7^th World Congress and Expo on Green Energy June 24-25, 2019 Barcelona, Spain

Biography:

Eloi Fonseca has been working with critical embedded systems applied to aircrafts, UAVs, small satellites, biomedical engineering electronic systems and security systems since 1995. He has completed his Graduation in Environmental Engineering, Data Processing Technology and Aeronautical Communications Technology; Master’s degree and PhD in Applied Electronic Systems Engineering. Currently, he is a Research Coordinator at Universidade Estadual Paulista “Julio de Mesquita Filho” of the project “Efficiency analysis of complementary energy storage near hydroelectric plants, using electrochemical and hydrogen storage technologies” funded by Companhia Energetica de Sao Paulo-CESP. His entrepreneurial vision allows act him to act as a researcher involved with new approaches for renewable energy systems monitoring and control development.

Abstract:

The research of efficient renewable energy generation, storage and distribution technologies is an important step towards the implementation of continuous energy supply in an electric power grid, due to the intermittency of photovoltaic and wind generators microgrids. Funded by strategic research call of the Brazilian National Electric Energy Agency (ANEEL) the development of innovative Smart Grid Management methodologies employing predictive model analysis was proposed for a hybrid energy storage system consisting of a ion -lithium battery bank and hydrogen storage system using electrolysis fed by a set of photovoltaic plants with interconnected wind turbines as a micro energy network. The development of a robust system of instrumentation and control applied to the project contemplates the development and testing of a control mesh that includes the wireless integration and secure access with own point-to-point encryption applied. The research is part of a structure that was initiated with the implementation of a photovoltaic and wind farm with investments by Companhia Energetica de Sao Paulo (CESP) in previous ANEEL research projects, and is now complemented with the energy storage and dispatch approach. The quality and energy efficiency requirements can be verified in the experiments performed and behavioral models defined for the elaboration of representative mathematical models based on the predictive analysis of the collected data. In the context of increasing use of distributed generation, micro-energy and resource availability efficiently, it is expected to collaborate with the generation of tools from the predictive analysis as a basis for the prospective analysis enabling the development of control and monitoring systems appropriate to the expansion of the use of distributed renewable energy.

Biography:

Xi Lu is an Associate Professor in the School of Environment at Tsinghua University. He has completed his PhD in John A Paulson School of Engineering and Applied Sciences at Harvard University in 2010. After then, he continued working at Harvard as a Postdoctoral Fellow, Research Associate and Lecturer until joining Tsinghua in 2015. His research interests emphasize study of the technical, economic, and environmental dimensions of low or zero carbon energy sources as a means to reduce emissions of greenhouse gases (GHGs) and air pollutants. He has published papers in Science, PNAS, Nature Energy, and Nature Communications on these topics. He has won the Chinese Government Award for Outstanding Self-Financed Students Abroad in 2010, selected in the One Thousand Program for Young Professionals in 2015, and received the National Science Fund for Excellent Young Scholars in 2017.

Abstract:

Realizing the goal of the Paris Agreement to limit global warming to 2°C by the end of this century will require most likely deployment of carbon-negative technologies. It is particularly important that China, as the world’s top carbon emitter, avoids being locked into carbon-intensive coal-fired power generation technologies and undertakes a smooth transition from high- to negative-carbon electricity production. We focus here on deploying a combination of coal and biomass energy to produce electricity in China using an integrated gasification combined cycle system with carbon capture and storage (CBECCS). Such a system will also reduce air pollutant emissions, thus contributing to China’s near-term goal of improving air quality. We evaluate the bus-bar electricity-generation prices for CBECCS with mixing ratios of crop residues varying from 0% to 100%, as well as associated costs for carbon mitigation and co-benefits for air quality. We find that CBECCS systems employing a crop residue ratio of 35% could produce electricity with net-zero life-cycle emissions of greenhouse gases (GHGs), with a levelized cost of electricity (LCOE) of no more than 9.2 US cents per kWh. A carbon price of approximately $52.0/ton would make CBECCS cost-competitive with pulverized coal power plants. Therefore, our results provide critical insights for designing CBECCS strategy in China to harness near-term air quality co-benefits while laying the foundation for achieving negative carbon emissions in the long run.

