Article
Thermodynamics
Jiekai Xie, Xiangyun Liu, Guoqing Zhang, Xiaoqing Yang
Summary: This study focuses on optimizing the internal structure of liquid cooling plates (LCPs) to enhance their cooling performance. By introducing splitters with different numbers and patterns into LCP flow channels, it is found that increasing the splitter numbers effectively reduces temperature and temperature difference. The double-side pattern with a splitter number of 20-30 shows the best cooling effect for battery modules.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Energy & Fuels
Xu Fan, Chao Meng, Yawen Yang, Jiashen Lin, Wanyou Li, Yingru Zhao, Shan Xie, Chenxing Jiang
Summary: Four liquid cooling plates with bionic fishbone channels were designed to address the thermal issues of high temperature rise and non-uniform temperature distribution in large prismatic lithium-ion battery packs during high-rate discharge. The single inlet and double outlet symmetric bionic fishbone channel (D2) liquid-cooled plate exhibited the best cooling performance and outperformed the previous Z-type liquid cooling plate. Orthogonal experiments were conducted to study the influences of the D2 liquid-cooled plate structure and mass flow rates on the cooling performance of the battery thermal management system (BTMS). The optimal structure's parameter combinations were determined, resulting in decreased maximum temperature, temperature difference, and pressure drop compared to the initial structure of the D2 liquid-cooled plate.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Qianqian Xin, Tianqi Yang, Hengyun Zhang, Jiaxing Yang, Juan Zeng, Jinsheng Xiao
Summary: An efficient battery thermal management system is developed to control the battery temperature and prevent thermal runaway. The specific heat capacity and heat generation rate of a large-capacity battery are determined using the calibration calorimetry method. Three different thermal management systems are proposed, and Case 3, which combines composite phase change material (CPCM) with liquid cooling, exhibits the lowest maximum temperature of the battery module. Various parameters, including CPCM thickness, coolant velocity, ambient temperature, and discharge rate, are studied to optimize the thermal performance of Case 3. The results demonstrate that Case 3 effectively controls the maximum temperature and temperature difference of the battery module, enhancing the thermal safety of batteries.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Yuqi Huang, Caifeng Wei, Yidong Fang
Summary: This paper investigates the impact of structural optimization of the cooling plate on the temperature distribution uniformity of the battery pack in the liquid-cooled system of electrical vehicle. Numerical analysis and experimental validation are conducted to propose and analyze three structural design schemes. The results demonstrate that the temperature distribution uniformity of the battery pack can be effectively improved after the structural optimization of the cooling plate. This optimization method can serve as a reference for the structural design of the cooling plate.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Qian Liu, Le Qin, Qianlei Shi, Xiaole Yao, Chao Xu, Xing Ju
Summary: This paper investigates a self-organized fluid flow design for immersion cooling, which effectively improves the thermal performance of batteries. By applying an interdigitated manifold system and checkerboard topology, the flow distribution of immersion cooling is further enhanced.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Orhan Kalkan, Ali Celen, Kadir Bakirci
Summary: The thermal performance of a LiFePO4 pouch type battery under different discharge rates was experimentally and numerically investigated. It was found that natural convection cooling is not sufficient for the battery at high discharge rates.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Ding Zhao, Chao An, Zhiguo Lei
Summary: Battery thermal management system (BTMS) maintains optimal temperature and temperature difference of Lithium-ion batteries (LiBs). This paper proposes three kinds of liquid cooling plates with mesh structures (LCP-MSs) and compares them with LCP with straight channel (LCP-SC). Results show that LCP-MSs effectively improve temperature uniformity and reduce heat concentration. Among the proposed LCP-MSs, LCP with drop-shaped deflectors (LCP-DD) stands out in reducing pressure drop (AP) of coolant. Cooling performance between LCP-DD and the other LCP-MSs is similar. Additionally, the study investigates the influence of structural parameters, number of deflectors, layout of deflectors, and inlet velocity on the cooling performance and AP of LCP-DD. An orthogonal test is carried out to optimize the design, achieving control of maximum temperature, maximum temperature difference, and pressure drop at 301.3 K, 3.1 K, and 251 Pa, respectively.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Optics
