Review
Green & Sustainable Science & Technology
M. Aramesh, B. Shabani
Summary: This study provides a detailed review of the parameters affecting the thermophysical performance of PCM-MFs. It identifies the most effective parameters and investigates their possible effects. It also points out common observations and contradicting reports, and discusses the current gaps in the field and opportunities for further research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Energy & Fuels
Yanhu Chen, Zesheng Yao, Bingzhe Chen, Zhengzhao Liu, Canjun Yang
Summary: In this study, a numerical model for the phase change and energy conversion processes in ocean thermal energy (OTE) devices was established and validated through experimental observations. A parametric study was conducted, and the results showed that increasing the back pressure, adding copper foam with low porosity, and optimizing the inner diameter and back pressure can effectively improve the net power density of OTE devices. The proposed numerical model demonstrated a significant increase of 151.7% in net power density after optimization, indicating its value in engineering applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Thermodynamics
Zhen Qin, Zheng Hua Low, Chenzhen Ji, Fei Duan
Summary: This research aims to validate the effect of the inclined angle of metal fins on PCM melting and evaluate the efficacy of angled fins in enhancing PCM melting in the LHTES system. Experimental results show that the inclined fins significantly influence the temperature evolution of solid PCM around the fins. Different inclined angles of fins have varying effects on the PCM melting time, with downward inclined fins being the most effective in reducing the melting time.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Energy & Fuels
Nan Sheng, Yunfei Ge, Yunqi Guo, Chunyu Zhu, Zhonghao Rao
Summary: This study successfully fabricated Cu@Al2O3 macro-encapsulated metallic PCMs for high-temperature thermal storage. The macrocapsules consist of Cu core and Al2O3 ceramic shell, providing buffer spaces for thermal expansion and showing good durability.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Chemistry, Physical
Nan Sheng, Chunyu Zhu, Zhonghao Rao
Summary: The use of porous copper foams as supporting frameworks for PCM composites improved the thermal conductivity of paraffin significantly, with the continuous copper skeleton serving as a heat transfer path. This enhancement in heat transfer properties can strengthen the application of PCM composites in solar thermal harvesting and thermal management.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Hafiz Muhammad Ali
Summary: Phase change materials have low thermal conductivity, which limits their heat transfer rates. This study integrated copper foam and heat pipe with phase change material to improve its thermal conductivity and analyzed the cooling performance of the heat sink. The results showed that hybrid cooling with PCM-Cu Foam-HP configuration performed the best.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Qifan Ying, Hui Wang, Yongfa Diao, Hengxue Xiang
Summary: This paper presents a novel approach of altering the container shape to enhance the heat storage effectiveness in Latent Heat Thermal Energy Storage (LHTES) systems. Numerical simulations show that reducing the hard-to-melt bottom region can improve the heat storage performance. Additionally, a cooperative optimization matching strategy between metal foam porosity and shape is obtained, which can further reduce the melting time.
APPLIED THERMAL ENGINEERING
(2023)
Review
Energy & Fuels
P. Das, S. P. Kar, R. K. Sarangi
Summary: This article presents a detailed investigation into the use of different Phase Change Materials (PCM) in Thermal Energy Storage (TES) devices, specifically heat exchangers. The performance of different heat exchanger designs using various PCMs is analyzed, highlighting the differences in geometry and performance. The study also discusses the importance of different performance enhancement methods and parameters in improving heat transfer. A novel heat exchanger design using PCM is introduced as an efficient TES unit, and quantitative analysis of melting, solidification, charging, and discharging times is reviewed.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Review
Energy & Fuels
Mohamad Aramesh, Bahman Shabani
Summary: This article reviews experimental studies on PCM-MF composites, comparing the heat transfer and heat storage capabilities of the composites with pure PCMs. The conduction and convection heat transfer mechanisms inside the composites are investigated in detail. Methods for measuring and calculating different thermophysical properties of the composites are discussed, and suggestions for further studies are provided.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Construction & Building Technology
Pengfei Wei, Guansheng Yin, Minghui Shi, Wanqi Zhang, Jintao Zhang, Wenqian Hao, Junjie Feng
Summary: This experimental study developed a phase change foamed concrete (PCFC) with suitable temperature regulation and heat storage capabilities. The optimum mass ratio of LA to HD in the binary eutectic is 53:47, and the maximum adsorption ratio of fumed silica for LA-HD is 60% (wt). The PCFC with 30% composite PCM exhibits the best thermal properties and temperature regulation performance.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Review
Green & Sustainable Science & Technology
Wei Cui, Tianyu Si, Xiangxuan Li, Xinyi Li, Lin Lu, Ting Ma, Qiuwang Wang
Summary: Phase change materials (PCMs) have the potential to improve the utilization efficiency of the latent heat thermal energy storage (LHTES) system, but their relatively low thermal conductivity results in an undesirable thermal response rate. The use of metal foam (MF) as an effective strategy to enhance the heat transfer performance of PCMs has gained attention. However, there is still a lack of discussion on the limitations and situations of known technologies. In this review, a total of 476 literature since 2000 are analyzed using scientometric analysis to highlight the key areas and new trends. The factors influencing the heat transfer performance of PCMs embedded with MF (PCMs/MF) are presented in-depth, and the developments of hybrid heat transfer enhancement techniques based on MF are comprehensively overviewed. Furthermore, the systematic information on PCMs/MF in typical applications is summarized, and the suitability of these technologies is discussed. Challenges and opportunities for further research work on PCMs/MF are also identified and discussed.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Thermodynamics
Renlang Feng, Peifeng Huang, Ziyi Tang, Yanyun He, Zhonghao Bai
Summary: The paper presents a comprehensive study and optimization design of a hybrid cooling system combining composite PCM and flat heat pipe. The experimental results show that the hybrid system can effectively control temperature rise and improve temperature uniformity. The flat heat pipe is found to provide excellent heat dissipation for the composite PCM, reducing the maximum temperature by 10 degrees Celsius.
