Search Results - "Alawi, Omer A."

Thermal performance enhancement of a flat plate solar collector using hybrid nanofluid by Hussein, Omar A., Habib, Khairul, Muhsan, Ali S., Saidur, R., Alawi, Omer A., Ibrahim, Thamir K.

“…•Experimental hybrid nanofluid based flat plate solar collector was studied.•New hybrid nanofluid increased the outlet temperature compared with water.•A…”
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Thermal conductivity and viscosity models of metallic oxides nanofluids by Alawi, Omer A., Sidik, Nor Azwadi Che, Xian, Hong Wei, Kean, Tung Hao, Kazi, S.N.

“…•Thermal conductivity and viscosity models of nanofluids were reviewed.•Metallic oxides nanofluids (Al2O3, CuO, SiO2 and ZnO) were considered.•Various shapes…”
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A review on preparation methods and challenges of nanofluids by Sidik, Nor Azwadi Che, Mohammed, H.A., Alawi, Omer A., Samion, S.

“…Nanofluid, as a kind of new engineering material consisting of nanometer-sized additives and base fluids, has attracted great attention from investigators for…”
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A hybrid numerical/machine learning model development to improve the bimetal performance in the electric circuit breakers by Mallah, Abdul Rahman, Aljuraid, Nawaf, Alawi, Omer A., Yaseen, Zaher Mundher, Singh, Kamaljeet, Ataki, Adel

“…Bimetals are widely used as a thermal tripping mechanism inside the miniature circuit breakers (MCBs) products when an overload current passes through the…”
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Thermohydraulic analysis of covalent and noncovalent functionalized graphene nanoplatelets in circular tube fitted with turbulators by Tao, Hai, Alawi, Omer A., Hussein, Omar A., Ahmed, Waqar, Abdelrazek, Ali H., Homod, Raad Z., Eltaweel, Mahmoud, Falah, Mayadah W., Al-Ansari, Nadhir, Yaseen, Zaher Mundher

“…Covalent and non-covalent nanofluids were tested inside a circular tube fitted with twisted tape inserts with 45° and 90° helix angles. Reynolds number was…”
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Hybrid nanocomposites impact on heat transfer efficiency and pressure drop in turbulent flow systems: application of numerical and machine learning insights by Tao, Hai, Aldlemy, Mohammed Suleman, Homod, Raad Z., Aksoy, Muammer, Mohammed, Mustafa K. A., Alawi, Omer A., Togun, Hussein, Goliatt, Leonardo, Khan, Md. Munir Hayet, Yaseen, Zaher Mundher

“…This research explores the feasibility of using a nanocomposite from multi-walled carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) for thermal…”
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Experimental Investigation on the Thermophysical and Rheological Behavior of Aqueous Dual Hybrid Nanofluid in Flat Plate Solar Collectors by Ahmed, Mohammed, Meteab, Mohammed, Salih, Qusay, Mohammed, Hussein, Alawi, Omer

“…This work investigates the thermal–physical and rheological properties of hexagonal boron nitride/carbon nanotubes (hBN/CNTs) applied to reinforce water-based…”
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Artificial intelligence models for suspended river sediment prediction: state-of-the art, modeling framework appraisal, and proposed future research directions by Tao, Hai, Al-Khafaji, Zainab S., Qi, Chongchong, Zounemat-Kermani, Mohammad, Kisi, Ozgur, Tiyasha, Tiyasha, Chau, Kwok-Wing, Nourani, Vahid, Melesse, Assefa M., Elhakeem, Mohamed, Farooque, Aitazaz Ahsan, Pouyan Nejadhashemi, A., Khedher, Khaled Mohamed, Alawi, Omer A., Deo, Ravinesh C., Shahid, Shamsuddin, Singh, Vijay P., Yaseen, Zaher Mundher

“…River sedimentation is an important indicator for ecological and geomorphological assessments of soil erosion within any watershed region. Sediment transport…”
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Thermohydraulic performance of thermal system integrated with twisted turbulator inserts using ternary hybrid nanofluids by Alawi, Omer A., Kamar, Haslinda Mohamed, Falah, Mayadah W., Hussein, Omar A., Abdelrazek, Ali H., Ahmed, Waqar, Eltaweel, Mahmoud, Homod, Raad Z., Al-Ansari, Nadhir, Yaseen, Zaher Mundher