Jirong Wang, Yu Zheng, Xinjie Zou, Yanbing Zhao, Jianzhe Liu, Xiang Jiang, Ji'an Duan
Summary: This paper presents a design and optimization method for a non-uniform 1 x 5 PLC splitter, and sensitivity analysis of the device performance towards various structure dimensions using the orthogonal experimental method. The measurement results show that the adopted design method has convenient practicality and advanced efficiency.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Thermodynamics
Hui Fu, Junling Wang, Lun Li, Junhui Gong, Xuan Wang
Summary: This study investigates the numerical simulation of thermal runaway propagation (TRP) in a lithium-ion battery pack and the use of liquid cooling cold plates to suppress TRP. The results show that using cold plates with higher coolant flow velocities can completely suppress TRP, while lower velocities can only partially inhibit TRP. The study also quantitatively examines the heat loss to coolant and its ratio to total released heat, and identifies the critical condition for suppressing TRP.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Chemical
Haiji Chen, Awatef Abidi, S. Mohammad Sajadi, Yanjie Yuan, Hikmet S. Aybar, Behzad Heidarshenas
Summary: This paper simulates a lithium-ion battery pack with cylindrical and plate batteries in an air duct. The effects of various splitter damper settings on the BRK temperature and heat transfer coefficient have been investigated through simulations. The results show that the temperature distribution and heat transfer performance vary with the shape and length of the splitter damper.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Construction & Building Technology
Mei Wang, Mingli Geng, Lang Liu, Yu Wang, Shiyue Shang, Guoming Wen
Summary: With the deepening of mining operations, the high thermal environment caused by rising rock temperature poses a major obstacle to the safe and efficient mining of deep mineral resources. Cold load and storage (CLS) functional cemented paste backfill (CPB) combined with radiant cooling is an innovative method that can effectively address this issue.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Energy & Fuels
Shuai Liu, Yan Liu, Huichao Gu, Ruofei Tian, Haizhen Huang, Tianming Yu
Summary: This study constructs a nanofluid-based experimental system for power battery liquid cooling and investigates the cooling performance of different nanofluid concentrations and inlet flow rates at different discharge rates and discharge times. The results show that the cooling performance of nanofluids is obvious at low discharge rates and low flow rates, but deteriorates severely at high flow rates. High discharge rates and high temperatures have limited improvement on the cooling performance of nanofluids. The optimal working conditions are determined as 1C discharge for 60 minutes, 0.9 L/min flow rate, and 0.1%, 1%, and 2% of γ-Al2O3/heat transfer fluid nanofluid, which can reduce the battery module temperature and improve cooling performance. This work provides guidance for the practical application of nanofluids in battery thermal management systems.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Sihao Qian, Chaoliu Ge, Shunxi Lou, Yiqun Zhang, Guanheng Fan, Wei Wang
Summary: This paper proposes an optimization design approach to address the heat dissipation problem of the transmitting antenna in a microwave power transmission system. The approach includes characteristic analysis, simulation analysis, orthogonal experimental design, and optimization, which significantly improve the heat dissipation performance of the transmitting antenna.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Ahmed Hussien, Abdelgalil Eltayesh, Hesham M. El-Batsh
Summary: PV panels are cooled by forced convection using different cooling methods, including small backside fans and blowers. Computational fluid dynamics (CFD) is used to analyze the cooling airflow characteristics and panel temperature distribution. Experimental measurements show that using small backside fans can significantly enhance the performance of PV panels with a maximum total increase of 2.1% in efficiency and 7.9% energy saving.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Construction & Building Technology
Mei Wang, Yu Wang, Lang Liu, Mingli Geng, Xueli Wang, Luyang Qiu
Summary: Based on the similarity theory, this paper conducts a dimensionless analysis of air flow and selects Archimedes number as the similarity criterion to study the cooling effect of mine cold storage backfill under ventilation environment. Both similarity experiment and CFD numerical simulation are used to study the influence of different cooling methods and air supply conditions on the temperature distribution of stope. The results show that cold storage backfill is an effective method to control the temperature in stopes, and the downward backfill method is superior in terms of cooling temperature and duration.
JOURNAL OF BUILDING ENGINEERING
(2023)
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)