IEECP’21 Conference e-proceedings

ISNI: 0000000506803928

Exergy Methods for Addressing Climate Change and Other Environmental Impacts
Marc A. Rosen
IEECP’21 Conference e-Proceedings

Abstract: The use of exergy methods is described as tools for addressing climate change so the benefits can be appreciated and attained. Exergy can be used to understand climate change measures and to assess and improve energy systems, and can help better understand the benefits of utilizing sustainable energy by providing more useful and meaningful information than energy provides. Exergy clearly identifies efficiency improvements and reductions in wastes and environmental impacts attributable to sustainable energy. Exergy can also identify better than energy the environmental benefits and economics of energy technologies. Exergy should be applied in addressing climate change […] Read more.

Modelling of wake velocity and turbulence intensity of a wind turbine using machine learning algorithms
E. Y. K. Ng, Shantanu Purohit, Ijaz Fazil Syed Ahmed Kabir
IEECP’21 Conference e-Proceedings

Abstract: In this talk, three machine learning (ML) algorithms viz. Support Vector Regression (SVR), Artificial Neural Networks (ANN), and Extreme Gradient Boosting (XGBoost) are implemented to predict wake velocity and turbulence intensity from a wind turbine at different downstream distances. To this end, a set of high-fidelity numerical simulations are performed for the NREL Phase VI wind turbine to produce training and test datasets for the three machine learning algorithms. Using the trained model, the wake flow field downstream of the blade and turbulence […] Read more.

Ceramic Electrolytes and Electrodes for All-Solid-State Batteries with High Energy and Power Density – Environmentally Benign, Inexpensive, Safe and Long Lasting
Werner J.F. Weppner
IEECP’21 Conference e-Proceedings

Abstract: Solids can have a wide variety of structural and functional properties. In terms of electrical conductivity, they are used as metallic conductors, semiconductors or insulators. Ceramic materials can even show superconductivity at practically usable temperatures. In addition, ceramics are also able to transport ions. In many cases this conductivity is low, but in some cases it is very high and of practical importance due to structural disorder in the crystal lattice. As a result, solids can take on tasks that electrons are unable to perform. These are particularly important in the area of energy conversion and storage as well as environmental protection. In times of climate change and resource conservation, they are of outstanding practical […] Read more.

Recent and Future Research on Microgrid Clusters
Farhad Shahnia
IEECP’21 Conference e-Proceedings

Abstract: Electricity systems around the world are experiencing a radical transition as the consequence of replacing fossil fuels, used for electricity production, by sustainable and cleaner energies. The growing penetration of renewable energies requires smarter techniques capable of handling the uncertainties of these intermittent sources. Along with this change, traditionally centralized power systems are also converting into distributed self-sufficient systems, often referred to as microgrids, that can operate independently. This talk will focus on remote area microgrids as a hot research topic in Australia and Southeast Asia that have hundreds of remote and off-grid towns and communities […] Read more.

A Review of Fiber Reinforced Plastic Laminated Structures for more Efficient and Clean Transportation
Roselita Fragoudakis
IEECP’21 Conference e-Proceedings

Abstract: Laminated composite materials are a lighter and of customizable flexibility material alternative for road vehicles. FRP laminated structures in the automotive industry may be an ideal solution for lighter and safer vehicles, while the weight reduction is also associated with lower fuel emissions. In this paper, we investigate the behavior of laminated FRP structures under bending and more specifically how the number of layers and stacking sequence of the structures affect their performance. A theoretical approach to the design of such […] Read more.

Lignocellulose as a fundamental resource for a sustainable development
Maria Laura Tummino
IEECP’21 Conference e-Proceedings

Abstract: Nowadays, the topic of environmental preservation and remediation plays an important role within the activities of the scientific community. Indeed, the procrastination of effective measures to mitigate the environmental damages caused by human activities is no longer possible. In particular, the use of non-fossil substances should be promoted for different reasons: to reduce the environmental disequilibria of the areas involved in the fossil fuel extraction; to decrease the impact of emissions and by-products related to the industrial […] Read more.

A cleaner process for heavy oil extraction from oil sand using a bio-based solvent
Feng Lin
IEECP’21 Conference e-Proceedings

Abstract: Non-aqueous extraction (NAE) at ambient conditions provides many advantages over the current commercial hot water method for processing mined oil sand, but several challenges remain largely due to the use of a hazardous conventional organic solvent (COS) such as toluene or heptane. In this work, a cleaner, more sustainable NAE process using a low-cost, eco-friendly, bio-based solvent, was developed. Results indicate that the bio-solvent extraction could achieve oil recoveries of close to 100% for different grades of ores, the highest yield compared to those often obtained using a COS (toluene or heptane). The total water and solids contents in the supernatant of the extract were […] Read more.

