Article
Thermodynamics
Haotong Cai, Zihan Ye, Guokun Liu, Alessandro Romagnoli, Dongxu Ji
Summary: With the advancement of thermoelectric material properties, the thermoelectric generator has gained more attention in heat recovery. The design parameters significantly affect the performance of TE modules and systems. Interestingly, integrating more thermoelectric modules does not always lead to higher economic performance, output power, and energy efficiency. This study proposes a novel sizing method to find the optimal size parameters for both module and system levels. Through a case study on exhaust gas from a truck engine, the analytical results provide guidance for thermoelectric generator system designs and facilitate large-scale industrial applications.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
F. P. Brito, Rui Vieira, Jorge Martins, L. M. Goncalves, A. P. Goncalves, Rodrigo Coelho, E. B. Lopes, Elli Symeou, Theodora Kyratsi
Summary: The study evaluates the potential use of earth-abundant, affordable, non-toxic and performant TE materials in thermoelectric generators. Through experiments and simulations, it is found that there is a possibility to open the door to viable waste heat recovery in industrial and automotive applications.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Energy & Fuels
Hisham Alghamdi, Chika Maduabuchi, Kingsley Okoli, Abdullah Albaker, Ibrahim Alatawi, Ahmed S. S. Alsafran, Mohammad Alkhedher, Wei-Hsin Chen
Summary: This study pioneers the integration of TEGs and PV modules within hybrid systems and employs neural networks to analyze the intricate interdependencies among parameters. The results show a remarkable improvement in power output and efficiency, highlighting the transformative potential of integrated TEGs and PV modules and the importance of parameter optimization.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Zhiyu Chen, Mancang Li, Rui Guo, Yu Wang, Daijie Zhou, Zhang Chen, Ran Ang
Summary: The current design optimization efforts for thermoelectric modules focus on constant temperature difference, while the effects of constant heat flux on module output parameters are still unclear. A three-dimensional numerical model is established using COMSOL Multiphysics software to study PbTe as a case study. Heat transfer analysis verifies that the reduction in hot side temperature is dominated by the Peltier effect, leading to deviation in the optimal load resistance and internal resistance ratio from the traditional maximum power point. Increasing the thermoelectric leg height improves the average figure of merit zTavg and output performance. Manipulating the leg cross-sectional area ratio achieves a high efficiency of -14.5% for ideal contacted PbTe-based modules at a temperature difference of 500 K. The importance of parasitic energy loss on performance evolution is recognized. These findings provide universal guidance for improving the efficiency of thermoelectric modules operating under constant heat flux.
MATERIALS TODAY PHYSICS
(2023)
Article
Physics, Multidisciplinary
R. S. Kondaguli, P. Malaji
Summary: This study focuses on modeling and numerical simulation of thermoelectric generators with different shapes to evaluate their efficacy. The results show that trapezoid generators have better efficiency, while square and circular cross-section legs produce more power.
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
(2022)
Article
Engineering, Environmental
Khalid Almutairi, Kashif Irshad, Salem Algarni, Amjad Ali, Saiful Islam
Summary: This study investigated the optimal structural parameters of the PVTE-D under different operating conditions and revealed a novel configuration for higher water condensation capacity.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Pingjun Ying, Heiko Reith, Kornelius Nielsch, Ran He
Summary: Solid-state thermoelectric technology is a promising approach to convert low-grade waste heat into electricity. By optimizing the geometric factors of the modules, the conversion efficiency can be improved, and the feasibility of using Te-free thermoelectric compounds to harvest low-grade heat has been demonstrated.
Article
Physics, Applied
Isao Ohkubo, Masayuki Murata, Akihiko Ohi, Mariana S. L. Lima, Takeaki Sakurai, Takashi Aizawa, Takao Mori
Summary: Miniaturized in-plane p-type thermoelectric devices composed of p-type Mg2Sn0.8Ge0.2 and n-type Bi layers were fabricated using microfabrication techniques. A rational analysis was conducted to evaluate the structural effects on the device performance and to optimize the device geometries. The results showed the importance of considering heat transfer loss and optimizing the structural geometries for effective operation of the devices.
