Article
Green & Sustainable Science & Technology
Arash E. Samani, Nezmin Kayedpour, Farjam Kayedpour, Jeroen D. M. De Kooning, Guillaume Crevecoeur, Lieven Vandevelde
Summary: This study develops a novel flexible operation strategy by coupling the chemical process with wind turbines to improve power system flexibility. Simulation results demonstrate the effectiveness and significance of the proposed approach in the ancillary market of a carbon dioxide-based chemical plant.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2023)
Article
Energy & Fuels
Xuepeng Cui, Yu Zhuang, Hongguang Dong, Jian Du
Summary: This study proposes a multi-criteria screening framework for carbon dioxide utilization technologies combined with process optimization and evaluation. The results show that ethanol, methanol, and ethylene carbonate are the most promising carbon dioxide utilization products in chemical processes. This research provides practical guidelines for the future development of sustainable carbon dioxide utilization technologies.
Article
Green & Sustainable Science & Technology
Anh Tuan Hoang, Van Viet Pham, Xuan Phuong Nguyen
Summary: Renewable energy plays a vital role in smart cities by reducing pollution and improving living environment quality. Designing energy systems based on clean and renewable standards is considered a sustainable solution for smart cities.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Shiwei Yu, Jiahui Liu, Shuangshuang Zhou
Summary: Low-carbon economic development and energy transition are interrelated, and synergistic development is crucial for achieving the dual carbon goals. Structure optimization can improve China's economy-energy synergy level and provide support for policy-making.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Yuan Zhou, Jiangjiang Wang, Fuxiang Dong, Yanbo Qin, Zherui Ma, Yanpeng Ma, Jianqiang Li
Summary: This paper proposes a novel operational strategy for CCHP systems by analyzing system flexibility and evaluating design and operational performance using a flexibility index. A multi-objective optimization model is constructed to improve the economic performance and flexibility of the system.
Article
Energy & Fuels
Ali Saleh Aziz, Mohammad Faridun Naim Tajuddin, Tekai Eddine Khalil Zidane, Chun-Lien Su, Ali Jawad Kadhim Alrubaie, Mohammed J. Alwazzan
Summary: The selection of an appropriate dispatch strategy is crucial in designing a hybrid energy system (HES) due to its significant impact on stability, reliability, environmental, and economic performance. This paper investigates the optimal design of an off-grid PV/diesel/battery HES for rural electrification in Iraq. A new dispatch strategy is developed with a 12-hour foresight using MATLAB Link module. The proposed strategy outperforms the default cycle charging (CC) strategy in terms of technical, economic, and environmental performance, with lower NPC, higher renewable fraction, and reduced CO2 emissions.
Article
Engineering, Electrical & Electronic
Avijit Karmakar, Pradip Kumar Sadhu, Soumya Das
Summary: The increasing demand for electricity has led to the growing importance of renewable energy sources such as tidal energy, wind energy, and solar energy. Among these, solar power stands out for its pollution-free nature and abundant solar radiation. Photovoltaic (PV) systems have become a leading choice due to their unique advantages. However, the cost of power generation is a significant concern, and existing research methods have proven to be ineffective. To address this issue, this research utilizes the Cognitive Marine Predators Algorithm (CMPA) to design a cost-effective PV power generation system. The design variables, constraints, PV modeling, and objective functions (cost function and power loss function) are all explained, and the CMPA is used to optimize the system.
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2023)
Article
Thermodynamics
Chongxin Huang, Shuai Fu, Minglei Hong, Song Deng
Summary: In this article, a new bi-level programming model is proposed to study the impact of cooperative cyber-physical attacks on the economy of a gas-electricity interconnected integrated energy system. The upper level focuses on the attacker's perspective, optimizing operational expenditure subject to attack resource constraints. The lower level pertains to the dispatcher's perspective, minimizing operation cost in the case of the system suffering from the attacks.
Article
Thermodynamics
Jingze Yang, Zhen Yang, Yuanyuan Duan
Summary: The study proposed a hybrid renewable energy system with the optimal combination obtained through a multi-objective optimization algorithm. It was found that the combination of CSP plant and PV plant is an effective way to improve power generation reliability. The recommendation is to use power cycle to supplement power shortages.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
Saeed Khojaste Effatpanah, Hamid Reza Rahbari, Mohammad H. Ahmadi, Ali Farzaneh
Summary: This study presents a novel zero-carbon cogeneration energy system based on a pressurized solid oxide fuel cell-gas turbine (SOFC/GT) with a carbon capture and storage (CCS) process. The system achieves the joint production of energy and matter with high energy and exergy efficiency.
