Non-reacting Numerical Simulation of Axisymmetric Trapped Vortex Combustor (2023)
Conference Proceeding
DAKKA, S., Singh, K., Jefferson-Loveday, R., & Serhat, H. (2023). Non-reacting Numerical Simulation of Axisymmetric Trapped Vortex Combustor.

This paper will focus on suitability of trapped vortex combustor as a candidate for gas turbine combustor objective to minimize pressure drop across combustor and investigating aerodynamic performance. Non-reacting simulation of axisymmetric cavity t... Read More about Non-reacting Numerical Simulation of Axisymmetric Trapped Vortex Combustor.

Hydrophobically/oleophilically guarded powder metallurgical structures and liquid impregnation for ice mitigation (2022)
Journal Article
Yang, D., Bao, R., Choi, K. S., Clare, A. T., & Hou, X. (2022). Hydrophobically/oleophilically guarded powder metallurgical structures and liquid impregnation for ice mitigation. Chemical Engineering Journal, 446, Article 137115. https://doi.org/10.1016/j.cej.2022.137115

Icing hazards often pose operational and safety challenges. Various surface and coating approaches have been attempted for ice mitigation purposes, but the durability remains an outstanding issue. Inspired by traditional powder metallurgy and slipper... Read More about Hydrophobically/oleophilically guarded powder metallurgical structures and liquid impregnation for ice mitigation.

A multi-vector community energy system integrating a heating network, electricity grid and PV production to manage an electrified community (2022)
Journal Article
Han, M. E., Alston, M., & Gillott, M. (2022). A multi-vector community energy system integrating a heating network, electricity grid and PV production to manage an electrified community. Energy and Buildings, 266, Article 112105. https://doi.org/10.1016/j.enbuild.2022.112105

Electrification in energy supply–demand plays a critical role in domestic heating and road transport, delivering an electrified community to reduce carbon emissions. This solution, however, places a significant power demand increase on the distributi... Read More about A multi-vector community energy system integrating a heating network, electricity grid and PV production to manage an electrified community.

Functionalised SiO2 modified icephobic nanocomposite electrospun membranes for outdoor electromagnetic shielding applications (2022)
Journal Article
Tas, M., Musa, U. G., Ahmed, I., Xu, F., Smartt, C., & Hou, X. (2022). Functionalised SiO2 modified icephobic nanocomposite electrospun membranes for outdoor electromagnetic shielding applications. Polymer, 240, Article 124499. https://doi.org/10.1016/j.polymer.2021.124499

Outdoor electronic equipment such as signal stations, radar units, and cellular base stations would benefit from electromagnetic interference (EMI) shielding systems, but ice accretion on the surface of these facilities often causes critical challeng... Read More about Functionalised SiO2 modified icephobic nanocomposite electrospun membranes for outdoor electromagnetic shielding applications.

Plasma electrolytic oxidation thermal barrier coating for reduced heat losses in IC engines (2021)
Journal Article
Hegab, A., Dahuwa, K., Islam, R., Cairns, A., Khurana, A., Shrestha, S., & Francis, R. (2021). Plasma electrolytic oxidation thermal barrier coating for reduced heat losses in IC engines. Applied Thermal Engineering, 196, Article 117316. https://doi.org/10.1016/j.applthermaleng.2021.117316

The work involved the development and on-engine testing of a new “thermo-swing” barrier coating for reduced wall heat transfer and increased thermal efficiency in future diesel engines utilizing aluminium alloy pistons. Such swing coatings, of low th... Read More about Plasma electrolytic oxidation thermal barrier coating for reduced heat losses in IC engines.

Numerical Analysis of Aerospike Engine Nozzle Performance at Various Truncation Lengths (2021)
Journal Article
Dakka, S., & Dennison, O. (2021). Numerical Analysis of Aerospike Engine Nozzle Performance at Various Truncation Lengths. International Journal of Aviation, Aeronautics, and Aerospace, 8(2), Article 12. https://doi.org/10.15394/ijaaa.2021.1601

The aerospike engine was first devised in the early 1960s where it provided new means of reaching orbit in a single stage. The paper aimes to demonstrate the viability of the technology by showcasing the increased nozzle thrust efficiency over the co... Read More about Numerical Analysis of Aerospike Engine Nozzle Performance at Various Truncation Lengths.

Voltage Oriented Controller based Vienna Rectifier for Electric Vehicle Charging Stations (2021)
Journal Article
Rajendran, G., Vaithilingam, C. A., Misron, N., Naidu, K., & Ahmed, M. R. (2021). Voltage Oriented Controller based Vienna Rectifier for Electric Vehicle Charging Stations. IEEE Access, 9, 50798-50809. https://doi.org/10.1109/ACCESS.2021.3068653

Vienna rectifiers have gained popularity in recent years for AC to DC power conversion for many industrial applications such as welding power supplies, data centers, telecommunication power sources, aircraft systems, and electric vehicle charging sta... Read More about Voltage Oriented Controller based Vienna Rectifier for Electric Vehicle Charging Stations.