Model Predictive Control for Intelligent Building Energy Management
Man Pun Wan
IEECP’21 Conference e-Proceedings

Abstract: The building sector consumes over 30%, with an annual growth rate of 1.3%, of global final energy and is responsible for nearly 40% of global carbon emissions. Building energy efficiency harbours enormous potential as a major contributor to global carbon footprint reduction and urban sustainability. In this context, World Green Building Council announced the Net Zero Carbon Buildings Commitment of achieving net zero carbon operation for buildings under their control by 2030 and all buildings by 2050. Advances in building energy management […] Read more.

CO2 photo-reduction into fuels using TiO2 based photocatalysts
Mohd Hasmizam Razali
IEECP’21 Conference e-Proceedings

Abstract: Carbon dioxide (CO2) emission from fossil fuel utilization poses a potential thread to global climate. Recent development in CO2 reduction opens up new possibilities of utilization of CO2 as a carbon feedstock for fuel generation and commodity chemicals. In this research, TiO2-based photocatalysts have been extensively investigated for the CO2 photoreduction into hydrocarbons in aqueous solutions under environmental conditions to understand their reduction activity and selectivity. The physiochemical properties of the photocatalysts were […] Read more.

Decarbonization for the energy transition and green production
Talieh Rajabloo
IEECP’21 Conference e-Proceedings

Abstract: A considerable part of the fossil CO2 emissions comes from the energy sector, in which the main parts are released through energy-intensive industries, namely metal production, chemicals, and manufacturing. Hence, decarbonization of industries is considerably important beside the other sectors such as net zero buildings and transformation. The main concept of this speech will cover renewable energy/resources solutions after looking into potential classic decarbonization. First objective is about the upgrading of the existing processes, equipment […] Read more.

Computational Screening for New Generation Photovoltaic Materials
Julia Romanova
IEECP’21 Conference e-Proceedings

Abstract: The present study is devoted to singlet fission chromophores – a rare kind of molecules, which, upon excitation, may double the charge carriers in a solar cell, overcome the Shockley–Queisser limit and boost the development of new generation organic based solar cells. In order to find new potential singlet fission chromophores, we have developed computational screening procedure implementing quantum-chemical approaches, machine learning algorithms and chemometrics methods. The singlet fission propensity of the molecules is rated based on their […] Read more.

Energy and environment: important role of chemistry in meeting the new demand for sustainable solutions
Francesca Deganello
IEECP’21 Conference e-Proceedings

Abstract: Sustainability has been worldwide recognized as the only possible bridge to the future, and chemistry has to be rethought in this new perspective. Materials production through chemical methods needs to be designed through sustainable actions, from the choice of primary resources to the efficiency of the synthesis process, from the functional performance of the materials to their present and future impact in society, environment, and economy. Apparently, this is an unaffordable goal. This presentation will give a chemistry perspective on […] Read more.

Utilizing Metal Chelating Flavonols as Metal Ion Filter and Hydroxyl Detector in Aqueous System
Erum Jabeen
IEECP’21 Conference e-Proceedings

Abstract: Flavonols are the group of compounds with conjugated structure having at least one hydroxyl and one keto group on adjacent C on ring C of flavone within planner structure. This particular arrangement provides flavonols with excellent radical scavenging potencies metal chelating properties and DNA intercalating ability at the same time. Apart from determining the pharmaceutical benefits of flavonols, they can be explored for brilliant environmental applications such as ROS detectors and water purifiers. In the current study, we are exploring the typical pharmaceutical benefits for engineering selective electrochemical ROS detector and metal trapping filters for water purification. Three Hydroxy flavones […] Read more.

Study of Liquid Desiccant Air Conditioning Using Flat Plate Solar Collector
Geleta Fekadu Daba
IEECP’21 Conference e-Proceedings

Abstract: The present study deals with a liquid desiccant air conditioning system using a flat-plate solar collector. Initially, there is an investigation for the performance of a flat-plate solar collector using Al2O3–water nanofluid and pure water. Using nano fluids as heat transfer fluid instead of conventional fluid (water) improves heat transfer and thermal properties and also there is a remarkable effect on the collector efficiency. The experimental setup comprises of a flat plate collector of the aluminium absorber plate, a closed-loop working fluid system and measurement devices. The effect of various parameters like mass flow rate of fluid, collector inlet and outlet fluid temperature, solar radiation, and ambient temperature on the collector efficiency is investigated […] Read more.

Can there be a universal phase locked loop ?
Reyes Sánchez-Herrera, Gabriel Gómez, José M Andújar, Marco Márquez and Andrés Mejías
IEECP’21 Conference e-Proceedings

Abstract: This paper aims to highlight the drawbacks of the most common phase locked loop (PLL) circuits to operate as universal PLLs. The phase locked loop tracks the phase of an input signal. These devices are necessary in different disciplines for which the input signal conditions are very different. In fact, they are used in synchronization to the grid waveforms, in the communications applications as frequency modulation or amplitude modulation, and in the measurement of the motors speed, among others. For each […] Read more.

