Article
Chemistry, Physical
Selvan Pugalenthi, Jebakani Devaraj, Jeyasubramanian Kadarkaraithangam, Jones Joseph Jebaraj Dharmaraj
Summary: This study reports the stabilizing action of inorganic CaCO3 nanoparticles on the thermal conductivity of nanofluids containing Y2O3, ZrO2, and YSZ nanoparticles. The nanoparticles obtained from the gel combustion method after calcination show nano-size rare earth metal oxide particles. The nanofluids prepared with these nanoparticles exhibit higher thermal conductivity but lower stability. Sodium dodecyl sulfate (SDS) was used to improve stability but decreased thermal conductivity. Nano-CaCO3 particles were found to provide better stability than SDS. The nanofluid with Y2O3 + CaCO3 shows a remarkable 29.18% higher thermal conductivity than the base fluid, making it suitable for heat exchanger applications. (c) 2022 Elsevier B.V. All rights reserved.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Zafar Said, Maham Aslam Sohail, Rashmi Walvekar, Changhui Liu
Summary: This study investigates the effect of functionalized-multi walled carbon nanotubes (f-MWCNTs/water) nanofluid on stability and thermophysical properties. The results show that the optimum volume concentration of 0.10 vol.% exhibits the best stability and enhanced thermal conductivity. The research provides insights for incorporating the optimum sonication duration in nanofluid studies.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
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
Thermodynamics
Yuguo Gao, Yitao Ren, Minghan Xu, Junjun Liu, Arun S. Mujumdar, Agus P. Sasmito
Summary: This article prepared water-based graphene oxide (GO), Al2O3, and GO-Al2O3 hybrid nanofluids using a two-step approach, and investigated the effects of thermal cycling on the stability and thermal conductivity of nanofluid ice slurry. The study also proposed a thermal conductivity model considering thermal cycling and mass fraction. Results showed that the stability of nanofluids decreased gradually with the increase of phase change cycles, but tended to stabilize after 6 cycles. The thermal conductivity of GO-Al2O3 hybrid nanofluid ice slurry was between that of GO and Al2O3 aqueous single nanofluid after phase change thermal cycling.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Engineering, Environmental
Lalit Kumar, Vikas Yadav, Meenakshi Yadav, Neha Saini, Karthikeyan Jagannathan, Vajjiravel Murugesan, V. Ezhilselvi
Summary: In this study, orange peel biochar was used as an adsorbent for removing phenol from contaminated water. Three different types of biochar were prepared at different temperatures and characterized using various spectroscopic techniques. The highest adsorption efficiency and capacity were achieved with the biochar activated at 700 degrees C (B700). The adsorption followed Langmuir isotherm and pseudo-second order kinetics. The high-temperature activation increased the porosity and number of active sites, leading to improved adsorption efficiency.
WATER ENVIRONMENT RESEARCH
(2023)
Article
Engineering, Mechanical
Aamir Minhas-Khan, Morteza Ghafar-Zadeh, Tina Shaffaf, Saghi Forouhi, Anthony Scime, Sebastian Magierowski, Ebrahim Ghafar-Zadeh
Summary: Research on informational Deoxyribonucleic Acid (iDNA) has shown that UV-Vis spectrophotometry can accurately measure dry-state DNA and its residues, with an accuracy larger than 98%. The study also revealed that the hydrophilicity and hydrophobicity of the surface do not significantly affect DNA retrieval over a one-month time period.
Article
Plant Sciences
Rosario Mare, Roberta Pujia, Samantha Maurotti, Simona Greco, Antonio Cardamone, Anna Rita Coppoletta, Sonia Bonacci, Antonio Procopio, Arturo Pujia
Summary: Citrus peels, often considered food waste, contain various beneficial polyphenols, especially flavonoids, which possess strong antioxidant and free radical scavenging effects. They can potentially benefit human health.
Article
Engineering, Environmental
Tao Li, Lin Dai, Yixin Huang, Siwen Pan, Zijun Pang, Jing Zou
Summary: A new spectrophotometric method for Cr(VI) determination was developed, showing rapid detection, high accuracy, and strong anti-interference ability. This method, based on the oxidative coloration of DPD and Cr(VI), demonstrated satisfactory accuracy in natural water samples and good anti-interference performance towards various common co-existing metallic ions.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Anthony Hutin, Marcio S. Carvalho
Summary: Direct sonication with probe is an efficient method to disperse nanoparticles and obtain a stable nanofluid, but may lead to tip erosion and contamination. Centrifugation and/or dilution can decrease the influence of contamination particles on nanofluid characterization.
