Mohamed I. Hassan Ali

Khalifa University of Science and Technology

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Kabbir Ali

Khalifa University of Science and Technology

Ayoola T. Brimmo

New York University

Rashid K. Abu Al‐Rub

Khalifa University of Science and Technology

Kozo Saito

University of Kentucky

Hassan A. Arafat

Khalifa University of Science and Technology

Youssef Shatilla

Idaho National Laboratory

Kamran A. Khan

Khalifa University of Science and Technology

Kazunori Kuwana

Tokyo University of Science

Abhijeet Raj

Indian Institute of Technology Delhi

G. M. Faeth

University of Michigan–Ann Arbor

Cooperative Institutions

Khalifa University of Science and Technology

Cairo University

University of Kentucky

Ain Shams University

Mayo Clinic

University Hospital Limerick

Institute of Science and Technology

Technology Innovation Institute

Sadjad University of Technology

University of Michigan–Ann Arbor

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A case of spontaneous coronary artery dissection presenting with acute anterior wall myocardial infarction in a young adult male – an increasingly recognized rare disease

Journal of Community Hospital Internal Medicine Perspectives (2018)

Mohamed Taha Htun Latt Jaafar Al‐Khafaji Mohamed I. Hassan Ali Richard Seher

Background: Spontaneous coronary artery dissection (SCAD) is increasingly recognized as an important cause of myocardial infarction and sudden death. Although some correlations have been noted in relation to aetiology, no direct causes have been identified in a large number of patients. Most of the patients are women in peripartum period or of childbearing age, with few if any risk factors for coronary heart disease. In men, however, risk factors for atherosclerosis are more prevalent in cases of SCAD Case report: We report a case of a 43-years-old healthy male, with no known risk factors, who presented with ischemic chest pain and elevated troponin levels. He underwent an emergent percutaneous transluminal coronary angiography which revealed a total occlusion of the left anterior descending artery at its origin with an evidence of spontaneous dissection as the cause of the occlusion, which was subsequently treated with placement of a drug-eluting stent and thrombectomy from the distal occluded portion. This case highlights the importance of including spontaneous coronary artery dissection as a cause of ischemic cardiac insults and illustrates the approach to treatment. Conclusion: Internists should have a low threshold of clinical suspicion for SCAD especially in a young patient with no known risk factors and should know the importance of emergency in management.

Scad

Etiology

10.1080/20009666.2018.1440855

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Citations (4)

RETRACTED ARTICLE: AHI: a hybrid machine learning model for complex industrial information systems

Journal of Combinatorial Optimization (2023)

Mustafa Musa Jaber Mohamed I. Hassan Ali Sura Khalil Mustafa Mohammed Jassim Ahmed Alkhayyat

10.1007/s10878-023-00988-w

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On the Cast House Exergy Management

Light Metals (2016)

Ayoola T. Brimmo Mohamed I. Hassan Ali

The energy efficiency of aluminum casting furnaces has been widely reported. However, the conventional energy efficiency analyses are based on the first law of thermodynamics which do not shed adequate light on the processes' degradation of energy. This just gives a general idea of the furnace's performance with no reference to possible improvement strategies. In this study, we apply exergy analyses on the aluminum holding and melting furnaces to identify the location and causes of energy degradation. The exergy analyses which are based on a real life furnace conditions highlight the possible locations for technology improvement in a typical cast house. With this established, methods of minimizing the cast house's exergy losses are assessed.

Exergy efficiency

Degradation

10.1007/978-3-319-48251-4_131

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Syngas-Diesel Dual-Fuel Engine Performance Using H2/Co Top Gases from the Steel Industry Furnaces

Kabbir Ali Mohamed I. Hassan Ali

This study aims to utilize H2-CO-rich waste gases as an alternative energy source for power generation in a dual-fuel engine setup, where diesel is used as an ignition source. A Computational Fluid Dynamics (CFD) model is developed and validated against experimental data using synthesis gas compositions containing H2, CO, CO2, and N2. A chemical kinetics model is integrated to enhance combustion accuracy, combining the diesel_14 and Gri-mech 3.0 sets to compute reactions involving diesel and synthesis gas/flue gases. Following validation, the study analyzes the dual-fuel engine's performance using H2-CO-rich waste gases: Blast Furnace Gas (BFG), Blast Oxygen Furnace Gas (BOFG), and Oxygen Blast Furnace Gas (OBFG) under various inlet temperatures. BOFG with diesel combustion results in higher peak pressure and heat release due to its significant combustible content (75.4%). BOFG's short combustion duration led to an IMEP of 8.8 bar, enhancing engine capacity than the OBFG and BFG. The exit amount of CO and UHC is higher in the case of BFG compared to other fuels. Higher combustion temperatures increase NOx emissions, notably for BOFG, due to elevated in-cylinder temperatures. In conclusion, this study demonstrates the potential of H2-CO-rich waste gases in dual-fuel engines for power generation, highlighting BOFG's performance advantages while addressing emissions concerns.

10.2139/ssrn.4591015

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Is acid treatment of secondary aluminum waste products prior to storage and disposal a viable option?

