Article
Energy & Fuels
Mohanan Vasanthakumari Bindu, Gnana Muthu Joselin Herbert
Summary: By adjusting the volume concentration of nanoparticles, a ternary nanofluid composed of Al2O3, ZnO, and multiwall carbon nanotubes demonstrates significant improvements in thermal conductivity and viscosity, making it suitable for medium-temperature heat transfer applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Multidisciplinary Sciences
Hanifa Hanif, Sharidan Shafie
Summary: This research investigates the use of nanofluids as coolants to improve the cooling process in an electrical power system. The study takes into account the exceptional characteristics of nanofluids and considers the effects of heat radiation, viscous dissipation, and Newtonian heating. The numerical simulations and results obtained using MATLAB software are presented graphically.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Kevin Apmann, Ryan Fulmer, Branden Scherer, Sawyer Good, Jake Wohld, Saeid Vafaei
Summary: This study investigates the effects of a connector between two microchannels for the first time. Fe3O4 nanoparticles were introduced to enhance the heat transfer coefficient inside the microchannels, and it was observed that the connector has a significant impact on enhancing the heat transfer coefficient inside the second microchannel.
Article
Chemistry, Physical
A. G. N. Sofiah, M. Samykano, K. Sudhakar, Zafar Said, A. K. Pandey
Summary: In this study, CuO/PANI nanocomposites-blended in palm oil hybrid nanofluid was prepared via a two-step method and investigated as a potential heat transfer hybrid nanofluid for the first time. The nanocomposites were successfully synthesized and characterized, and the hybrid nanofluids were prepared and stabilized without surfactants. The stability, chemical stability, thermal stability, density, rheology, and viscosity properties of the nanofluids were evaluated. It was found that the nanofluid containing 10 wt% CuO/PANI nanocomposites exhibited the highest viscosity and thermal conductivity properties.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Abdul Rehman, Sana Yaqub, Majid Ali, Hassan Nazir, Nadia Shahzad, Sehar Shakir, Rabia Liaquat, Zafar Said
Summary: This study investigates the influence of eight surfactants on the properties of hybrid nanofluids containing Aluminum oxide (Al2O3) and Titanium dioxide (TiO2). The results show that polyvinylpyrrolidone (PVP) exhibits the highest stability among all surfactants, while polyethylene glycol (PEG) shows the highest viscosity enhancement. Additionally, all the nanofluids exhibit Newtonian behavior. The study emphasizes the potential of PVP as a surfactant for long-term heat transfer applications.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Yunhong Shi, Awatef Abidi, Yacine Khetib, Long Zhang, Mohsen Sharifpur, Goshtasp Cheraghian
Summary: In this study, Molecular Dynamics (MD) is used to investigate the atomic and thermal performance of H2O/Fe nanofluid by inserting Fe nanoparticles with various shapes into H2O molecules. The results show that spherical nanoparticles have a significant impact on the behavior of the nanofluid.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Thermodynamics
Zoljargal Narankhishig, Jeonggyun Ham, Hoseong Lee, Honghyun Cho
Summary: The review covers experimental and numerical investigations on the convective heat transfer of various nanofluids, especially hybrid nanofluids. Performance optimization of nanofluid heat and mass transfer is influenced by factors such as nanofluid characteristics, synthesis method, magnetic force, nanoparticle concentration and size, and Reynolds number. Studies have shown that the magnetic field in magnetic nanoparticles can significantly enhance the convective heat transfer performance of nanofluids.
APPLIED THERMAL ENGINEERING
(2021)
Article
Energy & Fuels
R. M. Mostafizur, M. G. Rasul, M. N. Nabi, Gopalan Saianand
Summary: This study experimentally investigated the effects of volume fraction and temperature on the thermal conductivity, viscosity, and density of Al2O3-MWCNT/radiator coolant hybrid nanofluid. The results showed that the thermal conductivity increased with the volume fraction of nanoparticles, while viscosity and density decreased with temperature.
