Article
Energy & Fuels
Tingting Wu, Changhong Wang, Yanxin Hu, Xianbo Fan, Changxiang Fan
Summary: This article theoretically analyzes the heat transfer performance of spray cooling technology to achieve a balance between temperature uniformity and compactness of the battery module. The main factors affecting spray cooling's heat transfer performance are discussed. Experimental results show that spray cooling can achieve higher heat transfer coefficients, provide lower temperature rise, and more uniform temperature distribution, making it an efficient approach for managing heat accumulation in battery modules.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Energy & Fuels
Tianshi Zhang, Ziming Mo, Xiaoyu Xu, Xiaoyan Liu, Haopeng Chen, Zhiwu Han, Yuying Yan, Yingai Jin
Summary: This paper systematically reviews the progress of spray cooling, including its thermal dissipation mechanism, influencing factors, and application research. The article highlights the wide range of applications of spray cooling in fields such as electronics and aerospace.
Article
Energy & Fuels
Zhuoxuan Fan, Yanan Wang, Zongfa Xie, Zhengkun Wang
Summary: The research indicates that spray cooling in battery thermal management systems can effectively reduce the maximum temperature and temperature difference of lithium-ion cells, and system performance can be optimized by adjusting parameters such as spray speed and mass flow rate.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Thermodynamics
Sameer Khandekar, Gopinath Sahu, K. Muralidhar, Elizaveta Ya Gatapova, Oleg A. Kabov, Run Hu, Xiaobing Luo, Liang Zhao
Summary: LEDs are popular for their wide applicability, but high-power LEDs bring challenges in heat management. Liquid jets and sprays are potential solutions for thermal management, with liquid sprays posing challenges in flow parameter management and transport physics.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
Isares Dhuchakallaya, Patcharin Saechan
Summary: In order to achieve the desired voltage and power capacity in electric vehicles (EVs), battery cells are densely interconnected to form modules. Excessive heat generated by chemical reactions and internal resistance can impact the performance of the batteries. This study proposes a novel cooling system using a non-electrically conductive liquid spray combined with forced air to effectively decrease the maximum temperature and temperature difference within the battery module, providing valuable insights for the development of thermal management solutions for EVs.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
P. Navarro, J. Ruiz, A. S. Kaiser, M. Lucas
Summary: This paper focuses on the experimental optimization of the thermal performance of a new prototype of a forced, mechanical-draft, wet, inverted cooling tower. The effects of fill length and nozzle arrangement on the tower's operation were investigated. The results show that the upper manifold performs better than the intermediate and lower manifolds, and the fill length of 1.6 m provides the best performance.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Electrical & Electronic
Ki Mun Bang, Woosung Park, Pawel Ziolkowski, Hyungyu Jin
Summary: Stretchable electronic devices face challenges in thermal conductivity and heat dissipation. Innovative cooling platforms are required to address the heat dissipation issue. Adding alumina powder into the materials can enhance cooling performance and improve energy efficiency.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Energy & Fuels
Ming Li, Shiming Ma, Hui Jin, Rujin Wang, Yan Jiang
Summary: This paper designed different types of liquid cooling thermal management systems for a battery module composed of 12 prismatic LiFePO4 batteries. Computational fluid dynamics simulation was used as the main research tool, and a parameter was proposed to evaluate the performance of the cold plate. The study found that the maximum temperature of the battery module could be controlled at 303.6 K and the maximum temperature difference between the batteries at 2.3 K under specific conditions.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Rekabra Youssef, Md Sazzad Hosen, Jiacheng He, Joris Jaguemont, Lysander De Sutter, Joeri Van Mierlo, Maitane Berecibar
Summary: This study introduces a battery thermal management strategy using jute fiber as a cooling medium, which improves air cooling efficiency, temperature uniformity, and reduces equipment and weight. Experimental results support the effectiveness of this approach in enhancing battery thermal behavior.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Peng Qin, Zhuangzhuang Jia, Kaiqiang Jin, Qiangling Duan, Jinhua Sun, Qingsong Wang
Summary: The novel integrated system utilizes C6F12O spray cooling for battery thermal management and rapid cooling, effectively reducing the occurrence of thermal runaway and improving heat dissipation efficiency.
