Article
Physics, Fluids & Plasmas
Jiale Chen, Vincent S. Chan, Xiang Jian, Xinjun Zhang, Qilong Ren, Guoqiang Li, Chengxi Zhou
Summary: This study designs hybrid scenario plasmas at flat-top phase using integrated modeling to achieve the goals of demonstrating DEMO relevant fusion power level and tritium self-sufficiency. The physics justification for the selection of plasma density, Z(eff), safety factor profile, and the choice of auxiliary heating and current drive is presented. Turbulent transport analysis shows that electromagnetic effects can enhance energy confinement but reduce particle confinement and thus fusion power.
Article
Construction & Building Technology
Aleena Alex, Brubeck Freeman, Anthony Jefferson, Enrico Masoero
Summary: This study proposes a coarse-grained Kinetic Monte Carlo approach to simulate the microstructural evolution of cement paste during carbonation and predicts the rate constants for dissolution and precipitation. The results can support applications in self-healing and carbon capture.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Energy & Fuels
Luis Humberto Lopez-Murillo, Victor Hugo Grisales-Diaz, Manuel Pinelo, Oscar Andres Prado-Rubio
Summary: Concentration polarization and fouling are key issues in designing ultrafiltration and microfiltration units, and dynamic operation can enhance separation performance. Two hybrid mathematical models were developed and tuned to predict the behavior of the polarization layer in dynamic UF. Experimental results and developed models indicate that dynamic operation intensifies system performance without decreasing membrane flux.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Energy & Fuels
Gabriel Adua Awejori, Christine Doughty, Fengyang Xiong, Thomas Paronish, Nicholas Spycher, Mileva Radonjic
Summary: The interactions between rock minerals and hydraulic fracturing fluids play a significant role in the properties of shale formations, but the mechanisms of geochemical reactions in these unconventional reservoirs are still unclear. Experimental results revealed that a lower pH triggered high dissolution rates, especially for carbonate components. The concentration of most elemental species increased, except for aluminum and magnesium, which rapidly declined. The deflocculation of clay minerals during reaction resulted in fines migration and potential blockage of hydrocarbon pathways.
Article
Chemistry, Physical
Shuang Xing, Chen Zhao, Shuai Ban, Huaming Su, Ming Chen, Haijiang Wang
Summary: This paper demonstrates a hybrid fuel cell system integrated with a methanol steam reformer and methanation reactor for direct electric power generation in a low-temperature polymer electrolyte fuel cell. Optimum conditions for methanol steam reforming and methanation reactions are verified experimentally, and power density comparisons between different fuels are provided, showing potential for commercialization of the fuel cell technology.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Xinyue Cao, Lingyu Sun, Dongyu Xu, Shuangshuang Miao, Ning Li, Yuanjin Zhao
Summary: A novel melanin-integrated structural color hybrid hydrogel patch is developed for wound healing, which exhibits photothermal antibacterial and antioxidant properties. The drug release induced color shifting can be used to monitor the delivery processes. This multifunctional patch shows excellent therapeutic effects for in vivo wound treatment.
Article
Engineering, Mechanical
Yu Zheng, Yang Yang, Shaofeng Han, Ke Ma
Summary: The study aims to establish a dynamic interaction model describing the process of HCM stretching trapezoidal membrane, which is validated through experiments with PDMS and human ALC samples, showing average relative errors of 10.78% and 8.79% respectively.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Chemistry, Physical
Xi Chen, Shichun Long, Chunxi Wang, Fasen Chai, Luling Li, Pengfei Duan, Shi Li, Zhongmin Wan, Zhiguo Qu
Summary: A hybrid PEMFC multi-generation system model integrated with solar-assisted methane cracking is established. It consists of a disc type solar collector, PEMFC, and Organic Rankine cycle (ORC). Methane is cracked by solar energy to generate hydrogen, which provides power and heat. The waste heat and hydrogen are efficiently utilized to generate electricity through ORC and PEMFC. The system's performance is investigated by mapping the relationships between thermodynamic parameters and economic factors. The results show high exergy utilization factor, energy efficiency, and solar-chemical energy conversion efficiency. The system also achieves greenhouse gas emission reductions and low levelized cost of energy. After operation, significant GHG emission reduction and carbon recovery are achieved, promoting the popularization of PEMFC in zero energy buildings.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Hossein Pourrahmani, Martin Gay, Adel Yavarinasab, Jan Van Herle
Summary: This study evaluates the possibility of using an integrated Lithium-Ion battery and proton exchange membrane fuel cell (PEMFC) as the prime mover. Twenty-five scenarios are proposed, and the results show that the best performance can be achieved with a Lithium Titanite Oxide (LTO) Lithium-Ion battery and nine PEMFCs.