A low-budget mathematically scalable sensor solution to reduce energy consumption in buildings
Barrazueta Paccha Robinson Adrian and Castro Mendieta José Raúl
IEECP’21 Conference e-Proceedings

Abstract: Reducing the consumption of electrical equipment such as air conditioning and lighting in buildings is a challenge around the world. Sensor-based control systems supported by intelligent, adaptive mathematical algorithms can control electrical equipment optimally to save energy and maintain user satisfaction. The system combines PIR sensors, low-consumption temperature and lighting sensors that analyze the characteristics of the environment and allow efficient control decisions to be made in […] Read more.

Methodological basis for selecting experimental research for building materials
Tatiana Eremina and Fedor Portnov
IEECP’21 Conference e-Proceedings

Abstract: This paper for the first time proposes methodological frameworks built by generalizing empirical data on the mechanochemical characteristics of materials using interdisciplinary methods. This methodology optimizes research for any composite materials while maintaining targeted research methods and eliminating impractical and related experimental studies with reduced work costs and as a result of […] Read more.

Aggregation and Flexibility for Grids’ Operation: the EU Path Toward the Opening of the Ancillary Services Market to Distributed Energy Resources
Davide Falabretti, Francesco Gulotta and Dario Siface
IEECP’21 Conference e-Proceedings

Abstract: The present paper proposes an analysis of EU policies related to the enabling of the Distributed Energy Resources (DERs) participation into the Ancillary Service Market (ASM). Indeed, the rising of renewables and DERs penetration in the power system recently called for the enlargement of the pool of actors that can actively participate in the grid balancing. Therefore, Europe, through directives and guidelines, is gradually fostering the involvement of DERs into the ASM. […] Read more.

A pilot study on implementation of sustainable design and construction activities in highway development
Raja Rafidah Raja Bt Muhammad Rooshdi, Noor Akmal Adillah Bt Ismail and Shaza Rina Bt Sahamir
IEECP’21 Conference e-Proceedings

Abstract: The construction industry is one of the major contributors to the CO2 emission which cause environmental impacts on the earth’s climate. Malaysian government is committed in reducing the CO2 by 40% in 2020 and 45% by 2030 as compared to the levels in 2005. Hence, there is a need to reduce the impact on the environment. Currently, Malaysia had developed several assessment tools such MyGHI, pHJKR and Infrastar. However, the implementation was still in not too much. Therefore, the main objective of this paper is […] Read more.

New urbanstyle technology – modular green roof and wall system
Natalia Shushunova, Elena Korol and Piero Bevilacqua
IEECP’21 Conference e-Proceedings

Abstract: In this paper, we describe the most innovative environmental projects and modular green technology as a key element of our urban spaces and the lungs of the cities. The decision to completely eliminate carbon fuels and reduce environmental pollution, make urban style more sustainable and friendly to the environment is reflected in the use of modular design and technological solutions for the building facades and roofs. A comprehensive analysis of the presented […] Read more.

Modeling and simulation of a Web-of-Cells architecture using Matlab/Simulink
Mohamed Faradji, Toufi Madani Layadi, Colak Ilhami and Khaled Roubah
IEECP’21 Conference e-Proceedings

Abstract: Nowadays, the Web-Of-Cells (WOC) represents an alternative strategy for solving communication, generation and distribution problems in smart grids that integrate Hybrid Renewable Energy Sources (HRES). In this paper a simulation method of WOC architecture with a new voltage control model have been proposed. The proposed method is summarized in three main points: First modeling of the WOC taking into account the voltage control model has been developed. […] Read more.

Bio-hydrogenated diesel production from palm oil with process integration of hydrogen production and hydro-processing
Chaiwat Prapainainar, Suwimol Wongsakulphasatch, Suttichai Assabumrungrat and Paweena Prapainainar
IEECP’21 Conference e-Proceedings

Abstract: Bio-hydrogenated diesel (BHD) or green diesel is a second generation liquid fuel that can be synthesized through hydrodeoxygenation reaction of fat and its derivatives. It has been expected to replace petroleum diesel and biodiesel due to structure stability and low sulphur. Nevertheless, BHD production still has limitation on the ground of high price for hydrogen feed. Thus, this study report feasibility study of an integrated process of hydrogen production and hydro-processing. The integrated process used […] Read more.

