Article
Engineering, Manufacturing
Yueqi Cao, Xiaojing Xu, Zheng Qin, Chong He, Liwen Yan, Feng Hou, Jiachen Liu, Anran Guo
Summary: In this study, vat photopolymerization 3D printing was used to prepare highly complex Mu(f)-based porous ceramics. By adjusting the aspect ratio and content of mullite fiber, porous ceramics with low density and low thermal conductivity were obtained.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Civil
Ahmed Albarram, Qusay Al-Kaseasbeh
Summary: This study investigates the seismic performance of irregular cross-section of bridge piers, which has rarely been studied before. The findings show that concrete-filled corrugated-shaped piers have higher load-bearing capacity, ductility, and less severe damage compared to traditional circular-section columns. Therefore, implementing corrugated-shaped piers in structures is recommended to enhance strength, ductility, and failure control.
KSCE JOURNAL OF CIVIL ENGINEERING
(2023)
Article
Thermodynamics
Kyle S. Meaker, Ehsan Mofidipour, Matthew R. Jones, Brian D. Iverson
Summary: Spacecraft thermal control relies entirely on radiative heat transfer for temperature regulation. Current methods lack dynamic control and typically result in oversized radiators. A variable radiator that adjusts surface area can reduce unnecessary heat rejection. This study quantifies the emissivity of a corrugated surface and demonstrates its potential for improved radiator design and thermal control methods.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Materials Science, Multidisciplinary
Markus Heyer, Burkard Esser, Ali Guelhan, Barbara Milow, Pascal Voepel
Summary: This study presents a direct comparison of the thermal conductivity and stability of different silica-fiber-reinforced silica aerogels. The thermal performance under high-temperature exposure is evaluated through thermal propagation and stability. The results show that all tested aerogel materials outperform the high-temperature fiber-based insulation mat in terms of thermal protection.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Construction & Building Technology
Linjun Yan, Jingwei Zhang, Kui Luo
Summary: An innovative GFRP-concrete composite bridge prototype system is introduced in this paper, which improves the shear stability and bending stiffness of the structure. Through finite element simulation and experimental validation, further research on the influence of parameters dimension variation in corrugated webs girder composite system is needed.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Engineering, Environmental
He Huang, Can Wu, Shiqi Wu, Ruiqun Pan, Lianhua Yin, Xiangyu Jin, Yiwu Pan, Hebing Wang, Xiaojie Yan, Changqing Hong, Wenbo Han, Xinghong Zhang
Summary: Soft and thermostable materials are crucial for applications in aerospace, wearable materials, and artificial intelligence in harsh environments. In this study, a hydrogen-bonded polyimide/silicone aerogel was obtained with a rational microstructure design, exhibiting super-flexibility, low density, low shrinkage, superhydrophobicity, and excellent thermal stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Qingguo Chen, Zhonghua Zhang, Song Cheng, Hongda Yang, Zhihang Zhao, Zhanyi Wang
Summary: Nano-SiC filled epoxy resin-impregnated insulating paper (RIP) can improve the uneven radial electric field distribution of high-voltage direct-current (HVDC) dry bushing. Nano-SiC filled RIP has higher electrical conductivity and obvious nonlinear conductivity characteristics. The simulation results show that 5wt% nano-SiC concentration is the optimal doping concentration.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Physics, Applied
Rui Yang, Hao-ou Ruan, Si-di Fan, Kai-xuan Sun, Sheng-hui Wang, Xiang Yu, Fang-cheng Lu
Summary: In order to achieve the goal of net-zero carbon emission by 2050, the exploration of insulating material has become a core project in electrical equipment innovations. The rise of composites has enabled insulating materials to have more functions. Using coupling agents is an effective method to improve the compatibility of composites and enhance desired properties.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Engineering, Civil
Shengbo Shi, Yong Chen, Cunxi Dai, Jun Liang
Summary: This study focuses on the development of structurally integrated thermal protection systems (SITPS) for next generation aerospace vehicles, using an all-composite sandwich structure with corrugated core. Analytical and finite element models are developed to analyze heat transfer and surface ablation, with experimental validation confirming the accuracy of the proposed models for rapid preliminary design.