ENERGY CONVERSION AND MANAGEMENT
(2022)
Article
Energy & Fuels
Chengzhi Zhao, Xingwei He, Nan Sheng, Chunyu Zhu
Summary: This study demonstrates the efficient fabrication of phase change composites (PCCs) with directional thermal conductivity and good form stability using vertically aligned carbon fibers as supporting scaffolds. The PCCs supported by porous carbon fiber scaffolds exhibit improved thermal transfer properties and shape stability, thanks to the vertically arranged hollow carbon fiber structure. The axial thermal conductivity of the PCCs is twice that of the lateral direction, and their high latent heat capacity, thermal cycling, and chemical stability make them promising for heat storage and thermal management applications.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Green & Sustainable Science & Technology
Sol Carolina Costa, Murat Kenisarin
Summary: This paper extensively reviews the thermophysical properties of metals and alloys as potential phase change materials for different temperature ranges. It includes fundamental properties and temperature-dependent properties, as well as potential applications and challenges of metallic phase change materials.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Energy & Fuels
Adeel Arshad, Mark Jabbal, Hamza Faraji, Pouyan Talebizadehsardari, Muhammad Anser Bashir, Yuying Yan
Summary: This study investigates the parametric investigation of a heat sink filled with different materials and parameters for effective passive thermal management of electronics. The addition of Cu nanoparticles and MF in the heat sink increased the rate of heat transfer and reduced the melting time.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Mahsa Taghavi, Swapnil Sharma, Vemuri Balakotaiah
Summary: This study investigates the natural convection effects in the insulation layers of spherical storage tanks and their impact on the tanks' performance. The permeability and Rayleigh number of the insulation material are considered as key factors. The results show that as the Rayleigh number increases, new convective cells emerge and cause the cold boundary to approach the external hot boundary. In the case of large temperature differences, multiple solutions may coexist.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Jinyang Xu, Fangjun Hong, Chaoyang Zhang
Summary: This study introduces a self-induced jet impingement device for enhancing pool boiling performance in high power electronic cooling. Through visualization and parametric investigations, the effects of this device on pool boiling performance are studied, revealing the promotion of additional liquid supply and vapor exhausting. The flow rate of the liquid jet is found to positively impact boiling performance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Wenchao Ke, Yuan Liu, Fissha Biruke Teshome, Zhi Zeng
Summary: Underwater wet laser welding (UWLW) is a promising and labor-saving repair technique. A thermal multi-phase flow model was developed to study the heat transfer, fluid dynamics, and phase transitions during UWLW. The results show that UWLW creates a water keyhole, making the welding environment similar to in air laser welding.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Xingrong Lian, Lin Tian, Zengyao Li, Xinpeng Zhao
Summary: This study investigates the heat transfer mechanisms in natural fiber-derived porous structures and finds that thermal radiation has a significant impact on the thermal conductivity in low-density regions, while natural convection rarely occurs. Insulation materials derived from micron-sized natural fibers can achieve minimum thermal conductivity at specific densities. Strategies to lower the thermal conductivity include increasing porosity and incorporating nanoscale pores using nanosize fibers.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Yasir A. Malik, Kilian Koebschall, Stephan Bansmer, Cameron Tropea, Jeanette Hussong, Philippe Villedieu
Summary: Ice crystal icing is a significant hazard in aviation, and accurate modeling of sticking efficiency is essential. In this study, icing wind tunnel experiments were conducted to quantify the volumetric liquid water fraction, sticking efficiency, and maximum thickness of ice layers. Two measurement techniques, calorimetry and capacitive measurements, were used to measure the liquid water content and distribution in the ice layers. The experiments showed that increasing wet bulb temperatures and substrate heat flux significantly increased sticking efficiency and maximum ice layer thickness.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Jinqi Hu, Tongtong Geng, Kun Wang, Yuanhong Fan, Chunhua Min, Hsien Chin Su
Summary: This study experimentally examined the heat dissipation of vibrating fans and demonstrated its inherent mechanism through numerical simulation. The results showed that the flow fields induced by the vibrating blades exhibited pulsating features and formed large-scale and small-scale vortical structures, significantly improving heat dissipation. The study also identified the impacts of different blade structures and developed a trapezoidal-folding blade, which effectively reduced the maximum temperature of the heat source and alleviated high-temperature failure crisis.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Dan-Dan Su, Xiao-Bin Li, Hong-Na Zhang, Feng-Chen Li
