Modeling of combustion synthesis in multilayer gasless system
A combustion model for a flat layered composition has been developed, where chemically active layers alternate with inert metallic layers with high thermal conductivity. The heat exchange between the layers was specified by the conjugate boundary conditions. A numerical study of gasless com...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
VINCA Institute of Nuclear Sciences
2019-01-01
|
| Series: | Thermal Science |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0354-9836/2019/0354-983619569P .pdf |
| Summary: | A combustion model for a flat layered composition has been developed, where
chemically active layers alternate with inert metallic layers with high
thermal conductivity. The heat exchange between the layers was specified by
the conjugate boundary conditions. A numerical study of gasless combustion
of a multi-layer system with heat-conjugated layers of two types was
performed. Optimal layer sizes and parameters of the layer system were
obtained to provide the maximum burning rate of the layer package. The
effect of increasing the burning rate was found to be associated with heat
recovery and an increase in the effective thermal conductivity of the
system. The concentration limits of combustion were determined depending on
the volume content of the inert element. Replacing the system of inert
layers with that of low-calorie mixture layers leads to a model for
synthesis of inorganic materials in the "chemical furnace" mode. |
|---|---|
| ISSN: | 0354-9836 |