THIN-WALLED STRUCTURES
(2021)
Article
Materials Science, Ceramics
Federico Cernuschi, Justyna Kulczyk-Malecka, Xun Zhang, Franck Nozahic, Claude Estournes, Willem G. Sloof
Summary: This study investigated the thermal diffusivity and conductivity of dense and porous binary composites with insulating and conducting phases across the entire composition range. Experimental evaluation was performed on MoSi2 particles embedded in YPSZ through spark plasma sintering (SPS). Thermal diffusivity was measured using Flash Thermography (FT) and Laser Flash Analysis (LFA), and the thermal conductivity was determined based on heat capacity and density measurements. The volume fraction of the conducting phase was determined through X-ray map image analysis using scanning electron microscopy (SEM), while X-ray diffractometry (XRD) with Rietveld refinement determined the phases present and their density. The thermal diffusivity increased with increasing volume fraction of MoSi2. Porosity reduced the thermal diffusivity, but the effect diminished with high volume fractions of MoSi2. Modelling captured the thermal diffusivity as a function of MoSi2 volume fraction in YPSZ composites, accounting for porosity and the percolation of the conductive phase.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Engineering, Civil
Fanlei Kong, Pingming Huang, Bing Han, Xingzheng Wang, Chuanqi Liu
Summary: The paper experimentally studied corrugated steel-concrete composite bridge decks with perfobond ribs and modified clothoid shape shear connectors, finding that modified clothoid shape composite dowels have higher ultimate bearing capacity, shear stiffness, and ductility than perfobond ribs shear connectors.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Aerospace
Oleg M. Alifanov, Margarita O. Salosina, Sergey A. Budnik, Aleksey V. Nenarokomov
Summary: Highly porous open-cell carbon materials with low density, high rigidity, compressive strength and low thermal conductivity have great potential for high-temperature thermal insulation in space vehicles. The optimization of multilayer thermal protection systems can take into account the dependence of thermal properties on microstructure, including layer thickness, cell diameter, and porosity. The developed optimization method was verified by comparing with experimental data.
Article
Construction & Building Technology
Ali Omidi, Mehdi Jahangiri, Fatemeh Mohammadidehcheshmeh, Ali Mostafaeipour
Summary: High energy use in buildings in Iran contributes to climate change and urban air pollution. Using agricultural waste as thermal insulation is seen as a sustainable solution due to its low energy consumption, renewability, and abundance in the country. Studies show that utilizing agricultural waste like cork or straw can effectively reduce thermal bridge phenomena, optimizing building design for energy efficiency.
ENERGY AND BUILDINGS
(2021)
Review
Polymer Science
Jiahui Yan, Dechao Hu, Zhiqiang Wang, Wenshi Ma
Summary: Phase change materials (PCMs) are commonly used in thermal energy storage systems, but their low thermal conductivity and leakage issues have led to the development of shape-stabilized PCMs (SSPCMs). Recent advancements in microencapsulated PCMs and SSPCMs based on porous scaffolds have shown promise for potential applications in thermal energy storage, highlighting new possibilities in this research field.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Jianwei Li, Jun Lin, Yugen Wang, Wei Chu, Fei Liu, Bin Wang
Summary: In this work, cross-linked and rigid polyimide (PI) composite foams with low density, high mechanical strength, thermal stability, fire resistance, ultralow dielectric characteristics, and excellent wave transparency were successfully fabricated, making them attractive candidates for applications in the aviation and aerospace fields.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Engineering, Aerospace
Lingling Lu, Hongwei Song, Yiwei Wang, Chenguang Huang
CHINESE JOURNAL OF AERONAUTICS
(2019)
Article
Mechanics
Lingling Lu, Jie Le, Hongwei Song, Yabo Wang, Chenguang Huang
COMPOSITE STRUCTURES
(2019)
Article
Materials Science, Multidisciplinary
Xiaolin Dang, Xiaowei Yin, Xiaomeng Fan, Yuzhao Ma, Jiangtao Wang, Panfei Ju, Hongwei Song
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Lingling Lu, Yabo Wang, Jianquan Bi, Cheng Liu, Hongwei Song, Chenguang Huang
FRONTIERS IN MATERIALS
(2020)
Article
Engineering, Manufacturing
Wenfeng Liu, Hongwei Song, Chenguang Huang
ADDITIVE MANUFACTURING
(2020)
Article
Materials Science, Multidisciplinary
Zhe Wang, Jiangtao Wang, Hongwei Song, Wu Yuan, Yuwen Liu, Te Ma, Chenguang Huang
Summary: The laser ablation behaviors of C/SiC composites were studied in a hypersonic wind tunnel and compared to tests conducted under static air. The mass ablation rates increased by 4 to 9 times under hypersonic airflow, with significant differences in ablation morphologies observed. The accelerated ablation rate and distinctive ablation micro-morphologies were mainly attributed to strong mechanical erosion induced by the hypersonic airflow.