Article
Environmental Sciences
Rohinee M. Barai, Devesh Kumar, Atul Wankhade, Aamir R. Sayed, Anup A. Junankar
Summary: Nanofluids, with their remarkable thermal characteristics and potential applications, are expected to play a significant role in future thermal management systems.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Ganesh Kumar Poongavanam, Vinothkumar Sivalingam, Santosh Ravichandran, Amrit Kumar Thakur, Sung Chul Kim
Summary: In this study, response surface methodology was used to optimize the thermal and electrical conductivity characteristics of a nanofluid comprising MWCNT-SG/H2O blend. The results showed that the MWCNT volume concentration and operating temperature significantly influence the thermal and electrical conductivities of the nanofluid, with experimental results confirming the optimization outcomes.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Thermodynamics
Balaji Bakthavatchalam, Khairul Habib, Cecilia D. Wilfred, R. Saidur, Bidyut Baran Saha
Summary: This paper investigates the application of an ionic liquid in nanofluids and compares its stability and thermal properties with conventional surfactants. The results show that the inclusion of the ionic liquid improves the thermal conductivity and stability of the nanofluid. However, the electrostatic repulsive force of the ionic liquid decreases with increasing temperature. The nanofluid containing the ionic liquid demonstrates the most significant enhancement in thermal conductivity at 303 K and a maximum dispersion stability of over one month.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Analytical
Georgina C. Kalogerakis, Hardiljeet K. Boparai, Minqing Ivy Yang, Brent E. Sleep
Summary: A fast and efficient method for measuring persulfate concentrations in aqueous samples has been developed, which is high-throughput, cost-effective, and environmentally friendly. The method has been validated in terms of linearity, LOD, LOQ, accuracy, precision, robustness, and selectivity.
Article
Mechanics
S. Mukherjee, P. C. Mishra, P. Chaudhuri, N. Ali, S. A. Ebrahim
Summary: An experimental study was conducted to investigate the thermal performance of water/titania nanofluid under nucleate pool boiling. The results showed an increase in heat transfer coefficient as heat flux and weight concentration increased, but the enhancement decreased at higher weight concentrations. New correlations with high prediction accuracies were proposed to relate wall superheat temperature with heat flux and heat transfer coefficient.
Article
Energy & Fuels
Praveen Kanti, K. Sharma, Kyathanahalli Marigowda Yashawantha, Mehdi Jamei, Zafar Said
Summary: The study investigated the thermal conductivity and viscosity of fly ash-copper hybrid nanofluid for solar energy applications, showing significant enhancements in dynamic viscosity and thermal conductivity at specific concentrations and temperatures. Models were proposed to estimate the nanofluid properties, and a neural network was utilized to predict effective thermal conductivity and relative viscosity. The outcomes were used to calculate Mouromtseff number and heat transfer efficiency for solar energy applications.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Thermodynamics
M. S. Naghavi, B. C. Ang, B. Rahmanian, S. Naghavi, S. Bazri, R. Mahmoodian, H. S. C. Metselaar
APPLIED THERMAL ENGINEERING
(2020)
Review
Materials Science, Ceramics
Subhrojyoti Mazumder, Hendrik Simon Cornelis Metselaar, Nazatul Liana Sukiman, Nurin Wahidah Mohd Zulkifli
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Thermodynamics
Emad Sadeghinezhad, Amir Reza Akhiani, Hendrik Simon Cornelis Metselaar, Sara Tahan Latibari, Mehdi Mehrali, Mohammad Mehrali
APPLIED THERMAL ENGINEERING
(2020)
Review
Energy & Fuels
F. S. Javadi, H. S. C. Metselaar, P. Ganesan
Article
Multidisciplinary Sciences
Md. Toasin Hossain Aunkor, Topu Raihan, Shamsul H. Prodhan, H. S. C. Metselaar, Syeda Umme Fahmida Malik, Abul Kalam Azad
ROYAL SOCIETY OPEN SCIENCE
(2020)
Article
Materials Science, Ceramics
Chia Ching Kee, Bee Chin Ang, Hendrik Simon Cornelis Metselaar
Summary: This paper systematically investigated calcium silicate hydrate doped with different amounts of Eu using hydrothermal and coprecipitation methods. The incorporation of Eu inhibited crystallite growth and increased thermal stability, with hydrothermal synthesis showing higher crystallinity and photoluminescence intensity compared to coprecipitation. The Eu-CSH powders demonstrated potential for nanomedicine applications requiring biocompatibility and light emission.