APPLIED PHYSICS LETTERS
(2023)
Article
Thermodynamics
Radek Guras, Miroslav Mahdal, Marian Bojko
Summary: This article discusses the CFD simulation of a unique liquid cooling device that combines a two-circuit liquid cooling system with an accumulator and a cooling core consisting of Peltier modules. The simulation aims to predict cooling time, model media flow, and determine the efficiency of the device. The device achieved cooling of 2L of media in slightly over 40 min with an overall efficiency of 14.376%.
APPLIED THERMAL ENGINEERING
(2023)
Review
Chemistry, Multidisciplinary
Dong Wang, Hongde Yu, Wen Shi, Chunlin Xu
Summary: Controlled doping of organic semiconductors (OSCs) is crucial for improving electronic and optoelectronic device performance and enabling applications such as thermoelectric conversion and spintronics. Recent experimental breakthroughs in molecular design and precise doping call for a deeper understanding of the dopant-host interactions. Computational tools were used to study doping effects in organic and coordination polymers. The results provided insights into how to control doping levels and working temperature for high thermoelectric conversion efficiency, highlighted the importance of ionized dopant scattering in charge transport, and demonstrated a practical route for spin polarization in nonradical materials via chemical doping.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Energy & Fuels
Mutabe Aljaghtham, Emrah Celik
Summary: Segmented thermoelectric generators with multiple materials have the potential to enhance energy conversion efficiency, but their thermal reliability at elevated temperatures and in annular configurations is questionable. This study introduces the concept of single material segmented TEG configuration as a solution to thermal stress issues. The unileg system significantly reduces thermal stresses, while also achieving higher power generation and thermoelectric conversion efficiency.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Thermodynamics
Chunyang Wang, Xiao Yang, Yanan Shen, Ting Zhang, Xinghua Zheng, Haisheng Chen
Summary: A three-dimensional numerical study was conducted to investigate the cooling performance of a thermoelectric module with multilayer pyramid thermoelectric legs. Two physical models, rectangular shaped and multilayer pyramid thermoelectric cooling modules, were compared. The study focused on the effect of leg height, side ratio, and the number of leg layers on the cooling performance. The results showed that the multilayer pyramid module had better cooling performance than the rectangular shaped module, with a maximum reduction of 11.25 K in the minimum averaged temperature of the cold surface. However, the cooling performance of the multilayer pyramid module was not very good when the values of side ratio and the number of leg layers were low. A recommended map for evaluating the cooling performance was presented based on the side ratio, the number of leg layers, and the heights of thermoelectric legs.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Dongxu Ji, Shuwen Hu, Yu Feng, Jiang Qin, Zhijian Yin, Alessandro Romagnoli, Junhua Zhao, Huihuan Qian
Summary: The study proposed a simulation model and design methodology for a solar thermoelectric generator, analyzed various design parameters to find the optimal design parameters set, and improved the output power performance.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Multidisciplinary
Qian Xu, Biao Deng, Lenan Zhang, Shaoting Lin, Zhijia Han, Qing Zhou, Jun Li, Yongbin Zhu, Feng Jiang, Qikai Li, Pengxiang Zhang, Xinbo Zhang, Gang Chen, Weishu Liu
Summary: This study presents a bulk-material-based f-TEG with multifunctional copper electrodes and fabrics, which improves heat concentration, dissipation, comfort, and heat-leakage reduction. The results show that the f-TEG achieves high output power density and illumination performance under specific environmental conditions.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Physical
Dulyawich Palaporn, Wiyada Mongkolthanaruk, Kajornsak Faungnawakij, Ken Kurosaki, Supree Pinitsoontorn
Summary: A flexible thermoelectric paper was successfully fabricated using bacterial cellulose/silver selenide nanocomposites. The in situ synthesis of silver selenide particles within the bacterial cellulose structure resulted in a homogeneous distribution of submicrosize particles, leading to enhanced thermoelectric properties. The hot-pressing process further improved the microstructure and increased the power factor of the paper.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Thermodynamics
Haotong Cai, Zihan Ye, Guokun Liu, Alessandro Romagnoli, Dongxu Ji
Summary: With the advancement of thermoelectric material properties, the thermoelectric generator has gained more attention in heat recovery. The design parameters significantly affect the performance of TE modules and systems. Interestingly, integrating more thermoelectric modules does not always lead to higher economic performance, output power, and energy efficiency. This study proposes a novel sizing method to find the optimal size parameters for both module and system levels. Through a case study on exhaust gas from a truck engine, the analytical results provide guidance for thermoelectric generator system designs and facilitate large-scale industrial applications.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Chonghui Chen, Wen Su, Lingli Xing, Xinxing Lin, Dongxu Ji, Naijun Zhou
Summary: In this study, a model is developed based on the Peng-Robinson equation and the van der Waals mixing rule to predict the physical properties of CO2 mixtures. The model parameters are fitted for different groups of CO2 mixtures. The results show good agreement between the predicted and experimental data, indicating the effectiveness of the model in obtaining the physical properties of CO2 mixtures.
