Article
Thermodynamics
R. Dadsetani, G. A. Sheikhzade, Marjan Goodarzi, Ahmad Zeeshan, Rahmat Ellahi, Mohammad Reza Safaei
Summary: The efficiency of electronic equipment is crucial for technology development, which can be affected by thermal conditions, mechanical strength, size, and mass. The Hybrid method, combining microchannel and high-conductivity approaches, has shown promising results in improving cooling efficiency and mechanical strength. By optimizing the volume of high-conductivity material in the tangential direction, the Hybrid method can reduce peak temperature and stress significantly compared to traditional methods.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Mingzheng Ye, Jianqiang Du, Jin Wang, Lei Chen, Petar Sabev Varbanov, Jiri Jaromir Klemes
Summary: In this paper, a combined structure of fan-shaped cavities and oval pin fins is designed for a rectangular microchannel heat sink. The effects of different structural parameters on the performance are investigated. The results show that the microchannel exhibits improved hydrothermal performance under the optimal parameter combination.
Article
Mathematics
Syarif Syahrul Syazwan Muzhaimey, Nik Nazri Nik Ghazali, Mohd Zamri Zainon, Irfan Anjum Badruddin, Mohamed Hussien, Sarfaraz Kamangar, N. Ameer Ahammad
Summary: This study focuses on improving the thermal performance of microchannel heat sink (MCHS) using the passive reentrant cavity approach. Numerical simulations were conducted on a single-channel model of MCHS to examine the effects of geometrical parameters on pressure drops and heat transfer under steady-state conditions. The results show that the conical-shaped microchannel heat sink significantly enhances convection heat transfer with minimal pressure loss.
Article
Thermodynamics
R. Vinoth, B. Sachuthananthan, A. Vadivel, S. Balakrishnan, A. Gnana Sagaya Raj
Summary: The experimental study analyzed the heat transfer characteristics of an oblique finned curved microchannel heat sink with different working fluids. The results showed that the curved microchannel heat sink had higher heat transfer rate, PEC and pressure drop compared to the straight channel heat sink. When using a hybrid nanofluid, the heat transfer rate of the curved microchannel heat sink was also higher.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Thermodynamics
Amir Heidarshenas, Zoha Azizi, S. M. Peyghambarzadeh, S. Sayyahi
Summary: Recent research focuses on the preparation and application of nanofluids with specific requirements, such as durability, stable suspension of particles, and negligible agglomeration. A novel nanofluid containing ionic liquid-alumina nanohybrids was studied for its thermal performance and stability in miniature heat transfer devices. The hybrid nanofluid showed improved thermal performance compared to alumina nanofluid, especially at smaller particle sizes, making it a promising option for small scale heat transfer applications.
APPLIED THERMAL ENGINEERING
(2021)
Article
Chemistry, Analytical
Maryam Aghaseyedi, Alireza Salehi, Shayan Valijam, Mostafa Shooshtari
Summary: A study was conducted to investigate the effects of microchannel geometry on the performance of microfluidic-based gas sensors. The simulated models showed that a serpentine microchannel had higher selectivity and response compared to a simple channel. Increasing the length and reducing the height of the channel also improved selectivity.
Article
Nanoscience & Nanotechnology
Mohamad Nur Hidayat Mat, R. Saidur
Summary: This study investigates the characteristic effect of boron nitride nanotubes in a nanofluid with and without a surfactant using numerical CFD. The results show that the addition of a surfactant can significantly reduce thermal resistance and increase Nusselt number. However, it also leads to an increase in pressure drop.
