Article
Engineering, Electrical & Electronic
Alireza Hassanzadeh, Sajjad Baghestani
Summary: This article introduces a new self-powered temperature sensor based on thermoelectric generators (TEGs). The sensor utilizes two types of TEGs to measure temperature and supply the interface circuit, and employs a three-terminal TEG to account for the temperature difference between the cold and hot surfaces. By using a machine-learning algorithm and Seebeck curve fitting, the sensor achieves an error of less than +/- 1 degrees C for cold surface temperatures ranging from 0 degrees C to 70 degrees C.
IEEE SENSORS JOURNAL
(2022)
Article
Thermodynamics
Yuhang Fan, Changxin Liu, Kaiyuan Zhao, Tong Shao, Ruoshui Chen, Yilin Pan, Zhijian Liu, Xinxiang Pan
Summary: Gas leakage is a common issue in the engine room of ocean-going ships, with NO2 gas being a major concern. The existing sensors for detecting NO2 gas in the machinery space have limitations in detection range, sensitivity, and stability. In this study, a self-powered sensing prototype using electronic printing was developed, consisting of a flexible thermoelectric film and a gas sensor. The prototype exhibited high output voltage and power, good stability, and repeatability. It offers a new approach for monitoring harmful gases in ship engine rooms.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Wusheng Fan, Zijian An, Feng Liu, Ziheng Gao, Min Zhang, Chenguang Fu, Tiejun Zhu, Qingjun Liu, Xinbing Zhao
Summary: A stretchable thermoelectric generator (TEG) that combines comfortable wearability and outstanding output performance is reported. When worn on the forehead, the stretchable TEG exhibits excellent power densities, with a maximum value of 13.8 μW cm(-2) under breezeless conditions and as high as 71.8 μW cm(-2) at an air speed of 2 m s(-1). It can effectively power a commercial light-emitting diode and stably drive an electrocardiogram module in real-time without any additional power supply, highlighting its great potential for power generation applications.
Article
Chemistry, Multidisciplinary
Shiguo Han, Lina Li, Chengmin Ji, Xitao Liu, Guan-E Wang, Gang Xu, Zhihua Sun, Junhua Luo
Summary: A new photoferroelectric material has been developed, which can provide a controllable power source for self-powered gas sensing of NO2 at room temperature. It exhibits extremely fast response/recovery speeds and high sensitivity, outperforming typical inorganic systems. This work sheds light on the development of self-powered sensing systems and expands the functionalities of photoferroelectrics.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Peidi Zhou, Jian Lin, Wei Zhang, Zhiling Luo, Luzhuo Chen
Summary: This study presents a graphene-based light-driven actuator with self-powered sensing function, designed by integrating a photo-thermoelectric generator into the actuator. It can detect sensing signals without external electrical power and generate voltage signals through the photo-thermoelectric effect to characterize the deformation state of the actuator.
Article
Chemistry, Multidisciplinary
Cheng Chen, Rui Wang, Xin-Lin Li, Bin Zhao, Heng Wang, Zhan Zhou, Jianhua Zhu, Jian-Wei Liu
Summary: This study presents the design of a nanowire film wavy structure for stretchable thermoelectric generators. By utilizing the photothermal effect and thermoelectric materials, the device can generate electricity output and keep the skin warm in cold weather, while also improving performance through the use of passive radiative cooling technology.