FLUID PHASE EQUILIBRIA
(2023)
Article
Engineering, Electrical & Electronic
Jianwei Li, Weitao Zou, Qingqing Yang, Zhongbao Wei, Hongwen He
Summary: Fuel cell based combined heat and power (FC-CHP) system is a promising distributed energy solution in south of China to meet the high power demand without central heating. A dynamic heat/power switching strategy and a new energy management strategy are proposed to improve system efficiency and maximize stakeholder benefits. This research reduces fuel cell degradation and achieves energy consumption economy in a practical example in Jiangsu province.
IEEE TRANSACTIONS ON SMART GRID
(2023)
Article
Chemistry, Physical
Zhongbao Wei, Xiaofeng Yang, Yang Li, Hongwen He, Weihan Li, Dirk Uwe Sauer
Summary: This paper proposes a machine learning-based fast charging strategy for lithium-ion batteries. By using a reduced-order electrochemical-thermal model in the cloud, the soft actor-critic deep reinforcement learning algorithm is exploited to train the strategy. Hardware-in-Loop tests and experiments show that the proposed strategy effectively mitigates risks and improves the safety and longevity of batteries during fast charging. Compared to the commonly-used empirical protocol, the proposed approach extends the battery cycle life by about 75%.
ENERGY STORAGE MATERIALS
(2023)
Article
Thermodynamics
Manuel Jimenez-Arreola, Christoph Wieland, Alessandro Romagnoli
Summary: This paper presents a test rig to study the effect of the geometry of an ORC evaporator in mitigating the adverse effects of thermal power fluctuations from a waste heat source. Experimental results show that a finned tube heat exchanger design can significantly reduce the thermal inertia of the system and dampen the variations of the heat source transmitted to the ORC system, enabling more stable operation.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Environmental
Huan Liu, Dongxu Ji, Meng An, A. W. Kandeal, Amrit Kumar Thakur, Mohamed R. Elkadeem, Almoataz M. Algazzar, Gamal B. Abdelaziz, Swellam W. Sharshir
Summary: In order to improve the thermo-economic performance of a pyramid solar still (PSS), the researchers integrated evacuated tubes and ultrasonic foggers into the device and added Co3O4 nanofluid. The results showed that incorporating all the proposed additives increased freshwater production, energy efficiency, and exergy efficiency by 83.87%, 18.29%, and 38.86% respectively. Additionally, the production cost per liter of freshwater was reduced by 11.61%.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Energy & Fuels
Hossein Dehghani Tafti, Georgios Konstantinou, Qiyang Lei, John E. Fletcher, Glen G. Farivar, Salvador Ceballos, Josep Pou
Summary: The integration of converter-based renewable energy resources in a power system reduces the required minimum level of inertia in future low-inertia power systems and poses challenges regarding stability and reliability. To overcome these challenges, grid support from distributed photovoltaic (DPV) systems is proposed. This paper demonstrates the effectiveness of adaptive power system frequency support from DPV systems in improving overall system operation and providing faster dynamic response and higher power support under low inertia conditions.
