Article
Thermodynamics
Deyang Huang, Ziqiang Chen, Shiyao Zhou
Summary: The paper proposes a heating method based on model prediction to support the operation of battery pack in low temperature, and experimental results demonstrate its effectiveness and energy efficiency.
Article
Energy & Fuels
Mengyi Wang, Weifeng Hu, Yanfang Jiang, Fang Su, Zheng Fang
Summary: In this paper, a method for predicting internal temperature of a ternary polymer lithium-ion battery pack based on convolutional neural networks (CNN) and virtual thermal sensor (VTS) was proposed. The results showed that the proposed method can accurately predict real-time temperature with the MSE as 0.047, without requiring any knowledge of battery thermal properties, heat generation, or thermal boundary conditions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Thermodynamics
Ugur Morali
Summary: Lithium-ion batteries are important technologies for improving energy storage. This study investigates the effects of ambient temperature, discharge rate, depth-of-discharge, and convective heat transfer coefficient on the maximum battery temperature and maximum battery temperature difference. The results show that the ambient temperature has the greatest influence on the battery temperature, while the depth-of-discharge has negligible effect. The maximum battery temperature difference is mainly determined by the discharge rate and the convective heat transfer coefficient.
Article
Thermodynamics
Qin Le, Qianlei Shi, Qian Liu, Xiaole Yao, Xing Ju, Chao Xu
Summary: Thermal management is crucial for lithium-ion batteries due to their heat generation during high-rate charging and discharging. This paper presents a novel manifold immersion (MI) cooling structure inspired by the microchannel structure for chip cooling. Numerical simulation models are used for optimization analysis. The results reveal that the MI cooling structure requires high heat transfer on the lateral surface of batteries rather than the bottom or baffle surface. The cooling capacity is greatly influenced by design parameters such as manifold channel length and battery spacing channel width. Stable wall jet flows contribute to better thermal load and temperature uniformities. The optimized MI cooling structure achieves a maximum temperature of 35.06 degrees C with good temperature uniformity for a lithium-ion battery pack.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Energy & Fuels
Ugur Morali
Summary: This article presents the thermal behavior of a lithium-ion battery under different operating conditions, combining computational modeling and statistical analysis. The study evaluates the effects of various parameters on the maximum battery temperature and temperature difference, with discharge current rate being the most significant factor.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Zhizuan Zhou, Xiaodong Zhou, Bei Cao, Lizhong Yang, K. M. Liew
Summary: This research investigates the impact of heating temperature on the thermal runaway (TR) of lithium-ion batteries (LIBs). It is found that TR occurs when the heating temperature exceeds 200 degrees Celsius, while only safety venting is observed at 175 degrees Celsius. As the heating temperature increases, the time interval between safety venting and TR decreases, and the temperature difference within the battery decreases. Additionally, the contribution of self-generated heat to trigger TR at different heating temperatures is identified.
Article
Energy & Fuels
Zhizuan Zhou, Xiaodong Zhou, Maoyu Li, Bei Cao, K. M. Liew, Lizhong Yang
Summary: This study investigates the propagation of thermal runaway in large-format battery modules and identifies the effects of thermal insulation and phase change material on inhibition mechanism. It was found that inserting aerogel can effectively inhibit the propagation, but leads to thermal energy accumulation. The combination of aerogel and PCM not only improves prevention performance but also enhances heat dissipation capacity.