Biography:

Deborah Moura Rebouças has her expertise in environmental stresses in plants. Her study aims to characterize the lipids and their changes upon stress and the genes underlying the changes. By establishing a profile of these key factors, agriculture would gain a direction for selective breeding of plants that are more resilient to environmental stresses.

Abstract:

Statement of the Problem: Tropospheric ozone is considered the most detrimental air pollutant to plants. At the cellular level, ozone is itself a strong oxidant and its decomposition in the apoplast generates a range of reactive oxygen species (ROS). Cell membranes are primary targets of damage induced by ROS and the preservation of cell integrity through stable membrane lipid composition is essential to plant survival. The purpose of this study is to investigate the effects of ozone on physiology, on plastidial galactolipid content, as well as on the expression of genes related to membrane lipid metabolism in two cowpea cultivars: EPACE-1 and IT83-D.

Methodology & Theoretical Orientation: Ozone stress (120 ppb) was applied on three-week-old seedlings under controlled conditions during two weeks. After 7 and 14 days of treatment, stomatal conductance and phytotoxic ozone dose were measured. Leaf lipids were extracted in chloroform: methanol:water separated by thin layer chromatography and analyzed using a gas chromatograph/mass spectrometer. Leaf total RNA was extracted; cDNAs were used for the detection of transcript accumulation by real-time PCR.

Findings: Significant effects of ozone were observed at the cellular level. First, ozone exposure provoked symptoms of leaf injury and H₂O₂ accumulation. Second, the ozone treatment induced decreases in the plastidial galactolipids monogalactosyldiacylglycerol (MGDG) and digalactosyl-diacylglycerol (DGDG) in both cultivars. These effects were stronger in the IT83-D cultivar, which also showed specific ozone responses such as a higher DGDG: MGDG ratio and the coordinated up-regulation of DGDG synthase (VuDGD2) and ω-3 fatty acid desaturase 8 (VuFAD8) genes, suggesting that membrane remodeling occurred under ozone stress in the sensitive cultivar.

Conclusion & Significance: Taken together, these results suggest that the ozone treatment had a limited impact at whole-plant level but provoked leaf injury and altered membrane lipids. These effects were more pronounced in IT83-D, revealing intervarietal differences in ozone tolerance.

Biography:

Natássia A Ribeiro has her expertise in biological compounds extracted from seaweed and its biological activities. She has completed her Graduation degree in Biological Sciences and her Master’s and Doctoral degree in Biochemistry at Federal University of Ceará, Fortaleza, Brazil. Upon graduation, she has worked with anticoagulant, antithrombotic and pro-inflammation activities. In her Masters and Doctoral degrees, she has worked with the antinociceptive and anti-inflammatory activities, always using biomolecules such as polysaccharides of algae. Currently, she is working with the use of algae in food and participates in a project to grow algae in laboratories and its use to generate ethanol and organic acids.

Abstract:

The first studies on the economic use of marine macroalgae in Brazil, arose in the decade of 70. Besides the ecological importance, they are used worldwide as food, fertilizers, biopharmaceuticals and ficocoloides as biomass for the production of biofuels. Marine macroalgae have rapid growth, high levels of carbohydrates, and can be grown in wastewater, without the use of land and agricultural inputs. The Laboratory of Carbohydrates and Lectins (Carbolec) in partnership with the Laboratory of Biotechnology Algae and Processes (BioAP), both of the Federal University of Ceará, Brazil, conduct research in the area of cultivation, developing and optimizing new technologies, directing the species cultivated for hydrolysis processes in order to produce ethanol and organic acids. The macroalgae Gracilaria birdiae, Hypnea musciformis and Solieria filiformis were cultivated in the open sea at the beach of Flecheiras, municipality of Trairí, Ceará. The cultivation (open sea) was performed using the "long-line" technique, and in the laboratory the spore culture technique was used. For the hydrolysis, the dry alga was hydrolyzed in acid solution, the residues were weighed and the hydrolyzed volume was recovered. The sterile hydrolyzate was fermented by Saccharomyces cerevisiae yeast strains. Aliquots were collected from the fermentation medium to analyze the fermentation products. The concentrations of these products were determined by High Efficiency Liquid Chromatograph. Promising results have emerged in the growing area, where daily growth rates were satisfactory with an average of 5.0%. In the laboratory, the technique of spore culture using the species G.birdiae proved effective for its applicability to seedling production and repopulation of degraded areas. Tests applying acid hydrolysis of cultured macroalgae showed that mild hydrolysis conditions are capable of generating significant yields of fermentable carbohydrates when compared to lignocellulosic materials. Thus, the use of algae for the production of biofuel through renewable resources reduces environmental impacts.

Biography:

Jinjin Guan is pursuing her PhD in the Geography Institute at Ruhr University, Bochum, Germany. Her research program is "On-shore Wind Farm Planning and Landscape Protection", which aims to research the evaluation method for landscape visual impact in wind farm planning. She has set up a quantitative, modular evaluation model based on visual perception theories and landscape planning knowledge. This evaluation model can definitely evaluate the magnitude of landscape visual impact and provide scientific, quantitative guideline for decision-making in wind farm planning. She has landscape planning working experiences in Tongji Urban Planning and Research Institute in Shanghai before PhD program.

Abstract:

With the prosperity of wind industry, more spaces are occupied by wind farms, inevitably bringing various environmental impacts. Among them, the landscape visual impact is of great public attention, which influences the acceptance rate of wind energy at local level and the project approval process. But the landscape visual impact is too subjective to assess without sufficient theoretical foundation and standards for evaluation, which causes opacity and ambiguity in planning process and legal disputes. This paper combines visual perception theories, wind energy technologies and landscape planning knowledge as theoretical foundation, proposes an indicator set for landscape visual impact evaluation: distance, height of turbine, number of turbine, rotation speed , landscape types, cultural heritage value and recreational function. Relationship of each indicator with landscape visual quality is analyzed by statistical methods and their comprehensive correlations are calculated in Matlab. The conclusion is a formula describing the landscape visual impact with indicators and their correlation coefficient. This formula definitely explains which indicators are positively related to the landscape visual impact, and the correlation between indicators that can provide technical reference for decision-making in wind farm planning. This paper takes Zhongying Wind Farm of Ningbo City in China as a case study. It consists of 18 wind turbines with the total height of 80 meters. 193 residents were questioned by means of a questionnaire attached with a brief introduction of the wind farm project and concept of landscape visual impact. The results show that the indicators of distance, height of turbine and landscape type are obviously positive, followed by indicators of number of turbine, recreational function, rotation speed and cultural heritage value. This evaluation formula can quantitatively assess the landscape visual impact and provide accurate indicator set for landscape visual quality evaluation in a specific area.

Biography:

Md Abdul Jalil has completed his BSc in Civil Engineering at Bangladesh University of Engineering and Technology (BUET) in 1986; MSc in Civil Engineering with a specialization in Environmental Engineering at the same university in 1988 and PhD in Civil Engineering at Tokyo University, Japan under Asian Development Bank Scholarship in 1993. He has conducted Postdoctoral Research on Water Management at Loughborough University, UK under Commonwealth Fellowship during 2005-2006. He was appointed as a Lecturer in the Department of Civil Engineering at BUET in 1986 after his graduation. He was promoted to the post of Assistant Professor in 1989. He became an Associate Professor in 1996. He was appointed as a Professor in 2001. He has published over 40 papers till now in international and national journals, proceedings of conferences and seminars. He has presented a number of papers in home and abroad. He has worked as a member of different committees of national organizations. He also works as a Consultant and has completed over 50 important national development projects.