Article
Thermodynamics
Nguyen Van Toan, Truong Thi Kim Tuoi, Nguyen Van Hieu, Takahito Ono
Summary: This study presents thermoelectric generators (TEGs) for portable and wearable self-powered electronic devices, comparing two different devices with low and high numbers of thermoelectric elements. The TEGs demonstrate high performance and potential as power sources for portable and wearable electronic devices, with successful demonstrations as power supplies for a calculator and a twist watch. In addition, energy harvested from the TEGs can be stored in rechargeable batteries via DC-DC converters, with efficient electronic conversion.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Physical
Nguyen Van Toan, Truong Thi Kim Tuoi, Takahito Ono
Summary: This paper presents a high-performance flexible thermoelectric generator (TEG) and its application in self-powered wireless Bluetooth sensing systems. The flexible TEG, based on a polyimide substrate and an electrodeposited thermoelectric material, achieves high output voltage and power density under a temperature difference. It demonstrates excellent flexibility and consistent performance in repeatability evaluations. Two practical applications, including electric power generation from waste heat and a self-powered wireless BLE sensing system, have been successfully conducted. This work opens up new opportunities for utilizing thermal waste heat to generate electricity in flexible TEGs, particularly in the field of wireless self-powered IoT sensing systems.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Sijing Zhu, Lei Miao, Ying Peng, Jie Gao, Huajun Lai, Chengyan Liu, Yong Zhang, Xinyue Zhang, Zhiwei Chen, Yanzhong Pei
Summary: Wearable electronics improve our lives in terms of work efficiency, health, and lifestyle. However, the low efficiency and toxicity of wearable thermoelectric generators (w-TEGs) limit their widespread application. This study developed an environmentally friendly and high-performance flexible inorganic phase change material (IPCM) as the heat sink of w-TEGs. The results showed that this heat sink could provide over 35 mu W/cm2 output power lasting for 1.5 hours (motionless) or over 8 hours (motion).
MATERIALS TODAY PHYSICS
(2023)
Article
Thermodynamics
Chen Wang, Zhiheng Xu, Hongyu Wang, Ting Cai, Haijun Tao, Yuqiao Wang, Xiaobin Tang
Summary: Nuclear battery technology offers a unique solution in various fields, reducing weight and cost while extending the lifespan of wireless sensor networks. This study proposes the use of an RTG as a substitute for traditional batteries, generating long-term electrical energy. Power management is achieved through DC-DC converters, with energy storage in super-capacitors. The study also explores the application of this combined system in different environments, such as confined spaces and polar regions.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
Linfeng Wang, Jin Li, Jing Tao, Minhao Hu, Zhendong Dai
Summary: This paper presents a self-powered particle sensor based on a triboelectric nanogenerator, which detects particles with or without charge by studying the relationship between the output voltage and the material and size of particles. This work promotes the development and application of triboelectric nanogenerator in various fields.
Article
Chemistry, Physical
Junpeng Zhong, Rongrui Chen, Tingting Shan, Fei Peng, Mingfu Qiu, Zhonghao Sun, Kunlun Ren, Chuan Ning, Kun Dai, Guoqiang Zheng, Chuntai Liu, Changyu Shen
Summary: Fiber-based sensor based on the core-sheath structure has shown great potential in strain sensing and self-powered applications. In this study, a continuous fabrication method was developed to obtain a core-sheath fiber with good interfacial interaction between the sheath layer and the core layer. The resulting fiber strain sensor exhibited high sensitivity, wide working range, and fast response time. Moreover, this core-sheath fiber also enabled the development of self-powered devices such as a bionic whisker and a mechanical energy harvester.
Article
Chemistry, Multidisciplinary
Min Sub Kwak, Kyung-Won Lim, Ha Young Lee, Mahesh Peddigari, Jongmoon Jang, Chang Kyu Jeong, Jungho Ryu, Woon-Ha Yoon, Sam Nyung Yi, Geon-Tae Hwang
Summary: This paper presents a multiscale micro- and nano-structured magneto-mechano-triboelectric nanogenerator (MMTENG) enabled by a salt particle imprinting process, which can power an internet of thing (IoT) sensor. The energy device demonstrates good output stability and provides direct power supply for an IoT temperature sensor.
Article
Engineering, Electrical & Electronic
Chuan Wu, Qing Zhou, Guojun Wen
Summary: A self-powered rotation speed sensor for drill pipe based on triboelectric-electromagnetic hybrid nanogenerators is proposed in this paper, showing high reliability and wide applicability.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Multidisciplinary
Zixuan Wu, Hao Wang, Qiongling Ding, Kai Tao, Wenxiong Shi, Chuan Liu, Jun Chen, Jin Wu
Summary: In this study, a self-powered and reusable all-in-one NO2 sensor is proposed by coupling the sensor to the battery, achieving ultrahigh sensitivity, linearity, ultralow detection limit, and humidity immunity. The device is combined with a well-designed low-power circuit module for wearable electronics and early warning of gas leakage.
ADVANCED FUNCTIONAL MATERIALS
(2023)
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)