Efstathios-Al. Tingas
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View article: Elucidating reaction dynamics in a model of human brain energy metabolism
Elucidating reaction dynamics in a model of human brain energy metabolism Open
Energy metabolism is essential to brain function and Bioinformatics, but its study is experimentally challenging. Similarly, biologically accurate computational models are too complex for simple investigations. Here, we analyse an experime…
View article: Computational analysis of an ammonia-fuelled hybrid solid oxide fuel cell–gas turbine propulsion system for commercial aviation
Computational analysis of an ammonia-fuelled hybrid solid oxide fuel cell–gas turbine propulsion system for commercial aviation Open
View article: Wasserstoff: Wo er verwendet werden kann, wie viel benötigt wird, was er kosten könnte
Wasserstoff: Wo er verwendet werden kann, wie viel benötigt wird, was er kosten könnte Open
View article: A computational study of the use of hydrogen peroxide as pilot fuel for a homogeneous mixture of ammonia/hydrogen in a compression ignition engine
A computational study of the use of hydrogen peroxide as pilot fuel for a homogeneous mixture of ammonia/hydrogen in a compression ignition engine Open
We report a computational investigation of a compression ignition (CI) engine (compression ratio: 17.6, displacement volume: 1.3 L) where the main fuel is a homogeneous mixture of ammonia (70-60% vol%) and hydrogen (30-40% vol%), with a gl…
View article: The mechanism of propagation of NH<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si5.svg" display="inline" id="d1e2034"><mml:msub><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>/air and NH<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si5.svg" display="inline" id="d1e2042"><mml:msub><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>/H<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si7.svg" display="inline" id="d1e2050"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>/air laminar premixed flame fronts
The mechanism of propagation of NH/air and NH/H/air laminar premixed flame fronts Open
The mechanism of flame front propagation in NH3/air and NH3/H2/air steady, laminar premixed flames is examined. Since the process is characterised by a state of chemical non-equilibrium, the analysis focuses on the explosive mode that is i…
View article: Engine performance and emissions from a fumigated hydrogen/ammonia compression ignition engine with a hydrogen peroxide pilot
Engine performance and emissions from a fumigated hydrogen/ammonia compression ignition engine with a hydrogen peroxide pilot Open
The study investigates, numerically, the potential use of introducing aqueous HO as an ignition promoter in a statistically homogeneous NH/H fuelled, medium speed (1250 rpm), 4-stroke, 1.3 litre cylinder displacement, mildly boosted CI eng…
View article: Asymptotic analysis of detonation development at SI engine conditions using computational singular perturbation
Asymptotic analysis of detonation development at SI engine conditions using computational singular perturbation Open
The occurrence and intensity of the detonation phenomenon at spark-ignition (SI) engine conditions is investigated, with the objective to successfully predict super-knock and to elucidate the effect of kinetics and transport at the ignitio…
View article: Editorial: A glimpse of EVC2023
Editorial: A glimpse of EVC2023 Open
The Editorial describes the main aim and results of the 8th International Electric Vehicle Conference (EVC2023) held in Edinburgh Napier University, Edinburgh, United Kingdom from 21 – 23 June 2023.