JOURNAL OF POWER SOURCES
(2021)
Article
Thermodynamics
Hongji Shen, Yicheng Huang, Huifang Kang, Jun Shen, Jianrong Yu, Jihong Zhang, Zhenxing Li
Summary: This study proposes three new cooling modes for fuel cells and simulates their effects on temperature, substance concentration distributions, and performance. The results show that the cooling modes of reverse flow cooling of the adjacent channel (Model C) and bidirectional circulation cooling (Model D) are effective in improving temperature distribution, power density, and efficiency of the fuel cell.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Ying Zhang, Chao Li, Minqiang Pan
Summary: This study introduces the concept of an integrated indirect liquid cooling system for edge data center servers. The impact of this system on heat dissipation performance was investigated through experiments and numerical simulations. The results indicate that increasing the flow rate improves heat dissipation performance, but excessive flow rate slows down this improvement. Higher coolant temperatures also reduce the system's heat dissipation performance. Additionally, the feasibility of an external cooling system server was confirmed through numerical simulations.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Energy & Fuels
Furen Zhang, Peiwen Liu, Yanxiao He, Shiyuan Li
Summary: This paper proposes a comprehensive optimization scheme to improve the cooling performance of battery thermal management systems (BTMS) by adding secondary outlets and baffles. The influences of the number and width of secondary outlets and baffles on cooling performance were investigated using computational fluid dynamics (CFD) and validated through experimental tests. The results demonstrate significant reductions in maximum temperature and maximum temperature difference after optimization, indicating the effectiveness of the proposed method in designing BTMS for electric vehicles.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Dwijendra Dubey, A. Mishra, Subrata Ghosh, M. V. Reddy, Ramesh Pandey
Summary: Battery geometry plays an important role in determining battery capacity and thermal behavior. This study investigates the changes in thermal behavior of lithium-ion batteries by altering the geometry, specifically the length to diameter ratio. Three different geometries, large (LG), datum (DG), and small (SG), with l/d ratios of 5.25, 3.61, and 2.38 respectively, are considered. A 3D thermal model is used and numerical results are validated against experimental data. Average battery temperature and temperature heterogeneity are thoroughly examined for three different cooling approaches, and it is found that DG exhibits the lowest average temperature, LG has the lowest radial temperature heterogeneity, and SG has a faster cooling rate.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Chemical
Bing Shu, Maria Skyllas-Kazacos, Jie Bao, Ke Meng
Summary: The integration of industrial batteries with photovoltaic applications is a common practice to charge the batteries using solar energy. This study models and simulates the temperature dynamics of a containerised vanadium flow battery system under various battery operation time and load profiles, to identify the need for active cooling or heating to maintain safe operating temperatures.
Article
Energy & Fuels
Jiafeng Wang, Bin Chen
Summary: This study investigated the laser-melanosome interaction mechanism through a flow visualization experiment using a pigmented phantom. The results suggest that laser-induced bubble formation is the key mechanism, with an optimal energy density of 6 J/cm(2) recommended for treatment.
Article
Thermodynamics
Shangming Wang, Zhifu Zhou, Bin Chen, Panidis Thrassos, Alexandros Romeos, Athanasios Giannadakis
Summary: The heat transfer mechanism and cooling performance of R410A flashing spray cooling were studied in steady-state and varying operating conditions, with a focus on the effect of compressor frequency. It was found that the optimal cooling performance is achieved at a superheat between 4℃ and 22℃. Increasing the compressor frequency effectively improves the cooling performance of the spray system.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
Jiafeng Wang, Zhifu Zhou, Bin Chen, Tao Yang, Lu Zhang, Alexandros Romeos, Athanasios Giannadakis, Thrassos Panidis
Summary: Flashing spray occurs when a saturated liquid is discharged into a gaseous environment at a lower pressure, and the internal flow plays a crucial role in determining the behavior of the external flashing spray. In this study, the transient effect of iso-pentane working medium was investigated, specifically focusing on the combined effect of superheat level and injection pressure. Different stable spray patterns were observed under different injection pressures, ranging from non-shattering to completely shattering, and a correlation between the spray cone angle and the shattering index was proposed. In addition, the formation of high-void-fraction internal two-phase flow in partially shattering or completely shattering patterns led to a hysteretic flashing spray with significant changes in spray cone angle and droplet concentration.
Article
Biotechnology & Applied Microbiology
Panagiotis Parissis, Alexandros Romeos, Athanasios Giannadakis, Alexandros Kalarakis, Michail Peroulis
Summary: This research studied the hemodynamic field of an occluded artery with anastomosis by computational simulation. The main objective was to investigate the 3D flow field phenomena in the bypass region and the effect of the bypass graft to stenosis volume flow ratio. Different turbulence models were used and compared with experimental visualizations. The results showed that the SST k-omega turbulence model had better visual representation of flow patterns and demonstrated distinct flow patterns depending on the flow ratio.
BIOENGINEERING-BASEL
(2023)
Article
Energy & Fuels
Xinping Li, Nailiang Li, Xiang Lei, Ruotong Liu, Qiwei Fang, Bin Chen
Summary: An artificial neural network (ANN) was used to predict the pressure drop for air-water two-phase flow in pipeline systems with S-shaped and vertical risers at different inclinations. The ANN model was designed with input variables including the superficial velocity of gas and liquid as well as the inclination of the downcomer, and the output was the pressure drop values of two-phase flows. The developed ANN network with a hidden layer containing 14 neurons showed high accuracy in calculating the experimental pressure drop dataset, with a low average absolute percent error (AAPE) of 3.35% and a high determination coefficient (R-2) of 0.995.
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
Ecology
Vasiliki N. Papadogianni, Alexandros Romeos, Athanasios Giannadakis, Konstantinos Perrakis, Thrassos Panidis
Summary: This research aimed to investigate fire hazards in hidden areas of pressurized aircraft sections. It established a laboratory-scale flammability test method to predict fire propagation behavior under real fire conditions. A confined fire apparatus (CFA) was designed and constructed to conduct experiments, and the flame spreading results of a typical material (ceiling panel) involved in hidden-zone fires were presented and discussed.
Article
Thermodynamics
Shangming Wang, Zhifu Zhou, Xuehao Sang, Bin Chen, Alexandros Romeos, Athanasios Giannadakis, Panidis Thrassos
Summary: Spray cooling is a promising thermal management technology for high-power electronic devices due to its high critical heat flux and heat transfer coefficient. This study investigates the effects of spray and system parameters on heat transfer enhancement using R410A. The results show that the optimal subcooling degree and nozzle diameter can achieve the best cooling performance. Mechanism of heat transfer enhancement by square pin finned surface is revealed in terms of droplet splashing, which further improves the cooling performance.
