By Marcio L. de Souza-Santos
Bridging the space among concept and alertness, this reference demonstrates the operational mechanisms, modelling and simulation of kit for the combustion and gasification of reliable fuels - truly illustrating strategies to enhance and optimize the layout of destiny devices and the operation of present business systems.
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Additional resources for Solid fuels combustion and gasification : modeling, simulation, and equipment operation
Sample text
The rates of heat and work exchanges between the control volume and surrounds are constant. Although conditions inside the control volume differ from point to point, they remain constant at each position. Therefore, a good portion of those can be treated as such with high or at least reasonable accuracy. Therefore, no description or evaluation of temperature, velocity, or concentration profiles in the studied equipment is possible. However, it should not be taken for granted because it may involve serious difficulties, mainly when many subsystems (or equipment) are considered in a single system.
An example is the thermal conductivity of the fluid in the bath where the temperature has been controlled. Any other variable should be maintained at constant value. Therefore, the observed variable would be the thermal conductivity, and the solution average temperature the controlled one. These correlations may take the form of graphs or mathematical expressions. 2 The SO2 absorption by limestone can be represented by the following reaction: Experiments to determine the kinetics of the reaction should be conducted under carefully chosen conditions; for example, Page 3 ● The sample of limestone should be put in a barge where it is exposed to various mixtures of SO2 and O2.
The moisture content at wet basis is given by the ratio between the lost mass during drying and the original mass of the sample. The volatile content at wet basis is given by the ratio between the lost mass during devolatilization and the original mass of the sample. The fixedcarbon content at wet basis is expressed by the ratio between the lost mass during the combustion and the original mass of the sample. ● Ash content at wet basis is given by the ratio between the mass of the residue from combustion and the original mass of the sample.