Enhancing Heat Transfer Performance in Heat Exchangers using Nanoparticle-Infused Fluids: A Computational Approach Wajeeh K. Hasan, Mohammed Ali Mahmood Hussein, Ali Najim Abdullah Saieed Cfd Letters, 2025 The study examines the impact of hybrid nanoparticle-based materials on the flow performance in a tube with a consistent surface temperature of 373 K. The simulation of the flow was conducted using Ansys 2024 and two-dimensional governing equations for partial differentials. This simulation utilized three distinct concentrations of hybrid nanomaterials Al2O3–Cu to observe their effects. Al2O3–Cu nanoparticles are dispersed in water at volume ratios of 1%, 5%, and 100%. The fluid velocity varied between 0.1 and 1.5 m/s, while the input temperature was 25 °C (~298 K). The current study examines three cases of dimples: 15, 30, and 45 concave/convex dimples. Increasing the concentration of Al2O3-Cu nanoparticles in water is shown to improve certain physical properties while decreasing others. Moreover, when the concentration of nanoparticles grows, the Nusselt number (Nu) also rises. The thermal performance factor is enhanced with an increase in the number of dimples. The study shows that the heat transfer coefficient increases with hybrid nanoparticle concentration, achieving enhancements of 2.14%, 10.8%, and 21.82% for 1%, 5%, and 10% concentrations at 1 m/s. The highest increase of 22.22% compared to pure water occurs at 1.5 m/s with a 10% concentration. Compared to a smooth pipe, improvements are 15.67%, 30.01%, and 37.72% for three cases, with case 2 (30 concave/convex dimples) exhibiting the best thermal performance factor.
Thermoelectric-Driven Room Air Cooling via a Multi-U Shaped Heat Sink System Faez Abid Muslim Abd Ali, Safaa Mohemmed Ali Mohemmed Reda, Mohammed A. Mahmood Hussein, Sadoon K. Ayed, Lina Jassim, et al. International Journal of Heat and Technology, 2023 The compact sizing and lightweight characteristics of thermoelectric devices have garnered significant attention, leading to their widespread use across varied fields. This study experimentally investigates the application of thermoelectric refrigeration in air conditioning, employing a moderately designed system. A unique, multi-U shaped heat sink system was developed, wherein thermoelectric devices were affixed onto rectangular tubes befitting their dimensions, thereby facilitating water as an auxiliary medium for energy transfer. This design enabled the transformation of cold water from the system's cold side to the indoor unit's water-air heat exchanger, while hot water was directed to the outdoor evaporative cooling tank. A Peltier-type thermoelectric device was harnessed for this experiment. The devised setup was subjected to multiple tests to evaluate its thermal performance under the climate conditions of Najaf. Preliminary results validated the effectiveness of the water cooling methodology, with the water temperature observed to decrease to 14℃. Consequently, the room air was cooled by the water-air heat exchanger, reaching temperatures between 20℃ and 24℃. This study underscores the potential of integrating thermoelectric devices with innovative heat sink designs for efficient room air cooling
IDENTIFYING THE EFFECT OF CHANNEL WALL RIPPLE HEIGHT ON MULTIPHASE FLOW Mohammed Ali Mahmood Hussein, Wajeeh Kamal Hasan Eastern European Journal of Enterprise Technologies, 2022 With the development of simulation technology and the ability to obtain accurate numerical results, as well as with the development of information technology, software that can solve numerical problems has become necessary to see physical changes that cannot be seen by the human eye. Multiphase stream field is settled utilizing the volume of fluid (VOF) method, and the flow equations are assessed and addressed mathematically by the notable limited volume approach. As a multiphase framework without mass exchange, air/water stream is considered. For practically all cases considered in this review, the heat transfer coefficient is higher. In any case, a critical punishment pressure drop was observed especially for high mass courses through undulating channels. A wavy channel with a variable wave height was simulated to see the variables of the flow process for multi-phase materials with a square cross-section, where different speeds were used for the inlet duct for air, water and steam. The results proved that the increase in the height of the channel wall wave works to obstruct the flow and thus increases the time required for the fluid to reach the exit area. The value of time required for steam and air to reach the exit area at the channel wall wave height of 25 mm and the flow velocity of 0.1 m/s was 6.01 s, which is the longest time it took for the fluid to reach the exit area compared to other cases. The pressure value reflects the amount of turbulence in the flow process, and it's crucial for thermal improvements based on flow turbulence. The entrance flow velocity is 0.1 m/s and the wall wave height is 25 mm at a time of 2 s, when the pressure reaches 873.7 Pa.