Environmental Nanotechnology Monitoring & Management (2020)

Fatin Samara Nour F. Attia Mustafa Khamis Mohamed I. Hassan Ali Isra Alam

Dross

10.1016/j.enmm.2020.100322

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Investigating Acoustic Excitation and Reburn Interaction on NOx Concentration in Bio-Fuel Engines Exhaust

Mohamed I. Hassan Ali Nellimala Abdul-Shukoor Rijo Thomas

10.1115/1.0004125v

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Forced convection heat transfer in heat sinks with topologies based on triply periodic minimal surfaces

Case Studies in Thermal Engineering (2022)

Mohamad Khalil Mohamed I. Hassan Ali Kamran A. Khan Rashid K. Abu Al‐Rub

This study numerically and experimentally investigates the forced convection heat transfer in three mathematically designed heat sinks with lattice topologies based on triply periodic minimal surfaces (TPMS). The TPMS lattices consist of periodically arranged Diamond (D) or Gyroid (G) unit cells of 10 mm size and 80% porosity, considering two TPMS topologies; solid and sheet networks. This investigation examines the thermohydraulic performance of these novel heat sinks and compares them with other heat sinks in the literature. The hydrodynamic characteristics are studied with an airflow channel, and the thermal performance is explored with a validated numerical model. The results show that form drag dominates pressure drop in the range 2000 < Re < 7000. Due to the lowest surface area and largest pore size, the G-Solid heat sink reported the lowest friction factor (f). Concerning the thermal performance, G-Sheet showed the highest areal convection heat transfer coefficient (hA) and the lowest thermal resistance (Rth) as a result of having the highest surface area. For a given pumping power, D-Solid exhibits the highest thermal efficiency (η). This work opens the door for designing novel 3D printable heat sinks and investigating their performance in thermal management systems.

Forced convection

10.1016/j.csite.2022.102313

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Citations (70)

Forced Convection Computational Fluid Dynamics Analysis of Architected and Three-Dimensional Printable Heat Sinks Based on Triply Periodic Minimal Surfaces

Journal of Thermal Science and Engineering Applications (2020)

Oraib Al‐Ketan Mohamed I. Hassan Ali Mohamad Khalil Reza Rowshan Kamran A. Khan

Abstract The drive for small and compact electronic components with higher processing capabilities is limited by their ability to dissipate the associated heat generated during operations, and hence, more advanced heat sink designs are required. Recently, the emergence of additive manufacturing techniques facilitated the fabrication of complex structures and overcame the limitation of traditional techniques such as milling, drilling, and casting. Therefore, complex heat sink designs are now easily realizable. In this study, we propose a design procedure for mathematically realizable architected heat sinks and investigate their performance using the computational fluid dynamics (CFD) approach. The proposed heat sinks are mathematically designed with topologies based on triply periodic minimal surfaces (TPMSs). Three-dimensional CFD models are developed using the starccm+ platform for uniform heat sinks and topologically graded heat sinks to study the heat transfer performance in forced convection domains. The overall heat transfer coefficient, surface temperature, and pressure drop versus the input heat sources as well as the Reynolds number are used to evaluate the heat sink performance. Moreover, temperature contours and velocity streamlines were examined to analyze the fluid flow behavior within the heat sinks. Results showed that the tortuosity and channel complexity of the Diamond solid-networks heat sink result in a 32% increase in convective heat transfer coefficient compared with the Gyroid solid-network heat sink which has the comparable surface area under the examined flow conditions. This increase is at the expense of increased pressure drops which increases by the same percentage. In addition, it was found that expanding channel size along flow direction using the porosity grading approach results in significant pressure drop (27.6%), while the corresponding drop in convective heat transfer is less significant (15.7%). These results show the importance of employing functional grading in the design of heat sinks. Also, the manufacturability of the proposed designs was assessed using computerized tomography (CT) scan and scanning electron microscopy (SEM) imaging performed on metallic samples fabricated using powder bed fusion techniques. A visible number of internal manufacturing defects can affect the performance of the proposed heat sinks.

Forced convection

10.1115/1.4047385

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Citations (129)

3D Printed Architected Heat Sinks Cooling Performance in Free and Forced Convection Environments

ASME 2003 Heat Transfer Summer Conference (2020)

Mohamed I. Hassan Ali Oraib Al‐Ketan Mohamad Khalil Nada Baobaid Kamran A. Khan

Abstract In this work, we extend our heat transfer performance study on our proposed new and novel 3D printable architected heat sinks with geometrically complex structures based on triply periodic minimal surfaces (TPMS). Computational fluid dynamics (CFD) modeling is used to assess the effect of porosity distribution, heat load, and isothermal boundary condition on the performance of the proposed TPMS-based heat sinks in active cooling using natural and forced convection heat transfer environments. The convection heat transfer coefficient, surface temperature, pressure drop are predicted using CFD method. The CFD model is validated using experimental results for the pressure drop and is verified by standard analytical results. Three TPMS structures are investigated in different orientations. Dimensionless heat transfer groups are developed to globalize the heat transfer performance of the proposed heat sinks.

Forced convection

Fin

10.1115/ht2020-9067

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Citations (5)

Numerical Simulation of Degassing Phenomena in Direct Chilled Casting Process under External Static Magnetic Field on Flow Pattern in Slab Mold

Light Metals (2016)

Mouhamadou A. Diop Mohamed I. Hassan Ali Xiaomeng Chen

Slab

10.1002/9781119274780.ch134

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Citations (0)