MICROFLUIDICS AND NANOFLUIDICS
(2022)
Review
Computer Science, Interdisciplinary Applications
K. Naga Ramesh, T. Karthikeya Sharma, G. Amba Prasad Rao
Summary: This article provides information on experimental and numerical studies on heat transfer and its enhancement in micro-scale cooling devices, focusing on heat transfer enhancement techniques in microchannels and the parameters affecting heat transfer rate. Recent studies on improving microchannel heat sink performance through geometry modifications, jet impingement, using Nano fluids, flow boiling, and Magneto-hydrodynamics are thoroughly discussed in this article.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2021)
Article
Thermodynamics
Yu-Ming Chu, Umar Farooq, Nidhish Kumar Mishra, Zubair Ahmad, Fakhar Zulfiqar, Sumeira Yasmin, Shan Ali Khan
Summary: The utilization of microchannels in miniature thermal devices and microchannel heat sinks has brought the scientific method of heat transfer to a new level. Industries such as electronic device cooling, aerospace, bioengineering, and materials science are interested in advancing this technology. The use of microchannels and novel fluids like nanofluids is gaining popularity. This analysis aims to scrutinize the computational thermal transportation features of alumina nitride (AIN)-alumina oxide (Al2O3)-Water hybrid nanofluid through electronic chips in six circular microchannel heat sinks.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Kai Tang, Mohammad Amin Masoumi, Hamid Rajabi, Seyed Alireza Rozati, Omid Ali Akbari, Farnaz Montazerifar, Davood Toghraie, Mohammad Khalili
Summary: This paper presents a numerical simulation study of graphene nanoplatelet (GNP) - sodium dodecylbenzene sulfonate (SDBS) - water nanofluid. The study indicates that higher Reynolds numbers lead to increased convective heat transfer coefficients, decreased temperature gradients, and increased influence of cooling fluid temperature in the warm areas near the solid wall. Furthermore, higher Reynolds numbers also result in larger development lengths and decreased outlet section temperatures.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Hussein M. Maghrabie, A. G. Olabi, Enas Taha Sayed, Tabbi Wilberforce, Khaled Elsaid, Mohammad Hossein Doranehgard, Mohammad Ali Abdelkareem
Summary: Nowadays, cooling electronic components is considered a critical issue. This study focuses on fluid flow, heat transfer, and thermal performance to avoid hot spots in electronic devices. It discusses the use of nanofluids in microchannels for cooling electronics, considering the thermophysical properties and future prospects of nanofluids in electronic components.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Mathematics
Sardar Bilal, Imtiaz Ali Shah, Kaouther Ghachem, Abdelkarim Aydi, Lioua Kolsi
Summary: Fluids with high hydrothermal characteristics, known as nanofluids, have been developed by adding dispersed nanoparticles to base fluids. Among these, multi-walled carbon nanotubes (MWCNTs) are considered the best option due to their significant enhancement of thermophysical properties and solution stability. This study analyzes the heat transfer characteristics of MWCNT-water nanofluid in a star-shaped cavity with a hot rectangular baffle. Numerical simulations are conducted using COMSOL and PARADISO software, and the effects of governing parameters on velocity and temperature fields are presented through streamlines and isotherms.
Article
Engineering, Multidisciplinary
O. S. Osman, R. M. El-Zoheiry, M. Elsharnoby, S. A. Nada
Summary: The serpentine channels cold plate showed better thermal performance compared to parallel and wavy channels, with lower thermal resistance and higher Nusselt number. However, it also had higher pressure drop and pumping power.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Article
Thermodynamics
M. J. Montes, R. Guedez, J. Linares, M. A. Reyes-Belmonte
Summary: This study compares different configurations of solar thermal power plants based on supercritical power cycles and pressurized central receiver systems in terms of their thermo-economic performance. Two innovations are introduced in the solar subsystem: the use of pressurized gas or supercritical fluid as the heat transfer fluid in the receiver, and a radial configuration of compact absorber panels. The study evaluates different supercritical CO2 recompression cycles and different heat transfer fluids, concluding that higher receiver inlet pressure leads to smaller size and better thermal efficiency, but lower optical efficiency. The optimal configuration is found to be the plant based on the intercooling cycle, which achieves the highest overall efficiency of 32.05%. An economic analysis reveals that the plant based on the partial-cooling cycle has the lowest levelized cost of electricity at $0.15/kWh, primarily due to its lower investment cost. The innovative directly coupled cycle closely follows with a cost of $0.17/kWh, driven by its high electricity production resulting from low self-consumption.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Energy & Fuels
Kareem Akhtar, Haseeb Ali, Israr Ud Din, Azed Abbas, Muhammad Zeeshan Zahir, Faraz Ahmad, Fayyaz Alam, Nasir Shah, Muhammad Aamir
Summary: This study proposes the use of symmetrical ogive-shaped ribs on the walls of microchannel heat sinks (MCHS) to improve their thermal performance with minimal pressure drop. Numerical investigations using the laminar conjugate heat transfer model show that the inclusion of symmetrical ogive-shaped ribs improves the Nusselt number of MCHS. The MC-SAWR configuration is found to be the best configuration that provides high cooling performance.
