Citation
Abstract
This article examines the concept of utilizing the thermal attenuation characteristics of porous matrices and their thermal flywheel effect in damping the air temperature fluctuations for highly temperature-sensitive applications. The mathematical formulation of the problem in a dimensionless form is presented together with the relevant boundary conditions. The periodic temperature solution at a given matrix section has shown that the amplitude will be reduced by a logarithmic decrement and that the temperature cycle possesses a phase angle lag which depends on various flow and material properties, as well as the frequency of the temperature fluctuations. The effect of different material properties for porous matrix selection was examined by a numerical example.
Details
- Volume
- 42-54
- Published
- December 15, 1979
- Pages
- 104–113
- File Size
- 753.7 KB