General synthesis of single atom electrocatalysts: via a facile condensation-carbonization process (2020)
Journal Article
Chen, W., Luo, X., Slater, T. . J., Ling, S., Zhou, Y., Bao, R., …Shen, Y. (2020). General synthesis of single atom electrocatalysts: via a facile condensation-carbonization process. Journal of Materials Chemistry A, 8(48), 25959-25969. https://doi.org/10.1039/d0ta08115a

The general and cost-effective synthesis of single atom electrocatalysts (SAECs) still remains a great challenge. Herein, we report a general synthetic protocol for the synthesis of SAECs via a simple condensation-carbonization process, in which furf... Read More about General synthesis of single atom electrocatalysts: via a facile condensation-carbonization process.

Performance Characteristics Design of Pulsed Plasma Thrusters for Drag Counter-Reacting (2020)
Journal Article
Dakka, S. (2020). Performance Characteristics Design of Pulsed Plasma Thrusters for Drag Counter-Reacting. International Journal of Aviation, Aeronautics, and Aerospace, 7(4), Article 1. https://doi.org/10.15394/ijaaa.2020.1530

Determining the performance characteristics of off the shelf pulsed plasma thrusters to enhance the life time of low earth orbiting platforms was investigated theoretically. Pulsed plasma thruster analysis was accomplished through development of corr... Read More about Performance Characteristics Design of Pulsed Plasma Thrusters for Drag Counter-Reacting.

Hemoglobin-derived Fe-Nx-S species supported by bamboo-shaped carbon nanotubes as efficient electrocatalysts for the oxygen evolution reaction (2020)
Journal Article
Chen, W., Luo, X., Ling, S., Zhou, Y., Shen, B., Slater, T. J., …Shen, Y. (2020). Hemoglobin-derived Fe-Nx-S species supported by bamboo-shaped carbon nanotubes as efficient electrocatalysts for the oxygen evolution reaction. Carbon, 168, 588-596. https://doi.org/10.1016/j.carbon.2020.06.064

Herein, we report a facile route to synthesize isolated single iron atoms on nitrogen-sulfur-codoped carbon matrix via a direct pyrolysis process in which hemoglobin, a by-product of the meat industry, was utilized as a precursor for iron, nitrogen a... Read More about Hemoglobin-derived Fe-Nx-S species supported by bamboo-shaped carbon nanotubes as efficient electrocatalysts for the oxygen evolution reaction.

Investigation the Stability of Water in Oil Biofuel Emulsions Using Sunflower Oil (2020)
Journal Article
Sahota, R., & Dakka, S. M. (2020). Investigation the Stability of Water in Oil Biofuel Emulsions Using Sunflower Oil. ChemEngineering, 4(2), https://doi.org/10.3390/chemengineering4020036

Targets to reduce CO2 emissions by 75% and NOx emissions by 90% by 2050 in aviation have been set by The Advisory Council for Aviation Research and Innovation in Europe. Sustainable fuels, e.g., emulsified biofuel, have demonstrated promise in reduci... Read More about Investigation the Stability of Water in Oil Biofuel Emulsions Using Sunflower Oil.

The Interaction of Hydrogen with the van der Waals Crystal ?-InSe (2020)
Journal Article
Felton, J., Blundo, E., Ling, S., Glover, J., Kudrynskyi, Z. R., Makarovsky, O., …Patané, A. (2020). The Interaction of Hydrogen with the van der Waals Crystal γ-InSe. Molecules, 25(11), Article 2526. https://doi.org/10.3390/molecules25112526

The emergence of the hydrogen economy requires development in the storage, generation and sensing of hydrogen. The indium selenide (?-InSe) van der Waals (vdW) crystal shows promise for technologies in all three of these areas. For these applications... Read More about The Interaction of Hydrogen with the van der Waals Crystal ?-InSe.

Extracting an Empirical Intermetallic Hydride Design Principle from Limited Data via Interpretable Machine Learning (2019)
Journal Article
Witman, M., Ling, S., Grant, D. M., Walker, G. S., Agarwal, S., Stavila, V., & Allendorf, M. D. (2020). Extracting an Empirical Intermetallic Hydride Design Principle from Limited Data via Interpretable Machine Learning. Journal of Physical Chemistry Letters, 11(1), 40-47. https://doi.org/10.1021/acs.jpclett.9b02971

An open question in the metal hydride community is whether there are simple, physics-based design rules that dictate the thermodynamic properties of these materials across the variety of structures and chemistry they can exhibit. While black box mach... Read More about Extracting an Empirical Intermetallic Hydride Design Principle from Limited Data via Interpretable Machine Learning.

Ionic and Electronic Conduction in TiNb2O7 (2019)
Journal Article
Grey, C. P., Griffith, K. J., Seymour, I. D., Hope, M. A., Butala, M. M., Lamontagne, L. K., …Dutton, S. E. (2019). Ionic and Electronic Conduction in TiNb2O7. Journal of the American Chemical Society, 141(42), 16706–16725. https://doi.org/10.1021/jacs.9b06669

TiNb2O7 is a Wadsley–Roth phase with a crystallographic shear structure and is a promising candidate for high-rate lithium ion energy storage. The fundamental aspects of the lithium insertion mechanism and conduction in TiNb2O7, however, are not well... Read More about Ionic and Electronic Conduction in TiNb2O7.