Article
Thermodynamics
Manzoore Elahi M. Soudagar, Asif Afzal, Mohammad Reza Safaei, A. Muthu Manokar, Ahmed EL-Seesy, M. A. Mujtaba, Olusegun David Samuel, Irfan Anjum Badruddin, Waqar Ahmed, Kiran Shahpurkar, Marjan Goodarzi
Summary: In this study, experiments were conducted to prepare biodiesel from cottonseed oil and blend it with octanol, with the added improvement of thermal and mass transfer characteristics through functionalized multi-walled carbon nanotubes (MWCNTs). The performance analysis showed that adding octanol and MWCNT nanoparticle can stabilize fuel consumption rate and increase brake thermal efficiency.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Correction
Thermodynamics
Manzoore Elahi M. Soudagar, Asif Afzal, Mohammad Reza Safaei, A. Muthu Manokar, Ahmed I. EL-Seesy, M. A. Mujtaba, Olusegun David Samuel, Irfan Anjum Badruddin, Waqar Ahmed, Kiran Shahapurkar, Marjan Goodarzi
Summary: This passage mentions the issue of incorrect publication of the affiliations of authors in an article.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Review
Thermodynamics
Laxmikant D. Jathar, S. Ganesan, Kiran Shahapurkar, Manzoore Elahi M. Soudagar, M. A. Mujtaba, Ali E. Anqi, Muhammad Farooq, Abdulqhadar Khidmatgar, Marjan Goodarzi, Mohammad Reza Safaei
Summary: The research shows that the performance of solar stills is greatly influenced by climatic, design, and operational parameters, and the optimal productivity output depends on a combination of factors such as solar radiation intensity, still type, and temperature.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Materials Science, Multidisciplinary
Jayachandra S. Yaradoddi, Nagaraj R. Banapurmath, Sharanabasava V. Ganachari, Manzoore Elahi M. Soudagar, Ashok M. Sajjan, Shrinidhi Kamat, M. A. Mujtaba, Ashok S. Shettar, Ali E. Anqi, Mohammad Reza Safaei, Ashraf Elfasakhany, Md Irfanul Haque Siddiqui, Masood Ashraf Ali
Summary: Bioplastics, derived from natural resources, have attracted attention due to their biodegradability. This study focused on producing bioplastic from orange peel, which has high cellulose content. The developed film showed promising results in terms of strength, flexibility, and bio-degradability. Characterization methods confirmed its bio-based nature. A simple and economical process was described for manufacturing this bio-based plastic.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Engineering, Chemical
L. Ranganatha Swamy, N. R. Banapurmath, T. K. Chandrashekar, Manzoore Elahi M. Soudagar, M. Gul, Nik-Nazri Nik-Ghazali, M. A. Mujtaba, Kiran Shahapurkar, Umit Agbulut, Hashim M. Alshehri, A. M. Sajjan, Marjan Goodarzi
Summary: The use of oxygenated fuels as a substitute for diesel fuel in engines can effectively reduce emissions, but it also leads to increased NOx emissions, inferior HC and CO emissions, and shortened ignition delay and combustion duration.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Engineering, Mechanical
Sumit R. Zanje, Linlong Bian, Vivek Verma, Zeda Yin, Arturo S. Leon
Summary: This study investigates the relationship between pipe leakage location and siphon break phenomenon through simulation and analysis. The results show that leakage above the hydraulic grade line and close to the top inverted U section of the siphon pipe is most likely to cause siphon breakage, while leakage below the hydraulic grade line does not lead to siphon breakage. In addition, when the leakage position is far away from the upper horizontal section of the siphon pipe, air is removed from the siphoning water, allowing more time for complete siphon breakage.
