Article
Thermodynamics
Changxi Zhao, Jingchun Huang, Die Xie, Yu Qiao, Minghou Xu
Summary: This study simulated a process of hydrogen production from food waste by torrefaction integrated with steam gasification, and conducted a comprehensive evaluation between torrefaction and direct gasification. The results showed that torrefaction integrated with steam gasification had higher energy efficiency, economic potential, and commercial potential for large-scale hydrogen production.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Energy & Fuels
Muflih A. Adnan, Mohammad M. Hossain, Md Golam Kibria
Summary: Municipal solid waste (MSW) can be a potential sustainable energy source. Research has shown that gasification can effectively convert waste into electricity and chemical products.
Review
Chemistry, Multidisciplinary
Rajendran Nandhini, Don Berslin, Baskaran Sivaprakash, Natarajan Rajamohan, Dai-Viet N. Vo
Summary: The rising global population is leading to an increase in municipal waste, causing issues of rising cost and environmental pollution. Therefore, alternative treatments like waste-to-energy should be developed. Thermochemical methods can convert municipal solid waste into energy, with energy yield depending on operating conditions and feedstock composition. Integrating multiple thermochemical treatments is gaining momentum due to higher energy yield.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Thermodynamics
Beibei Yan, Liguo Jiao, Jian Li, Xiaochao Zhu, Sarwaich Ahmed, Guanyi Chen
Summary: This study compared the effectiveness of microwave torrefaction (MT) and conventional torrefaction (CT) on herb residue (HR), showing that MT is more efficient in removing bound water and generating gases. Moisture content was identified as the key factor affecting torrefaction and energy consumption, while MT-HR exhibited superior gasification performance.
Review
Agricultural Engineering
Zheli Ding, Yu Ge, Sarath C. Gowd, Ekta Singh, Vinay Kumar, Deepshi Chaurasia, Vikas Kumar, Karthik Rajendran, Preeti Chaturvedi Bhargava, Peicong Wu, Fei Lin, Sharareh Harirchi, Veeramuthu Ashok Kumar, Ranjna Sirohi, Raveendran Sindhu, Parameswaran Binod, Mohammad J. Taherzadeh, Mukesh Kumar Awasthi
Summary: Environmental contamination due to urbanization and industrialization is a significant concern. The scientific community is exploring sustainable and eco-friendly solutions, including the use of biochar. This review examines the potential of using fruit wastes, specifically tropical fruit tree residues, for producing efficient biochar materials. It discusses various aspects of biochar production and its applications in areas such as wastewater treatment, catalysts, and carbon sequestration.
BIORESOURCE TECHNOLOGY
(2023)
Review
Agricultural Engineering
Elfina Azwar, Wan Adibah Wan Mahari, Hajar Rastegari, Meisam Tabatabaei, Wanxi Peng, Yiu Fai Tsang, Young-Kwon Park, Wei-Hsin Chen, Su Shiung Lam
Summary: This article reviews the potential and application of various aquatic weeds for generation of biofuels using recent thermochemical technologies. Pyrolysis is identified as a promising thermochemical technology for aquatic weed conversion. The perspectives, challenges, and future directions in thermochemical conversion of aquatic weeds to biofuels were also discussed.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Rahul Jain, Sanjeev Mishra, Kaustubha Mohanty
Summary: This study aimed to cultivate Chlorella thermophile by integrating cattle wastewater and domestic sewage wastewater, in order to address the challenge of expensive chemical fertilizers and large freshwater requirements. Through the analysis of nutrient consumption patterns in batch and fed-batch cultivation conditions, it was found that 2.5% cattle wastewater resulted in the highest biomass yield. Fed-batch cultivation showed a twofold increase in biomass yield compared to batch cultivation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Thermodynamics
Nabila Aprianti, Muhammad Faizal, Muhammad Said, Subriyer Nasir, Ahmad Fudholi
Summary: Understanding the kinetics and thermodynamics of fine coal gasification is crucial for improving design and optimizing clean energy production. Thermogravimetric analysis was performed to determine the activation energy and thermodynamic parameters. The gasification process followed second-order reaction kinetics and was endothermic. This analysis provides valuable guidance for optimizing the fine coal gasification process.
Article
Energy & Fuels
L. Fajimi, J. Chrisostomou, B. O. Oboirien
Summary: This study investigates a comprehensive process for the production of methanol and electricity from bagasse and finds that the process involving torrefaction has higher syngas yield and lower heating values. The economic evaluation shows that the scenario of co-production of methanol and electricity is the most economically viable production route.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Thermodynamics
Regina Francielle Silva Paulino, Alexei Mikhailovich Essiptchouk, Lucas Pamplona Cardozo Costa, Jose Luz Silveira
Summary: This study investigates the thermodynamic characteristics of biomedical waste generated in Brazil through plasma gasification simulation. It determines the optimal operating point and estimates the required electrical power and the potential for electricity generation.
Article
Engineering, Environmental
Jinhao Zheng, Lei Liao, Rui Liu, Chongcong Li, Yan Zhang
Summary: This study explored a promising approach to co-manage torrefaction condensates (TCs) and carbon-rich fly ash (FA), finding that the blending of FA and TC improved CO2 gasification reactivity and combustion performance of the resulting mixtures.