Summary: The boiling heat transfer of low-boiling-point working fluid is a common heat dissipation technology in electronic equipment cooling. This study analyzed the interfacial boiling behavior of R134a under different conditions and found that factors such as the initial thickness of the liquid film, solid-liquid interaction force, and initial temperature significantly affect the boiling mode and thermal resistance.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Jinyi Wu, Dongke Sun, Wei Chen, Zhenhua Chai
Summary: A unified lattice Boltzmann-phase field scheme is proposed to simulate dendrite growth of binary alloys in the presence of melt convection. The effects of various factors on the growth are investigated numerically, and the model is validated through comparisons and examinations.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Shaokun Ge, Ya Ni, Fubao Zhou, Wangzhaonan Shen, Jia Li, Fengqi Guo, Bobo Shi
Summary: This study investigated the temperature distribution of main cables in a suspension bridge during fire scenarios and proposed a prediction model for the maximum temperature of cables in different lane fires. The results showed that vehicle fires in the emergency lane posed a greater thermal threat to the cables.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Shuang-Ying Wu, Shi-Yao Zhou, Lan Xiao, Jia Luo
Summary: This paper investigates the two-phase flow and heat transfer characteristics of low-velocity jet impacting on a cylindrical surface. The study reveals that the heat transfer regimes are non-phase transition and nucleate boiling with the increase of heat transfer rate. The effects of jet impact height and outlet velocity on local surface temperatures are pronounced at the non-phase transition stage. The growth rates of heat transfer rate and liquid loss rate increase significantly from the non-phase transition to nucleate boiling stage.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Emad Hasani Malekshah, Wlodzimierz Wlodzimierz, Miros law Majkut
Summary: Cavitation has significant practical importance and can be controlled by air injection. This study investigates the natural to ventilated cavitation process around a hydrofoil through numerical and experimental methods. The results show that the location and rate of air injection have a meaningful impact on the characteristics of cavitation.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Feriel Yahiat, Pascale Bouvier, Antoine Beauvillier, Serge Russeil, Christophe Andre, Daniel Bougeard
Summary: This study explores the enhancement of mixing performance in laminar flow equipment by investigating the generation of chaotic advection using wall deformations in annular geometries. The findings demonstrate that the combined geometry can achieve perfect mixing at various Reynolds numbers.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Hui He, Ning Lyu, Caihua Liang, Feng Wang, Xiaosong Zhang
Summary: This study investigates the condensation, frosting, and defrosting processes on superhydrophobic surfaces with millimeter-scale structures. The results reveal that the structures can influence the growth and removal of frost crystals, with the bottom grooves creating a frost-free zone and conical edges promoting higher frost crystal heights. Two effective methods for defrosting are observed: hand-lifting the groove and airfoil retraction contraction on protruding structures. This research provides valuable insights into frost formation and defrosting on millimeter-structured superhydrophobic surfaces, with potential applications in anti-frost engineering.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Thiwanka Arepolage, Christophe Verdy, Thibaut Sylvestre, Aymeric Leray, Sebastien Euphrasie
Summary: This study developed two thermal concentrators, one with a 2D design of uniform thickness and another with a 3D design, using the coordinate transformation technique and metamaterials. By structuring the thermal conductor, the desired local density-heat capacity product and anisotropic thermal conductivities were achieved. The homogenized thermal conductivities were obtained from finite element simulations and cylindrical symmetry consideration. A 3D concentrator was fabricated using 3D metal printing and characterized using a thermal camera. Compared to devices that solely consider anisotropic conductivities, the time evolution characteristics of the metadevice designed with coordinate transformation were closer to those of an ideal concentrator.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Liangyuan Cheng, Qingyang Wang, Jinliang Xu
Summary: In this study, we investigated the supercritical heat transfer of CO2 in a horizontal tube with a diameter of 10.0 mm, covering a wide range of pressures, mass fluxes, and heat fluxes. The study revealed a non-monotonic increase in wall temperatures along the flow direction and observed both positive and negative wall temperature differences between the bottom and top tube. The findings were explained by the thermal conduction in the solid wall interacting with the stratified-wavy flow in the tube.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)