Exploring the sustainability of cable lines in fire case
Tatiana Eremina, Dmitry Korolchenko
IEECP’21 Conference e-Proceedings

Abstract: This paper presents a statistical analysis of the fire hazard of cable lines. Basic properties of cable lines of different types in a fire are specified. Factors affecting the sustainability of cable lines in the event of a fire are identified. An assessment of the sustainability of cable lines in fire conditions in accordance with GOST IEC 60331-21-2011 and GOST IEC 60332-3-22-2011 was made. The results are used for provision of fire safety in buildings and facilities during their operation. […] Read more.

Carbene Based Materials for Organic Solar Cells
Gergana Kostadinova, Rumen Lyapchev, Joanna Stoycheva, Julia Romanova and Alia Tadjer
IEECP’21 Conference e-Proceedings

Abstract: Successful strategies for the modelling of singlet fission chromophores – highly efficient organic materials in solar cells, will be demonstrated on a series of theoretically designed NHC-carbene dimers. All compounds are synthetically feasible and thus suitable for practical application. They differ in topology, conformation, and type of substituents, which allows us, using quantum-chemical methods, to reveal the intimate correlation between structure and excited state properties. Several potential candidates for singlet […] Read more.

A comparative study of the thermal behavior of Li-ion batteries with different geometries,capacities,cathode materials
Khalid ZIAT, Hasna LOUAHLIA and Hamid GUALOUS
IEECP’21 Conference e-Proceedings

Abstract: Li-ion batteries are nowadays widely used in electric vehicles, portable devices and smart grids. They are commercialized in different geometries, capacities and serval technologies depending on users’ requirements. During operating time, heat is generated inside Li-ion batteries due to chemical reactions which causes temperature rise. Non-controllable thermal behavior of these batteries may lead to the deterioration of their performance and may also cause a thermal […] Read more.

Unlocking New Opportunities for the Photovoltaic Materials Market
Joanna Stoycheva, Alia Tadjer and Julia Romanova
IEECP’21 Conference e-Proceedings

Abstract: Singlet fission (SF) is a photophysical process, occurring in organic materials and having the potential to boost the solar cells’ efficiency. Our study aims at guiding the way for molecular design of compounds, capable of SF. Doping of quinoid structures with Se or/and N-atoms turns out to be a productive strategy for that. Through functionalization and pH modulation, we succeeded to establish rules that link the molecular characteristics to the SF proclivity. Quantum chemical calculations at an appropriate level of […] Read more.

Analyzing the Effect of Cleaning on Anti Reflecting Coating of PV Module
Sanjay, Rohit Bharwaj, Anil K Berwal
IEECP’21 Conference e-Proceedings

Abstract: Solar energy which is cheap and present in abundance in tropical and subtropical regions has been universally accepted as future source of energy and photovoltaic cells are considered as potential candidates to harness this energy. In the recent years, India being its proximity to equator has increased the installation of PV systems in a huge way because of the higher irradiation available in large part of the country. India has seasonal variations from extreme cold to scorching heat, sand & dust storms, fog and heavy […] Read more.

Interplay Bewteen Diradical Character and Stability in Singlet Fission Chromophores
Vaska Petakova, Joanna Stoycheva, Alia Tadjer and Julia Romanova
IEECP’21 Conference e-Proceedings

Abstract: It was recently demonstrated that molecules with low to intermediate diradical character are good candidates for singlet fission chromophores and are therefore promising for photovoltaics application. On the other hand, the diradical character can also be associated with low stability and high reactivity – undesired molecular features for practical utilization. Therefore, in order to reveal the relationship between diradical character – stability – singlet fission propensity, we have performed quantum-mechanical […] Read more.

Thermodynamic study of a membraneless electrochemical process for the hydrogen and oxygen high-pressure generation
Andrii Shevchenko, Nguyen Tien Khiem, Bui Dinh Tri and Anatolii Kotenko
IEECP’21 Conference e-Proceedings

Abstract: The article presents the results of the thermodynamic analysis of the electrochemical process of hydrogen and oxygen high-pressure generation. This process can improve the energy efficiency of the membraneless electrolysis method. The method is based on the use of a gas-absorbing electrode with a highly developed contact surface of the electrode material with the electrolyte. The electrochemical activity of the gas-absorbing electrode material (Fe(g)) is higher in its […] Read more.

Identification of wind energy deployment determinants: Fuzzy cognitive map-based method
Sara Ghaboulian Zare, M. Alipour, R. Parsaei Tabar and Mehdi Hafezi
IEECP’21 Conference e-Proceedings

Abstract: Wind energy is undoubtedly an essential generation source required to achieve a transformative renewable energy supply portfolio. However, long-term sustainable wind energy deployment faces various challenges due to various complex interconnected impediment factors. These inherent endogenous and exogenous uncertainties preclude obtaining an accurate future trend, which complicates the design of a good policy. This study seeks to critically identify all the involved parameters that […] Read more.

