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The Effect of Thermal Treatment of Hematite Ore for Chemical Looping Combustion of Methane
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For chemical looping processes to become an economically viable technology, an inexpensive carrier that can endure repeated reduction and oxidation cycles needs to be identified or developed. Unfortunately, the reduction ...
Computational Fluid Dynamics Modeling of the Fuel Reactor in NETL's 50 kWth Chemical Looping Facility
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The National Energy Technology Laboratory (NETL) has explored chemical looping in its 50 kWth facility using a number of oxygen carriers. In this work, the results for methane conversion in the fuel reactor with a hematite ...
Optimization of a Cyclone Using Multiphase Flow Computational Fluid Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The U.S. Department of Energy National Energy Technology Laboratory's (NETL) 50 kWth chemical looping reactor (CLR) has an underperforming cyclone, which was designed using empirical correlations. To improve the performance ...
Process Failure Detection via Recurrence Quantification Analysis in a Slot-Rectangular Spouted Bed
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A study was conducted to explore the applicability of recurrence and recurrence quantification analysis (RQA) to the detection of process failures in spouted bed reactor systems. Three different potential failure modes ...
Effects of Downstream Vortex Generators on Film Cooling a Flat Plate Fed by Crossflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Counter-rotating vortices, formed by the interaction of film-cooling jets and the hot gas flow, adversely affect the performance of conventional film-cooling designs. Downstream vortex generators have been shown to improve ...
Analysis of a Vortexing Circulating Fluidized Bed for Process Intensification Via High-G Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fluidized beds are used in many industries where gas–solid reactions are present for their favorable characteristics of good solids mixing, high heat, and mass transfer rates, and large throughputs. In an attempt to increase ...
Effects of Riser Diameter on Solids Holdup and Particle Velocity Profiles in Circulating Fluidized Bed Riser Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Tests were performed in a 0.1-m diameter small circulating fluidized bed (SCFB) and 0.3 m diameter cold flow circulating fluidized bed (CFCFB) riser systems located at the National Energy Technology Laboratory (NETL) to ...
Computational and Experimental Study of Film-Cooling Effectiveness With and Without Downstream Vortex Generators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Downstream vortex generators that involve a pair of rectangular plates arranged in an open V-shape placed just downstream of each film-cooling hole were shown to create flow and vortical structures that entrain lifted ...