Article
Thermodynamics
Mustafa Yusuf Yazici, Mete Avci, Orhan Aydin, Adeel Arshad, Mark Jabbal
Summary: In this study, a new plate-fin geometry is proposed to improve the thermal performance of PCM-based heat sinks by changing the fin width ratio. The experimental results show that the proposed fin geometry can significantly enhance the cooling performance of the PCM-based heat sink.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Jiajie Jiang, Yuxiang Hong, Qing Li, Juan Du
Summary: This study compares the thermal management of photovoltaic panels with different shapes and counts of metal fins and cavity layouts. The findings indicate that fractal fins accelerate the melting of phase change materials and greatly reduce the PV temperature. A more optimal cavity size is determined through comparison. Increasing the fin count further decreases the PV panel temperature.
Article
Thermodynamics
Manal Hariss, Ayoub Gounni, Mustapha El Alami
Summary: Among thermal energy storage systems, Latent Heat Storage System is advantageous due to the small temperature changes and high stored energy. However, its low thermal conductivity poses a challenge. This paper discusses the use of fins and a metal matrix to improve the thermal performance of a rectangular thermal energy storage system filled with n-eicosane.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Supawit Homlakorn, Karthikeyan Velmurugan, Amnart Suksri, Tanakorn Wongwuttanasatian
Summary: This study develops novel PCM-infused finned and mesh finned containers to enhance the cooling effect of photovoltaic systems. The containers are integrated underneath the PV module and experimented in controlled indoor conditions. The results show that the metal mesh-based finned PCM container exhibits excellent performance enhancement with a peak cooling of 2.20% and corresponding increases in electrical power and energy productions of 2.01% and 2.71%, respectively. The statistical analysis reveals a strong positive correlation between ambient temperature and the temperature rise in photovoltaic systems, leading to performance degradation. It is recommended that these developed PCM containers are suitable for tropical climatic conditions to improve PV power output.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Marine
Yanwen Liu, Hongzhou Jiang
Summary: This study investigates the relationship between fish swimming performance and their body and caudal fin locomotion, identifying patterns of curvature change between high-efficiency and high-speed swimming modes. The research also shows a positive correlation between tail-beat frequency and swimming speed, stride length, and Cost of Transport (COT) when the Reynolds number is in the range of 10(4)-10(6). Furthermore, a comparison among different types of BCF fish reveals insights into the optimal swimming performance of different species.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Thermodynamics
Mustafa Turkyilmazoglu
Summary: A concave-parabolic pin fin's thermal performance is analyzed in the presence of oncoming airflow, with the study showing significant impact of airflow magnitude and fin shape parameter on cooling efficiency. Optimum fin dimensions are identified by maximizing heat transfer rate, with findings revealing significant influence of Peclet number variation on spine size.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
T. Amalesh, N. Lakshmi Narasimhan
Summary: Lithium-ion batteries require efficient thermal management systems for safe operation. Cooling methods such as liquid cooling and hybrid cooling have been proposed, but their suitability for fast charging lithium-ion batteries has not been explored. This study investigates the performance of liquid cooling and hybrid cooling methods and concludes that liquid cooling is more effective for cooling fast charging lithium-ion batteries.
APPLIED THERMAL ENGINEERING
(2022)
Article
Energy & Fuels
Abed Mourad, Aissa Abderrahmane, Azher M. Abed, Davood Toghraie, Sameh E. Ahmed, Kamel Guedri, Mohammad Ali Fazilati, Riadh Marzouki, Obai Younis
Summary: This article examines the improvement of heat diffusion within wavy snowflake-shaped containers filled with nano-enhanced PCM. The study found that the melting process could be well controlled using a lattice of heated fins, and increasing the waviness parameter and nanoparticle volume fraction enhances the rates of heat transfer and average liquid fraction.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Fen Liu, Jianfeng Wang, Yiqun Liu, Fuqiang Wang, Na Yang, Xiaodong Liu, Hui Liu, Wenxuan Li, Haitao Liu, Bo Huang
Summary: The study investigates the impact of honeycomb fins on battery temperature, finding that they can effectively reduce the temperature and improve melting efficiency. Optimal values for porosity, cooling plate thickness, and number of holes are suggested.
