There are two overall goals for this project. We propose a process of discovery for the purpose of identifying and defining a research and development agenda for combustion visualization. The discovery process will involve close collaboration with the Combustion program at NERSC/ LBNL, and will dovetail with the effort proposed in a related FY99 LDRD (Bell, Brown and Colella). With such an agen...

Cubic delta-tantalum nitride (δ-TaN) nanoparticles were selectively prepared using a K2TaF7 + (5 + k) NaN3 + kNH4F reactive mixture (k being the number of moles of NH4F) via a combustion process under a nitrogen pressure of 2.0 MPa. The combustion temperature, when plotted as a function of the number of moles of NH4F used, was in the range of 850°C to 1,170°C. X-ray diffraction patterns reveale...

It is essential to increase the efficiency of the commercially available combustion engines because of the limitations in fossil energy resources and environmental pollution Also the emission standards are a challenging aspect. If one succeeds in designing the combustion process, in particular the chemical reactions, it would be feasible to partly replace complex experiments by computer simulat...

Thermogravimetric analysis of recycling dust (RD) from the melter gasifier of COREX, coke1 (C-1), coke2 (C-2) and coal char (CC) under 70% oxygen atmosphere was carried out using thermal balance. The chemical composition and physical structure of the samples were investigated. The characteristic temperatures and comprehensive combustion characteristic indexes were calculated and kinetic paramet...

The design of an industrial incinerator must center around the energy converter of the system or the combustion process. Combustion is the principal function of an incinerator. Although other aspects such as the waste handling, gathering, ash disposal, and controls are important, it is the combustion process that is paramount. There are two ways that the combustion process can be designed. Eith...

One promising way to achieve low temperature combustion regime is the use of a large amount of cooled EGR. In this paper, the effect of injection timing on low temperature combustion process and emissions were investigated via three dimensional computational fluid dynamics (CFD) procedures in a DI diesel engine using high EGR rates. The results show when increasing EGR from low levels to levels...

The combustion process of virgin and reprocessed polylactide (PLA) was simulated by multi-rate linear non-isothermal thermogravimetric experiments under O(2). A complete methodology that accounted on the thermal stability and emission of gases was thoroughly developed. A new model, Thermal Decomposition Behavior, and novel parameters, the Zero-Decomposition Temperatures, were used to test the t...