Article
Chemistry, Physical
S. Ludwig, I Zilberman, A. Oberbauer, M. Rogge, M. Fischer, M. Rehm, A. Jossen
Summary: This paper investigates the influence of aging on temperature estimation methods for lithium-ion cells and proposes an effective method to compensate for aging effects, leading to stable temperature estimation.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Luyao Zhao, Minxue Zheng, Junming Zhang, Hong Liu, Wei Li, Mingyi Chen
Summary: Thermal runaway, caused by lithium plating in low-temperature cycling LIBs, is a significant hazard that hinders the application of LIBs in electric vehicles and energy storage systems. This study developed a thermal runaway model that includes the exothermic reaction between metal lithium and electrolyte to account for the aging effect. Validation tests confirmed the effectiveness of the model. The results revealed a three-stage process for thermal runaway and demonstrated that the reaction between plated lithium and electrolyte at around 140 degrees C accelerates the onset of thermal runaway.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Wenhe Wang, Tengfei He, Sen He, Tianyu You, Faisal Khan
Summary: The study demonstrates that increasing battery spacing and triggering temperature can reduce the risk of thermal runaway propagation in lithium-ion battery modules and change the sequence of propagation; furthermore, the propagation speed can be inhibited by increasing triggering temperature and battery spacing, and decreasing the charging C-rate.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Environmental
Huixing Meng, Qiaoqiao Yang, Enrico Zio, Jinduo Xing
Summary: In this paper, a methodology for dynamic risk prediction of thermal runaway in lithium-ion batteries is proposed, which integrates fault tree, dynamic Bayesian network, and support vector regression. The proposed methodology can be used for risk early warning of thermal runaway in lithium-ion batteries.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Energy & Fuels
Huichun Zhao, Xinran Wang, Ying Bai, Huifen Jin, Jiang Zhou, Guoqiang Tan, Chuan Wu
Summary: This paper presents research on the thermal behavior of high-energy LiNi0.8Co0.15Al0.05O2//Si-C pouch battery under different current rates and ambient temperatures. By using electrochemical calorimetry and finite element analysis, the heat generation rate and temperature distribution of the battery are calculated. The results show that the temperature gradient of the battery increases with the discharge rate, and the simulation results are consistent with experimental measurements.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
Jie Chen, Dongsheng Ren, Hungjen Hsu, Li Wang, Xiangming He, Caiping Zhang, Xuning Feng, Minggao Ouyang
Summary: Accurate measurement of the characteristic temperatures of thermal runaway in lithium-ion batteries is crucial for safety evaluation. A one-dimensional thermal resistance network model was developed to study the factors influencing thermal runaway features, revealing significant effects of test conditions, thermocouple positions, and battery thickness.
Review
Thermodynamics
Xinghui Zhang, Zhao Li, Lingai Luo, Yilin Fan, Zhengyu Du
Summary: Electric vehicles powered by lithium-ion batteries have great potential in alleviating energy and environmental issues, but temperature management is crucial for their development and propagation. Both high and low temperature environments can negatively impact battery performance and safety, requiring proper handling.
Article
Chemistry, Physical
Abubakar Gambo Mohammed, Karem Elsayed Elfeky, Qiuwang Wang
Summary: The study shows that arranging PCMs with a lower melting temperature at the midsection and a higher melting temperature at the air outlet region of the heat sinks can reduce the standard deviation of temperature and the maximum temperature of the batteries.
JOURNAL OF POWER SOURCES
(2021)
Article
Thermodynamics
Hai Zhao, Puzhen Gao, Xiaochang Li, Ruifeng Tian, Hongyang Wei, Sichao Tan
Summary: This study numerically investigates the interaction between flow-induced vibration and forced convection heat transfer in a tube bundle. The results show that the impact of flow-induced vibration on heat transfer varies in different flow velocity regions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rohit Chintala, Jon Winkler, Sugirdhalakshmi Ramaraj, Xin Jin
Summary: The current state of fault detection and diagnosis for residential air-conditioning systems is expensive and not suitable for widespread implementation. This paper proposes a cost-effective solution by introducing an automated fault detection algorithm as a screening step before more expensive tests can be conducted. The algorithm uses home thermostats and local weather information to identify thermodynamic parameters and detect high-impact air-conditioning faults.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
A. Azimi, N. Basiri, M. Eslami
Summary: This paper presents a novel optimization algorithm for improving the water-film cooling system of photovoltaic panels, resulting in a significant increase in net energy generation.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Duc-Thuan Phung, Chin-Hsiang Cheng
Summary: In this study, a novel CFDMD model is used to analyze and investigate the behavior of thermal-lag engines (TLE). The study shows that the CFDMD model effectively captures the thermodynamic behavior of the working gas and the dynamic behavior of the engine mechanism. Additionally, the study explores the temporal evolution of engine speed and the influence of various parameters on shaft power and brake thermal efficiency. The research also reveals the existence of a thermal-lag phenomenon in TLE.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Haiying Yang, Yinjie Shen, Lin Li, Yichen Pan, Ping Yang
Summary: The purpose of this article is to find a measure to improve the interfacial thermal transfer of graphene/silicon heterojunction. Through molecular dynamics simulation, it is found that surface modification can significantly reduce the thermal resistance, thereby improving the thermal conductivity of the graphene/silicon interface.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Qiong Wu, Yancheng Wang, Haonan Zhou, Xingye Qiu, Deqing Mei
Summary: This article introduces a visible methanol steam reforming microreactor, which uses an optical crystal as an observation window and measures the reaction temperature in real-time using infrared thermography. The results show that under lower oxygen to carbon ratio conditions, the microreactor has a higher heating rate and a stable gradient in temperature distribution.
