Article
Thermodynamics
Hossein Akhlaghi Garmejani, Siamak Hossainpour
Summary: This study focuses on the optimization design of an automotive exhaust thermoelectric power generation system, analyzing the system performance through numerical algorithms and calculating key objective functions. It is found that multi-objective optimization methods can achieve good results in reducing investment while improving efficiency.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Engineering, Chemical
Sang Hyun Lee, Kyungtae Park
Summary: A novel desalination process using LNG cold energy to cogenerate pure water and electricity is proposed to tackle global water scarcity. Cost analysis reveals optimized specific energy consumption and low product cost, with a comparison made to a low capital expenditure desalination process. Sensitivity analysis shows the impact of plant capacity, electricity cost, and temperature on product cost and specific energy consumption.
Article
Green & Sustainable Science & Technology
Mina Safari, Ali Sohani, Hoseyn Sayyaadi
Summary: This study investigates the impact of taking the water-energy foot-print into account on the optimization of a tri-generation system. The results show that adding the water foot-print as an objective function significantly improves the key performance criteria of the system, leading to a better operational strategy.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Nanoscience & Nanotechnology
Bahador Abolpour, Ramtin Hekmatkhah, Rahim Shamsoddini
Summary: This study investigates the optimal design of a two-dimensional Tesla-shaped micromixer for high mixing index and low-pressure drop. The genetic algorithm is used to obtain the optimum structural design, and image processing is used to identify the micromixer edges and generate a mesh configuration. The governing equations of laminar fluid flow and concentration are discretized and solved using the finite volume method. The best design is achieved by rotating the central obstacles of the Tesla micromixer, resulting in a lower mixing cost and better performance than the original design.
MICROFLUIDICS AND NANOFLUIDICS
(2022)
Article
Computer Science, Interdisciplinary Applications
Miguel E. Vazquez-Mendez, Gerardo Casal, Alberte Castro, Duarte Santamarina
Summary: This work focuses on the design of horizontal alignments and global optimization method, including random generation of admissible horizontal alignments and optimal design of layouts connecting given points. The approach demonstrates good practicality in applications such as robotics, pipe layout design, and forest road design.
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
(2021)
Article
Engineering, Chemical
Jacob N. Easley, Samer Talozi, Amos G. Winter
Summary: This paper introduces photovoltaic-powered electrodialysis reversal (PV-EDR) as a promising desalination technology for agricultural applications in the Middle East and North Africa (MENA). It addresses the issue of water scarcity and the reliance on brackish water for irrigation in MENA, which leads to decreased crop yield and soil degradation. PV-EDR is chosen as an improved desalination architecture to reduce energy costs compared to current on-grid reverse osmosis (RO) systems. The paper presents a novel time-variant (TV) operational approach for continuous solar-powered desalination without the need for batteries.
Article
Thermodynamics
Parisa Kazemiani-Najafabadi, Ehsan Amiri Rad, Carey James Simonson
Summary: This paper presents a novel ammonia-water cogeneration system driven by waste heat recovery, which can simultaneously generate cooling and power. By adjusting the maximum pressure and ammonia concentration, the ratio between net power and cooling capacity can be optimized, and the system can be further optimized using a genetic algorithm.
Article
Thermodynamics
Ramin Ghasemiasl, Mohammad Amin Javadi, Morteza Nezamabadi, Mohsen Sharifpur
Summary: The research examined the optimal operation of a combined cycle power plant that generates water and electricity using parabolic solar collectors. Results showed that increasing desalination effects led to higher electricity generation costs and increased interest rates for freshwater production. This optimization improved exergy efficiency by 1.74%.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Multidisciplinary Sciences
Mostafa Rastegaran, Seyed Bahram Beheshti Aval, Ehsan Noroozinejad Farsangi, Ishagh Faryabi
Summary: This paper presents a novel genetic algorithm variant called the Oriented Genetic Algorithm (OGA) for optimal seismic design of steel special moment resisting frames. By utilizing violation values of design constraints to direct the search procedure, OGA significantly reduces the computational burden required to obtain optimal solutions. The convergence history of OGA is shown to outperform that of Particle Swarm Optimization and Ant Colony Optimization algorithms for a specified limit of function evaluations.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
N. Ding, K. Prasad, T. T. Lie
Summary: This paper introduces a hybrid EMS system for PHEV, using a rule-based control strategy and genetic algorithm optimization technique to overcome battery limitations. Simulation studies have shown significant improvements in emissions control with the proposed system.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Chemical
Fahad M. Al-Fadhli, Nawaf S. Alhajeri, Ratnamala Sholapurmath, Hisham Ettouney, Debalina Sengupta, Mark Holtzapple, Mahmoud M. El-Halwagi
Summary: This study aims to minimize the total annual cost for desalination facilities powered by thermal power plants, photovoltaic arrays, and battery storage. An optimization model is applied to a case study on desalination power plants in Kuwait, considering economic and environmental factors as well as seasonal variations.