Article
Energy & Fuels
Praveen Kumar Kanti, K. V. Sharma, H. N. Anil Rao, Masoud Karbasi, Zafar Said
Summary: In this study, a new ionic liquid (IL) was synthesized and used to prepare ionanofluids (INF). The stability, viscosity, and thermal conductivity of IL and INF were experimentally determined. The results showed significant increases in thermal conductivity and viscosity of INF at high temperatures, and good agreement between the experimental data and theoretical models. Furthermore, a gene expression programming (GEP) model was able to accurately predict the performance of INF.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Thermodynamics
Kai-Xin Hu, Yan Huang, Xin-Yuan Zhang, Sheng Wang, Qi-Sheng Chen
Summary: The paper analyzes the flow of nanofluids in a channel with linearly varying wall temperature, applying a non-uniform equilibrium fluid medium model. Results show different distributions and variations in nanoparticle concentration and fluid properties under different cooling or heating conditions.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Mohammad Hemmat Esfe, S. Ali Eftekhari, Maboud Hekmatifar, Davood Toghraie
Summary: This study investigated the influence of different volume fractions of nanoparticles and temperatures on the dynamic viscosity of a hybrid nanofluid using artificial neural networks. The results showed that an increase in nanoparticle volume fraction led to an increase in viscosity, while an increase in temperature led to a decrease in viscosity of the nanofluid. The well-trained artificial neural network can be used as an approximate function for predicting the dynamic viscosity of the nanofluid.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Adeola Borode, Thato Tshephe, Peter Olubambi, Mohsen Sharifpur, Josua Meyer
Summary: The study investigated the influence of concentration and temperature on the electrical conductivity, viscosity, and thermal conductivity of GNP/Fe2O3 hybrid nanofluids. Results showed that nanofluids exhibited superior electrical conductivity, viscosity, and thermal conductivity compared to water. The electrical conductivity and thermal conductivity increased linearly with concentration at a constant temperature, while the viscosity of the nanofluid increased with the addition of hybrid nanoparticles and decreased with temperature. Additionally, increasing the addition of hybrid nanoparticles in the base fluid enhanced the thermal conductivity of the nanofluid, and the thermal conductivity ratio increased with the addition of nanoparticles. These findings highlight the potential of GNP/Fe2O3 hybrid nanofluids for improving heat transfer and energy efficiency in various industrial applications.
Article
Energy & Fuels
M. Arulprakasajothi, N. Dilip Raja, N. Beemkumar, K. Elangovan
Summary: A parallel flow heat exchanger was fabricated with conical sectional inserts of three different pitch ratios (1, 2, and 3) in orientations different from the working fluid flow direction. Al2O3 nanoparticles (90 nm size) with varying volume concentrations (0%, 2%, and 4%) were added to De-ionized water as the working fluid. The combined effect of the Nanofluid and the inserts in different orientations was studied, and it was concluded that the insert, flow direction, and Nanofluid volume concentration significantly enhanced heat transfer and improved thermal properties.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2022)
Article
Multidisciplinary Sciences
S. Bilal, Imtiaz Ali Shah, Muhammad Ramzan, Kottakkaran Sooppy Nisar, Ashraf Elfasakhany, Emad M. Eed, Hassan Ali S. Ghazwani
Summary: This study discusses the enhancement of heat transfer performance by adding nanoparticles in poorly conducting base liquids. It is found that metallic particles have a greater effect on heat transfer compared to non-metallic particles. The size and shape of the nanoparticles also affect the thermal conductivity and viscosity of the fluid.
SCIENTIFIC REPORTS
(2022)
Article
Thermodynamics
Zeeshan Ahmed, Satyajeet Parida, Pasupuleti Subrahmanya Ranjit, Vivek Kumar Singh
Summary: This study predicts the transport properties of alumina-carbon dioxide nanofluid using machine learning models and molecular simulation methods. The decision tree model is found to be the most suitable for predicting the transport properties of the nanofluid under different conditions.