APPLIED THERMAL ENGINEERING
(2021)
Review
Green & Sustainable Science & Technology
T. Anfas Mukram, Joseph Daniel
Summary: The prime concern of the scientific community nowadays is high energy consumption and related greenhouse gas emissions. One of the major energy consumers is the building sector, which accounts for nearly 30% of total energy consumption. Researchers have suggested and implemented different cooling methods using phase change materials (PCMs) for building cooling. This article evaluates the application of PCM in building walls and bricks, highlighting the associated difficulties and possible alternatives.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Construction & Building Technology
Bin Huang, Ziao Zheng, Gaofeng Lu, Xiaoqiang Zhai
Summary: A phase change material (PCM) based cooling storage unit was designed to provide emergency cooling in an air-cooled modular data center. It reduces the need for UPS and improves operation reliability. The experimental results showed that the cooling storage unit could meet the emergency cooling demand for at least 300 seconds, and the cooling time could be extended further by installing arcuate fins on the PCM plates.
ENERGY AND BUILDINGS
(2022)
Review
Green & Sustainable Science & Technology
M. Eslami, F. Khosravi, H. R. Fallah Kohan
Summary: This paper provides a comprehensive review of various fin designs proposed for latent heat thermal energy storage systems, discussing the effects of different geometrical parameters. The study shows that an optimum number of fins, spacing, and length can be found in each case, while some parameters such as fin thickness are less important.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Green & Sustainable Science & Technology
Sandro Nizetic, Miso Jurcevic, Duje Coko, Muslum Arici
Summary: This paper presents experimental work on passively cooled free-standing silicon photovoltaic panels using phase change materials (PCM). The study tested a novel approach using multiple smaller PCM-filled containers compared to the conventional single container method, resulting in a 10.7% performance improvement. The findings suggest the potential for significant performance enhancements and resource savings with the novel PV-PCM passive cooling approach, impacting both economic and environmental aspects.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Thermodynamics
Ruijin Fan, Nianben Zheng, Zhiqiang Sun
Summary: Metal fin intensified PCM systems were proposed for thermal control of Li-ion battery modules, which significantly increased the heat exchange area and formed a high thermal conduction network. The results demonstrated that metal fins could effectively enhance the heat dissipation rate and improve the working time of battery modules.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Piyush Rawat, Ahmad Faizan Ashwni, Ahmad Faizan Sherwani
Summary: This article presents a numerical analysis on enhancing the melting process of phase change material (PCM) in a rectangular enclosure using flanged fins (T-shaped). The study examines various cases based on fin length ratio (Lu/Ld) and material with no-fin PCM enclosure. Copper (Cu) fins with a low Lu/Ld ratio of 0.25 result in the highest PCM melting rate and reduced total melting time (tm) compared to the no-fin PCM enclosure. The optimization concludes that a single flanged fin placed at the lower end of the container with a flanged to web ratio (Lf/Lu, d) of 0.55 has the minimum tm and cost per mean power (Cpw).
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Chemistry, Multidisciplinary
Ahmed Kadhim Hussein, Hameed Kadhem Hamzah, Farooq Hassan Ali, Masoud Afrand
Summary: Natural convection in an F-shaped cavity containing Ag-water non-Newtonian nanofluid saturated with a porous medium is numerically investigated. The study finds that the average Nusselt number increases with increasing solid volume fraction, Darcy number, and Rayleigh number, while it decreases with increasing power law index and Hartmann number. Furthermore, the relationship between the average Nusselt number and the periodic shape parameter depends on the values of the Rayleigh number and power law index.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Mathematics, Applied
Sameh E. Ahmed, Ahmed Kadhim Hussein, M. A. Mansour, Masoud Afrand, Zeinab Morsy, Lioua Kolsi
Summary: This study investigates the effect of magnetic field inclination and double lid-driven on mixed convection in a square cavity, using the local thermal non-equilibrium model. The results show that the heat transfer decreases with increasing dimensionless heat source location and Nield number, while increasing the Nield number enhances heat transfer for the porous phase.
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS
(2022)
Article
Engineering, Biomedical
Rasool Kalbasi, Bahador Sharifzadeh, Mehdi Jahangiri
Summary: This study numerically investigates the pulsatile blood flow inside arteries with elastic and rigid walls in different stenosis conditions. The results reveal significant differences in wall shear stress and pressure drop between rigid and elastic arteries, with double stenosis showing larger differences compared to single stenosis.
