Article
Engineering, Environmental
Guiyan Zang, Pingping Sun, Amgad Elgowainy, Michael Wang
Summary: CO2 capture and utilization provide an alternative pathway for low-carbon hydrocarbon production. The study found that the methanol production systems, including integrated and stand-alone systems, have different environmental impacts and prices that are influenced by the hydrogen price and CO2 abatement credits.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Agricultural Engineering
Simon Vecten, Michael Wilkinson, Nuno Bimbo, Richard Dawson, Ben M. J. Herbert
Summary: The study effectively converted biomass into combustible gas using pure steam in a microwave-induced plasma reactor, achieving a carbon conversion efficiency of over 98% and producing syngas with high calorific value and rich hydrogen content.
BIORESOURCE TECHNOLOGY
(2021)
Review
Energy & Fuels
Praveen Kumar Ghodke, Amit Kumar Sharma, Arun Jayaseelan, K. P. Gopinath
Summary: The increasing global population growth, modernization, and industrialization have led to a significant rise in energy consumption, resulting in worsened climate conditions and greenhouse gas emissions. As a result, researchers are exploring eco-friendly and sustainable energy sources, with hydrogen (H2) emerging as a clean and carbon-free future energy carrier. Thermochemical routes and the use of lignocellulosic biomass have shown great potential for sustainable H2 production. This study provides an overview of advancements in gasification technologies, operating conditions, catalysts, and emerging technologies for improving H2-rich syngas production.
Article
Thermodynamics
Po-Chih Kuo, Biju Illathukandy, Wei Wu, Jo-Shu Chang
Summary: The study investigates the plasma-assisted hydrogen production process from microalgae through energy, exergy, and environmental analyses. Different microalgal biomass fuels are used for steam plasma gasification, with torrefied microalgae showing better performance at the carbon boundary points. The torrefied feedstock exhibits improved calorific value but increased plasma energy demand compared to raw microalgae, affecting the efficiencies of gasification and hydrogen production.
Article
Chemistry, Physical
Giulia Cruz Lamas, Bruno Santanna Chaves, Pedro Paulo de Oliveira Rodrigues, Thiago da Silva Gonzales, Thais Barbosa, Patrick Rousset, Grace F. Ghesti, Edgar A. Silveira
Summary: This study aims to simulate the steam-enhanced co-gasification of hybrid blends composed of municipal solid waste and urban forest waste, with torrefaction as pretreatment. Experimental, numerical, and optimization techniques evaluated the gasification process to produce hydrogen-rich gas or enhanced calorific value gas. The study found that under specific conditions, efficient hydrogen production and high calorific value gas can be achieved.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Environmental Sciences
Abid Farooq, Seong-Ho Jang, See Hoon Lee, Sang-Chul Jung, Gwang Hoon Rhee, Byong-Hun Jeon, Young-Kwon Park
Summary: The study introduces an environmentally friendly method for food waste disposal through catalytic steam gasification using various types of Ni-loaded chars. The treated chars showed high hydrogen generation efficiency and prevented coke formation, potentially offering a solution for improving gas yield and hydrogen generation.
Review
Chemistry, Physical
Lourdes Jara-Cobos, Monica Abril-Gonzalez, Veronica Pinos-Velez
Summary: Hydrogen is considered a crucial future energy source due to its potential for renewable generation and CO2 emission reduction. This review analyzes various thermochemical techniques for hydrogen production from biomass and industrial/agro-industrial processes, including gasification, liquefaction, and pyrolysis. The study presents production yields, reactor setups, reaction conditions, and catalysts, concluding with a brief comparison of methods to evaluate their pros and cons.
Article
Chemistry, Physical
Daniele Antolini, Stefano Piazzi, Lorenzo Menin, Marco Baratieri, Francesco Patuzzi
Summary: This study investigates the performance of a reformer reactor for upgrading syngas and char derived from a pilot-scale air gasifier, showing that higher hydrogen concentration and gas quality index can be achieved at higher temperatures and steam flow rates.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Yung Sheng Yong, Ruwaida Abdul Rasid
Summary: In this study, a thermodynamic-based process simulation model was developed to investigate the gasification of empty fruit bunch (EFB) after torrefaction. The results showed that steam gasification is more suitable for hydrogen production compared to air gasification under specific conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Leijie Fu, Yan Cao, Yu Bai
Summary: The study developed an ASPEN Plus model of biomass gasification considering the kinetics of reactions and tar cracking mechanism. Parametric study revealed that under specific operational conditions, maximum H-2 content can be achieved.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Antonia Helf, Schalk Cloete, Florian Keller, Jan Hendrik Cloete, Abdelghafour Zaabout
Summary: This study investigates the prospects of a biomass-to-hydrogen process configuration for large-scale CO2 removal. The results show that the efficiency gains and the use of advanced gas treatment can significantly reduce the cost of hydrogen production. Moreover, high CO2 prices make this negative-emission technology economically attractive.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Thermodynamics
Yan Cao, Hayder A. Dhahad, Hussein Togun, Ali E. Anqi, Naeim Farouk, Babak Farhang
Summary: The utilization of hybrid biomass-solar energies to drive a triple combined power cycle aims to overcome individual drawbacks of different renewable sources, resulting in reduced CO2 emissions and biomass consumption while increasing power generation capacity. However, the incorporation of solar-based hydrogen production with biomass-based gas turbine leads to a decrease in exergetic efficiency and an increase in Levelized Cost Of Electricity (LCOE). Under the best operating conditions based on multi-objective optimization, the proposed triple combined cycle achieves an exergy efficiency of 30.44%, a LCOE of 61.37 $/MWh, and CO2 emission of 0.4579 kg/kWh.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Physical
Mehdi Faraji, Majid Saidi
Summary: In this study, a detailed steady-state equilibrium simulation model was developed to analyze and evaluate the efficiency of the groundnut shell biomass air gasification process. Sensitivity analysis was conducted to investigate the effects of different operating parameters on the syngas composition and H2/CO ratio. The findings showed that temperature, pressure, and equivalence ratio significantly influenced the gas composition, with higher temperature favoring H2 and CO production, increased pressure favoring CO2 and CH4 production, and higher equivalence ratio enhancing CO and CO2 yield.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Syed Muhammad Mustafa Rizvi, Bilal Kazmi, Syed Ali Ammar Taqvi, Mahwish Mobeen Khan, Haslinda Zabiri, Danial Qadir, Ahmed Sayed M. Metwally
Summary: This study investigates the potential of using different types of biomass blends for sustainable bio-hydrogen production. Simulation models were developed and optimized to achieve optimal bio-hydrogen production while minimizing carbon monoxide production and maintaining a set amount of carbon dioxide concentration. The study found that the composition of the feedstock played a crucial role in gasification, with higher calorific values for blends containing higher leather content. The economic analysis further established the potential for the effective utilization of hybrid biomass for renewable bio-hydrogen production.
Article
Agricultural Engineering
Adrian Chun Minh Loy, Hatem Alhazmi, Serene Sow Mun Lock, Chung Loong Yiin, Kin Wai Cheah, Bridgid Lai Fui Chin, Bing Shen How, Suzana Yusup
Summary: This study examined the environmental footprints of H-2 production via catalytic gasification of wheat straw using straw-derived biochar catalysts. The hot spots in the process were identified, with product separation unit (P4) having the greatest environmental impact. The proposed biochar catalyst showed similar catalytic performance with metal-based catalysts but with lower environmental impact, as indicated by benchmarking analysis.
BIORESOURCE TECHNOLOGY
(2021)
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.