Outputs (81)

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. (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. (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.

Q fever and early pregnancy failure: a Scottish case control study (2021)
Journal Article
Wheelhouse, N., Kemp, S., Halliday, J. E. B., Tingas, E. A., Duncan, W. C., & Horne, A. W. (2022). Q fever and early pregnancy failure: a Scottish case control study. Reproduction and Fertility, 3(1), https://doi.org/10.1530/raf-21-0072

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., & 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. (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. (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.

The chemical dynamics of hydrogen/hydrogen peroxide blends diluted with steam at compression ignition relevant conditions (2021)
Journal Article
Tingas, E. (2021). The chemical dynamics of hydrogen/hydrogen peroxide blends diluted with steam at compression ignition relevant conditions. Fuel, 296, Article 120594. https://doi.org/10.1016/j.fuel.2021.120594

In the current work, the use of hydrogen peroxide as an additive to hydrogen/air mixtures is proposed and explored computationally, in conditions relevant to compression ignition engines. The hydrogen/hydrogen peroxide blends are supplemented with st... Read More about The chemical dynamics of hydrogen/hydrogen peroxide blends diluted with steam at compression ignition relevant conditions.

Dynamics Analysis of a Jet-Fuel Surrogate and Development of a Skeletal Mechanism for Computational Fluid Dynamic Applications (2020)
Journal Article
Sharmin, N., & Tingas, E. (2020). Dynamics Analysis of a Jet-Fuel Surrogate and Development of a Skeletal Mechanism for Computational Fluid Dynamic Applications. Journal of Energy Engineering, 146(6), Article 04020064. https://doi.org/10.1061/%28asce%29ey.1943-7897.0000714

The autoignition dynamics of a three-component surrogate jet fuel (66.2% n-dodecane, 15.8% n-proplylbenzene, 18.0% 1,3,5-trimethylcyclohexane) suitable for usage as Jet A-1 and RP-3 aviation fuels are analyzed, using the detailed mechanism of Liu et... Read More about Dynamics Analysis of a Jet-Fuel Surrogate and Development of a Skeletal Mechanism for Computational Fluid Dynamic Applications.

Computational Singular Perturbation Method and Tangential Stretching Rate Analysis of Large Scale Simulations of Reactive Flows: Feature Tracking, Time Scale Characterization, and Cause/Effect Identification. Part 2, Analyses of Ignition Systems, Laminar and Turbulent Flames (2020)
Book Chapter
Valorani, M., Creta, F., Ciottoli, P. P., Malpica Galassi, R., Goussis, D. A., Najm, H. N., Paolucci, S., Im, H. G., Tingas, E., Manias, D. M., Parente, A., Li, Z., & Grenga, T. (2020). Computational Singular Perturbation Method and Tangential Stretching Rate Analysis of Large Scale Simulations of Reactive Flows: Feature Tracking, Time Scale Characterization, and Cause/Effect Identification. Part 2, Analyses of Ignition Systems, Laminar and Turbulent Flames. In H. Pitsch, & A. Attili (Eds.), Data Analysis for Direct Numerical Simulations of Turbulent Combustion: From Equation-Based Analysis to Machine Learning (65-88). Springer. https://doi.org/10.1007/978-3-030-44718-2_4

Chapter 3 summarized the highlights of the concepts behind the CSP method and the TSR analysis. In this chapter, we will discuss a few applications of these techniques.

Computational Singular Perturbation Method and Tangential Stretching Rate Analysis of Large Scale Simulations of Reactive Flows: Feature Tracking, Time Scale Characterization, and Cause/Effect Identification. Part 1, Basic Concepts (2020)
Book Chapter
Valorani, M., Creta, F., Ciottoli, P. P., Malpica Galassi, R., Goussis, D. A., Najm, H. N., Paolucci, S., Im, H. G., Tingas, E., Manias, D. M., Parente, A., Li, Z., & Grenga, T. (2020). Computational Singular Perturbation Method and Tangential Stretching Rate Analysis of Large Scale Simulations of Reactive Flows: Feature Tracking, Time Scale Characterization, and Cause/Effect Identification. Part 1, Basic Concepts. In H. Pitsch, & A. Attili (Eds.), Data Analysis for Direct Numerical Simulations of Turbulent Combustion (43-64). Springer. https://doi.org/10.1007/978-3-030-44718-2_3

This chapter provides a review of the basic ideas at the core of the Computational Singular Perturbation (CSP) method and the Tangential Stretching Rate (TSR) analysis. It includes a coherent summary of the theoretical foundations of these two method... Read More about Computational Singular Perturbation Method and Tangential Stretching Rate Analysis of Large Scale Simulations of Reactive Flows: Feature Tracking, Time Scale Characterization, and Cause/Effect Identification. Part 1, Basic Concepts.