Article
Engineering, Chemical
Zhihua Zhang, Jinfeng Bai, Shaojun Li, Yang Liu, Chao Li, Xiangyun Zhong, Yang Geng
Summary: This paper proposes a dynamic model management strategy based on adaptive surrogate selection to assist in solving optimization problems in coal gasification process. By selecting appropriate surrogate models, introducing local models, and considering unexplored samples, the optimization performance of the particle swarm optimization algorithm and the effective syngas yield of the coal gasification process can be significantly improved.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Economics
Hillard G. Huntington
Summary: Model evaluation is essential for effective communication with policymakers and policy-advising community. Over the past sixty years, energy modeling has become increasingly complex, posing challenges in using them for policy-making. Future evaluation collaborations should focus on improving the value of these studies for policymakers through enhancing user engagement, simplifying model complexity, and standardizing evaluation processes.
Article
Thermodynamics
Adel Merabet, Ahmed Al-Durra, Ehab F. El-Saadany
Summary: The paper introduces an improved energy management system to reduce energy costs and increase battery lifespan in a hybrid solar and wind microgrid. By analyzing different contribution factor profiles and implementing load shifting mechanism, the system shows superiority in reducing costs and improving battery degradation compared to conventional systems. Linear contribution factor and load shifting result in daily costs of $68.27 for energy and $0.81 for degradation, representing significant decreases compared to traditional systems.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Deepak Kumar, Tavishi Tewary
Summary: The world is currently focusing on achieving energy security and sustainable development through the utilization of cleaner energy resources. Hybrid energy systems have emerged as a promising source to augment existing energy infrastructure and reduce the impact of challenges posed by energy scarcities.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Editorial Material
Energy & Fuels
Christian Klemm, Frauke Wiese, Peter Vennemann
Summary: As local and regional energy systems become more complex, the computational resources required for optimizing these systems are increasing. This paper examines how computational requirements change with model complexity and which model-based approaches can reduce resource usage while maintaining acceptable model deviations. The results show that run-time and memory usage increase with model complexity, but various model adaption methods can significantly reduce these requirements with some trade-offs in model accuracy.
Article
Chemistry, Multidisciplinary
Hyunwoo Kim, Jiyong Kim, Wangyun Won
Summary: This study developed an integrative process for the co-production of FDCA and furfural as well as activated carbon and evaluated its economic feasibility and environmental sustainability. The proposed process reduces utility consumption and shows comparable economic and environmental performance to traditional processes.
Article
Thermodynamics
Wangyun Won, Jiyong Kim, Thai Ngan Do, Young Gul Hur, Ha Eun Jeong, Jin Woo Chung
Summary: This study aims to develop novel Gas-to-Liquid (GTL) processes for gasoline-equivalent products and compare them with other well-known GTL technological routes. The research overcame challenges in ensuring optimal feed for DME synthesis by exploring different combinations of methane reforming and syngas conditioning processes. The combined steam and CO2 reforming (CSCR) showed superior performance in DTG, with good economic and environmental benefits.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Changsu Kim, Jiyong Kim
Summary: In this study, four different ANNs were used for predicting the performance of Pt-based catalysts in water gas shift reaction, with the multilayer perceptron model showing the best performance. It was demonstrated how selecting the optimal ANN structure can improve prediction accuracy and reduce computational load.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Changsu Kim, Jiyong Kim
Summary: In this study, a machine learning-based approach was developed to predict the performance of Pt/CexZr1-xO2 catalysts in water-gas shift reaction (WGSR). The study identified the key properties of the support material, such as reducibility and thermal stability, that determine the catalyst performance.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Min-Young Oh, Gyuhyung Jin, Bomsock Lee, Jiyong Kim, Wangyun Won
Summary: An integrated process using separation and catalytic conversion technology was designed to co-produce adipic acid (ADA) and 1,4-pentanediol (1,4-PDO) from corn stover, as an effort to replace fossil-based feedstocks and mitigate environmental impacts. The process reduces energy consumption and has economic stability against variable market conditions, making it economically and environmentally feasible.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Green & Sustainable Science & Technology
Lohit Kumar Srinivas Gujjala, Jiyong Kim, Wangyun Won