Article
Engineering, Mechanical
Erick Garcia Lopez, Wen Yu, Xiaoou Li
Summary: This paper discusses the advantages and disadvantages of parallel robots over serial robots, and presents a method using neural networks and genetic algorithm in parallel robot design to solve the problems of workspace and forward kinematics successfully. The proposed design method optimizes the workspace volume of the robot, and has been applied to the Stewart platform with success.
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Sang Hyun Lee, Ju Dong Lee, Dong-Ha Lim, Kyungtae Park
Summary: This study proposes a sustainable hybrid desalination process using LNG cold energy to address water shortages and energy crises. The dual-expander ORC-HBD process with a RO system can co-generate electricity and pure water by utilizing LNG cold energy and pressure energy simultaneously. Computational modeling and optimization analysis show that using propane can generate profits of up to 0.521 $/ton of pure water, which could increase to 3.095 $/ton of pure water with free external heat, making it superior to many RO technologies in terms of energy, exergy, and economics.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Review
Energy & Fuels
Ali Akbar Salehi, Mohammad Ghannadi-Maragheh, Meisam Torab-Mostaedi, Rezvan Torkaman, Mehdi Asadollahzadeh
Summary: Energy supply is a critical demand for countries worldwide. Sustainable energy sources can improve energy efficiency, flexibility, and reduce environmental impacts. Nuclear energy plays a significant role in industries, with various nuclear reactors providing combined heat and power at different operating temperatures.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Computer Science, Artificial Intelligence
Payam Ashtari, Roghaye Karami, Salar Farahmand-Tabar
Summary: A new method of fuzzy genetic algorithm based on bilinear membership functions is proposed for finding the optimal geometrical patterns and overall structural weight of tall buildings with a diagrid system. Results show that increasing the dimension of the structure can reduce structural weight, while also increasing the angle of the diagrid members. The accelerated fuzzy-genetic algorithm proves to be advantageous in terms of convergence and avoiding local minimum traps.
APPLIED SOFT COMPUTING
(2021)
Article
Engineering, Chemical
Arvin Sohrabi, Mousa Meratizaman, Shuli Liu
Summary: This paper simulates and discusses possible solutions to improve the economic and technical performances of a battery-less renewable energy-powered BWRO system under real climate conditions. The study finds that the photovoltaic-based system performs better in terms of specific energy consumption and unused energy ratio.
Article
Engineering, Chemical
Chunlan Pan, Xiaoyin Hu, Vishal Goyal, Theyab R. Alsenani, Salem Alkhalaf, Tamim Alkhalifah, Fahad Alturise, Hamad Almujibah, H. Elhosiny Ali
Summary: This paper introduces a novel waste heat recovery method using the hot flue gas from a ship's engine to produce liquefied hydrogen while meeting the ship's air-conditioning requirement. A comprehensive feasibility assessment is conducted and an artificial neural network with a multiobjective grey wolf optimization method is used for optimization. The findings indicate the highest mean sensitivity index of the flash temperature and the best optimization scenario for exergy efficiency, CO2 emission reduction, and liquefied hydrogen cost.
Article
Engineering, Chemical
Daniele Chinello, Jan Post, Louis C. P. M. de Smet
Summary: In this study, PVDF-based anion-exchange membranes were designed to selectively separate nitrate from chloride. Experimental data showed that increasing the concentration of PVDF enhanced nitrate transport but also increased the membrane electrical resistance. The selectivity of nitrate was found to be independent of the membrane thickness and mainly driven by the increased affinity between the anion and the membrane.
Article
Engineering, Chemical
Umar Noor, Muhammad Fayyaz Farid, Ammara Sharif, Amna Saleem, Zubair Nabi, Muhammad Furqan Mughal, Kiran Abbas, Toheed Ahmed
Summary: Global water scarcity is increasing, and water desalination is an important solution. Multifunctional advanced materials, such as membrane materials and solar-driven desalination, play a crucial role in water desalination. Additionally, these materials can be used for water purification, wastewater treatment, and pollutant elimination.
Article
Engineering, Chemical
Emrah Gumus
Summary: With growing global concerns about climate change and environmental impacts, the use of nuclear energy in naval vessels offers a cleaner and more efficient solution to reduce emissions and address water and energy supply challenges. This study explores a novel system that combines a nuclear-driven supercritical carbon dioxide power cycle with reverse osmosis cogeneration to meet the water and electricity demands in maritime operations, enhancing the sustainability, efficiency, and self-sufficiency of naval vessels. The results indicate that the system has the potential to be a viable and effective solution for naval operations.
Article
Engineering, Chemical
Dao Thi Thanh Huyen, Saikat Sinha Ray, Young -Nam Kwon
Summary: This study focuses on the modification of a commercially available polyamide thin-film composite membrane with a zwitterionic material to enhance its fouling resistance. The modified membrane shows improved salt rejection and reduced permeability compared to the pristine membrane. Fouling tests demonstrate that the modified membrane has a lower fouling ratio and higher recovery ratio. The enhanced antifouling characteristics are attributed to the improved hydrophilicity resulting from the zwitterionic brushes and the salting-in effect.