Article
Engineering, Electrical & Electronic
Hein Wai Yan, Glen G. Farivar, Neha Beniwal, Hossein Dehghani Tafti, Salvador Ceballos, Josep Pou, Georgios Konstantinou
Summary: In stand-alone dc microgrids, conventional use of battery energy storage systems for voltage regulation leads to continuous battery operation. This study proposes a control strategy to prolong battery lifetime by reducing charging current and maintaining lower state-of-charge (SoC) values if the PV power is sufficient. Experimental tests validate the dynamic performance of the proposed strategy, while simulated case studies evaluate its effectiveness in extending the life of a lithium-ion (Li-ion) battery.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2023)
Article
Automation & Control Systems
Qian Xiao, Yu Jin, Josep Pou, Hongjie Jia, Yunfei Mu, Remus Teodorescu, Frede Blaabjerg
Summary: This article proposes a space-vector-equalized predictive current control scheme for the three-phase modular multilevel converter (MMC) to address the challenges of control options and steady-state tracking errors. By considering each arm of the MMC as a whole, the evaluated control options can be significantly reduced. Optimal vectors are selected and their dwell times are calculated based on the predicted output currents. Compensation terms are added to improve the steady-state performance. Experimental results demonstrate fast dynamic response and excellent steady-state performance for the three-phase MMC.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Huawei Yuan, Hin Sang Lam, Neha Beniwal, Siew-Chong Tan, Josep Pou, Shu-Yuen Ron Hui
Summary: Capacitor voltage imbalance in NPC converters is a well-known problem, and existing solutions are either costly in terms of hardware or involve complex algorithms. This article proposes a new control method called direct-switch duty-cycle control (DSDCC) that addresses the issue and achieves near-optimal performance with simple implementation. By directly considering the duty cycles of switches, DSDCC can generate gating signals with only one carrier and derive near-optimal duty cycles, simplifying the controller design. Experimental results validate the effectiveness of DSDCC with a 5L-NPC converter.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Automation & Control Systems
Qingxiang Liu, Ezequiel Rodriguez, Glen Ghias Farivar, Josep Pou, Ramon Leyva, Christopher D. D. Townsend
Summary: This article proposes a discontinuous modulation (DM) scheme for cascaded H-bridge static compensators with star configuration. The scheme ensures zero steady-state active power in each converter phase arm, even in the presence of severe grid imbalance conditions. It also offers a more flexible operation by clamping to the zero-voltage level, resulting in lower zero-sequence-voltage injection requirements and switching losses. The proposed scheme is experimentally verified and compared with traditional modulation schemes under different grid voltage conditions.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Review
Engineering, Electrical & Electronic
Qian Xiao, Yu Jin, Hongjie Jia, Yi Tang, Allan Fagner Cupertino, Yunfei Mu, Remus Teodorescu, Frede Blaabjerg, Josep Pou
Summary: This article provides a comprehensive review of fault diagnosis and fault-tolerant control methods for MMC under submodule failures. A comparison of different fault diagnosis methods is conducted and verification results are provided to analyze the advantages and disadvantages of popular fault-tolerant control methods. The review concludes with a discussion of future trends and research opportunities.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Bellamkonda Dwiza, Kalaiselvi Jayaraman, Naga Brahmendra Yadav Gorla, Samarjeet Singh, Josep Pou
Summary: In recent years, the dual active bridge (DAB) dc-dc converter with integrated transformers has been explored due to its advantages of low component count, high power density, and high efficiency. This article presents a detailed analysis of the common-mode (CM) noise performance of the DAB converter with an integrated transformer. It proposes a concentric CM choke that occupies less volume compared to its equivalent conventional CM choke and provides design guidelines for it. Experimental validation is conducted on a DAB converter prototype.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Haokai Ruan, Hongwen He, Zhongbao Wei, Zhongyi Quan, Yunwei Li
Summary: This article proposes a novel state of health (SOH) estimator using partial constant-voltage (CV) charging data. Thorough analysis is performed to determine the most informative and robust health indicators (HIs), with CV capacity found to be the most suitable for SOH estimation. To address the challenge of partial CV charging, a novel CV phase reconstruction method combining Q - V modeling and open-circuit voltage (OCV) estimation is proposed to accurately predict the CV capacity based on available partial CV data. The proposed method is validated with long-term degradation experiments, demonstrating high accuracy, low charging completeness requirement, and robustness to cell inconsistency.
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
(2023)
Article
Thermodynamics
Zhongbao Wei, Ruoyang Song, Dongxu Ji, Yanbo Wang, Fengwen Pan
Summary: This paper proposes a hierarchical thermal management strategy for proton exchange membrane fuel cell (PEMFC) based on an energy management strategy and a hydrogen consumption minimization strategy. The strategies are combined using deep reinforcement learning algorithm to deal with the complex cooling system.
APPLIED THERMAL ENGINEERING
(2024)
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)