Summary: The present manuscript reviews the suitability of technical lignin's for synthesizing hydrogels and discusses their current applications, challenges, and future directions. Different types of technical lignin's have unique functional groups that contribute to their varying roles in hydrogel synthesis. Various synthesis techniques, including physical, chemical, and biological processes, have been reviewed. Lignin hydrogels have found applications in the biomedical, agriculture, environment, and electronics sectors.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Hweeung Kwon, Thai Ngan Do, Jiyong Kim
Summary: This study proposes a new decision-supporting platform for the overall supply chain management of petrochemical industries to maximize business profits. The platform integrates various decision and featuring models to address critical challenges both vertically and horizontally. Implementing paper trade optimization, optimal operating conditions combined with price forecasting, and overall supply chain optimization can significantly improve business profit.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Changsu Kim, Wangyun Won, Jiyong Kim
Summary: The goal of this research is to develop a new methodology for process modeling, designing, and evaluating hydrogen production based on the water-gas shift reaction using machine learning. The approach uses an ML model to predict catalyst performance and assess the economics of the catalytic conversion process. It can simulate hydrogen production processes without kinetics and identify optimal operating conditions and catalyst structures for energy-efficient hydrogen production from an industrial perspective.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Hweeung Kwon, Thai Ngan Do, Wangyun Won, Jiyong Kim
Summary: This study presents a new optimization-based framework for the optimal operation of the naphtha cracking process under uncertain market conditions. It includes a product price prediction model and a naphtha cracking model, aiming to maximize operating profit. Based on price prediction and unit operation conditions, the optimization model determines the major operation conditions of the naphtha cracking process and improves annual profit.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Computer Science, Interdisciplinary Applications
Thai Ngan Do, Chanhee You, Hegwon Chung, Jiyong Kim
Summary: In this study, an optimization-based framework was developed to determine the optimal strategies for CO2-to-fuel production. The results suggest that direct catalytic hydrogenation is the most economical and environmentally friendly pathway for MeOH, gasoline, and DME, while FT fuels are not recommended.
COMPUTERS & CHEMICAL ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Seo-Young Park, Sun-Jong Kim, Cheol-Hwan Park, Jiyong Kim, Dong-Yup Lee
Summary: Recent advances in process analytical technology and artificial intelligence have made it possible to generate large culture data sets from biomanufacturing processes. Exploiting these data sets is crucial for improving the reliability and efficiency of RTP-producing culture processes and reducing potential faults.
BIOTECHNOLOGY AND BIOENGINEERING
(2023)
Article
Thermodynamics
Thai Ngan Do, Hweeung Kwon, Minseong Park, Changsu Kim, Yong Tae Kim, Jiyong Kim
Summary: This study proposes a carbon-neutral hydrogen production process from natural gas using electrified steam methane reforming (e-SMR) with renewable electricity. Compared to conventional fired-heating steam methane reforming (f-SMR), e-SMR consumes less natural gas, has a higher energy efficiency of 78.7%, lower net CO2eq emissions, and captures CO2. However, it has a higher unit production cost of $3.49/kg H2. Overall, the study highlights the potential and economic viability of e-SMR. Rating: 8/10
ENERGY CONVERSION AND MANAGEMENT
(2023)
Review
Chemistry, Physical
Seonho Lee, Yong Tae Kim, Kun-Yi Andrew Lin, Jechan Lee
Summary: Tremendous amounts of plastic waste generated daily poses serious global environmental issues. Pyrolysis offers a sustainable solution by converting plastic waste into carbonaceous materials, such as char, which can be used as additives in epoxy composites to enhance their properties. This review discusses the potential of plastic-waste-derived additives for epoxy composites and highlights the versatility of plastic-waste-derived char materials in various industries.
Article
Energy & Fuels
Seolhee Cho, Thai Ngan Do, Jiyong Kim
Summary: This study proposes two advanced processes for methanol production using waste CO2 and renewable H-2 as feedstock, and compares their technical, economic, and environmental performances with conventional processes.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Thai Ngan Do, Young Gul Hur, Hegwon Chung, Jiyong Kim
Summary: This study aims to develop and evaluate the techno-economic-environmental performance of residue gas-to-gasoline hydrocarbon processes (rGTL) via the dimethyl ether-to-gasoline (DTG) route for various feedstocks. It compares different strategies and routes of gasoline synthesis, and identifies the DTG route as the best technological route for residue gas-based gasoline. The study also investigates the industrial and social impact of rGTL and suggests that implementing rGTL can contribute to sustainable development goals in different countries.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)
