Abdullah Masoud Ali

University of Leicester

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Audrius Bagdanavičius

University of Leicester

Aldo Rona

University of Leicester

Matteo Angelino

University of Leicester

Mohammad Ismail

Amman Arab University

Edward Barbour

Loughborough University

Seamus D. Garvey

University of Nottingham

Daniel L. Pottie

Loughborough University

James Rouse

University of Nottingham

Zahra Baniamerian

University of Nottingham

Awni H. Alkhazaleh

Al-Balqa Applied University

Cooperative Institutions

University of Leicester

Loughborough University

Renewable Energy Systems (United Kingdom)

University of Nottingham

University of Birmingham

Energy Institute

University of Illinois Chicago

Amman Arab University

Universidade Federal de Minas Gerais

Cardiff University

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Improving the performance of a shell and tube latent heat thermal energy storage through modifications of heat transfer pipes: A comprehensive investigation on various configurations

Journal of Energy Storage (2024)

Abdullah Masoud Ali Audrius Bagdanavičius Edward Barbour Daniel L. Pottie Seamus D. Garvey

10.1016/j.est.2024.112678

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Citations (5)

Numerical investigation of various twisted tapes enhancing a circular microchannel heat sink performance

International Journal of Heat and Fluid Flow (2022)

Abdullah Masoud Ali Aldo Rona Matteo Angelino

The continuous power increase and miniaturization of modern electronics require increasingly effective thermal management systems. The thermo-hydraulic performance of water-cooled L×L square-base silicon microchannel heat sinks is investigated by a conjugate heat transfer and computational fluid dynamics model over the Reynolds number range 100 to 500. Water at a constant inlet temperature of 298 K runs through 33 parallel tubes, extracting heat from the bottom wall that has a 100 W/cm2 constant heat flux input. Hydro-thermal performance-enhancing tape inserts are numerically tested featuring (i) radial gaps between the tape and the tube, (ii) tape twist with axial pitch distances of ∞, L/2, or L/4, (iii) zero, one, or two 90-degree angular steps between consecutive tape segments, (iv) alternating clockwise and anti-clockwise consecutive twisted tape segments, and combinations of these features. The radial gaps produce both a hydraulic and a thermal performance loss. All combinations of tape twist, angular steps, and twist direction reversal produced better thermal performance gains to hydraulic loss trade-offs than the baseline microchannel configuration with no tape. The microchannel heat sinks with four L/4 alternating pitch consecutive helical tape segments provided the lowest bottom wall average temperature, 16.13 K below that with not tape, at the same Reynolds number of 500. This predicted temperature drop is a significant achievement towards conditioning electronic components so they may be longer-lasting, use less energy, and have a reduced environmental impact.

Microchannel

Heat transfer enhancement

Hydraulic diameter

Working fluid

10.1016/j.ijheatfluidflow.2022.109065

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Citations (12)

Numerical Analysis of the Thermal Performance of Packed Bed Thermal Energy Storage in Adiabatic Compressed Air Energy Storage Systems

Abdullah Masoud Ali Audrius Bagdanavičius Edward Barbour Daniel L. Pottie Seamus D. Garvey

Compressed air

10.2139/ssrn.5108684

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GUIDANCE ON USING TWO-PHASE MODELS FOR PREDICTION THE PERFORMANCE OF A NANOFLUID MINICHANNEL HEAT SINK

34th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 2021) (2024)

Abdullah Masoud Ali Aldo Rona Audrius Bagdanavičius

Sink (geography)

10.52202/077185-0186

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Thermo-hydraulic performance of a circular microchannel heat sink using swirl flow and nanofluid

Applied Thermal Engineering (2021)

Abdullah Masoud Ali Aldo Rona Hakim T. Kadhim Matteo Angelino Shian Gao

Microchannel

Electronics cooling

Hydraulic diameter

10.1016/j.applthermaleng.2021.116817

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Citations (57)

Vortex Generators in Heat Sinks: Design, Optimisation, Applications and Future Trends

Results in Engineering (2025)

Mohammad Ismail Abdullah Masoud Ali Suzana Matheus Pereira

Vortex generator

10.1016/j.rineng.2025.104216

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Guidance on using two-phase models for predicting the performance of a nanofluid minichannel heat sink

Powder Technology (2024)

Abdullah Masoud Ali Aldo Rona Audrius Bagdanavičius

10.1016/j.powtec.2024.120531

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Citations (1)

Experimental and numerical analysis of paraffin waxes during solidification inside spherical capsules

Thermal Science and Engineering Progress (2021)

Mohammad Ismail Awni H. Alkhazaleh Jafar Masri Abdullah Masoud Ali Malek Ali

Paraffin wax

Dimensionless quantity

Phase-change material

10.1016/j.tsep.2021.101095

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Citations (21)

A comprehensive study of encapsulated phase change materials in latent heat thermal energy storage systems: Experimental and numerical insights

International Communications in Heat and Mass Transfer (2024)

Mohammad Ismail Awni H. Alkhazaleh Abdullah Masoud Ali

Phase-change material

10.1016/j.icheatmasstransfer.2024.108449

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Acaes System Performance with Application-Oriented Designed Axial-Flowcompressor

Daniel L. Pottie Maury Oliveira Bruno Cárdenas Zahra Baniamerian Seamus D. Garvey

Medium and long-duration energy storage systems are expected to play a critical role in the transition towards electrical grids powered by renewable energy sources. ACAES is a promising solution, capable of handling power and energy ratings over hundreds of MW and MWh, respectively. One challenge with ACAES is achieving the required highly efficient operation in the compressor over the range of conditions encountered in the system as the pressure in the air store changes. In this paper, we design an application-oriented axial-flow compressor, aiming towards efficient operation throughout the operation range, whilst also associating the performance prediction to a practical compressor geometry. We implement a two-step design methodology based on inviscid, axisymmetric flow conditions which leads us to the flowtrack, blade-row geometries and the compressor performance map. The compressor model is integrated into an ACAES model, including two compression stages, two expansion stages with preheat, and two separate Thermal Energy Storage units. While the existing literature mostly ignores the transient off-design operation, or tends to use generic numerical correlations which are not associated to a particular geometry or arrangement, the key novelty of this paper is in the application of detailed design method for turbomachinery to ACAES. The results indicate that the designed compressor is able to operate efficiently over the pressure range, showing that if the application-oriented design procedure is applied to the compressor, it does not stop ACAES reaching 70\% round-trip efficiency. Additionally, the specific ACAES requirement of conserving heat at higher temperatures has been fulfilled by decreasing the number of intercoolers. Finally, it is recommended that a similar scrutiny is applied to the other components (i.e. expanders, heat exchangers and TES units), keeping in mind the unique set of operational requirements of ACAES. This work is an important step towards removing the common misconception that "off-the-shelf" components can be easily be used in typical ACAES designs.

10.2139/ssrn.4613971

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