2013 International Renewable and Sustainable Energy Conference (IRSEC)最新文献_第8页

Bioethanol production process using the non-conventional yeast Candida tropicalis 利用非常规酵母热带假丝酵母生产生物乙醇的工艺

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529710

L. Jamai, M. Ettayebi

{"title":"Bioethanol production process using the non-conventional yeast Candida tropicalis","authors":"L. Jamai, M. Ettayebi","doi":"10.1109/IRSEC.2013.6529710","DOIUrl":"https://doi.org/10.1109/IRSEC.2013.6529710","url":null,"abstract":"To simplify the fermentationprocess by eliminating the separate saccharificationstep, numerous genetically engineered S. cerevisiaestrains capable of secreting glucoamylase and /or α-amylase have been developed. This work undertakes a different approach to eliminate the saccharificationstep. The culture medium is supplemented with a-amylase and the fermentation of starch to ethanol is done by the non-conventional yeast Candida tropicalis. Yeast cells are free or immobilized in a supporting substrate like calcium alginate. Products other than ethanol are also recovered after fermentation; which makes this process more economically feasible.Our interest inC. tropicalisis based on its ability to metabolize a large variety of carbon on which it grows as a sole carbon and energy source, generating high biomass yields since its metabolism becomes purely oxidative when enough oxygen is supplied in the culture medium. Supplementation of the starch medium with a-amylase is sufficient to drive the fermentation of starch to ethanol by C. tropicalis. These results show that a recombinant C. tropicalis producing a-amylase is valuable for ethanol production from starch-rich plant byproducts. This fermentation process demonstrated a reduction in ethanol production costs. We were able to reach ethanol yields comparable to those obtained by some of the best systems such as those using cell surface-engineered S. cerevisiaedisplaying both aamylase and glucoamylase. This non-conventional yeast species brings more economical value to both first generation (cereal grains) and second generation (Iignocelluloses) feedstock. It is feasible to add further value to this process by integrating fermentation co-products that are essential to the profitability of the fuel ethanol business.","PeriodicalId":130577,"journal":{"name":"2013 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114249002","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

Implementation of Moroccan map solar cooling based on the dynamic study by a solar adsorption refrigeration machine working with activated carbon- ammonia pair using a sensor plane 基于动态研究的太阳能吸附制冷机采用传感器平面与活性炭-氨对工作，实现摩洛哥地图太阳能制冷

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529694

H. El Kalkha, A. Mimet

引用次数: 0

Effect of diffuser configuration on the flow field pattern inside wind concentrator 扩压器配置对聚风器内流场分布的影响

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529705

A. Amer, A. Ali, Y. Elmahgary, S. Ookawara

引用次数: 4

Gasification of tire crumbs inside a drop tube reactor: Seeking optimal conversion conditions 轮胎碎屑在滴管反应器内的气化:寻求最佳转化条件

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529666

I. Adeyemi, I. Janajreh

{"title":"Gasification of tire crumbs inside a drop tube reactor: Seeking optimal conversion conditions","authors":"I. Adeyemi, I. Janajreh","doi":"10.1109/IRSEC.2013.6529666","DOIUrl":"https://doi.org/10.1109/IRSEC.2013.6529666","url":null,"abstract":"In this work, systematic analysis and numerical model was developed for a drop tube reactor (DTR) using tire crumbs as the feedstock. The feedstock characterization, ultimate and proximate analysis, was first determined using TGA and Flash (CHNOS) analyzer at the Masdar Institute (MI) Waste to Energy Laboratory. The systematic analysis was then used to determine the mole fraction of the product gases and the cold gasification efficiency (CGE) at varying reactor temperature and pressure. A numerical model was then developed using the lagrangian DPM of the tire particles in eularian continuous phase of the oxidant. This model also takes into account the turbulent flow (RNG k-ε model), gas phase gasification (Species Transport model), tire particles devolatilization (Two Competing Rate model), heterogeneous char reaction (Multiple Surface reaction model), particle dispersion by turbulent flow (Stochastic Discrete Random Walk model), radiation (P1 model) and particle distribution (Rosin Rammler model). The temperature distribution and product distribution of the developed model is also presented in this paper.","PeriodicalId":130577,"journal":{"name":"2013 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115391117","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

Simulation of In0.52Ga0.48N solar cell using AMPS-1D 利用AMPS-1D模拟In0.52Ga0.48N太阳能电池

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529713

D. Benmoussa, B. Hassane, H. Abderrachid

{"title":"Simulation of In0.52Ga0.48N solar cell using AMPS-1D","authors":"D. Benmoussa, B. Hassane, H. Abderrachid","doi":"10.1109/IRSEC.2013.6529713","DOIUrl":"https://doi.org/10.1109/IRSEC.2013.6529713","url":null,"abstract":"InxGa1-xN alloys feature a bandgap ranging from 0.7eV to 3.4eV, covering almost the entire solar spectrum. To optimize the efficiency and the best parameters of solar cells, numerical simulations of InxGa1-xN single junction. The simulation modeling is important and indispensable for designing and fabricating InxGa1-xN single junction. We changed the In doping and the thickness of the p-In52Ga48N to determine the short circuit current density (Jsc), open circuit voltage (Voc), fill factor (FF) and conversion efficiency (η). For In52Ga48N single junction solar cell, the Jsc, Voc, and FF have a strong dependence on the In composition. In composition is a critical parameter to determine Jsc, Voc, FF, and η of InGaN solar cells. In0.52Ga0.48N Solar cell shows the maximum il ~ 23%. The band gap of In0.52Ga0.48N is 1.64 eV and is almost the same with AlGaAs. When the total layer thickness is greater than 500 nm, the absorption becomes saturated and the η increases smoothly. The simulation results are congruent with this trend.","PeriodicalId":130577,"journal":{"name":"2013 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127493868","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

Introduction of Concentrating Solar Power based on the use of parabolic trough mirrors in the evaluation of the moroccan power grid adequacy 在评价摩洛哥电网充分性时采用抛物面槽镜为基础的聚光太阳能

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529636

M. Oukili, S. Zouggar, M. Seddik, F. Z. Kadda, M. El Hafyani, T. Ouchbel, F. Vallée

引用次数: 0

Energy efficiency in buildings: Thermophysical characterization of building materials 建筑能源效率:建筑材料的热物理特性

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529675

M. Boumhaout, L. Boukhattem, F. Ait Nouh, H. Hamdi, B. Benhamou

引用次数: 7

TVAC based PSO for solving Economic and Environmental Dispatch considering security constraint 基于TVAC的粒子群算法求解考虑安全约束的经济环境调度问题

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529685

A. Salhi, D. Naimi, T. Bouktir

引用次数: 8

Cascaded DC-DC Converters as a Battery Charger and Maximum Power Point Tracker for PV Systems

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529642

A. E. El Khateb, N. Rahim, J. Selvaraj

引用次数: 7

Optimal energy management of an autonomous hybrid system by using the linear programming method 用线性规划方法求解自主混合动力系统的最优能量管理

2013 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2013-03-07 DOI: 10.1109/IRSEC.2013.6529709

F. Z. Kadda, S. Zouggar, M. Elhafyani

引用次数: 5