Article
Thermodynamics
Qing He, Abdul Raheem, Lu Ding, Jianliang Xu, Chen Cheng, Guangsuo Yu
Summary: This study found that wet torrefaction had a greater impact on softwood biochar than hardwood biochar, with the critical wet torrefaction temperature determining changes in reactivity and kinetic parameters. Wet torrefaction affected both the inorganic and organic components in biochar, leading to the removal of certain components in both types of biochar.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Green & Sustainable Science & Technology
N. T. Sibiya, B. Oboirien, A. Lanzini, M. Gandiglio, D. Ferrero, D. Papurello, S. O. Bada
Summary: Wet torrefaction showed significant improvement in gasification properties of grass biomass with higher reactivity index and lower activation energy, likely due to the enhancement of pore structure and pore volume in the treated biomass.
Article
Agricultural Engineering
Jean Felipe Leal Silva, Pedro Y. S. Nakasu, Aline C. da Costa, Rubens Maciel Filho, Sarita C. Rabelo
Summary: This study presents a techno-economic analysis of pretreating sugarcane bagasse using the protic ionic liquid [MEA][OAc] and considering different washing methods. The results show that the best scenario resulted in a 33% increase in ethanol yield, along with an increase in wastewater and vinasse production.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Energy & Fuels
Abdulwahab A. Alnaqi, Jalal Alsarraf, Abdullah A. A. A. Al-Rashed
Summary: Biofuels are becoming more popular due to their environmental benefits and applications. This research compares two biofuel-driven systems for hydrogen and electricity generation. The systems use biomass digestion or gasification, and the thermoeconomic investigation considers efficiency, cost, and environmental impact. Sensitivity analysis is conducted to study the influence of design factors, and triple-objective optimization is used to determine the best operational strategy.
Article
Energy & Fuels
Hafthor Aegir Sigurjonsson, Lasse R. Clausen
Article
Thermodynamics
Tuong-Van Nguyen, Lasse Rongaard Clausen
ENERGY CONVERSION AND MANAGEMENT
(2018)
Article
Thermodynamics
Giacomo Butera, Soren Hojgaard Jensen, Lasse Rongaard Clausen
Article
Thermodynamics
Rasmus Ostergaard Gadsboll, Lasse Rongaard Clausen, Tobias Pape Thomsen, Jesper Ahrenfeldt, Ulrik Birk Henriksen
Article
Thermodynamics
Tuong-Van Nguyen, Lasse Rongaard Clausen
ENERGY CONVERSION AND MANAGEMENT
(2019)
Article
Thermodynamics
Lasse R. Clausen, Giacomo Butera, Soren Hl Jgaard Jensen
Article
Energy & Fuels
S. H. Jensen, H. Langnickel, N. Hintzen, M. Chen, X. Sun, A. Hauch, G. Butera, L. R. Clausen
JOURNAL OF ENERGY STORAGE
(2019)
Article
Thermodynamics
Lasse R. Clausen, Giacomo Butera, Soren Hojgaard Jensen
Article
Thermodynamics
Giacomo Butera, Rasmus Ostergaard Gadsboll, Giulia Ravenni, Jesper Ahrenfeldt, Ulrik Birk Henriksen, Lasse Rongaard Clausen
Article
Energy & Fuels
Giacomo Butera, Soren Hojgaard Jensen, Rasmus Ostergaard Gadsboll, Jesper Ahrenfeldt, Lasse Rongaard Clausen
Article
Thermodynamics
Giacomo Butera, Sebastian Fendt, Soren H. Jensen, Jesper Ahrenfeldt, Lasse R. Clausen
Article
Chemistry, Applied
Giacomo Butera, Soren H. Jensen, Jesper Ahrenfeldt, Lasse R. Clausen
Summary: Comparison between a novel flexible methanol production unit and two non-flexible units shows that although the flexible solution has a higher capital cost, it ensures a higher capacity factor, potentially giving it a competitive advantage. The study reveals that flexibility becomes relevant when constraints are imposed on the use of electricity from fossil fuels to produce methanol, leading to higher capacity factor and methanol yield.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Thermodynamics
Rene Kofler, Lasse Rongaard Clausen
Summary: This study presents the production of DME from wheat straw through gasification, optimizing the process by using two-stage DME synthesis, partial oxidation of the produced gas, and hydrogen quench for high-temperature reverse water gas shift reactions. A systematic analysis of 14 different plant layouts was conducted to investigate the influence of different process steps on carbon efficiency and energy efficiency. The analysis showed that all introduced measures increased carbon efficiency, but also increased net electricity consumption. The highest energy efficiency reached was 57.5%, while the highest carbon efficiency was achieved with the highest net electricity consumption.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Hua Liu, Lasse Rongaard Clausen, Ligang Wang, Ming Chen
Summary: This study investigates the heat balance and degradation process of solid oxide electrolysis cell (SOEC) at the system level, comparing the Levelized Cost of Hydrogen (LCOH) at different locations under three scenarios: heat integration, super grid connection, and SOEC development. It is found that SOEC generates additional ohmic heat and reduces the external heat demand significantly after degradation. Through heat integration, the LCOH is reduced to $3.60 per kg, further lowered to $2.59 per kg with the super grid connection. SOEC development breaks the trade-off between current density and degradation, resulting in an LCOH of $2.18 per kg. By 2035, green hydrogen is expected to achieve an LCOH of $1.40 per kg, surpassing gray hydrogen.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Energy & Fuels
Christoffer Lythcke-Jorgensen, Lasse Rongaard Clausen, Loui Algren, Anders Bavnhoj Hansen, Marie Munster, Rasmus Ostergaard Gadsboll, Fredrik Haglind
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.