Research on Mud Loss Prevention and Control for Deep Wells with Complex Pressure System in Mingebrak Oilfield, Uzbekistan
Wanjun Li, Qi Liu, Huifeng Liu, Jun Yan, Yong Wang, Shujiu Feng, He Ba and Yue Xiao
IEECP’21 Conference e-Proceedings

Abstract: Reservoirs at Mingebrak Basin in Uzbekistan are characterized by big burial depth (5200-6500m), high temperature (150-200℃), high pressure (pressure coefficient 2.08-2.41), high salt content (220000mg/l), and high H2S content (5~6%) in the formation fluid. The Musgothic formation is especially complex because it contains different pressure systems. Leakage and blowout are easy to occur during well drilling and the average drilling period is 732 days. The data of […] Read more.

Optical-Electronic Matrix System for the monitoring of nocturnal migration of birds
Alexandra Sinelschikova, Mikhael Vorotkov and Victor Bulyuk
IEECP’21 Conference e-Proceedings

Abstract: This paper is dedicated to a new technique for advances in the study of the main parameters of flight and monitoring of nocturnal migration of birds. The Electronic-Optical Matrix System allows us to detect and record aerial targets in the night sky of a size greater than 5 cm and at an altitude of 100 to 1000 meters a.g.l. The principle design features are:- (1) An optical device for receiving images of flying targets on three high-sensitivity CCD matrices when illuminated by infrared light from searchlight beams […] Read more.

Study of CZTSSe based solar cells with different ETMs by SCAPS
Lhoussayne Et-taya ,Touria Ouslimane,Abdellah Benami
IEECP’21 Conference e-Proceedings

Abstract: Third-generation thin-film solar cells based on CZTSSe are highly promising because of their excellent optoelectrical properties, earth-abundant, and non-toxicity of its constituent elements. In this work, the performance of CZTSSe based solar cells with TiO2, CdS, and ZnSe as electron transporting materials (ETMs) was numerically investigated using the Solar Cell capacitance Simulator (SCAPS). The effect of the active layer’s thickness and electron affinity, different buffer layers and […] Read more.

Improving Energy Performance and Thermal Comfort for Heritage Buildings: A Case Study Murabaa Palace
Abobakr Al-Sakkaf, Sherif Mahmoud and Eslam Mohammed Abdelkader
IEECP’21 Conference e-Proceedings

Abstract: Heritage Buildings are significant of their historical and architecture added value, which require in deep and precise preliminary brainstorming when considering upgrade or retrofitting of these valuable buildings. This study opts to spotlight on some passive design architecture interventions to improve the thermal comfort and the required cooling energy for the building. The Murabaa Palace in Riyadh was selected as a case study. The design builder software was used to […] Read more.

Photocatalytic reduction of CO2 to methanol by Cu2O/TiO2 heterojunctions
S.-P. Cheng, L.-W. Wei, H.-P. Wang
IEECP’21 Conference e-Proceedings

Abstract: Conversion of CO2 to low-carbon fuels using solar energy is considered an economically attractive and environmental friend route. The development of novel catalysts and the use of solar energy via photocatalysis is the key to achieve the goal of chemically reducing CO2 under mild conditions. Thus, in this study, the novel Cu2O/TiO2 heterojunctions were used for CO2-to-low-carbon fuels. The p-n heterojunction is able to enhance the separation of photogenerated electron-hole pairs. By UV-vis diffuse […] Read more.

Photocatalytic Reduction of CO2-to-C1 by Dual Photoelectrode Reactor
H.-Y. Chang, L.-W. Wei, H.P. Wang
IEECP’21 Conference e-Proceedings

Abstract: Global warming has been proved to be caused by the excessive emissions of CO2 from the usage of fossil fuels. Therefore, promoting carbon mitigation strategies and energy transition are of increasing importance. Reduction of CO2 to C1 fuels by solar energy like artificial photosynthesis is thus environmentally attractive and close the carbon cycle. There are still major challenges such as low conversion efficiency and high recombination of electron-holes during photocatalytic reduction of CO2. We have developed novel […] Read more.

Examination of Nuclear and Renewables Potential in Malaysia
Pei Jia Pok, Man-Sung Yim
IEECP’21 Conference e-Proceedings

Abstract: Malaysia relies heavily on fossil fuels such as coal and natural gas as its main source for electricity generation. Decades of exploitation and usage of these materials had not only caused contamination and depletion but also contributed to the large amount of carbon dioxide emission in the country. In 2015, Malaysia has signed the Paris Agreement and vowed to achieve the reduction of carbon dioxide emission by 45% per GDP to the level of 2005 by 2030. Prior to the Fukushima accident that happened in 2011 […] Read more.

