Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"IQT"”.
-
Characterisation of the autoignition delay behaviour of n-heptane in the IQT combustion bomb using CFD modelling
When n-heptane was tested in the IQT device over a range of temperatures and pressures, the measured autoignition delay did not correlate with the chemical autoignition delay associated with a stoichiometric, homogenous mixture as predicted by detailed chemical kinetic models. ... This project …
-
Intrinsic Quantum Thermodynamics: Application to Hydrogen Storage on a Carbon Nanotube and Theoretical Consideration of Non-Work Interactions
Intrinsic Quantum Thermodynamics (IQT) is a theory that combines Thermodynamics and Quantum Mechanics into a single theory and asserts that irreversibility and the increase of entropy has its origin at the fundamental, atomistic level. The merits and details of IQT are discussed and compared with …
-
Jp-8 Surrogates For Diesel Engine Application: Development, Validation, And Cfd Simulation
… using a MATLAB code, Ignition Quality Tester (IQT), and HYSYS simulation software. Then, all the surrogates were tested in the IQT at different charge air temperatures, and the results of the tests were compared with those for the target JP-8. The surrogate that best reproduced the …
-
Modification of an ignition quality tester and its use in characterizing middle distillate fuels
The Ignition Quality Tester ( IQTTM ) is a constant volume combustion chamber based device which is used to determine the derived cetane number of diesel fuel oils when used in conjunction with ASTM D6890. During a test, the fuel sample is injected into heated, pressurised gas where it combusts. …
-
Ignition Quality Tester: an alternative for characterizing the combustion kinetics of low volatility fuels, The
… to demonstrate that the Ignition Quality Tester (IQT) can be used to validate the kinetic mechanisms of both high and low volatility fuels. Such validated mechanisms are an essential component for engine models used to improve efficiency and determine the impact of alternative fuels. There are …
-
Modeling the Non-Equilibrium Behavior of Chemically Reactive Atomistic Level Systems Using Steepest-Entropy-Ascent Quantum Thermodynamics
… known as intrinsic quantum thermodynamics (IQT) and its mathematical framework steepest-entropy-ascent quantum thermodynamics (SEA-QT) to predict the reaction kinetics at atomistic levels of chemically reactive systems in the non-equilibrium realm. IQT has emerged over the last three decades …
-
The development of an enhanced autoignition sub-model for use in CFD combustion simulations
… for future work include the modelling of the IQT™ with the possibility of reconciling the ignition delay of the IQT™ and the cetane test.
-
Effect Of Cetane Number And Volatility On Autoignition And Combustion Of Alternative Fuels And Their Surrogates
… volume vessel of Ignition Quality Tester (IQT), optically accessible rapid compression machine (RCM), and Partnership for Next Generation of Vehicle (PNGV) single cylinder diesel engine. Experimental data and simulation results indicate that the fuel properties, such as cetane number and …
-
Modeling the Non-equilibrium Phenomenon of Diffusion in Closed and Open Systems at an Atomistic Level Using Steepest-Entropy-Ascent Quantum Thermodynamics
Intrinsic quantum Thermodynamics (IQT) is a theory that unifies thermodynamics and quantum mechanics into a single theory. Its mathematical framework, steepest-entropy-ascent quantum thermodynamics (SEAQT), can be used to model and describe the non-equilibrium phenomenon of diffusion based on the …
-
Application of Steepest-Entropy-Ascent Quantum Thermodynamics to Solid-State Phenomena
… framework for intrinsic quantum thermodynamics (IQT), a unified theory of quantum mechanics and thermodynamics. In the theoretical framework, entropy is viewed as a measure of energy load sharing among available energy eigenlevels, and a unique relaxation path of a system from an initial …
-
The influence of fuel properties on threshold combustion in aviation gas turbine engines
… correlation could be obtained by operating the IQT™ device that is used to measure these delays at an elevated temperature. The thesis makes a contribution towards the development of both technical understanding and practical tools for evaluating the potential operating limits of alternative jet …