Measuring Selected Parameters of Polypropylene Fibre Heat Exchangers

Fractal Geometry as an Effective Heat Sink

“…The steady solution is solid thermal diffusivity α s independent since the time derivative is zero, see Eq. (5). In this manner the solid fluid thermal conductivity ratio k defined as k = k s /k f is the only solid material parameter, arising from interface boundary condition Eq.…”

“…The geometry of heat sinks is subject of many recent articles [2][3][4][5][6]. The fractals are not an unknown topic in this subject.…”

“…In the next section Results and Discussion, the main subsection is the last one titled The infinite heat flow idea. Prior to this, various tests are performed for the shortest simulated fractal length (1/3) 5 = 0.004 in the fifth iteration consisting of 4 5 = 1024 elements: mesh sensitivity, Reynolds dependency for isothermal solution, influence of solid/fluid thermal conductivity ratio and influence of Reynolds number value on thermal solution. The paper finishes with concluding remarks on enhanced heat sinks using fractal geometry.…”