Abstract:

Biogas generation based on market wastes is a promising technology to manage the solid wastes of the markets. This paper presents the results of two sets of laboratory experiments on biogas generation from the wastes of a rural vegetable market of Bangladesh under daily feed condition at ambient temperature. The easily biodegradable wastes were used as the feed for biogas generation. Cow dung, cauliflower stick, papaya and potato were the major biodegradable wastes. Daily average composition of the wastes was used as substrate for the experiments after cutting the wastes into small pieces (less than 4 mm in size). The total solids (TS) and volatile solids (VS) of the biodegradable portion of the market wastes were 17.84% and 13.85% respectively. The experimental setups were placed in a large closed chamber and were operated at ambient temperature as controlling temperature within a bioreactor at rural set up is very difficult. A 5 L reactor was initially loaded with 750 g waste and inoculum was added to make the effective volume of 2 L (single chamber reactor) in the first set. In the second set, two digesters of 1.5 L volume each were connected in series near the bottom to have a double chamber reactor. It was initially fed with 750 g wastes (350 g in each digester) and inoculum was added to make the effective volume of 1 L for each digester. Both the reactors were operated for 40 days. Considering the hydraulic retention time as 40 days, from the 2^nd day of operation, the single chamber reactor was fed daily one time with a mixture of 18.75 g waste and required volume of tap water (natural groundwater) to make the total volume of 50 mL after dispensing equal volume of slurry from the reactor through the outlet. For the double chamber reactor, the first chamber of the reactor was fed daily with the same mixture as that of the single chamber reactor after taking out 50 mL slurry from the second chamber. The daily biogas production was measured by water displacement method and the daily temperature within the enclosed chamber was recorded with a thermometer. During the experiments, it was observed that the daily average temperature varied in between 19 and 27^oC and it did not affect the rate of biogas production. The results of the experiments revealed that the stable rate of gas production was 0.25 m³/m³/d at the organic loading rate (OLR) is 1.42 g VS/L/d. The outlet chamber produced roughly double volume of gas in total compared to the inlet chamber of the double chamber reactor. But the stable rate of biogas generation was 0.25 m³/m³/d for the double chamber reactor at the OLR of 1.42 g VS/L/d. Consequently, the stable biogas generation was same for both the reactors in terms of organic loading and it was 0.18 m³/kg of VS added.

Biography:

Reine Reoyo-Prats is pursuing her PhD. She is working on aging and the characterization of materials intended to be used as solar receiver in high concentrated solar power plants. She works cooperatively with others laboratories and partners in Europe and south of Mediterranean.

Abstract:

Concentrated solar power plants are a promising solution to limit the dependency of some countries to fossil fuels or nuclear energy. These plants, located in sunny regions, are exposed to extreme climatic conditions. Moreover, they are supposed to work during 25 years. So, it is necessary to ensure the durability of the different components. In particular, high solar absorptance receivers are a key element in a CSP plant project, because they receive the concentrated sun arrays, and are submitted to important thermal shocks. In this presentation, different receiver materials are studied: four alloy substrates combined with four new absorber coatings, operable in solar towers with molten salts or steam as heat transfer fluids, and a classic Pyromark® paint considered as a reference. In order to test the durability of the coatings, 200 solar accelerated aging cycles were applied on the samples, using a concentrated solar facility (named SAAF). The cycles were defined so as to apply realistic high solar flux and temperature on the front side of the samples, with high cooling and heating rates reproducing the fast variation of solar irradiation due to cloudy weather and subsequent thermal shocks. The optical characteristics of the coatings were measured at the beginning and at regular intervals during the aging procedure. Different behaviors of the coatings were observed depending on the substrate, before any aging cycle. After this first aging campaign, some evolutions were observed on the solar absorptance or thermal emittance, depending on the substrate and the coating. Nevertheless, the degradations noticed are not significant enough to conclude about the durability of the coatings.