Temperature-dependent mechanical properties of Al/Cu nanocomposites under tensile loading via molecular dynamics method Mohammed Ali Abdulrehman, Mohammed Ali Mahmood Hussein, Ismail Ibrahim Marhoon Curved and Layered Structures, 2022 Al-Cu Nanocomposites (NCs) are widely used in industrial applications for their high ductility, light weight, excellent thermal conductivity, and low-cost production. The mechanical properties and deformation mechanisms of Metal Matrix NCs (MMNCs) strongly depend on the matrix microstructure and the interface between the matrix and the second phase. The present study relies on Molecular Dynamics (MD) to investigate the effects of temperature on the mechanical properties and elastic and plastic behavior of the Al-Cu NC with single-crystal and polycrystalline matrices. The effects of heating on microstructural defects in the aluminum matrix and the Al/Cu interface were also addressed in the following. It was found that the density of defects such as dislocations and stacking fault areas are much higher in samples with polycrystalline matrices than those with single-crystal ones. Further, by triggering thermally activated mechanisms, increasing the temperature reduces the density of crystal defects. Heating also facilitates atomic migration and compromises the yield strength and the elastic modulus as a result of the increased energy of atoms in the grain boundaries and in the Al-Cu interface. The results showed that the flow stress decreased in all samples by increasing the temperature, making them less resistant to the plastic deformation.
Natural convection heat transfer in a concentric annulus vertical cylinders embedded with porous media Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2020
Experimental investigation of thermal performance and climatological parameters for trough parabolic collector with manual tracking system Journal of Mechanical Engineering Research and Developments, 2020
Numerical Implementation of Direct and Reverse Flow for Plate Heat Exchanger. HS Majdi, WK Hasan, MA Mahmood Hussein, LJ Habeeb Mathematical Modelling of Engineering Problems 10 (2) , 2023 2023.0 Citations: 1
IDENTIFYING THE EFFECT OF CHANNEL WALL RIPPLE HEIGHT ON MULTIPHASE FLOW WKH Mohammed Ali Mahmood Hussein Eastern-European Journal of Enterprise Technologies , 2022 2022.0
Temperature-dependent mechanical properties ofAl/Cu nanocomposites under tensile loading viamolecular dynamics method IIM Mohammed Ali Abdulrehman*, Mohammed Ali Mahmood Hussein Curved and Layered Structures 9 (1), 96-104 , 2022 2022.0
Mixed convection around a circular cylinder in a buoyancy-opposing flow MAM Hussein Design Engineering 2021 (8), 10353-10371 , 2021 2021.0
New environmental friendly corrosion inhibitor of mild steel in hydrochloric acid solution: Adsorption and thermal studies TA Salman, QA Jawad, MAM Hussain, AA Al-Amiery, LM Shaker, ... Cogent Engineering 7 (1), 1826077 , 2020 2020.0 Citations: 36
Adsorption, temperature and corrosion inhibition studies of a coumarin derivatives corrosion inhibitor for mild steel in acidic medium: gravimetric and theoretical investigations LMAAAA D.S. Zinad,1 Q.A. Jawad,2 M.A.M. Hussain,3 A. Mahal,4 Int. J. Corros. Scale Inhib 9 (1), 134–151 , 2020 2020.0 Citations: 93
