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Computational investigation of ammonia-hydrogen peroxide blends in HCCI engine mode (2022)
Journal Article
Shafiq, O., & Tingas, E.-A. (2023). Computational investigation of ammonia-hydrogen peroxide blends in HCCI engine mode. International Journal of Engine Research, 24(5), 2279-2294. https://doi.org/10.1177/14680874221117686

The potential use of hydrogen peroxide as an ignition promoter to enable the use of ammonia in compression ignition engines is explored in the current study. A simplified numerical HCCI engine model within the Chemkin Pro suite is employed. The numer... Read More about Computational investigation of ammonia-hydrogen peroxide blends in HCCI engine mode.

Numerical analysis of zero-carbon HCCI engine fuelled with steam diluted H2/H2O2 blends (2022)
Journal Article
Fernie, O., Megaritis, T., Ganippa, L. C., & Tingas, E.-A. (2022). Numerical analysis of zero-carbon HCCI engine fuelled with steam diluted H2/H2O2 blends. Fuel, 326, Article 125100. https://doi.org/10.1016/j.fuel.2022.125100

The addition of hydrogen peroxide and steam to a hydrogen-fuelled HCCI engine was investigated at various fuel lean conditions ( = 0.2–0.6) and compression ratios (15–20) using a 0-dimensional numerical model. The use of hydrogen peroxide as an ignit... Read More about Numerical analysis of zero-carbon HCCI engine fuelled with steam diluted H2/H2O2 blends.

Computational analysis of an HCCI engine fuelled with hydrogen/hydrogen peroxide blends (2022)
Journal Article
Dimitrova, I. D., Megaritis, T., Ganippa, L. C., & Tingas, E.-A. (2022). Computational analysis of an HCCI engine fuelled with hydrogen/hydrogen peroxide blends. International Journal of Hydrogen Energy, 47(17), 10083-10096. https://doi.org/10.1016/j.ijhydene.2022.01.093

In the current work, Chemkin Pro's HCCI numerical model is used in order to explore the feasibility of using hydrogen in a dual fuel concept where hydrogen peroxide acts as ignition promoter. The analysis focuses on the engine performance characteris... Read More about Computational analysis of an HCCI engine fuelled with hydrogen/hydrogen peroxide blends.

Computational investigation of the chemical dynamics in detonation development at SI engine conditions (2021)
Presentation / Conference Contribution
Dimitrova, I. D., Sanal, S., Bau Luong, M., Tingas, S., & Im, H. G. (2021, November). Computational investigation of the chemical dynamics in detonation development at SI engine conditions. Paper presented at 74th Annual Meeting of the APS Division of Fluid Dynamics, Phoenix, Arizona

This study employs algorithmic tools from the computational singular perturbation (CSP) approach and statistics to investigate detonation development in SI engines using 2D simulations at different intensity levels – strong and mild detonations. The... Read More about Computational investigation of the chemical dynamics in detonation development at SI engine conditions.

Identification of Key Processes and Periods in a Model of Human Brain Energy Metabolism by Algorithmic Decomposition with Computational Singular Perturbation (2021)
Presentation / Conference Contribution
Patsatzis, D., Tingas, S., Sarathy, M., Goussis, D., & Jolivet, R. (2021, July). Identification of Key Processes and Periods in a Model of Human Brain Energy Metabolism by Algorithmic Decomposition with Computational Singular Perturbation. Paper presented at XV European Meeting on Glial Cells in Health and Disease, Online

Energetic considerations play a crucial role in brain function and disease. The study of brainenergy metabolism is, however, rendered difficult by a relative lack of experimental tools thatcan probe the contributions of different intri... Read More about Identification of Key Processes and Periods in a Model of Human Brain Energy Metabolism by Algorithmic Decomposition with Computational Singular Perturbation.

Statistics of local and global flame speed and structure for highly turbulent H2/air premixed flames (2021)
Journal Article
Song, W., Hernández Pérez, F. E., Tingas, E.-A., & Im, H. G. (2021). Statistics of local and global flame speed and structure for highly turbulent H2/air premixed flames. Combustion and Flame, 232, Article 111523. https://doi.org/10.1016/j.combustflame.2021.111523

A statistical analysis is conducted for turbulent hydrogen-air premixed flames at a range of Karlovitz numbers up to 1,126 by direct numerical simulations (DNS) with detailed chemistry. The local and global burning velocities are evaluated and the de... Read More about Statistics of local and global flame speed and structure for highly turbulent H2/air premixed flames.

Potential for Carbon-Neutral Advanced Biofuels in UK Road Transport (2021)
Journal Article
King, R., & Tingas, E.-A. (2021). Potential for Carbon-Neutral Advanced Biofuels in UK Road Transport. Journal of Energy Engineering, 147(4), 04021025. https://doi.org/10.1061/%28asce%29ey.1943-7897.0000775

As a result of anthropocentric climate change, there is an urgent need to decarbonize the supply of energy. Organic biomass, referred to as feedstock, can be converted into biofuels that have the potential to decarbonize transport. However, biofuels... Read More about Potential for Carbon-Neutral Advanced Biofuels in UK Road Transport.

Computational analysis of the effect of hydrogen peroxide addition on premixed laminar hydrogen/air flames (2021)
Journal Article
Tingas, E.-A. (2021). Computational analysis of the effect of hydrogen peroxide addition on premixed laminar hydrogen/air flames. Fuel, 302, Article 121081. https://doi.org/10.1016/j.fuel.2021.121081

In the current work, the effect of H2O2 addition on the flame structure, laminar flame speed and NOx emissions is investigated in the context of 1D laminar premixed H2/air flames at Tu = 300 and 600 K, p = 1 and 30 atm, = 0.5. Mathematical tools fro... Read More about Computational analysis of the effect of hydrogen peroxide addition on premixed laminar hydrogen/air flames.