Matter behavior

The increased emphasis on coal usage in this country and, indeed, the significant effort underway to consider coal water mixtures as possible oil substitutes in oil-designed boilers underscores the need to improve the prediction of mineral matter behavior in a boiler environment. 

Clearly there is a need for improved techniques for predicting the behavior of mineral matter. This paper will provide a statement of the ash deposition problem in pulverized coal fired boilers it will present an assessment of the older, traditional methods for predicting mineral matter behavior and it will address some of the newer techniques that have been suggested as better ways of characterizing coal ash behavior. Additionally some areas of uncertainty will be identified which require the development of better predictive techniques. 

Despite considerable research in these areas, there are gaps in our fundamental understanding of the mechanisms responsible for mineral matter behavior. The importance of furnace operating conditions on the combined results of each of the above areas must be stressed. For a given coal composition, furnace temperatures and residence times generally dictate the physical and chemical transformations which occur. The ash formation process is primarily dependent on the time/temperature history of the coal particle. 

LOVELL Mineral Matter Behavior during Coal Beneficiation... 

The most far-reaching general feature of CDC is that it gives access to the next step in complex matter behavior, that is to systems capable of adaptation through constimtional variation by dynamic selection of components, which is on the road... 

Through approximations and the use of molecular simulation, however, application of statistical mechanics to real fluids has provided enhanced understanding of their behavior and improved description of it through equations of state. Furthermore, the molecular approach of statistical mechanics, as compared to the macroscopic one of traditional thermodynamics, combined with molecular simulation renders it a very useful tool in new applications biochemical processes prediction of matter behavior at and near surfaces, for example in porous materials or thin films ceramic materials polymers etc. 

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