HEAT TRANSFER ENGINEERING
(2022)
Article
Thermodynamics
M. Ghanbarpour, N. Nikkarn, R. Khodabandeh, M. S. Toprak
APPLIED THERMAL ENGINEERING
(2015)
Article
Thermodynamics
Ehsan B. Haghighi, Adi T. Utomo, Morteza Ghanbarpour, Ashkan I. T. Zavareh, Emilia Nowak, Rahmatollah Khodabandeh, Andrzej W. Pacek, Bjorn Palm
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2015)
Article
Thermodynamics
M. Ghanbarpour, N. Nikkam, R. Khodabandeh, M. S. Toprak
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2015)
Article
Thermodynamics
Morteza Ghanbarpour, Rahmatollah Khodabandeh
THERMOCHIMICA ACTA
(2015)
Article
Thermodynamics
M. Ghanbarpour, R. Khodabandeh, K. Vafai
HEAT AND MASS TRANSFER
(2017)
Article
Thermodynamics
Nader Nikkam, Morteza Ghanbarpour, Rahmatollah Khodabandeh, Muhammet S. Toprak
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2017)
Article
Thermodynamics
Sajjad Ahangar Zonouzi, Rahmatollah Khodabandeh, Habibollah Safarzadeh, Habib Aminfar, Yuliya Trushkina, Mousa Mohammadpourfard, Morteza Ghanbarpour, German Salazar Alvarez
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2018)
Article
Thermodynamics
Nader Nikkam, Morteza Ghanbarpour, Mohsin Saleemi, Ehsan Bitaraf Haghighi, Rahmatollah Khodabandeh, Mamoun Muhammed, Bjorn Palm, Muhammet S. Toprak
APPLIED THERMAL ENGINEERING
(2014)
Article
Thermodynamics
Mohammadreza Behi, Seyed Aliakbar Mirmohammadi, Morteza Ghanbarpour, Hamidreza Behi, Bjorn Palm
Article
Thermodynamics
Ehsan B. Haghighi, Adi T. Utomo, Morteza Ghanbarpour, Ashkan I. T. Zavareh, Heiko Poth, Rahmatollah Khodabandeh, Andrzej Pacek, Bjoern E. Palm
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2014)
Article
Thermodynamics
Adi T. Utomo, Ehsan B. Haghighi, Ashkan I. T. Zavareh, Morteza Ghanbarpourgeravi, Heiko Poth, Rahmatollah Khodabandeh, Bjorn Palm, Andrzej W. Pacek
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2014)
Article
Nanoscience & Nanotechnology
Nader Nikkam, Mohsin Saleemi, Ehsan B. Haghighi, Morteza Ghanbarpour, Rahmatollah Khodabandeh, Mamoun Muhammed, Bjorn Palm, Muhammet S. Toprak
NANO-MICRO LETTERS
(2014)
Article
Thermodynamics
Seyed Aliakbar Mirmohammadi, Mohammadreza Behi, Morteza Ghanbarpour
ENERGY CONVERSION AND MANAGEMENT
(2019)
Article
Thermodynamics
Hamidreza Behi, Morteza Ghanbarpour, Mohammadreza Behi
APPLIED THERMAL ENGINEERING
(2017)
Article
Thermodynamics
Cong Li, Jiali Wang, Chenhui Wang, Yanke Jin, Yina Yao, Rui Yang
Summary: This study investigates the impact of NaCl water droplets with various concentrations on a heated surface. The results show that the impact patterns can be categorized into different types, and models are established to predict the spreading behavior of droplets with different concentrations. Additionally, high concentration droplets exhibit more violent boiling and have lower residual energy and rebound time.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
C. Barrera, V. Castro, F. Escudero, J. J. Cruz, I. Verdugo, J. Yon, A. Fuentes
Summary: This study focuses on the characterization of soot maturity and sooting propensity of anisole fuel in a controlled laminar coflow diffusion flame. The results show that the spatial distribution of soot volume fraction is enhanced near the flame centerline, while soot production is promoted near the flame wings. The temperature increase also affects the maturity of soot particles.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Roman W. Morse, Jason Chan, Tiago A. Moreira, Jared J. Valois, Evan T. Hurlburt, Jean-Marie Le Corre, Arganthael Berson, Kristofer M. Dressler, Gregory F. Nellis
Summary: This study investigates the dryout of liquid film and the role of disturbance wave frequency. Experimental results indicate that the heat transfer coefficient associated with optimal boiling conditions is maximized when the surface is dry 5% of the time, independent of pulse amplitude and frequency. Liquid-film measurements, dryout statistics, and direct observation suggest that disturbance-wave frequency can be manipulated by density-wave oscillations in the flow field.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
E. J. Vega, J. M. Montanero
Summary: In this study, we experimentally investigated the bursting of a bubble covered with a surfactant. We found that the bubble bursting time is longer compared to a surfactant-free bubble due to interfacial elasticity. Furthermore, the Marangoni stress drives liquid flow that allows the jet to escape from the end-pinching mechanism within a certain surfactant concentration range.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Guofu Sun, Yi Zhan, Tomio Okawa, Mitsuhiro Aoyagi, Akihiro Uchibori, Yasushi Okano
Summary: Experiments were conducted on liquid jets ejected from oval nozzles to investigate the effects of nozzle orifice shape on jet behavior. The study found that the liquid jet exhibited different characteristics at different liquid flow rates. Correlations were established to predict the liquid jet state and characteristics of the secondary droplets produced during jet impact onto a solid surface. This research extended the available knowledge on liquid jet behavior.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Jeonghoon Lee, Laurent Zimmer, Takeshi Saito, Shinji Nakaya, Mitsuhiro Tsue