APPLIED BIONICS AND BIOMECHANICS
(2022)
Article
Green & Sustainable Science & Technology
Alireza Yazdani, Hossein Aberoumand, Yousef Farhadi, Abolfazl Ansari, Sadegh Aberoumand, Nader Karimi, Masoud Afrand, Goshtasp Cheraghian, Seyed Masoud Parsa, Hafiz Muhammad Ali
Summary: The main aim of this paper is to explore the effects of different nanofluid preparation methods on the performance of photovoltaic/thermal (PV/T) systems. The study found that nanofluid prepared using the one-step method had higher stability and improved energy performance compared to the two-step method. Increasing the concentration of nanofluid linearly increased system efficiencies, with the highest enhancement rate observed from 1% to 3% for two-step prepared nanofluid. It was also observed that system performance was higher in the turbulent-flow regime for two-step prepared nanofluid compared to the laminar-flow regime, which was attributed to the stability of the nanofluid.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Construction & Building Technology
Saeed Aghakhani, Ahmadreza Ghaffarkhah, Mohammad Arjmand, Nader Karimi, Masoud Afrand
Summary: This study investigates the thermal performance of a wall with phase change materials using numerical simulations. The findings show that the addition of nanoparticles reduces the melting and freezing time of the phase change materials, and lowers the wall temperature. Increasing the number of cavities speeds up the charge and discharge processes.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Amin Shahsavar, Abbas Goodarzi, Ighball Baniasad Askari, Mehdi Jamei, Masoud Karbasi, Masoud Afrand
Summary: This paper presents a 3D numerical analysis of a battery thermal management system (TMS) with Phase Change Material (PCM). The study found that setting an appropriate tip clearance (TC) between the annular fins and the alumina enclosure improves PCM free convection and enhances the heat transfer rate.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2022)
Article
Construction & Building Technology
Rasool Kalbasi, Parsa Hassani
Summary: This study focuses on the effect of phase change material (PCM) on comfort time in ten climatic zones. The results show that adding PCM significantly increases comfort time, with longer comfort time achieved when the PCM is installed closer to the indoor. The choice of suitable PCM has a slight impact on the comfort temperature range.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Environmental Sciences
Rasool Kalbasi, Bijan Samali, Masoud Afrand
Summary: Adding phase change materials (PCMs) into building envelopes is an effective way to reduce energy consumption and CO2 emissions. However, the presence of phase change in PCMs may not always lead to better energy savings. Installing PCMs near the uppermost layer can enhance energy-saving performance.
Article
Engineering, Multidisciplinary
Salman Abbasian-Naghneh, Rasool Kalbasi
Summary: This study examined the effects of using phase change materials (PCMs) in building walls on cooling/heating loads and annual energy consumption. The results showed that the installation location of PCM is closely related to the thermal insulation position, and installing PCM next to the insulation can significantly reduce cooling loads.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2022)
Article
Green & Sustainable Science & Technology
Amin Shahsavar, Ali H. A. Alwaeli, Neda Azimi, Shirin Rostami, Kamaruzzaman Sopian, Muslum Arici, Patrice Estelle, Sandro Nizetic, Alibakhsh Kasaeian, Hafiz Muhammad Ali, Zhenjun Ma, Masoud Afrand
Summary: This paper presents a critical review with recommendations for future research on the topic of exergy examination of water-based and nanofluid-based photovoltaic-thermal units. It introduces the concept and mathematical exergy relations, discusses water-based and nanofluid-based photovoltaic-thermal units in detail, and describes novel units.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Saeed Aghakhani, Masoud Afrand, Arash Karimipour, Rasool Kalbasi, Mohammad Mehdi Razzaghi
Summary: This study investigates the performance of a flat plate solar collector with a spiral pipe containing water through numerical and experimental research. The results show that increasing the outer diameter of the spiral and the diameter of the collector pipe enhances the average temperature and heat transfer coefficient, while reducing the flow rate decreases these parameters. Moreover, the pressure drop and pumping power are influenced by the flow rate, outer diameter of the spiral, and pipe diameter.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Thermodynamics