Electrokinetic Remediation of Arsenic in a Gold Tailing Studied by in situ EXAFS
C.Y. Peng, P.-A. Chen, P.-C. Chang, H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: The tailings of arsenic-containing gold ores have caused a serious environmental problem in the north of Taiwan. Electrokinetic remediation (EKR) is one of the feasible methods for in situ soil decontamination. Although EKR has been proven to be very feasible in laboratory- and bench-scale experiments and small-scale field tests, an understanding of the complex arsenic involved in the EKR is of great importance. Thus, the main objective of this work […] Read more.

Capacitive deionization of salt water using thin stainless steel and graphite collectors in the FdCDI process
C.-H. Wu, P.-A. Chen, P.-C. Chang, H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: While the global water resource is very limited, the rapid population growth and urbanization have caused an added demand for fresh water. The developing capacitive deionization (CDI) method has gained extensive attention mainly due to its high energy-efficiency, environmental friendly, and low cost for desalination. To improve the benefits of flow-electrode CDI (FCDI) and the simplicity of the traditional flow-by CDI methods, a novel fluidized CDI […] Read more.

Numerical simulation of highly-efficient lead free tin-based perovskite solar cell with Sb2S3 as novel hole transport layer
Most. Marzia Khatun, Sabrina Rahman, Adnan Hosen, Md. Nur Hossain Riyad, Adil Sunny, Sheikh Rashel Al Ahmed
IEECP’21 Conference e-Proceedings

Abstract: This work reports the performance enhancement of lead free perovskite solar cell (PSC) with Sb2S3 as a novel hole transport layer (HTL) numerically by using Solar Cell Capacitance Simulator in One Dimensional (SCAPS-1D). Three different HTLs such as Sb2S3, Spiro-OMeTAD, and CuI are introduced into the conventional CH3NH3SnI3-based solar cell configuration consisting of Al/FTO/WS2/CH3NH3SnI3/Sb2S3 or Spiro-OMeTAD or CuI/Ni. The photovoltaic performances of the lead free […] Read more.

Integration of vanadium redox battery with PV systems : Modeling and simulation of Vanadium Redox flow batteries based on MATLAB/Simulink
BABAY Mohamed-Amine, Mustapha ADAR and Mustapha Mabrouki
IEECP’21 Conference e-Proceedings

Abstract: Several models have been developed and they are now providing a good understanding of how VRB works. This knowledge is very important to evaluate its performance when applied in an electrical system. This article presents a new VRB model based an electrical equivalent model of VRFB, the effect of flow rate and pump power losses has been considered in modeling the VRFB. The VRFB is connected to a resistive variable load, for discharging and a system PV for charging. […] Read more.

Enhanced extraction of PAHs from fly ashes with variable dielectric-constant supercritical fluids
K.-A. Hsueh, Y.-C. Tsai , T.-E. Wu, I-H. Chen, Y.-J. Tuan, H.-P. Wang
IEECP’21 Conference e-Proceedings

Abstract: There is a lack of quality data on the levels of polycyclic aromatic hydrocarbons (PAHs) in incineration fly ashes primarily due to the conventional Soxhlet extraction fails by the recovery of PAHs during the process. To better understand the hindered PAH finger-print patterns in the fly ashes, extractions with supercritical fluids (SCFs) such as dichloromethane (SDCM) (Tc=333 K and Pc=248 bar), water (SCW) (Tc=673 K and Pc=240 bar), and CO2 (SCCO2) (Tc=333 K and Pc=248 bar) were studied. By adjusting the […] Read more.

Selective extraction of cobalt from spent lithium-ion batteries
Y.-C. Tsai, T.-E. Wu, I-H. Chen, Y.-J. Tuan, H.-P. Wang
IEECP’21 Conference e-Proceedings

Abstract: Lithium-ion battery (LIB) are widely used in electronic products and electric vehicles largely due to the advantages of low price, low memory effect, high power efficiency, and long life cycle. In recent years, an increasing amount of end-of-life LIBs are to be recycled. Extraction of spent LIB has been carried out for recycling of valuable metals such as cobalt. Environmental friendly organic acids such as citric acid was used to selectively extract cobalt. For a better understanding of the cobalt speciation during extraction, in […] Read more.

High-temperature desulfurization by ZnO/Raney CuO absorbents
T.-C. Wang, T.-E. Wu, Y.-C. Tsai, Y.-J. Tuan, and H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: Desulfurization of syngas containing H2S at high temperatures for integrated gasification combined cycle is gaining momentum as a commercially viable source of clean energy. Thus, a feasibility study for hot-gas (1% H2S) desulfurization by ZnO on skeletal Raney CuO (ZnO/R-CuO) absorbent was carried out. The degree of the hot-gas desulfurization by ZnO/R-CuO was 90.0% at 873 K and decrease to 46.5% as the temperature raised to 1073 K. The rate constant (k) for the desulfurization by ZnO/R-CuO at 873 K was […] Read more.

