Search
10 articles for “combustor”
-
Scramjet Combustor Development: A Review
Abstract: In the development of scramjet engine, the combustor presents the most formidable problems. Combustor is the critical section due to practical constraints of suitable material, mixing and flame holding in the short span of length. The complex phenomenon of supersonic combustion involves turbulent mixing, shock interaction and heat release in supersonic flow. The flow field within the combustor of a scramjet engine is very complex and poses challenge in design …
Published in Journal of Aerospace Engineering & Technology · Vol. 2, Issue 3, 2012 · pp. 28–41 Read article
-
Large Eddy Simulation: An Approach to Simulate Non-Premixed and Partially Premixed Natural Gas Combustor
Abstract: This paper highlights on the large eddy simulation approach for non-premixed and partially premixed combustor. In the case of large eddy simulation, mainly two scalars are taken into consideration that is mixture fraction and the other one is the progress variable mixture fraction, which tracks the mixing of fuel and the oxidizer, and a progress variable which tracks the global extent of reaction of the local mixture. In the case …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 1, 2015 · pp. 35–42 Read article
-
Estimation of Oxygen and Carbon Dioxide Compositions in Coal Combustor: CFD Approach
Abstract: The present work is based on the software ANSYS FLUENT Workbench 15.0. This approach aims to provide an improved estimation of O2 and CO2 compositions from combustion of pulverized coal when the coal was injected pneumatically. This paper presents state of art in the field of pulverized coal combustion using computational fluid dynamic (CFD) approach. The mathematical models used for the combustion of pulverized coal includes realizable K-ɛ model for …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 3, 2015 · pp. 51–55 Read article
-
Flow Mixing in Combustion System of Gas Turbine Engines: A Review
Abstract: This paper gives an overview of present knowledge, literature and research regarding the different flow mixing mechanisms and their characteristics in case of combustion system of gas turbine combustors. It covers existing literature related to vortex flow, its properties and applications, types of combustion systems, potential application of Helmholtz’s theorem, numerical and experimental investigation on fluid mixing behavior in flow with different combinations of vortexes in gas turbine combustion system. …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 49–54 Read article
-
Experimentation of Flame Stabilization Using Flat Plate Gutter Made of Porous Material for Afterburner Applications
Abstract: Present experimental study is focused on the flat plate gutter made of different porous materials is to stabilize the flames for afterburner applications. The porous materials used for the gutters as a flame holder are Silicon Carbide (SiC), Zirconium Oxide (ZrO2) and Aluminium Oxide (Al2O3). The porous material flat plate gutters with different orientation angles of 0°, 30°, 45°, 60° and 90° to the main stream flow. The flat plate …
Published in Journal of Aerospace Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 71–76 Read article
-
Numerical Simulation of Entrained-flow Coal Gasification: A Study on Particles History
Abstract: Normal 0 false false false MicrosoftInternetExplorer4 Studies of coal particle history during coal gasification inside the gasifier are very limited. A comprehensive 3D numerical simulation of entrained-flow coal gasification is conducted. The Eulerian-Lagrangian approach is applied to solve the Navier-Stokes equations and the particle dynamics. The finite rate/eddy dissipation model is used to calculate the rate of gasgas phase reactions, whereas only finite rates are used for solid-gas phase reactions. …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 6, Issue 3, 2016 · pp. 9–18 Read article
-
Experimental Investigation on Heat Transfer Characteristics of Thermal Barrier Coating on Aero Engine Components
Abstract: The gas turbine blades play a crucial role in harnessing energy from the high-temperature and highpressure gas generated by the combustor. To withstand this challenging environment, turbine blades often employ super-alloys and incorporate new manufacturing technologies such as Direct Solidification (DS) and Single Crystal (SC). Additionally, the development of advanced ceramic Thermal Barrier Coating (TBC) is imperative to achieve higher operating temperatures (>1200°C). Therefore, the primary focus of this study …
Published in Journal of Polymer & Composites · Vol. 11, Issue 13, 2023 · pp. 50–58 Read article
-
Electrodeposition and Magnetron Sputtering of Rhenium Coatings on Carbon-Carbon Composites for Enhanced Corrosion Resistance and Structural Integrity
Abstract: It is well known that tailored materials are gaining in-roads to aviation and other manufacturing industries where stringent requirements are to be met, due to high temperature erosion, which is a problem. In order to counter these issues, materials which can resist a very high temperature are to be sought. One of the several methods to combat this high temperature issue is to provide a metallic refractory material coating on …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 35–44 Read article
-
Energy and Exergy Analysis of Boiler and Turbine for Thermal Power Plant: A Review
Abstract: This paper presents thermodynamic analysis of boiler and turbine. Most of the power plants are designed by the energetic performance criteria based on first law of thermodynamics only. The real useful energy loss cannot be justified by the first law of thermodynamics, because it does not differentiate between the quality and quantity of energy. Energy analysis presents only quantities results while exergy analysis presents quantitative as well as qualitative results …
Published in Journal of Thermal Engineering and Applications · Vol. 3, Issue 2, 2016 · pp. 22–26 Read article
-
Projections of Natural Absorption in Three-Dimensional Behind Phase into Turboprop Circulation
Abstract: Designed to enhance fuel-air mixing at supersonic speeds is one of the most difficult issues in the design of scramjet engine combustors. Various experiments and investigations were considered to boost fuel-air mixture in supersonic air streams. In this analysis, phase effects on transverse gaseous hydrogen injection into supersonic crossflow are examined numerically. Three-dimensional Reynolds Combined Navier-Stokes equations and k- sst turbulence model and perfect gas equation were numerically solved. Current …
Published in Journal of Aerospace Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 33–40 Read article