Article
Chemistry, Multidisciplinary
Sude Huang, Xia Wu, Tianliang Lin, Qihuai Chen, Haoling Ren
Summary: The proposed energy recovery structure control strategy can improve the energy efficiency of an electric loader. It uses a hydraulic braking pressure-based emergency braking intention recognition strategy to distinguish different braking intentions, and uses the hydraulic braking system pressure as a feedback parameter to improve braking safety. It also proposes a collaborative control strategy of walking regenerative braking and mechanical braking to enhance braking smoothness and realize driver braking intention recognition under different working conditions. With an energy recovery efficiency of 71.64% and a maximum energy saving of 7.58% for the whole vehicle under one cycle condition, the proposed strategy has a significant energy-saving effect.
APPLIED SCIENCES-BASEL
(2023)
Article
Thermodynamics
P. Fernandez-Yanez, V. Romero, O. Armas, G. Cerretti
Summary: The attention to waste heat recovery technologies has been driven by energy savings for economic and environmental reasons. Thermoelectric generators, originally used in harsh conditions, have emerged as an option for recovering waste energy, despite the challenge of low conversion efficiency. The design process must be tailored to the system for effective energy recovery.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Xuebo Li, Jian Ma, Xuan Zhao, Lu Wang
Summary: A composite braking control strategy for four-axle battery electric heavy-duty trucks equipped with an electromechanical braking system is studied. The strategy includes torque distribution and dynamic coordinated control to maximize energy recovery and ensure braking stability. The proposed strategy outperforms benchmark strategies in terms of comprehensive braking performance and achieves an energy recovery rate above 40% in different load states.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Kyung-Taek Yoon, Young-Man Choi
Summary: In this study, a systematic analysis of a biomechanical regenerative braking energy harvester was conducted. The designed harvester demonstrated a high power density level and the ability to assist in braking human joints in various walking scenarios.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Thermodynamics
Qiang He, Yang Yang, Chang Luo, Jun Zhai, Ronghua Luo, Chunyun Fu
Summary: Braking energy recovery technology plays a significant role in extending the endurance range and reducing hydraulic braking system wear in new energy vehicles. This study proposes an optimized energy recovery strategy for a dual-motor-driven pure electric vehicle, aiming to enhance energy recovery rate and shorten braking distance. The strategy includes a torque optimization strategy for motor braking and a dynamic coordinated control strategy for electro-hydraulic compound braking, both of which are proven effective through simulation results.
Article
Automation & Control Systems
Yeayoung Park, Seokhyeon Park, Changsun Ahn
Summary: Regenerative braking is a crucial feature for enhancing the driving range of electric vehicles (EVs). This paper presents a method to extract the maximum performance and optimal control variables for maximizing energy recovery. By designing a simple braking strategy based on the extracted optimal solutions, the simulation results showed superior performance compared to the previously regarded best strategy of maximum generation torque for energy recovery.
INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS
(2023)
Article
Energy & Fuels
Yawar Irshad Badri, Suresh Kumar Sudabattula, Ikhlaq Hussain, Hasmat Malik, Fausto Pedro Garcia Marquez
Summary: This paper presents a method of integrating ultracapacitors with a regenerative braking system for use in electric drive trains. By combining ultracapacitors and batteries, it improves the vehicle's range and enhances speed control response.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Benzhi Hou, Yihua Zheng, Luyi Xing, Qinglu Song
Summary: The performance of thermoelectric heat pumps is enhanced by air recirculation and regenerative energy recovery. Experimental results show that the COP of the air recirculation TEHP is as high as about 3.7, and the COP with recirculation is 51-73% higher than without recirculation. The combination of regenerative heat recovery and air recirculation further improves the energy efficiency of the heat exchanger test system.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Jiang Biao, Zhang Xiangwen, Wang Yangxiong, Hu Wenchao
Summary: An optimized distribution algorithm for regenerative braking technology to increase the range of electric vehicles is proposed, which optimally allocates braking forces to front and rear axles. The designed regenerative braking control strategy was tested through simulations, showing an improvement of over 51.9% in braking energy recovery efficiency.
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Bragadeshwaran Ashok, Chidambaram Kannan, Chirag Deepak, Rathan Ramesh, Tharun M. Narendhra, Mohamed Emad Farrag, Sathiaseelan Denis Ashok, Rajasekar Vignesh, Pemmareddy Saiteja, Chellapan Kavitha
Summary: This study aims to achieve optimal regenerative braking performance for a BLDC electric machine with peak torque of 10 Nm in electric two-wheelers by comparing control algorithms based on Direct Look-up table, Fuzzy Logic, and their combination with PID control. MATLAB Simulink is used to design the whole vehicle model and energy recovery control strategies. WLTP Class 2 and NYCC standard drive cycles are implemented for vehicle simulation, and two live-recorded driving patterns are used to validate the model. The Fuzzy PID control strategy exhibits the most optimal gains in terms of energy recovery, providing a significant increase in battery SOC levels compared to a non-regenerative braking-based system.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Yueying Ye, Xia Wu, Tianliang Lin
Summary: This paper proposes a braking intention identification control strategy, which accurately identifies the braking intention through collecting a large amount of braking data and using fuzzy control method, so as to achieve stable braking under different braking intentions.