View article: Hydrogen: Where it Can Be Used, How Much is Needed, What it May Cost
Hydrogen: Where it Can Be Used, How Much is Needed, What it May Cost Open
Although the subject of this book is hydrogen in Thermal Engines, neither the fuel nor the engines are widely commercially available at the time of publication: nor is it likely that this situation will change before the end of this decade…
View article: Mechanism of Cold-spot Autoignition in a Hydrogen/Air Mixture
Mechanism of Cold-spot Autoignition in a Hydrogen/Air Mixture Open
When designing high-efficiency spark-ignition (SI) engines to operate at high compression ratios, one of the main issues that have to be addressed is detonation development from a pre-ignition front. In order to control this phenomenon, it…
View article: Modelling the Transmission of Coxiella burnetii within a UK Dairy Herd: Investigating the Interconnected Relationship between the Parturition Cycle and Environment Contamination
Modelling the Transmission of Coxiella burnetii within a UK Dairy Herd: Investigating the Interconnected Relationship between the Parturition Cycle and Environment Contamination Open
Q fever infection in dairy herds is introduced through the transmission of the bacterium Coxiella burnetii, resulting in multiple detrimental effects such as reduction of lactation, abortions and chronic infection. Particularly in the UK, …
View article: Computational investigation of ammonia-hydrogen peroxide blends in HCCI engine mode
Computational investigation of ammonia-hydrogen peroxide blends in HCCI engine mode Open
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…
View article: Numerical analysis of zero-carbon HCCI engine fuelled with steam diluted H<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1510" altimg="si115.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>/H<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1518" altimg="si115.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e1526" altimg="si115.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math> blends
Numerical analysis of zero-carbon HCCI engine fuelled with steam diluted H/HO blends Open
View article: Computational analysis of an HCCI engine fuelled with hydrogen/hydrogen peroxide blends
Computational analysis of an HCCI engine fuelled with hydrogen/hydrogen peroxide blends Open
View article: Numerical Analysis of Zero-Carbon Hcci Engine Fuelled with Steam Diluted H2/H2o2 Blends
Numerical Analysis of Zero-Carbon Hcci Engine Fuelled with Steam Diluted H2/H2o2 Blends Open
View article: Modelling the Transmission of Coxiella Burnetii within a UK Dairy Herd: Investigating the Interconnected Relationship between the Parturition Cycle and Environment Contamination
Modelling the Transmission of Coxiella Burnetii within a UK Dairy Herd: Investigating the Interconnected Relationship between the Parturition Cycle and Environment Contamination Open
View article: Statistics of local and global flame speed and structure for highly turbulent H<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si7.svg"><mml:msub><mml:mrow/><mml:mn>2</mml:mn></mml:msub></mml:math>/air premixed flames
Statistics of local and global flame speed and structure for highly turbulent H/air premixed flames Open
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…
View article: Potential for Carbon-Neutral Advanced Biofuels in UK Road Transport
Potential for Carbon-Neutral Advanced Biofuels in UK Road Transport Open
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…
View article: Computational analysis of the effect of hydrogen peroxide addition on premixed laminar hydrogen/air flames
Computational analysis of the effect of hydrogen peroxide addition on premixed laminar hydrogen/air flames Open
View article: The chemical dynamics of hydrogen/hydrogen peroxide blends diluted with steam at compression ignition relevant conditions
The chemical dynamics of hydrogen/hydrogen peroxide blends diluted with steam at compression ignition relevant conditions Open
View article: Dynamics Analysis of a Jet-Fuel Surrogate and Development of a Skeletal Mechanism for Computational Fluid Dynamic Applications
Dynamics Analysis of a Jet-Fuel Surrogate and Development of a Skeletal Mechanism for Computational Fluid Dynamic Applications Open
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…
View article: 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
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 Open
View article: 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
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 Open
View article: Computational singular perturbation analysis of brain lactate metabolism
Computational singular perturbation analysis of brain lactate metabolism Open
Lactate in the brain is considered an important fuel and signalling molecule for neuronal activity, especially during neuronal activation. Whether lactate is shuttled from astrocytes to neurons or from neurons to astrocytes leads to the co…
View article: Algorithmic Analysis of Chemical Dynamics of the Autoignition of NH3–H2O2/Air Mixtures
Algorithmic Analysis of Chemical Dynamics of the Autoignition of NH3–H2O2/Air Mixtures Open
The dynamics of a homogeneous adiabatic autoignition of an ammonia/air mixture at constant volume was studied, using the algorithmic tools of Computational Singular Perturbation. Since ammonia combustion is characterized by both unrealisti…
View article: Topological and chemical characteristics of turbulent flames at MILD conditions
Topological and chemical characteristics of turbulent flames at MILD conditions Open
View article: Investigation of the turbulent flame structure and topology at different Karlovitz numbers using the tangential stretching rate index
Investigation of the turbulent flame structure and topology at different Karlovitz numbers using the tangential stretching rate index Open
View article: Three-stage heat release in n-heptane auto-ignition
Three-stage heat release in n-heptane auto-ignition Open
View article: Computational singular perturbation analysis of super-knock in SI engines
Computational singular perturbation analysis of super-knock in SI engines Open
View article: CH4/air homogeneous autoignition: A comparison of two chemical kinetics mechanisms
CH4/air homogeneous autoignition: A comparison of two chemical kinetics mechanisms Open