APPLIED THERMAL ENGINEERING
(2024)
Review
Thermodynamics
Giulia Manco, Umberto Tesio, Elisa Guelpa, Vittorio Verda
Summary: In the past decade, there has been a growing interest in studying energy systems for the combined management of power vectors. Most of the published works focus on finding the optimal design and operations of Multi Energy Systems (MES). However, for newcomers to this field, understanding how to achieve the desired optimization details while controlling computational expenses can be challenging and time-consuming. This paper presents a novel approach to analyzing the existing literature on MES, with the aim of guiding practical development of MES optimization. Through the discussion of six case studies, the authors provide a mathematical formulation as a reference for building the model and emphasize the impact of different aspects on the problem nature and solver selection. In addition, the paper also discusses the different approaches used in the literature for incorporating thermal networks and storage in the optimization of multi-energy systems.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xuepeng Yuan, Caiman Yan, Yunxian Huang, Yong Tang, Shiwei Zhang, Gong Chen
Summary: In this study, a multi-scale microgroove wick (MSMGW) was developed by laser irradiation, which demonstrated superior capillary performance. The surface morphology and performance of the wick were affected by laser scan pitch, laser power, repetition frequency, and scanning speed. The MSMGW showed optimal capillary performance in alumina material and DI water as the working fluid.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Maofei Mei, Feng Hu, Chong Han
Summary: This paper proposes an effective local search method based on detection of droplet boundaries for understanding the dynamic process of droplet growth during dropwise condensation. The method is validated by comparing with experimental data. The present simulation provides an effective approach to more accurately predict the nucleation site density in future studies.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Rahul Kumar Sharma, Ashish Kumar, Dibakar Rakshit
Summary: The study explores the use of phase change materials (PCM) as a retrofit with Heating Ventilation and Air-conditioning systems (HVAC) to reduce energy consumption and improve air quality. By incorporating PCM with specific thickness and fin configurations, significant energy savings can be achieved in comparison to standard HVAC systems utilizing R134a. This research provides policymakers with energy-efficient and sustainable solutions for HVAC systems to combat climate change.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Zhenhua Ren, Xiangjin Meng, Xingang Qi, Hui Jin, Yunan Chen, Bin Chen, Liejin Guo
Summary: This paper investigates the heat transfer mechanism and factors influencing thermal radiation in the process of supercritical water gasification (SCWG) of coal, and proposes a comprehensive numerical model to simulate the process. Experimental validation results show that thermal radiation accounts for a significant proportion of the total heat exchange in the reactor and a large amount of radiant energy exists in the important spectral range of supercritical water. Enhancing radiative heat transfer can effectively increase the temperature of the reaction medium and the gasification rate.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Mauro Abela, Mauro Mameli, Sauro Filippeschi, Brent S. Taft
Summary: Pulsating Heat Pipes (PHP) are passive two-phase heat transfer devices with a simple structure and high heat transfer capabilities. The actual unpredictability of their dynamic behavior during startup and thermal crisis hinders their large-scale application. An experimental apparatus is designed to investigate these phenomena systematically. The results show that increasing the number of evaporator sections and condenser temperature improves the performance of PHP. The condenser temperature also affects the initial liquid phase distribution and startup time.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Ke Gan, Ruilian Li, Yi Zheng, Hui Xu, Ying Gao, Jiajie Qian, Ziming Wei, Bin Kong, Hong Zhang
Summary: A 3-dimensional enhanced heat pipe radiator has been developed to improve heat dissipation and temperature uniformity in cooling high-power electronic components. Experimental results show that the radiator has superior heat transfer performance compared to a conventional aluminum fin radiator under different heating powers and wind speed conditions.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xinyi Zhang, Shuzhong Wang, Daihui Jiang, Zhiqiang Wu
Summary: This study focuses on recovering waste heat from blast furnace slag using dry centrifugal pelletizing technology. A comprehensive two-dimensional model was developed to analyze heat transfer dynamics and investigate factors influencing heat exchange efficiency. The findings have important implications for optimizing waste heat recovery and ensuring safe operations.
APPLIED THERMAL ENGINEERING
(2024)
Article
Thermodynamics
Xincheng Wu, An Zou, Qiang Zhang, Zhaoguang Wang
Summary: The boosting heat generation rate of high-performance processors is challenging traditional cooling techniques. This study proposes a combined design of active jet intermittency and passive surface modification to enhance heat transfer.
APPLIED THERMAL ENGINEERING
(2024)