. The effect of the important design and operating parameters controlling the production of fresh water is investigated, This system was implemented in TRNSYS environment [1]. The simulations were performed over a day through TMY weather file in Marrakech [2].","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122690452","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
Synthesis and characterization of cellulose acetate extracted from paper waste 废纸提取乙酸纤维素的合成及性能研究
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983970
Fatima Zahra Beraich, M. Bakasse, M. Arouch
{"title":"Synthesis and characterization of cellulose acetate extracted from paper waste","authors":"Fatima Zahra Beraich, M. Bakasse, M. Arouch","doi":"10.1109/IRSEC.2016.7983970","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983970","url":null,"abstract":"Cellulose acetate CA was produced from paper wastes by acetylation reactions with glacial acetic acid, concentrated H2SO4, and acetic anhydride. The degree of substitution (DS) values can be controlled by the acetylation time leading to biodegradable cellulose derivatives, which a necessary characteristic is considering environmental and economic aspects. Different acetylation times were analyzed in this work, to study the variation in the quality and degree of substitution (DS) of the cellulose acetate produced. Characterization by using H-NMR, 13C-NMR spectroscopy, X-Ray and SEM revealed a high degree of substitution (DS). The purity of CA is shown by solubility test.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123969091","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
Comparing performance of PI and Sliding Mode in control of grid connected doubly fed induction generator 比较PI和滑模在并网双馈感应发电机控制中的性能
2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7984001
Marouane El Azzaoui, H. Mahmoudi, Chafik Ed-dahmani, K. Boudaraia
{"title":"Comparing performance of PI and Sliding Mode in control of grid connected doubly fed induction generator","authors":"Marouane El Azzaoui, H. Mahmoudi, Chafik Ed-dahmani, K. Boudaraia","doi":"10.1109/IRSEC.2016.7984001","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7984001","url":null,"abstract":"This paper deals with a comparative study between Proportional Integral (PI) and Sliding Mode in control of a doubly fed induction generator to feed power to the grid. Modeling of the DFIG in d-q frame reference is presented and the field-oriented strategy is applied. We use PI and sliding mode techniques respectively to control the rotor side converter (RSC) and the grid side converter (GSC). Simulation results show the interesting performance of the two controllers in term of tracking reference, sudden change of rotor speed, and robustness against parameters variations","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124577993","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: 8
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