Saeed Aghakhani, Ahmad Hajatzadeh Pordanjani, Masoud Afrand, Ayoob Khosravi Farsani, Nader Karimi, Mohsen Sharifpur
Summary: This paper presents a thermodynamic analysis of a mini circular heatsink, investigating different types of heatsinks and their performance. The results show that copper heatsinks have better cooling performance than aluminum heatsinks. Additionally, the study found that the addition of nanoparticles to the working fluid has a minimal impact on the thermodynamic performance of the system. Increasing the Reynolds number of the fluid flow reduces the exergy losses and improves the first and second law efficiencies.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Chemistry, Physical
Ahmad Hajatzadeh Pordanjani, Saeed Aghakhani, Masoud Afrand, Ping Zhang, Rongjiang Tang, Omid Mahian, Somchai Wongwises, Mohammad Mehdi Rashidi
Summary: This study investigates lithium-ion battery packs made of compact cylindrical Li-ion batteries. The thermal and electrochemical equations governing the batteries are solved using the finite-element method, coupled with the airflow around the batteries. The results show that better cooling enhances the cells' long-term performance, and increasing the distribution of the batteries at the center improves cooling and reduces temperature gradients.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Goshtasp Cheraghian, Michael P. Wistuba, Sajad Kiani, Ali Behnood, Masoud Afrand, Andrew R. Barron
Summary: The use of nanotechnology in road pavement has shown effective results in preventing asphalt aging, increasing durability and reducing emissions.
NANOTECHNOLOGY REVIEWS
(2022)
Article
Thermodynamics
Yong Cheng, Fukai Song, Lei Fu, Saishuai Dai, Zhiming Yuan, Atilla Incecik
Summary: This paper investigates the accessibility of wave energy absorption by a dual-pontoon floating breakwater integrated with hybrid-type wave energy converters (WECs) and proposes a hydraulic-pneumatic complementary energy extraction method. The performance of the system is validated through experiments and comparative analysis.
Article
Thermodynamics
Jing Gao, Chao Wang, Zhanwu Wang, Jin Lin, Runkai Zhang, Xin Wu, Guangyin Xu, Zhenfeng Wang
Summary: This study aims to establish a new integrated method for biomass cogeneration project site selection, with a focus on the application of the model in Henan Province. By integrating Geographic Information System and Multiple Criterion Decision Making methods, the study conducts site selection in two stages, providing a theoretical reference for the construction of biomass cogeneration projects.
Article
Thermodynamics
Mert Temiz, Ibrahim Dincer
Summary: The current study presents a hybrid small modular nuclear reactor and solar-based system for sustainable communities, integrating floating and bifacial photovoltaic arrays with a small modular reactor. The system efficiently generates power, hydrogen, ammonia, freshwater, and heat for residential, agricultural, and aquaculture facilities. Thermodynamic analysis shows high energy and exergy efficiencies, as well as large-scale ammonia production meeting the needs of metropolitan areas. The hybridization of nuclear and solar technologies offers advantages of reliability, environmental friendliness, and cost efficiency compared to renewable-alone and fossil-based systems.
Editorial Material
Thermodynamics
Wojciech Stanek, Wojciech Adamczyk
Article
Thermodynamics
Desheng Xu, Yanfeng Li, Tianmei Du, Hua Zhong, Youbo Huang, Lei Li, Xiangling Duanmu
Summary: This study investigates the optimization of hybrid mechanical-natural ventilation for smoke control in complex metro stations. The results show that atrium fires are more significantly impacted by outdoor temperature variations compared to concourse/platform fires. The gathered high-temperature smoke inside the atrium can reach up to 900 K under a 5 MW train fire energy release. The findings provide crucial engineering insights into integrating weather data and adaptable ventilation protocols for smoke prevention/mitigation.
Article
Thermodynamics
Da Guo, Heping Xie, Mingzhong Gao, Jianan Li, Zhiqiang He, Ling Chen, Cong Li, Le Zhao, Dingming Wang, Yiwei Zhang, Xin Fang, Guikang Liu, Zhongya Zhou, Lin Dai
Summary: This study proposes a new in-situ pressure-preserved coring tool and elaborates its pressure-preserving mechanism. The experimental and field test results demonstrate that this tool has a high pressure-preservation capability and can maintain a stable pressure in deep wells. This study provides a theoretical framework and design standards for the development of similar technologies.