Natural convection heat transfer in a concentric annulus vertical cylinders embedded with porous media MA Mahmood, MA Mustafa, MM Al-Azzawi, AR Abdullah Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 66 (2 … , 2020 2020.0 Citations: 8
The Influence of Water Temperature Change on Static Pressure in a Centrifugal Pump MA Mahmood, MAS Mustafa, LJ Habeeb 2019 1st AL-Noor International Conference for Science and Technology (NICST … , 2019 2019.0
Numerical Investigation of Free Convection Heat Transfer from Two-Dimensional Rectangular Enclosure with Discrete Isothermal Heating from Bottom Side LJH Mohammed Ali Mahmood Hussein1, Ameer Resan Kalash2, Ibtisam A. Al-Beldawee3* International Journal of Heat and Technology 37 (No. 4), 1141-1150 , 2019 2019.0 Citations: 1
Novel ecofriendly corrosion inhibition of mild steel in strong acid environment: Adsorption studies and thermal effects AAHKMST T.A. Salman,1 Q.A. Jawad,2 M.A.M. Hussain,3 A.A. Al-Amiery,2* L. Mohamed International Journal of Corrosion and Scale Inhibition 8 (No. 4), 1123–1137 , 2019 2019.0 Citations: 67
The Effect of Workers and Computers on the Indoor Air Flow in Office Room M Mahmood, W Hasan Journal of Al-Rafidain University College For Sciences (Print ISSN: 1681 … , 2014 2014.0 Citations: 1
Transient Natural Convection Heat Transfer of Al2O3-Water Nanofluid in Enclosure: A Numerical Study WK Hasan, MA Mahmood Int. Ref. J. Eng. Sci 3 (3), 41-50 , 2014 2014.0 Citations: 1
Transient Three-Dimensional Natural Convection in Confined Porous Media with Time-Periodic Boundary Conditions W Hasan, M Mahmood Journal of Al-Rafidain University College For Sciences (Print ISSN: 1681 … , 2013 2013.0 Citations: 1
The effect of rotational speed variation on the velocity vectors in the single blade passage centrifugal pump (part 2) MAM Hussein, WK Hasan Continuity 17, 1 , 2013 2013.0 Citations: 2
Identifying the Effect of Channel Wall Ripple Height on Multiphase Flow MAM Hussein, WK Hasan Eastern-European Journal of Enterprise Technologies 4 (7), 51-60 , 0
Numerical Investigation of Natural Convection Enhancement from Trapezoidal Interrupted Pin-Fins WK Hasan, MAM Hussein, AN Abdullah
Experimental Investigation Of Thermal Performance And Climatological Parameters For Trough Parabolic Collector With Manual Tracking System MA Mahmood, KA Khalaf, IM Abed, LJ Habeeb Citations: 3
Amplitude Effects on Natural Convection in a Porous Enclosure having a Vertical Sidewall with Time-varying Temperature LDWK Hasan, LDMA Mahmood
The effect of rotational speed variation on the static pressure in the centrifugal pump (part 1) MAM Hussein
MOST CITED SCHOLAR PUBLICATIONS
Adsorption, temperature and corrosion inhibition studies of a coumarin derivatives corrosion inhibitor for mild steel in acidic medium: gravimetric and theoretical investigations LMAAAA D.S. Zinad,1 Q.A. Jawad,2 M.A.M. Hussain,3 A. Mahal,4 Int. J. Corros. Scale Inhib 9 (1), 134–151 , 2020 2020.0 Citations: 93
Novel ecofriendly corrosion inhibition of mild steel in strong acid environment: Adsorption studies and thermal effects AAHKMST T.A. Salman,1 Q.A. Jawad,2 M.A.M. Hussain,3 A.A. Al-Amiery,2* L. Mohamed International Journal of Corrosion and Scale Inhibition 8 (No. 4), 1123–1137 , 2019 2019.0 Citations: 67