Biography:

Remus Prăvălie is an assistant professor at the University of Bucharest, Faculty of Geography. His interdisciplinary research is concerned with the field of global environmental issues such as climate change, impact of climate change on environmental systems or environmental pollution, but also with the solutions of these environmental issues, like renewable energies. He has completed his PhD at the age of 27 years at the University of Bucharest and is currently manager of a postdoctoral project at the same university. Remus Prăvălie has published more than 20 papers in prestigious journals in the field of environmental sciences.

Abstract:

The use of solar energy is currently considered a highly promising strategy for a worldwide clean energy transition and for the sustainable development of human society. However, the large-scale implementation of this renewable energy is largely conditioned by the available information on the distribution and intensity of existing solar resources, which so far have been insufficiently thoroughly explored globally. This paper aims to investigate the solar energy potential at global scale, using representative spatial data on global horizontal irradiation (GHI, relevant parameter for assessing energy generation via photovoltaics/PV technologies) and direct normal irradiation (DNI, important parameter for the development of concentrating solar power/CSP systems), which have recently become available globally, at high spatial resolution. Based on the recent data, the paper essentially aims to map and statistically analyze the solar energy potential globally, continentally and nationally, using geostatistical methods applied via Geographical Information Systems. Our findings indicated the existence of 6 major global GHI (western South America, northern, eastern and southwestern Africa, the Arabian Peninsula and Australia), and DNI (southwestern North America, western South America, southwestern Africa, northwestern Arabian Peninsula, Tibetan Plateau and Australia) hotspots, characterized by peak annual energy potential values, i.e. >2200 kWh/m² (for GHI) and >2500 kWh/m² (DNI), respectively. It was found that these regions with abundant solar resources covered a vast global area (~15 mil km²/10% of the world's land area, for GHI, and ~8 mil km²/5%, for DNI), across numerous countries, most of which in Africa and Asia. Our results therefore showed that that many countries worldwide hold the much-needed solar resources for a large-scale implementation of PV and CSP systems, the most important worldwide technologies currently used in solar electricity generation.

Biography:

Josep Albero has obtained his Chemical Engineering degree at the Jaume I University of Castellon, Spain in 2005; MSc degree at Rovira I Virgili University in 2009. He has worked in the synthesis and characterization of nanocrystalline semiconductor quantum dots for photovoltaic applications when received his PhD in the group of E. Palomares at ICIQ. After that, he joined H Garcia group in ITQ as Postdoctoral Fellow. His research interest is the charge transfer reactions in nanostructured materials and their applications in renewable energies.

Abstract:

Photoassisted CO₂ methanation can be carried out efficiently at 250 ^oC using Cu₂O nanoparticles supported on few layer graphene (Cu₂O/G) as photocatalyst. The Cu₂O/G photocatalyst has been prepared by chemical reduction of a Cu salt (Cu (NO₃)₂) with ethylene glycol in the presence of defective graphene obtained from the pyrolysis of alginate acid at 900 ^oC under Ar flow. Using this photocatalyst a maximum specific CH₄ formation rate of 14.93 mmol/g_Cu2O·h and apparent quantum yield of 7.84 % was achieved, which is one of the highest reported values for the gas-phse methanation reaction at temperatures below Sabatier reaction (>350 ^oC). It was found that the most probable reaction mechanism involves photoinduced electron transfer from the Cu₂O/G photocatalyst to CO₂, while evidence indicates that light-induced local temperature increase and H₂ activation are negligible. The role of the temperature in the process has been studied, the available data suggesting that heating is needed to desorb the H₂O formed as product during the methanation. The most probable reaction mechanism seems to follow dissociative pathway involving detachment of oxygen atoms from CO₂.