Article
Thermodynamics
Aolin Lai, Qunwei Wang
Summary: This study assesses the impact of China's de-capacity policy on renewable energy development efficiency (REDE) using the Global-MSBM model and the difference-in-differences method. The findings indicate that the policy significantly enhances REDE, promoting technological advancements and marketization. Moreover, regions with stricter environmental regulations experience a higher impact.
Article
Thermodynamics
Mostafa Ghasemi, Hegazy Rezk
Summary: This study utilizes fuzzy modeling and optimization to enhance the performance of microbial fuel cells (MFCs). By simulating and analyzing experimental data sets, the ideal parameter values for increasing power density, COD elimination, and coulombic efficiency were determined. The results demonstrate that the fuzzy model and optimization methods can significantly improve the performance of MFCs.
Article
Thermodynamics
Zhang Ruan, Lianzhong Huang, Kai Wang, Ranqi Ma, Zhongyi Wang, Rui Zhang, Haoyang Zhao, Cong Wang
Summary: This paper proposes a grey box model for fuel consumption prediction of wing-diesel hybrid vessels based on feature construction. By using both parallel and series grey box modeling methods and six machine learning algorithms, twelve combinations of prediction models are established. A feature construction method based on the aerodynamic performance of the wing and the energy relationship of the hybrid system is introduced. The best combination is obtained by considering the root mean square error, and it shows improved accuracy compared to the white box model. The proposed grey box model can accurately predict the daily fuel consumption of wing-diesel hybrid vessels, contributing to operational optimization and the greenization and decarbonization of the shipping industry.
Article
Thermodynamics
Huayi Chang, Nico Heerink, Junbiao Zhang, Ke He
Summary: This study examines the interaction between off-farm employment decisions between couples and household clean energy consumption in rural China, and finds that two-paycheck households are more likely to consume clean energy. The off-farm employment of women is a key factor driving household clean energy consumption to a higher level, with wage-employed wives having a stronger influence on these decisions than self-employed ones.
Article
Thermodynamics
Hanguan Wen, Xiufeng Liu, Ming Yang, Bo Lei, Xu Cheng, Zhe Chen
Summary: Demand-side management is crucial to smart energy systems. This paper proposes a data-driven approach to understand the relationship between energy consumption patterns and household characteristics for better DSM services. The proposed method uses a clustering algorithm to generate optimal customer groups for DSM and a deep learning model for training. The model can predict the possibility of DSM membership for a given household. The results demonstrate the usefulness of weekly energy consumption data and household socio-demographic information for distinguishing consumer groups and the potential for targeted DSM strategies.
Article
Thermodynamics
Xinglan Hou, Xiuping Zhong, Shuaishuai Nie, Yafei Wang, Guigang Tu, Yingrui Ma, Kunyan Liu, Chen Chen
Summary: This study explores the feasibility of utilizing a multi-level horizontal branch well heat recovery system in the Qiabuqia geothermal field. The research systematically investigates the effects of various engineering parameters on production temperature, establishes mathematical models to describe their relationships, and evaluates the economic viability of the system. The findings demonstrate the significant economic feasibility of the multi-level branch well system.
Article
Thermodynamics
Longxin Zhang, Songtao Wang, Site Hu
Summary: This investigation reveals the influence of tip leakage flow on the modern transonic rotor and finds that the increase of tip clearance size leads to a decline in rotor performance. However, an optimal tip clearance size can extend the rotor's stall margin.
Article
Thermodynamics
Kristian Gjoka, Behzad Rismanchi, Robert H. Crawford
Summary: This paper proposes a framework for assessing the performance of 5GDHC systems and demonstrates it through a case study in a university campus in Melbourne, Australia. The results show that 5GDHC systems are a cost-effective and environmentally viable solution in mild climates, and their successful implementation in Australia can create new market opportunities and potential adoption in other countries with similar climatic conditions.
Article
Thermodynamics
Jianwei Li, Guotai Wang, Panpan Yang, Yongshuang Wen, Leian Zhang, Rujun Song, Chengwei Hou
Summary: This study proposes an orientation-adaptive electromagnetic energy harvester by introducing a rotatable bluff body, which allows for self-regulation to cater for changing wind flow direction. Experimental results show that the output power of the energy harvester can be greatly enhanced with increased rotatory inertia of the rotating bluff body, providing a promising solution for harnessing wind-induced vibration energy.