Energy saving strategy for the development of icephobic coatings and surfaces (2019)
Journal Article
Zheng, Y., Wang, J., Liu, J., Choi, K., & Hou, X. (2019). Energy saving strategy for the development of icephobic coatings and surfaces. Thin Solid Films, 687, Article 137458. https://doi.org/10.1016/j.tsf.2019.137458

Aircraft are frequently exposed to cold environments and ice accumulation on aircraft surface may lead to catastrophic accidents. An effective solution of ice protection is a critical requirement in the aerospace industry. For the research and develo... Read More about Energy saving strategy for the development of icephobic coatings and surfaces.

Layered Al2O3-SiO2 and Al2O3-Ta2O5 thin-film composites for high dielectric strength, deposited by pulsed direct current and radio frequency magnetron sputtering (2019)
Journal Article
Hanby, B. V., Stuart, B. W., Gimeno-Fabra, M., Moffat, J., Gerada, C., & Grant, D. M. (2019). Layered Al2O3-SiO2 and Al2O3-Ta2O5 thin-film composites for high dielectric strength, deposited by pulsed direct current and radio frequency magnetron sputtering. Applied Surface Science, 492, 328-336. https://doi.org/10.1016/j.apsusc.2019.06.202

Multilayer thin films have the potential to act as high dielectric strength insulation for wire and microelectronics. In this study, films consisting of 2, 4 or 8 layers, composed of Al2O3 with SiO2 or Ta2O5, were prepared via pulsed direct current a... Read More about Layered Al2O3-SiO2 and Al2O3-Ta2O5 thin-film composites for high dielectric strength, deposited by pulsed direct current and radio frequency magnetron sputtering.

In-situ icing and water condensation study on different topographical surfaces (2019)
Journal Article
Memon, H., Liu, J., Weston, N., Wang, J., De Focatiis, D., Choi, K., & Hou, X. (2019). In-situ icing and water condensation study on different topographical surfaces. Cold Regions Science and Technology, 165, Article 102814. https://doi.org/10.1016/j.coldregions.2019.102814

Icephobicity is intrinsically affected by rough asperities and the surface voids provide anchoring points for the ice. The anchor of ice is likely to form on the surface under high humidity conditions. In-situ water condensation and icing observation... Read More about In-situ icing and water condensation study on different topographical surfaces.

Ultra-high resolution imaging of thin films and single strands of polythiophene using atomic force microscopy (2019)
Journal Article
Korolkov, V. V., Summerfield, A., Murphy, A., Amabilino, D. B., Watanabe, K., Taniguchi, T., & Beton, P. H. (2019). Ultra-high resolution imaging of thin films and single strands of polythiophene using atomic force microscopy. Nature Communications, 10, Article 1537. https://doi.org/10.1038/s41467-019-09571-6

Real-space images of polymers with sub-molecular resolution could provide valuable insights into the relationship between morphology and functionality of polymer optoelectronic devices, but their acquisition is problematic due to perceived limitation... Read More about Ultra-high resolution imaging of thin films and single strands of polythiophene using atomic force microscopy.

Anion-binding-induced electrochemical signal transduction in ferrocenylimidazolium: combined electrochemical experimental and theoretical investigation (2019)
Journal Article
Weng, T., Huang, Y., Xue, L., Cheng, J., Jin, S., Liu, S., …Chen, G. Z. (2019). Anion-binding-induced electrochemical signal transduction in ferrocenylimidazolium: combined electrochemical experimental and theoretical investigation. Molecules, 24(2), Article 238. https://doi.org/10.3390/molecules24020238

Five ferrocene alkymethylimidazolium cations 1a–1d and 2 with different alkyl spacer lengths were reinvestigated using voltammetry and density functional theory (DFT) calculations. The voltammetric responses of ligand 2 toward various anions are desc... Read More about Anion-binding-induced electrochemical signal transduction in ferrocenylimidazolium: combined electrochemical experimental and theoretical investigation.

Cross-linked Ni(OH)<inf>2</inf>/CuCo<inf>2</inf>S<inf>4</inf>/Ni networks as binder-free electrodes for high performance supercapatteries (2018)
Journal Article
Tang, N., You, H., Li, M., Chen, G. Z., & Zhang, L. (2018). Cross-linked Ni(OH)2/CuCo2S4/Ni networks as binder-free electrodes for high performance supercapatteries. Nanoscale, 10(44), 20526-20532. https://doi.org/10.1039/c8nr05662e

The heterogeneous Ni(OH)2/CuCo2S4/Ni electrode is constructed by appropriately adjusting the time-dependent hydrothermal and electrodeposition process. A hybrid device exhibits 39.7 W h kg-1 of specific energy and 365.3 W kg-1 of specific power, with... Read More about Cross-linked Ni(OH)<inf>2</inf>/CuCo<inf>2</inf>S<inf>4</inf>/Ni networks as binder-free electrodes for high performance supercapatteries.