Biography:

Abstract:

Statement of the Problem: Global greenhouse gas emissions have reached 37 bln tons in 2018. The transport sector is the second most significant atmospheric pollutant (after electricity and heat production). In particular, it contributes 23% of global energy-related greenhouse gas emissions and has a growth rate of about 2% annually. Thus, green mobility has become one of the most recent global trends. The growth of electric vehicles segment is one of the consequences of the above trend. The purpose of this article is to describe modern global trends in green transportation and to propose a possible solution. Findings: By using the instruments of comparative analysis we prove the disadvantages of the existing transport. Taking the above into account, we propose a new approach to transportation. And we suggest considering the innovative transport SkyWay (passenger and cargo) as one of the most efficient global solutions in terms of ecological sustainability. SkyWay transport system, when applied globally, can save annually about 30 bln tons of fuel and 106 bln tons of oxygen, which would be needed for burning the above fuel, and prevent the emission of about 1.7 bln tons of harmful substances to the atmosphere. Besides, by moving transport to the second level (above the ground), we can return to the agriculture (and oxygen production) about 1 mln square km of soil, which is currently covered by asphalt. Conclusion & Significance: SkyWay is an innovative transport system, which can significantly contribute to the realization of the UN Sustainable Development Goals. Taking the above into account, SkyWay has a great potential for future implementation worldwide, especially in the countries supporting green technologies.

Biography:

Seyed Amir Naser Harati has completed his PhD in Civil Engineering Environment from K N Toosi University of Technology in Tehran-Iran. He has served as the Operation Manager and Director of Technical and Engineering Office in the Waste Management Department at Tehran Municipality. He is currently the Deputy Director of Urban Services and Urban Environment at Tehran Municipality.

Abstract:

Statement of the Problem: Due to the progress of urbanization and complications in management in this regard, as well as the necessity of controlling pollution stemming from waste production, traditional methods no longer answer the management requirements in this field. Therefore, because of the multi-faceted nature of waste management in large cities, on the one hand, and the necessity of management of financial and human resources, on the other, utilizing methods and features associated with smart cities is of high importance.

Methodology & Theoretical Orientation: In this study, by using radio frequency identification (RFID) systems and reading and processing of the data, in addition to reduction of human resources and current costs, the goal was to determine planning details of the city. The other advantages of this method include reduced pollution associated with collection trucks and lower emission of greenhouse gases due to the shorter staying duration of waste in the bins.

Findings: The results indicated that 12.7% of bins existing in the initial data were identified after the implementation of the current method, resulting in savings in the number of bins, optimal navigation of waste collection trucks, and division of collection. By using smart methods, coding the waste bins and installing reader on trucks, in addition to facilitating instantaneous transparency, all the waste collection elements were analyzed in the electronic panel to allow future planning.

Biography:

Marcel Kai Loewert has completed his Master of Science degree in Bioengineering at the Karlsruhe Institute of Technology in Germany, where he focused on food process engineering and energy process engineering. Since 2015, he has developed knowledge in the field of heterogeneous catalysis in microstructured reactors, especially in decentralized applications for synthesis gas generation, handling and conversion to synthetic fuels. His fields of work focus on product analysis (gas phase, liquid phase, and solid wax phase), commissioning, experimentation planning, process simulation and operando methodology for catalysts.

Abstract:

The Fischer-Tropsch (FT) reaction is usually operated stationary to convert syngas from fossil carbon sources to produce high-grade synthetic fuels. Nowadays, huge efforts are made to close the anthropogenic carbon cycle based on renewable resources. In the context of Power-to-X, an excess of renewable electrical energy could be used to transform water and CO2 into syngas, which is the essential feedstock to the Fischer-Tropsch reaction. The problem of renewable electricity is its decentralized and fluctuating nature which is often misaligned with the actual demand. To avoid large, expensive storage tanks for hydrogen, dynamic operation of the synthesis step is considered for effective storage processes. A large internal surface area strongly improves heat and mass transfer within microstructured reactors developed at IMVT. Due to their compactness compared to industrial reactors, they operate in much smaller applications, while showing a distinctly higher overall process performance. Consequently to the lower holdup, changes in process parameters such gas velocity, concentration or temperature can occur faster. Additionally, innovative evaporation cooling could help change reactor temperatures in shorter time. In this study, highly dynamic changes in temperature and gas composition were applied. The laboratory scale reactor system has the capability to produce up to 7 L of product per day. To determine the limits of this system, periodic changes of different time scales were applied and finally lead to a real-time scenario for highly fluctuating gas concentrations discretized from a solar panel energy output profile to be translated into a simulated, standalone electrolysis unit. Additionally, synchrotron experiments were conducted to analyze the catalyst state during and after drastic parameter changes to measure e.g. the degree of catalyst oxidation during potential deactivation. These experiments were conducted using a special measurement cell compatible with the liquid products that form during reaction and rapid process changes.

