2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)最新文献_第10页

DFT and TD-DFT study of novel triphenylamine based organic dyes for dye-sensitized solar cells 染料敏化太阳能电池用新型三苯胺基有机染料的DFT和TD-DFT研究

2020 5th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163607

A. Slimi, M. Hachi, A. Fitri, A. Benjelloun, M. Benzakour, M. Mcharfi

{"title":"DFT and TD-DFT study of novel triphenylamine based organic dyes for dye-sensitized solar cells","authors":"A. Slimi, M. Hachi, A. Fitri, A. Benjelloun, M. Benzakour, M. Mcharfi","doi":"10.1109/REDEC49234.2020.9163607","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163607","url":null,"abstract":"Dye Sensitized Solar Cells (DSSC) are a low-cost alternative to our renewable energy sources in recent decades because they have a potential to achieve high power conversion efficiency (PCE) and their devices are easy to manufacture. For a better understanding of the charge transport process involved in the DSSCs, we studied the effect of conjugation on the electron structure and optical properties of triphenylamine derivatives, we carried out a theoretical study on six organic dyes synthesized by Yu et al. In this work, we studied the effect of different substituents on the electronic and optical properties of six triphenylamine dyes using quantum chemistry methods such as DFT and TDDFT. These calculations were undertaken by the functional hybrid exchange and correlation B3LYP and the base 6-31G (d, p). This model allowed us to determine the optimized structures and the electronic and optical properties (EHOMO, ELUMO, Egap, $lambda_{abs}$, Voc….) Of various dyes studied. We note that the dye P6 exhibits the lowest gap energy and reasonable Voc value. We also simulated the UV-visible spectrum by using the TD-DFT with two functionals CAM-B3LYP and WB97XD to give a look for their effect on optical properties introducing the effect of the solvent (THF). Our results show that the six studied dyes absorb in the visible and are a good promising choice for DSSCs.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"21 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":"122227259","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: 1

Adaptive Backstepping Control and Stabilization of VSC-HVDC Systems VSC-HVDC系统的自适应反演控制与镇定

2020 5th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163905

Kazi Mohamed amine, Machkour Nadia, Majdoul Radouane

引用次数: 0

Treatment of dairy waste by anaerobic digestion to produce methane as green energy 厌氧消化处理乳制品废弃物，产生沼气作为绿色能源

2020 5th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163848

Jean H. El Achkar, Rita Ziade, N. Louka, R. Maroun, Zeina Hobaika

{"title":"Treatment of dairy waste by anaerobic digestion to produce methane as green energy","authors":"Jean H. El Achkar, Rita Ziade, N. Louka, R. Maroun, Zeina Hobaika","doi":"10.1109/REDEC49234.2020.9163848","DOIUrl":"https://doi.org/10.1109/REDEC49234.2020.9163848","url":null,"abstract":"Treatment and management of lactoserum from dairy industry has become a global issue. In fact, generated effluents have high organic loads (lactose, protein, vitamin, minerals etc.) constituting a major source of environmental pollution. In a sustainable green approach, anaerobic digestion is considered a promising solution for the treatment of lactoserum or cheese whey. At first, we conducted a biochemical characterization showing a lactose composition of 52 and 46 g/kg, for sweet and acidic cheese whey, respectively, with an average COD of about 70 g/kg. The biodegradability of sweet lactoserum showed an extremely high value of 97% equivalent to 0.34 $mathrm{N}mathrm{m}^{3}mathrm{C}mathrm{H}_{4}cdot mathrm{k}mathrm{g} mathrm{C}mathrm{O}mathrm{D}^{-1}$. However, low biodegradability was noted for acidic lactoserum with a value of17%. This highlights the importance of the use of the sweet one in terms of energy recovery. For the optimization of the process, we also tried an incursion towards little explored tracks by evaluating the intensification of methane production, applying ultrasounds pretreatment on inoculum. The best yield was obtained after sonication with an energy input of 90 kJ/kg.","PeriodicalId":371125,"journal":{"name":"2020 5th International Conference on Renewable Energies for Developing Countries (REDEC)","volume":"62 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":"127697873","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: 1

Autonomous Solar-Based Aquaponics: Towards Agricultural Sustainability in Lebanon and the Region 自主太阳能水培:在黎巴嫩和该地区实现农业可持续发展

2020 5th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2020-06-01 DOI: 10.1109/REDEC49234.2020.9163832

Haytham M. Dbouk, Fawzi G. Khalife

引用次数: 1

Assessing the Effect of Temperature on Degradation Modes of PV Panels 温度对光伏板退化模式影响的评估

2020 5th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2020-03-24 DOI: 10.1109/redec49234.2020.9163604

B. Nehme, N. M'Sirdi, T. Akiki, B. Zeghondy

引用次数: 4

Sliding Mode Observer Design for Battery State of Charge estimation 电池充电状态估计的滑模观测器设计

2020 5th International Conference on Renewable Energies for Developing Countries (REDEC) Pub Date : 2020-03-23 DOI: 10.1109/REDEC49234.2020.9163592

H. Bouchareb, K. Saqli, N. M'Sirdi, M. O. Bentaie, A. Naamane

引用次数: 2