CERAMICS INTERNATIONAL
(2021)
Article
Construction & Building Technology
Iman Asadi, Payam Shafigh, Mohammad Hashemi, Amir Reza Akhiani, Mehdi Maghfouri, Behrang Sajadi, Norhayati Mahyuddin, Masoud Esfandiari, Hamed Rezaei Talebi, Hendrik Simon Cornelis Metselaar
Summary: This study investigated the thermophysical properties of cement mortars containing different percentages of OPBC and found that replacing sand with OPBC decreases density, thermal conductivity, and thermal diffusivity while increasing specific heat capacity. The higher porosity of OPBC compared to normal sand affects the thermal properties of the mortar, making OPBC mortar a sustainable and energy-efficient building material.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Energy & Fuels
Alireza Esmaeilzadeh, Mahyar Silakhori, Nik Nazri Nik Ghazali, Hendrik Simon Cornelis Metselaar, Azuddin Bin Mamat, Mohammad Sajad Naghavi Sanjani, Soudeh Iranmanesh
Article
Green & Sustainable Science & Technology
M. S. Naghavi, H. S. C. Metselaar, B. C. Ang, G. Zamiri, A. Esmailzadeh, B. Nasiri-Tabrizi
Summary: Current solar water heaters are facing performance and efficiency challenges, but using phase change materials as thermal storage units is a promising solution. Comparing full-scale experimental studies of solar water heaters with latent heat storage, this research provides guidance for future development and optimization. Further investigation is needed to improve system optimization, infrastructure, cost, and the impact of weather conditions in different climates.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Review
Biochemistry & Molecular Biology
Tamrin Nuge, Ziqian Liu, Xiaoling Liu, Bee Chin Ang, Andri Andriyana, Hendrik Simon Cornelis Metselaar, Md Enamul Hoque
Summary: This paper provides a comprehensive summary of the latest developments in the treatment of Volumetric Muscle Loss (VML) using natural polymer-based tissue scaffolding. It highlights the importance of tissue engineering approaches and cell-based therapies for VML, as well as the biological effects of natural polymers on cell regeneration and growth. Natural polymers, particularly proteins and polysaccharides, are considered attractive options for developing scaffolds for muscle cell regeneration due to their bio-characteristics.
Article
Materials Science, Multidisciplinary
Djahida Boudouh, Djamel Hamana, Hendrik Simon Cornelis Metselaar, Slimane Achour, Loubna Chetibi, Amir Reza Akhiani
Summary: This study reported the synthesis of Fe3O4-C nanocomposite through thermal decomposition of iron precursor in an organic medium, demonstrating successful synthesis at low temperature using Olive Leaves Extract. Various techniques such as X-ray diffraction and energy-dispersive X-ray were used to investigate the formation process of the product, while FESEM and HRTEM were utilized to reveal the formation of carbon structure on the surface of Fe3O4 nanoparticles.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2021)
Article
Chemistry, Physical
Djahida Boudouh, Rabia Ikram, Badrul Mohamed Jan, Hendrik Simon Cornelis Metselaar, Djamel Hamana, George Kenanakis
Summary: In this study, water-based drilling fluids containing Fe3O4 nanoparticles prepared with olive leaf extract as a reducing and capping agent were investigated. The addition of Fe3O4-NPs at different concentrations resulted in economical and high-performance drilling fluids. The Fe3O4-NPs additive helped increase viscosity and yield point, while reducing fluid loss and mud cake thickness compared to conventional drilling fluids.
Article
Thermodynamics
A. Esmaeilzadeh, N. Nik-Ghazali, H. S. C. Metselaar, M. S. Naghavi, M. Azuddin, S. Iranmanesh
Summary: The experiments investigated the heat transfer characteristics in a sintered wick heat pipe using stable aqueous dispersions of 1-pyrene carboxylic acid (PCA)-functionalized graphene nanofluid. Results showed that thermal conductivity enhancement of nanofluids ranged from 21% to 40% with increasing concentration and temperature. The tilt angle of the heat pipe was found to have a substantial impact on the thermal properties, enhancing thermal performance by 79%. The use of nanofluids reduced heat pipe thermal resistance, with the most significant enhancement in overall heat transfer coefficient achieved at 0.06 mass% by 13.9 kW/K.m(2).
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Chemistry, Physical
Amir Reza Akhiani, Hendrik Simon Cornelis Metselaar, Bee Chin Ang, Mehdi Mehrali, Mohammad Mehrali
Summary: This study introduces a new approach for facile assembly of graphene nanoplatelet (GNP) to overcome the practical application issues of phase change materials (PCMs) in solar-thermal technology. The embedded GNP enhances the loading of paraffin wax and transition enthalpy, resulting in excellent solar-thermal storage efficiency.
MATERIALS TODAY ENERGY
(2022)
Article
Construction & Building Technology
Ahmed Mahmoud Alnahhal, U. Johnson Alengaram, Muhammad Shazril Idris Ibrahim, Sumiani Yusoff, Hendrik Simon Cornelis Metselaar, Petrina Gabriela Johnson
Summary: This study investigated the influence of sand to binder ratio and various by-product materials on the structural grade geopolymer foamed concrete. The use of fine sand was found to improve the mechanical and micro-structural characteristics of the geopolymer foamed concrete. The results showed that the geopolymer foamed concrete had compressive strengths ranging from 27 to 39 MPa. Non-uniform distribution of voids and the formation of calcium aluminosilicate hydrates were also observed.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