Article
Chemistry, Physical
Chang Dong, Xin Xu, Jin Zhang, Haining Wang, Yan Xiang, Haijin Zhu, Maria Forsyth, Shanfu Lu
Summary: Introduction of porous structure is an effective approach to enhance the proton conductivity of high temperature polymer electrolyte membranes. This study comprehensively investigates the proton transport behavior of porous triazole-polysulfone membranes. The results show that the porous structure improves the proton diffusion coefficient and proton conductivity, but excessive pore connectivity leads to increased gas permeability and decreased cell performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Materials Science, Multidisciplinary
Yanyan Chen, Yuekun Liu, Yingjie Xu, Xudong Guo, Yang Cao, Wuyi Ming
Summary: This article focuses on the progress in modeling and simulation of material structure in membrane electrode assemblies (MEAs) for improving the performance of proton exchange membrane fuel cells (PEMFC), including comprehensive evaluations of gas diffusion layer, catalytic layer, and proton exchange membrane simulation models.
Article
Energy & Fuels
Junjie Zhao, Huawei Chang, Xiaobing Luo, Zhengkai Tu, Siew Hwa Chan
Summary: This study proposes a combined cooling, heating, and power system integrated with methanol-reforming and dehumidification for data centers. The system effectively controls temperature and humidity requirements while recovering low-grade waste heat from PEMFC stacks.
Article
Multidisciplinary Sciences
Ivan Argatov, Felix Roosen-Runge, Vitaly Kocherbitov
Summary: This study develops a concentration-dependent diffusion model based on Fick's law of diffusion, and explains age-related changes through the analysis of water diffusion through the skin.
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Hashina Parveen Anwar Ali, Zichen Zhao, Yu Jun Tan, Wei Yao, Qianxiao Li, Benjamin C. K. Tee
Summary: A method using an energy functional dynamical model and machine learning is proposed to predict and understand the mechanics of self-healing polymers, capturing the temporal evolution of macroscopic properties. This approach reduces the need for destructive testing.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Zhiran Zheng, Jiawei Li, Kailun Wei, Ning Tang, Min-Hui Li, Jun Hu
Summary: This study develops an integrated auxetic elastomer (IAE) that can exhibit transverse expansion while being axially stretched. By using high-modulus cross-linked poly(urethane-urea) as a skeleton and low-modulus non-cross-linked poly(urethane-urea) as a complementary-shape matrix, along with the dual dynamic interfacial healing promoted by disulfide bonds and hydrogen bonds, the resulting IAE possesses flat, void-free, and sharp soft-to-hard interface-free characteristics. Moreover, the fracture strength and elongation at the break of the IAE are significantly improved compared to those of the corrugated re-entrant skeleton alone, while maintaining the negative Poisson's ratio (NPR) within a certain strain range. Finite element analysis further confirms the advantageous mechanical and auxetic properties of this elastomer.
ADVANCED MATERIALS
(2023)
Article
Energy & Fuels
Fei Peng, Yuanzhe Zhao, Ting Chen, Xuexia Zhang, Weirong Chen, Donghua Zhou, Qi Li
Article
Chemistry, Physical
Fei Peng, Bobo Mao, Liwei Li, Zhiyu Shang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
Xin Li, Zhiyu Shang, Fei Peng, Liwei Li, Yuanzhe Zhao, Zhixiang Liu
Summary: This paper proposes an incremental power distribution strategy for achieving online collaborative performance enhancement between fuel economy and durability in parallel multi-stack fuel cell systems. The strategy obtains a quantitative correlation between fuel economy and durability through analytical power increments and utilizes an iterative high-order sliding-mode differentiation procedure to improve applicability and fault tolerance. The strategy is verified to ensure fault tolerance operation and collaborative performance enhancement in multi-stack fuel cell systems with minimum hydrogen consumption and maximum service life compared to other advanced strategies.
JOURNAL OF POWER SOURCES
(2021)
Article
Thermodynamics
Fei Peng, Xiangmin Xie, Kewen Wu, Yuanzhe Zhao, Linjie Ren
Summary: In this paper, a hierarchical energy management strategy is proposed to comprehensively consider the coupling effect between the top-level power distribution among different system clusters and the bottom-level power distribution within each system cluster. The proposed strategy guarantees the collaborative performance enhancement for fuel cell based heavy-duty hybrid power system through accurate energy consumption modeling. The effectiveness and practicability of the proposed strategy are verified by three assessment cases based on hardware-in-the-loop simulation.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Computer Science, Information Systems
Linjie Ren, Guobin Lin, Yuanzhe Zhao, Zhiming Liao, Fei Peng
Summary: This research proposes an adaptive non-singular terminal sliding mode control scheme for the synchronous reluctance motor drive system, which improves the dynamic performance and robustness of the system through methods such as analytical modeling, adaptive gain reaching law, and nonlinear disturbance observer. The system's asymptotic stability is demonstrated through Lyapunov's theorem, with experimental results confirming satisfactory dynamic performance and robustness.
Article
Computer Science, Information Systems
Yuanzhe Zhao, Linjie Ren, Guobin Lin, Fei Peng
Article
Computer Science, Information Systems
Yuanzhe Zhao, Fei Peng, Linjie Ren, Guobin Lin, Junqi Xu
Article
Energy & Fuels
Fei Peng, Yuanzhe Zhao, Xiaopeng Li, Zhixiang Liu, Weirong Chen, Yang Liu, Donghua Zhou
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)