Summary: This study investigates the effects of spatial resolution on DMD amplitudes and spatial mode strengths, and proposes scaling factors to correct for the resolution differences. The results show that the proposed scaling factors successfully normalize the amplitudes and spatial modes, allowing for quantitative comparison of data obtained with different spatial resolutions. This study is significant for analyzing spatiotemporal data in various fields.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Yanli Zhao, Shibing Kuang, Xiaoliang Zhang, Mingjun Xu
Summary: This study experimentally investigates the dynamic process of water droplet impacting different wood surfaces and analyzes and discusses the impacting phenomena, phenomena distribution, droplet spreading dynamics, and maximum spread factor. The results show that the impacting process can be distinguished by Weber numbers and Reynolds numbers, and can be predicted by mathematical expressions.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Aakhash Sundaresan, Atul Srivastava, Callum Atkinson
Summary: This study presents the first-ever application of an advanced methodology, combining two-color laser-induced phosphorescence and particle image velocimetry, to investigate the heat transfer mechanisms on the surface of a cylinder placed inside a confined square duct. The technique allows for simultaneous measurement of velocity and temperature fields, reducing the complexity and costs associated with separately measuring temperature distributions. Experimental observations show that increasing the mass flow rate enhances heat removal from the cylinder surface, and increasing the cylinder heat input enhances heat transfer in the rear portion of the cylinder.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Harish K. Patel, Sukhjeet Arora, Rutuja Chavan, Bimlesh Kumar
Summary: This study experimentally analyzed the multiscale statistical assessment of scour depth surrounding spur dikes with downward seepage. The research found that seepage affects the morphological behavior and hydrodynamic characteristics of the channel bed, leading to changes in scour formation. The rate of scour depth changes initially increases with higher seepage velocity but eventually becomes constant over time.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Justas Sereika, Paulius Vilkinis, Gediminas Skarbalius, Algis Dziugys, Nerijus Pedisius
Summary: This study experimentally investigated the pulsatile flow structure based on a transitional-type cavity. It was found that the pulsation amplitude has a more significant effect on the dynamics of recirculation zone than the pulsation frequency. Pulsatile flow can reduce the size of the recirculation zone.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Merav Arogeti, Eran Sher, Tali Bar-Kohany
Summary: This study provides a detailed exploration of the events that occur when a droplet hits a dry solid surface of various small sizes, with a focus on the deposition, receding breakup, and prompt splash phases. By utilizing non-dimensional analysis and graphical representation, the boundaries between different events are defined, and criteria for differentiation based on target-to-drop ratio, Reynolds, and Webber numbers are presented.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Tianxiong Li, Fei Wen, Yingchun Wu, Botong Wen, Lei Wang, Jinxin Guo, Xuecheng Wu
Summary: This study investigates the structure of the flow field induced by a strut in a scramjet and its influence on flame stabilization. Experimental and numerical analyses reveal that the flow field exhibits features beneficial for flame stabilization, but the asymmetry of the flow poses a challenge to flame establishment.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Syed Ehtisham Gillani, Yasir M. Al-Abdeli
Summary: This study investigates the asymmetry in bluff-body stabilised annular jets and finds that swirl can significantly mitigate the asymmetry and restore the symmetry of the jets. Moreover, increasing the Reynolds number and the swirl intensity can both decrease the asymmetry of the jets.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Utsav Bhardwaj, Rabindra Kumar, Shyama Prasad Das
Summary: This study presents an experimental investigation on flooding phenomenon in a pulsating heat pipe (PHP) unit cell, and analyzes the impact of flooding on the performance of PHP. The study recognizes three different flooding mechanisms and finds that currently accepted correlations for predicting flooding velocity are inaccurate. The study emphasizes the need for further research on flooding in PHPs.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)
Article
Thermodynamics
Yunpeng Xue, Yongling Zhao, Shuo-Jun Mei, Yuan Chao, Jan Carmeliet
Summary: This study investigates the impact of building morphology on local climate, air quality, and urban microclimate. The researchers conducted an experimental investigation in a large-scale water tunnel, analyzing heat and flow fields using Laser-induced Fluorescence (LIF) and Particle Image Velocimetry (PIV). The findings show that factors such as canyon configuration, buoyant force, and approaching flow magnitude significantly influence fluid flow in street canyons, and the morphology of the street canyon dominates ventilation rate and heat flux. For example, changing the aspect ratio of a street canyon can lead to a significant change in air ventilation rate, ranging from 0.02 to 1.5 under the same flow conditions.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2024)