In situ EXAFS studies of photoelectrocatalytic reduction of gold and lanthanum ions recycled from E-wastes
T.-E. Wu, Y.-C. Tsai, Y.-J. Tuan, and H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: Recycling of rare precious metals (RPMs) from E-waste by traditional methods such as pyrometallurgy and hydrometallurgy are generally high energy consumption, cost, and risk of environmental pollution. In this study, fluid capacitive deionization (FdCDI) process was used to concentrate the RPMs from a wastewater. The solar-driven photoelectrocatalytic (PEC) reduction of RPM ions (such as Au3+ and La3+) to metals was investigated. Electrons jumped to an excited state by solar energy can be transferred to […] Read more.

In situ FTIR studies for photocatalytic reduction of CO2 by TiO2 nanotubes
H.-H. Chang, H.-Y. Chang, H.P. Wang
IEECP’21 Conference e-Proceedings

Abstract: A better understanding of CO2 adsorption on the one-dimensional TiO2 nanotube (TiNT) is of great importance for improving its photocatalytic reduction ability. In this work, adsorption and photocatalytic reduction of CO2 on the TiNT was studied by in situ FTIR. The IR absorbance features at 1303 and 1393 cm-1 are associated with carbonate species, e.g., bidentate carbonate on the TiNT. Complete desorption of CO2 from the TiNTs may occur at T>418 K. The in situ FTIR studies indicate bidentate carbonate and […] Read more.

Low-Cost DSSCs using FeNi3@C counter electrodes
C.-C. Chen, Y.-F. Liou, L.-W. Wei, H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: To reduce the cost of a dye-sensitized solar cell (DSSC), noble metal platinum (Pt) on the counter-electrode has been replaced with relatively cheap metals, i.e., photo-activity-designable bimetal core-shell nanoparticles. In present work, nickel and iron encapsulated within carbon-shell (FeNi3@C) nanoparticles were prepared by carbonization of Ni2+ and Fe3+-β-cyclodextrin at 673 K for the DSSC counter-electrode. By component fitted X-ray absorption near-edge structure (XANES) spectroscopy, metallic nickel (Ni) and iron (Fe (73%) and Fe3O4 (27%)) […] Read more.

Solar-driven H2O-to-H2O2 by NiP/BiOI-gC3N4 composites
Y.-F. Liou, L.-W. Wei, H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: Water splitting to hydrogen and oxygen through a four-electron transport route has been widely studied for hydrogen energy. Alternatively, H2O can photocatalytically yield H2 and H2O2 (2H2O → H2(g) + H2O2(aq)) through a two-electron reaction that is more kinetically feasible. The naturally separated H2O2 aqueous solution from gaseous H2 can be directly utilized in oxidation of organic pollutants in wastewater. In this work, NiP dispersed bismuth oxyiodide (BiOI) and graphite carbon nitride (gC3N4) composites […] Read more.

Photocatalytic reduction of CO2 to C1 fuels by (Ni/ZnO)@C nanoreactors
M.-L. Liu, L.-W. Wei, H.-P. Wang
IEECP’21 Conference e-Proceedings

Abstract: The (Ni/ZnO)@C core-shell nanoparticles were prepared by carbonization of Ni2+- and Zn2+-cyclodextrin complexes at 723 K for 2 h. ZnO and Ni encapsulated in carbon-shell were etched partially to form the (Ni/ZnO)@C yolk-shell nanoreactors for photocatalytic reduction of CO2 to C1 fuels. By XRD, it is clear that ZnO is the main zinc crystallite in the nanoreactors, and its nanoparticle size is between 10-20 nm. The TEM images of the nanoreactors indicate that Ni and ZnO having the nanosizes of 5-30 […] Read more.

Dechloriation of incineration fly ash by fluidized capacitive deionization for utilization
P.-C. Chang, P.-A. Chen, H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: Most of non-recyclable municipal solid wastes have been treated by incineration for energy recovery and stabilization. However, the fly ash (FA) discharged from air pollution control devices contains toxic metals and chlorides as well as leachable dioxins that make it considered as hazardous wastes. Chlorides in FA that was washed with water can be removed by electrosorption using the new fluidized capacitive deionization (FdCDI) method. Ions including Cl- in water can be stored in the electrical double layer (EDL) of […] Read more.