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Engineering, Marine
Hamid Maleki, Mohammad Reza Safaei, Arturo S. Leon, Taseer Muhammad, Truong Khang Nguyen
Summary: This study investigates the effects of perforation geometry on laminar airflow and heat transfer characteristics in a perforated plate-fin heat sink. The results show that circular perforations achieve the highest efficiency, while square perforations can reach the maximum size, leading to an optimal configuration. Additionally, changing the shape and size of the perforations significantly improves heat transfer performance and heat sink efficiency.
JOURNAL OF OCEAN ENGINEERING AND SCIENCE
(2022)
Article
Engineering, Civil
Duan Chen, Arturo Leon, Ruonan Li, Rui Han
Summary: Quantitative comparisons of different reservoir operation schemes were conducted to provide suggestions for decision making and promote new planning tools. Four reservoir operation schemes were considered and evaluated under typical hydrological years. The progressive improvement from rule-curve-based setup to single-objective optimisation setup, then bi-objective optimisation setup and finally many-objective optimisation setup was observed. The many-objective optimisation setup provided a comprehensive perspective on reservoir operation and offered the most options for decision making.
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-WATER MANAGEMENT
(2023)
Article
Construction & Building Technology
L. Qin, D-S Yang, Y-N Weng, A. S. Leon, X-H Shi
Summary: This study presents the results of a driving experiment on the spatiotemporal characteristics of drivers' fixation when entering a tunnel portal at different driving speeds. The results demonstrate that vehicle speed significantly impacts the pupil area and fixation zones of drivers, with drivers focusing more on the tunnel entrance, road pavement, and car control wheel.
LIGHTING RESEARCH & TECHNOLOGY
(2023)
Article
Thermodynamics
Somayeh Davoodabadi Farahani, Mahdi Alibeigi, Amir Zakinia, Marjan Goodarzi
Summary: This numerical study examines the impact of microchannels, porous medium, and nanofluid on the cooling efficiency of a solar concentrator photovoltaic system. The results show that using microchannels can significantly reduce the temperature of solar cells and improve the electrical efficiency of the CPV system. Additionally, the porous layer plays a crucial role in enhancing thermal conductivity and improving the performance of the PV system.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
S. Anitha, Mohammad Reza Safaei, S. Rajeswari, M. Pichumani
Summary: This study focuses on the thermal performance of double-tube heat exchangers with two types of hybrid nanofluids, showing that TiO2-γ-AlOOH/water leads to a 50% improvement in heat transfer rate compared to TiO2-γ-AlOOH/ethylene glycol. However, the latter has a higher pumping power by 30%. Further analysis on the energy consumption of heat exchangers with ethylene glycol-based coolants on an industrial scale is needed for future research.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
K. A. Sateesh, V. S. Yaliwal, Manzoore Elahi M. Soudagar, N. R. Banapurmath, H. Fayaz, Mohammad Reza Safaei, Ashraf Elfasakhany, Ahmed EL-Seesy
Summary: The study investigates the impact of nanofluids using Al2O3 nanoparticles on diesel engine performance, showing an improvement in engine efficiency and a reduction in harmful emissions.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Mohamad Nur Hidayat Mat, Norzelawati Asmuin, Md Faisal Md Basir, Mashhour A. Alazwari, Mohammad Reza Safaei
Summary: This study employed a computational couple simulation approach to investigate the influence of divergent nozzle length on single-hose nozzle geometry. The results revealed a relationship between flow velocity and turbulence flow within the nozzle cavity. Different lengths of divergent nozzles were found to result in varying sound pressure levels and sound power levels.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