New environmental friendly corrosion inhibitor of mild steel in hydrochloric acid solution: Adsorption and thermal studies TA Salman, QA Jawad, MAM Hussain, AA Al-Amiery, LM Shaker, ... Cogent Engineering 7 (1), 1826077 , 2020 2020.0 Citations: 36
Natural convection heat transfer in a concentric annulus vertical cylinders embedded with porous media MA Mahmood, MA Mustafa, MM Al-Azzawi, AR Abdullah Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 66 (2 … , 2020 2020.0 Citations: 8
Experimental Investigation Of Thermal Performance And Climatological Parameters For Trough Parabolic Collector With Manual Tracking System MA Mahmood, KA Khalaf, IM Abed, LJ Habeeb Citations: 3
The effect of rotational speed variation on the velocity vectors in the single blade passage centrifugal pump (part 2) MAM Hussein, WK Hasan Continuity 17, 1 , 2013 2013.0 Citations: 2
Numerical Implementation of Direct and Reverse Flow for Plate Heat Exchanger. HS Majdi, WK Hasan, MA Mahmood Hussein, LJ Habeeb Mathematical Modelling of Engineering Problems 10 (2) , 2023 2023.0 Citations: 1
Numerical Investigation of Free Convection Heat Transfer from Two-Dimensional Rectangular Enclosure with Discrete Isothermal Heating from Bottom Side LJH Mohammed Ali Mahmood Hussein1, Ameer Resan Kalash2, Ibtisam A. Al-Beldawee3* International Journal of Heat and Technology 37 (No. 4), 1141-1150 , 2019 2019.0 Citations: 1
The Effect of Workers and Computers on the Indoor Air Flow in Office Room M Mahmood, W Hasan Journal of Al-Rafidain University College For Sciences (Print ISSN: 1681 … , 2014 2014.0 Citations: 1
Transient Natural Convection Heat Transfer of Al2O3-Water Nanofluid in Enclosure: A Numerical Study WK Hasan, MA Mahmood Int. Ref. J. Eng. Sci 3 (3), 41-50 , 2014 2014.0 Citations: 1
Transient Three-Dimensional Natural Convection in Confined Porous Media with Time-Periodic Boundary Conditions W Hasan, M Mahmood Journal of Al-Rafidain University College For Sciences (Print ISSN: 1681 … , 2013 2013.0 Citations: 1
IDENTIFYING THE EFFECT OF CHANNEL WALL RIPPLE HEIGHT ON MULTIPHASE FLOW WKH Mohammed Ali Mahmood Hussein Eastern-European Journal of Enterprise Technologies , 2022 2022.0
Temperature-dependent mechanical properties ofAl/Cu nanocomposites under tensile loading viamolecular dynamics method IIM Mohammed Ali Abdulrehman*, Mohammed Ali Mahmood Hussein Curved and Layered Structures 9 (1), 96-104 , 2022 2022.0
Mixed convection around a circular cylinder in a buoyancy-opposing flow MAM Hussein Design Engineering 2021 (8), 10353-10371 , 2021 2021.0
The Influence of Water Temperature Change on Static Pressure in a Centrifugal Pump MA Mahmood, MAS Mustafa, LJ Habeeb 2019 1st AL-Noor International Conference for Science and Technology (NICST … , 2019 2019.0
Identifying the Effect of Channel Wall Ripple Height on Multiphase Flow MAM Hussein, WK Hasan Eastern-European Journal of Enterprise Technologies 4 (7), 51-60 , 0
Numerical Investigation of Natural Convection Enhancement from Trapezoidal Interrupted Pin-Fins WK Hasan, MAM Hussein, AN Abdullah
Amplitude Effects on Natural Convection in a Porous Enclosure having a Vertical Sidewall with Time-varying Temperature LDWK Hasan, LDMA Mahmood
The effect of rotational speed variation on the static pressure in the centrifugal pump (part 1) MAM Hussein