Liquefaction of scrap tires for recycling of fuel oils
H.-A. Lee, P.-C. Chang, P.-A. Chen, H. Paul Wang
IEECP’21 Conference e-Proceedings

Abstract: Scrap tires containing metal wires, fibers, carbon black, and poor thermal conducting rubbers, are far more difficult to be treated effectively. Million fuel oil equivalent are discarded every year through the disposal of scrap tires. Recycling of scrap tires is of increasing importance as incineration and landfilling becomes expensive, and the acceptance of these methods is decreasing. The feasibility for recycling of product oils, metal wires, and carbon black from liquefaction of scrap tires was thus investigated in the […] Read more.

Zero carbon footprint, mechanical intervention for potentially reducing forest fires and generating livelihood options in Western Himalaya
Kapil Kumar Joshi and Vinay Sharma
IEECP’21 Conference e-Proceedings

Abstract: This paper provides an appropriate technological intervention with a zero-carbon footprint operating model while converting a dangerous forest bio-residue into a usable commodity. In our study, the dangerous forest bio-residue consists of the dry and fallen pine needles of the trees that grow in the Western Himalayan region. The appropriate technological intervention is the evolution of a manually operated biomass briquetting machine, and the usable commodity is the bio-briquettes, which could be used as an […] Read more.

Optical Analysis for a Honeycomb Solar Receiver Using a Point-Focus Concentrator
N. Aracely Cisneros-Cárdenas, Rafael E. Cabanillas-López Chemical and Ricardo A. Pérez-Enciso Industrial
IEECP’21 Conference e-Proceedings

Abstract: In this work we present an optical analysis for three different hydraulic diameter honeycomb receivers used to elevate working fluid temperature using concentrated solar radiation provided by a point-focus solar concentrating system. The analysis was carried out in order to determine the amount of concentrated solar radiation received in the volumetric receiver as well as the radiation distribution inside of it, also to determine the length of it. The study which determines the location […] Read more.

Description of Colombian Electricity Pricing Derivatives
Sellamuthu Prabakaran
IEECP’21 Conference e-Proceedings

Abstract: Electricity markets are becoming a popular field of research amongst academics because of the lack of appropriate models for describing electricity price behavior and pricing derivatives instruments. Models for price dynamics must consider seasonality and spiky behavior of jumps which seem hard to model by standard jump process. Without good models for electricity price dynamics, it is difficult to think about good models for futures, forward, swaps, and option pricing. In this paper […] Read more.

Chibuisi C. Okorieimoh, Brian Norton and Michael Conlon
IEECP’21 Conference e-Proceedings

Abstract: Solar photovoltaic (PV) panels experience long-term performance degradation as compared to their initial performance, resulting in lower like-per-like efficiencies and performance ratios. Manufacturers of solar photovoltaic modules normally guarantee a lifespan of more than 20 years. To meet such commitments, it is important to monitor and mitigate PV module degradation during this period, as well as beyond, to recognize maintenance and repair needs. Solar PV modules degrade over time, becoming less effective […] Read more.

A Survey on Deep Learning in Big Data and its Applications
Zair Bouzidi, Mourad Amad & Abdelmalek Boudries
IEECP’21 Conference e-Proceedings

Abstract: Individuals can exchange real-time information thanks to the vast spread and reach of social networks. This active participation with the corporate data, as emails, documents, databases, business processor history, etc and content published on the Web, as age and contact details, reviews, comments, photos, images, videos, sounds, texts, famous cookies, or e-commerce transactions, exchanges on social networks, are very important. Data recovery from different sources can be a difficult task […] Read more.

Workability of Concrete Having Used Petrol Engine Oil and Banana Fibers
Blawal Hasan, Majid Ali
IEECP’21 Conference e-Proceedings

Abstract: The quality of work and strength factors are directly dependent upon the concrete’s property of workability. The objective of this study is to assess the workability of specimens having a 9.4% quantity of used petrol engine oil (UPEO) and varying the proportions (0.0%, 0.5%, 1.0%, 1.5%, 2.0%, and 2.5%) of banana fibers (BF). For this purpose, the slump cone test method is adopted to investigate workability. Proportions for the UPEO and BF are added by taking the mass of cement. The values of the slump of all admixed specimens are compared with normal plain concrete […] Read more.

Transforming Granite Wastes into High Performance Hybrid Polymer Composites for Environmental Sustainability and its Comparative Optimization using TOPSIS Technique
Aakash Sharma, Vikash Gautam, Amar Patnaik, MJ Pawar, Ashiwani Kumar, Vikas Kukshal
IEECP’21 Conference e-Proceedings

Abstract: This research work aims to examine the opportunity of re-exploiting granite wastes to get inventive vinyl ester based hybrid polymer composites. The foremost advantage of recycling the granite wastes is low cost and eco-friendly production. Granite wastes generated by stone processing units are generally dumped in open lands, which creates severe environmental complications causing soil, air and water pollution. Hence, the inculcation of such kind of industry wastes into the polymer fabrication process can […] Read more.