APPLIED SCIENCES-BASEL
(2023)
Article
Thermodynamics
Farhad Khajvand, Mohammad Zareinejad, Seyed Mehdi Rezaei, Keivan Baghestan
Summary: Environmental contamination has led researchers to propose solutions in various fields, including hybrid drive trains. A new hydraulic circuit for a regenerative braking system is presented to improve energy-saving and eliminate friction braking. The circuit offers single and dual braking modes, with the torque generated by changes in pump output flow and pressure. An artificial neural network is used to decide between the two braking modes. Experimental results show an average energy storage of 63% in single braking mode and 17% in dual braking mode, with maximum speed errors of 3.5 and 7 at different RPMs.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Yinbo Ge, Haitao Hu, Junyu Chen, Ke Wang, Zhengyou He
Summary: This paper proposes a networked flexible traction substation system architecture that connects adjacent substation through unified power flow controllers at sectioning posts. It aims at maximizing the utilization of regenerative braking energy and photovoltaic energy, and improving the reliability and scalability of the system.
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Pablo Fernandez-Yanez, Javier Jarama, Francisco J. Martos, Octavio Armas
Summary: This paper investigates the design of a thermoelectric generator for exhaust gases from internal combustion engines, using experimentally validated CFD methodology. The influence of replacing the exhaust pipe, recirculation, and fins were studied. The results show that enlarging the inlet cone reduces recirculation and pressure drop, but also increases heat loss. Internal straight fins aligned with the flow increase heat transfer and reduce the effects of recirculation, resulting in a net energy production of 160.7 W. A comparison with a flat-type thermoelectric generator is also provided.
APPLIED SCIENCES-BASEL
(2023)
Article
Thermodynamics
Xin Wang, Yingbing Luo, Bin Qin, Lingzhong Guo
Summary: In this study, a variable gain K iterative learning control strategy was proposed to balance the DC regulated voltage characteristics and the optimal lifetime of the battery storage system in the hybrid energy storage system (HESS). Experimental results showed that the proposed strategy effectively stabilized the bus voltage and extended the battery lifetime.
Article
Engineering, Mechanical
Renkai Ding, Ruochen Wang, Xiangpeng Meng, Long Chen
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING
(2020)
Article
Automation & Control Systems
Wei Liu, Ruochen Wang, Chenyang Xie, Qing Ye
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING
(2020)
Review
Education, Scientific Disciplines
Qing Ye, Ruochen Wang, Yinfeng Cai, Long Chen
Article
Engineering, Mechanical
Jiajia Wang, Long Chen, Ruochen Wang, Xiangpeng Men, Dehua Shi
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2020)
Article
Engineering, Electrical & Electronic
Xuan Chen, Zebin Yang, Wei Yu, Ruochen Wang
JOURNAL OF ELECTRONIC MATERIALS
(2020)
Article
Acoustics
Renkai Ding, Ruochen Wang, Xiangpeng Meng, Long Chen
JOURNAL OF VIBRATION AND CONTROL
(2020)
Article
Thermodynamics
Ding Luo, Ruochen Wang, Wei Yu, Weiqi Zhou
ENERGY CONVERSION AND MANAGEMENT
(2020)
Article
Engineering, Mechanical
P. Sathishkumar, Ruochen Wang, Lin Yang, J. Thiyagarajan
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2020)
Article
Green & Sustainable Science & Technology
Ding Luo, Ruochen Wang, Wei Yu, Weiqi Zhou
Article
Electrochemistry
Wei Yu, Nguyen Van Toan, Yi Jie Li, Zhuqing Wang, Takahito Ono, Ruochen Wang
Summary: In this study, smooth, compact, and well-adherent films with ideal composition were successfully electrodeposited within the thickness range of 4 to 100 μm by introducing multiple additives. The introduction of PVA and saccharin sodium significantly increased the electrical resistivity, but the addition of KCl helped increase the electrolyte conductivity and decrease the resistivity back to a certain level.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Engineering, Multidisciplinary
Wei Yu, Chun Huang, Cao Xia, Zhuqing Wang
Summary: Humidity monitoring is crucial in industries such as food processing, pharmaceuticals, and precision electronics. Conventional humidity sensors have limitations in terms of response time and manufacturing complexity. This study explores the use of resistive polymers mixed with carbon black nanoparticles to enhance humidity sensitivity. The results show a linear relationship and high sensitivity, with rapid response and recovery times.
MEASUREMENT SCIENCE AND TECHNOLOGY
(2023)
Proceedings Paper
Automation & Control Systems
Zeyu Sun, Ruochen Wang, Xiangpeng Meng, Qiuiming Jiang
PROCEEDINGS OF 2019 CHINESE INTELLIGENT AUTOMATION CONFERENCE
(2020)
Proceedings Paper
Automation & Control Systems
Ruochen Wang, Dong Sun, Renkai Ding, Xiangpeng Meng
PROCEEDINGS OF 2019 CHINESE INTELLIGENT AUTOMATION CONFERENCE
(2020)
Article
Computer Science, Information Systems
Xiangpeng Meng, Ruochen Wang, Renkai Ding, Long Chen
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.