Article
Engineering, Chemical
Niklas Koeller, Lukas Mankertz, Selina Finger, Christian J. Linnartz, Matthias Wessling
Summary: This study presents a methodology to scale up Flow-electrode Capacitive Deionization (FCDI) technology from lab-scale to pilot-scale systems. By increasing membrane area and using a stacking approach, the FCDI modules were successfully scaled up and achieved a salt transfer rate comparable to lab-scale systems. This provides a foundation for future assessments of energy demand and economics.
Article
Engineering, Chemical
Mona Gulied, Sifani Zavahir, Tasneem Elmakki, Hyunwoong Park, Guillermo Hijos Gago, Ho Kyong Shon, Dong Suk Han
Summary: This study introduces a novel hybrid system that combines direct contact membrane distillation (DCMD) and electrically switched ion exchange (ESIX) to facilitate seawater reverse osmosis (SWRO) brine enrichment and selective lithium recovery.
Article
Engineering, Chemical
Zhiqiang Zhang, Ruifeng Deng, Jiao Zhang, Lu She, Guangfeng Wei, Renyong Jia, Pengyu Xiang, Siqing Xia
Summary: A transmembrane electro-chemisorption system with authigenic acid and base was developed for enhancing ammonia recovery from strong ammonia wastewater. The system efficiently transformed ammonium into free ammonia, which was then adsorbed and recovered through transmembrane chemisorption. This system yielded pure (NH4)2SO4 product and produced valuable byproducts of pure hydrogen and oxygen. Higher applied voltage resulted in better ammonia recovery.
Article
Engineering, Chemical
Alena Popova, Sandrine Boivin, Takuji Shintani, Takahiro Fujioka
Summary: This study aimed to produce a high-integrity RO membrane by forming a polyamide skin layer on a TE support layer, in order to enhance the integrity of the membrane and improve the microbiological safety of potable water reuse.
Article
Engineering, Chemical
Sanjana Yagnambhatt, Saber Khanmohammadi, Jonathan Maisonneuve
Summary: This study investigates the concept of using heat to enhance reverse osmosis (RO) desalination. The effect of temperature on water permeate flux, specific energy, permeate quality, and applied operating pressures is evaluated using an analytical model. The results suggest that under specific conditions, the tradeoff between savings in mechanical pump work and thermal energy input in thermally-enhanced RO can be favorable, leading to overall energy savings.
Article
Engineering, Chemical
Jiangju Si, Chenrui Xue, Shun Li, Linchao Yang, Weiwei Li, Jie Yang, Jihong Lan, Ningbo Sun
Summary: To meet the huge demand for lithium resources, there is an urgent need to develop a new efficient technology for lithium recovery from salt-lake brines. In this study, a selective membrane capacitive deionization system is reported, which achieves high lithium recovery capacity and rate through the use of materials with efficient intercalated pseudo-capacitance and a high specific area porous carbon. The use of a modified thin-coated membrane allows for selective Li+ recovery, and adjusting the concentrations of Li+ and Mg2+ in the feed solution enables higher Li+/Mg2+ selectivity.
Article
Engineering, Chemical
Mohamed R. Salem, R. Y. Sakr, Ghazy M. R. Assassa, Omar A. Aly
Summary: This research proposes a new method of using wasted thermal energies as an additional heating source for solar still distillation units (SSDUs) to increase productivity and reduce pollution and global warming. By testing two SSDUs, the study shows that heating airflow can raise temperatures, enhance freshwater production, and improve system thermal efficiency.
Article
Engineering, Chemical
Qimeng Sun, Miao Sun, Linyan Yang, Yuan Gao, Xinghai Zhou, Lihua Lyu, Chunyan Wei
Summary: This study presents an innovative design and fabrication of a fabric-based conical roll (FCR) evaporator, which enables low-temperature evaporation and achieves high evaporation efficiency with excellent thermal management ability. The evaporator has demonstrated advanced light-harvesting capability and can produce freshwater that meets drinking water standards, showing great potential for applications in desalination and sewage treatment.
Article
Engineering, Chemical
Yidong Zhang, Wangfang Deng, Meiyan Wu, Chao Liu, Guang Yu, Qiu Cui, Pedram Fatehi, Chunlin Xu, Bin Li
Summary: In this study, a novel polydopamine-functionalized lignin-containing pulp foam evaporator with high-efficiency desalination and multi-contaminant adsorption capabilities was designed. The foam evaporator showed excellent light absorption, water absorption, thermal conductivity, and chelation abilities, allowing for solar evaporation and contaminant adsorption synergistically. It also exhibited potential applications in metal ion concentration and contaminated seawater treatments, and demonstrated superior biodegradability compared to poly-styrene foam. This foam material holds promise for developing multifunctional photo-thermal systems for solar-driven water purification.