“…Mono, hybrid, and ternary nanofluids were tested inside the plain and twisted-tape pipes using k-omega shear stress transport turbulence models. The Reynolds…”
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Double-Slope Solar Still Productivity Based on the Number of Rubber Scraper Motions by Al-Sulttani, Ali O., Ahsan, Amimul, Al-Bakri, Basim A. R., Hason, Mahir Mahmod, Daud, Nik Norsyahariati Nik, Idrus, S., Alawi, Omer A., Macioszek, Elżbieta, Yaseen, Zaher Mundher

“…In low-latitude areas less than 10° in latitude angle, the solar radiation that goes into the solar still increases as the cover slope approaches the latitude…”
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Heat Transfer and Hydrodynamic Properties Using Different Metal-Oxide Nanostructures in Horizontal Concentric Annular Tube: An Optimization Study by Alawi, Omer A., Abdelrazek, Ali H., Aldlemy, Mohammed Suleman, Ahmed, Waqar, Hussein, Omar A., Ghafel, Sukaina Tuama, Khedher, Khaled Mohamed, Scholz, Miklas, Yaseen, Zaher Mundher

“…Numerical studies were performed to estimate the heat transfer and hydrodynamic properties of a forced convection turbulent flow using three-dimensional…”
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Plasmonic nanofluids for high photothermal conversion efficiency in direct absorption solar collectors: Fundamentals and applications by Mallah, Abdul Rahman, Mohd Zubir, Mohd Nashrul, Alawi, Omer A., Salim Newaz, Kazi Md, Mohamad Badry, Ahmad Badarudin

“…With growing interest in the use of solar thermal applications to produce renewable and sustainable energy, coupled with the remarkable progress being made in…”
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Influence of particle concentration and temperature on the thermophysical properties of CuO/R134a nanorefrigerant by Alawi, Omer A., Sidik, Nor Azwadi Che

“…Refrigerant-based nanofluids are termed as nanorefrigerants. They have the potential to enhance the heat transfer performances of refrigeration and…”
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Thermo-physical properties effectiveness on the coefficient of performance of Al2O3/R141b nano-refrigerant by Alawi, Omer A., Salih, Jassim Mohammed, Mallah, A.R.

“…The current investigation examined the impact of thermo-physical characteristics on the coefficient of performance (COP) came about through incorporation of…”
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Thermal efficiency of a flat-plate solar collector filled with Pentaethylene Glycol-Treated Graphene Nanoplatelets: An experimental analysis by Alawi, Omer A., Mohamed Kamar, Haslinda, Mallah, A.R., Kazi, S.N., Sidik, Nor Azwadi Che

“…•Thermophysical properties of covalently functionalized Pentaethylene Glycol-Treated Graphene Nanoplatelets were measured.•Thermal efficiency of PEG-GNPs…”
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Heat transfer and pressure drop investigation through pipe with different shapes using different types of nanofluids by Abdelrazek, Ali H., Kazi, S. N., Alawi, Omer A., Yusoff, Nukman, Oon, Cheen Sean, Ali, Hafiz Muhammad

“…In the present study, the heat transfer and hydrodynamic analysis of flow through single-pipe heat exchangers of circular and square cross-sectional…”
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Thermal performance evaluation for alumina coated MWCNTs composite nanofluid in annular passage of various eccentricities by Abdelrazek, Ali H., Alawi, Omer A., Kazi, S.N., Yusoff, Nukman

“…In this paper, numerical and experimental work was conducted to evaluate Al2O3-MWCNTs/DW hybrid nanofluids thermal performance in an annular passage of various…”
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Daily scale air quality index forecasting using bidirectional recurrent neural networks: Case study of Delhi, India by Pande, Chaitanya Baliram, Kushwaha, Nand Lal, Alawi, Omer A., Sammen, Saad Sh, Sidek, Lariyah Mohd, Yaseen, Zaher Mundher, Pal, Subodh Chandra, Katipoğlu, Okan Mert

“…This research was established to accurately forecast daily scale air quality index (AQI) which is an essential environmental index for decision-making…”
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The influence of covalent and non-covalent functionalization of GNP based nanofluids on its thermophysical, rheological and suspension stability properties by Hussein, Omar A, Habib, Khairul, Saidur, R, Muhsan, Ali S, Shahabuddin, Syed, Alawi, Omer A

“…Covalent functionalization (CF-GNPs) and non-covalent functionalization (NCF-GNPs) approaches were applied to prepare graphene nanoplatelets (GNPs). The impact…”
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Graphene nanoplatelets and few-layer graphene studies in thermo-physical properties and particle characterization by Alawi, Omer A., Sidik, Nor Azwadi Che, Kazi, S. N., Najafi, G.

“…The current investigation has presented a new synthesis technique to prepare pentaethylene glycol-treated graphene nanoplatelets (PEG-GnP) and pentaethylene…”
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