Biography:

Mr. Hicham Bouzekri, PhD (Male): he received his PhD in wireless communication at Texas A&M University in 2002. He is a senior engineer in Electronics and Communication graduated from Mohammadia engineering School and has a master from the university of Florida. Currently, he is the director of the R&D and Industrial Integration department at Masen. With his 20 years of professional experience in the Research and Industry sectors, Dr. BOUZEKRI brings his expertise and knowledge to make a considerable contribution to Masen’s R&D and Industrial Integration Activities.

Abstract:

 The chief advantage of air solar tower power plants compared to the other concentrating solar power technologies is the ability of achieving temperatures as high as 700°C. This latter depends on the receiver design and the heat transfer fluid used. The heliostat solar field in central receiver systems is considered as the main subsystem due to its high costs (up to 50% regarding the capital expenditure of the total plant). Therefore, the main focus of this study is the design and cost analysis of a heliostat field in an air-based 150 MWe solar tower power plant. Due to its high insolation with annual DNI of 2712 kWh/m², this study was conducted for De Aar region in South Africa. The SF is designed, using SolarPILOT, such that the power delivered meets only the power required by the PB or the TESS at design conditions in order to have an operation strategy that covers peak hour demand with a receiver thermal power of 1210 MWth. In order to demonstrate the high potential of multi-tower configuration in terms of solar energy gained and reduction of investment costs, this configuration was compared to a multi-receiver configuration, where four receivers are mounted on the top of the same tower. Each receiver was designed with a thermal capacity of 302.5 MWth. The results show that, in the first configuration, the annual energy reaching the receiver is about 2296.33 GWh, with a 477 M$ of solar field cost investment, while in the second configuration, the annual energy produced is about 2490 GWh with only 184 M$ of solar field cost investment.It can be concluded that the greatest gain of energy is achieved with multi-tower configuration with a low cost comparing with the first configuration.Future work includes an estimation of the overall techno-economic performance of the plant coupled with thermocline packed bed storage system and steam Rankine cycle.

Biography:

Nadjib Drouiche is a senior researcher at the Centre de Recherche en Semi-Conduceurs pour l’Energetique (ALgeria). He is also the director of the Crystal Growth and Metallurgical Processes (CCPM) and Head of the environmental team. His research interests include adsorption, membrane processes, electrochemical processes using sacrificial anodes, Advanced Oxidation Processes, and recovery of by-products from industrial waste. He has published more than 80 papers in ISI-ranked journals with more than 1000 citations and his h-index is 21. Dr. Drouiche was awarded TWAS-ARO YAS Prize 2012: "Sustainable Management of Water Resources in the Arab Region".

Abstract:

Treatments of fluoride (F), copper (Cu) and F-Cu from semiconductor-based silicon etching rinse baths by electrocoagulation (EC) using aluminum plate electrodes were investigated in this study. The effects of important process variables such as current intensity, initial pH and initial concentration on the removal efficiencies of F and Cu were evaluated. Removal efficiencies for F and Cu in the single system were found at about 99% at optimum operating conditions.The highest removal efficiencies were achieved at pH 3 for F and between pH 3 and 5 for Cu containing synthetic wastewaters. Experiments were conducted with different F/Cu ratio when Cu concentration was kept constant and F concentration was increased, the highest removal efficiency was observed at lower concentrations. EC study provided high removal efficiencies of F and Cu from semiconductor synthetic wastewater.