Article
Materials Science, Multidisciplinary
Weina Zhao, Te Ma, Hongwei Song, Wu Yuan, Ruixing Wang, Zhe Wang, Lingling Lu, Chenguang Huang
Summary: The ablation behaviors of laminated carbon fiber reinforced plastics (CFRP) under intense continuous wave laser in a supersonic wind tunnel were experimentally investigated, showing significantly higher ablation rates compared to other environments. The ablation morphology was classified into coupled ablation zone (CAZ) and downstream affected zone (DAZ), with thermal-fluid-solid analysis revealing distinctive contributions of different laser mechanisms at different positions of the ablation pit.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Engineering, Mechanical
Lingling Lu, Jiang Lai, Shihao Yang, H. W. Song, Lei Sun
Summary: A new baseline-free damage detection method is proposed in this study to detect crack damage in tube bundles subjected to cross-flow and nonlinear loose support. Two damage indexes based on structural vibration responses successfully identify the damage location and extent. The study shows that the flow pitch velocity, support conditions, and number of measure points have certain effects on the effectiveness of the method.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Manufacturing
Shuai Kang, Wenfeng Liu, Jiangtao Wang, Hongwei Song, Wu Yuan, Chenguang Huang
Summary: This paper proposes a pinned method to achieve adaptability and connectivity between the core and skins of curved sandwich structures with a 3D lattice core by releasing rotational degrees of freedom in the common node of the adjacent lattice cells. This method demonstrates advantages in self-adaption and fabrication of large-scale curved sandwich structures.
ADDITIVE MANUFACTURING
(2022)
Article
Mechanics
Peixin Yang, Wu Yuan, Hongwei Song, Chenguang Huang
Summary: In this study, an effective method to enhance the shear strength of low-strength fragile materials using composite lattice structures was proposed. Experimental results demonstrated that there is an interaction effect between the fragile material and the lattice, resulting in a significantly higher integrated shear strength. A theoretical model investigated the role of interfacial bonding between the lattice and the matrix in the reinforcement mechanism. Furthermore, the influence of geometrical parameters on the shear strength of the fragile material, such as topological configurations, relative densities, and cell size, was thoroughly discussed.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Wu Yuan, Jiangtao Wang, Ruixing Wang, Zhe Wang, Hongwei Song, Chenguang Huang
Summary: This study experimentally analyzes the performance of ablative material-filled sandwich structures under laser irradiation in a hypersonic wind tunnel. The results show that the laser resistance of these structures is substantially better than other structures, and the failure times are reduced in a transverse hypersonic airflow.
COMPOSITE STRUCTURES
(2022)
Article
Chemistry, Physical
Te Ma, Jiangtao Wang, Hongwei Song, Ruixing Wang, Wu Yuan
Summary: This study presents experimental and numerical investigations on the instant ablation behavior of laminated CFRP exposed to a CW laser in a supersonic wind tunnel. In situ observation measurement is conducted to examine the instant ablation behavior. The surface recession depth is calculated using PIV method, with the ply angle of laminated CFRP as reference. A coupled thermal-fluid-ablation numerical model considering mechanisms of oxidation, sublimation, and thermomechanical erosion is developed to solve the ablation-through problem of multilayer materials. The results show that the laser ablation depth is influenced by laser power density, airflow velocity, and airflow mode.
Article
Thermodynamics
Ruixing Wang, Zhe Wang, Te Ma, Wu Yuan, Yue Cui, Hongwei Song
Summary: When exposed to high-power laser irradiation and high-speed airflow, the composite structure exhibits localized ablation behavior and strong coupling effects. In this study, a coupled fluid-thermal-ablation model is developed to quantitatively investigate the localized coupling effects. A loosely coupled scheme with second order temporal accuracy is utilized to improve coupling efficiency, and a high-quality mesh reconstruction method is established to capture the moving boundary of the localized ablation pit with large deformation. The model is validated by simulating the laser ablation behavior of a C/SiC composite plate subjected to hypersonic airflow, and the predicted ablation pit profile shows good agreement with experimental results. Analytical results demonstrate that the evolution of localized asymmetric ablation pits induces a transition in the flow regime from closed pit flow to open pit flow, which significantly alters the localized flow characteristics and affects the sublimation and mechanical erosion rates of the C/SiC composite plate.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Mechanics
Wu Yuan, Wenfeng Liu, Hongwei Song, Chenguang Huang
Summary: This paper introduces a novel lattice material with controllable multi-stage crushing behavior and high specific energy absorption capacity. The theoretical model, compression experiments, and finite element modeling are used to validate the performance and analyze the influencing factors of the energy absorption behavior.
COMPOSITE STRUCTURES
(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)
