Etheses uwaterloo ca display cfm ethesis id - …

One of the Very few institutions in the Caribbean to be Accredited by CAAM –HP, a compulsory requirement for recognition for practice in Caribbean / India / USA (As per NCFMEA & ECFMG regulations

A Generation IV Sodium cooled Fast Reactor (SFR) is being researched and developed at CEA, Cadarache France under the project named ASTRID. Monitoring gas presence in SFR is important with respect to its safe operation. In accordance with the principles of diversity, techniques based on different measurement principles have been proposed. This thesis concerns the detection and characterization of void using magnetic flux perturbation principle. An Eddy Current Flow Meter (ECFM) device is used for this purpose. From the technological point of view, the objective is to evaluate the feasibility of ECFM as a flow and/or void monitoring/characterizing device; and to determine which parameters are of interest and what are the precision of these measurements; and whether it is possible to measure the flow rate and void fraction simultaneously with the same ECFM device. From the physics point of view, the ECFM system involves the magnetic flux perturbation due to voids in the presence of Faraday induction and Lorentz force effects. Therefore ECFM integrated signal contains informations about the void, Faraday induction and Lorentz force effects based perturbation in magnetic flux and their couplings. Our objective is to understand the nature and extent of these couplings. Specific experiments have been developed to study the effects of flow velocity, void fraction and magnetic flux pulsations on the response of an ECFM. It consists in modeling the two-phase flow by a moving aluminium rod (plug flow) with holes and grooves to simulate voids. Flow velocity range of variation was 0

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A comparative study of two combustion models based on a non-premixed assumption or a partially premixed assumption using the previously proposed models Zimont Turbulent Flame Speed Closure (ZTFSC) and Extended Coherent Flamelet Method (ECFM)) is presented in a first step. Comprehensive chemical reactions containing 244 reactions and 50 species are taken into account using a tabulated detailed chemistry approach and an assumed shape PDF to account for turbulence effects. The purpose of this study is to validate and compare the effectiveness of these models in predicting complex combustion and to improve upon for the defects observed in previous predictions of the same combustor. It is concluded that the use of models invoking the partially premixed combustion assumption can provide much more accurate results than models using a non-premixed combustion assumption especially in the primary zone of the combustor where turbulence combustion interaction is strong. In addition, certain shortcomings of steady RANS type models are identified as a result of strong unsteady effects and their inability to resolve the turbulence spectrum.

It is accredited by The Caribbean Accreditation Authority for Education in Medicine and other Health Professions (CAAM-HP), one of only three existing private medical schools to have this accreditation. CAAM-HP is recognized by the General Medical Council of the UK and by the World Federation for Medical Education (WFME)/Foundation for Advancement of International Medical Education and Research (FAIMER). After 2023, the Educational Commission for Foreign Medical Graduates (ECFMG) will issue an ECFMG certification only for degrees obtained from a medical school with an accreditation recognized by the WFME. SGU’s Master of Public Health (MPH) program is accredited by the US Council on Education for Public Health (CEPH).

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The University of Constanta is fully accredited by the Romanian Government. The Medical school is recognized and listed with the WHO and ECFMG. Below is a list of some of the University International Recognition. Please check with your country Medical Councils for further details as regards studying in Romania.

One of the Very few institutions in the Caribbean to be Accredited by CAAM –HP, a compulsory requirement for recognition for practice in Caribbean / India / USA (As per NCFMEA & ECFMG regulations

National Instruments: LabVIEW Forum

The work presented in this thesis addresses issues involving the accurate and efficient numerical modelling of turbulence combustion with an emphasis on an industrially representative Tay model combustor. This combustor retained all essential features of a modern aero-engine rich burn combustor and thus the turbulence combustion within this combustor is much more complicated than those observed in the combustor-like burners typically considered in laboratory experiments.A comparative study of two combustion models based on a non-premixed assumption or a partially premixed assumption using the previously proposed models Zimont Turbulent Flame Speed Closure (ZTFSC) and Extended Coherent Flamelet Method (ECFM)) is presented in a first step. Comprehensive chemical reactions containing 244 reactions and 50 species are taken into account using a tabulated detailed chemistry approach and an assumed shape PDF to account for turbulence effects. The purpose of this study is to validate and compare the effectiveness of these models in predicting complex combustion and to improve upon for the defects observed in previous predictions of the same combustor. It is concluded that the use of models invoking the partially premixed combustion assumption can provide much more accurate results than models using a non-premixed combustion assumption especially in the primary zone of the combustor where turbulence combustion interaction is strong. In addition, certain shortcomings of steady RANS type models are identified as a result of strong unsteady effects and their inability to resolve the turbulence spectrum.Following this, two URANS models and the scale resolving simulation (SRS) approach such as a shear stress transport, K-omega, scale adaptive simulation (SSTKWSAS) combined with the partially premixed method identified in the first step are employed in a second step to further improve the accuracy achieved and to provide evidence and guidance in terms of the trade-off between accuracy and computational cost for complex turbulent combustion simulations. The second generation SRS model (SSTKWSAS) is applied to the complicated flow environment of a realistic combustor for the first time. The present work highlights the superiority of the combination of the SSTKWSAS approach and a partially premixed combustion model in terms of both accuracy and efficiency for predicting such combustion problems.

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One of the Very few institutions in the Caribbean to be Accredited by CAAM –HP, a compulsory requirement for recognition for practice in Caribbean / India / USA (As per NCFMEA & ECFMG regulations