Constructal structures with and without high-conductivity inserts for self-cooling
| Autor: | Erdal Cetkin |
|---|---|
| Přispěvatelé: | Çetkin, Erdal, Izmir Institute of Technology. Mechanical Engineering, Izmir Institute of Technology |
| Rok vydání: | 2016 |
| Předmět: |
Fluid Flow and Transfer Processes
High-conductivity Materials science Constructal law High conductivity Mechanical Engineering Constructal design Inverted fins 02 engineering and technology Constructal Conduction Condensed Matter Physics Thermal conduction High-conductivity materials 01 natural sciences 010305 fluids & plasmas 0103 physical sciences 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Composite material Self-cooling Heat conduction |
| Zdroj: | International Journal of Heat and Technology. 34 |
| ISSN: | 0392-8764 |
| DOI: | 10.18280/ijht.34s105 |
| Popis: | Cetkin, Erdal/0000-0003-3686-0208 WOS: 000383470400006 Here we show how a heat generating domain can be gained self-cooling capability with embedded cooling channels and with and without high-conductivity fins. The volume of the heat generating domain is fixed, so is the overall volume of the cooling channels and high-conductivity inserts. Even though the coolant volume decreases with embedded high-conductivity fins, the peak temperature also decreases with high-conductivity inserts. The peak temperature is affected by the location, shape and complexity of the fins and the volume fraction. This paper documents how these degrees of freedoms should be changed in order to minimize peak temperature. This paper also discusses how the volume fraction affects each fin shape in order to minimize the peak temperature. This paper uncovers that the fins should be distributed non-equidistantly, and that high-conductivity material should be inserted as fins (bulks of high-conductivity materials) rather than uniform distribution in the domain. This paper concludes that the overall thermal conductance of a heat generating domain can be maximized by freely morphing the shape of the high-conductivity material. The optimal design exists for given conditions and assumptions, and this design should be morphed when conditions and assumptions change. This conclusion is in accord with the constructal law. Each optimal design for given conditions and assumptions is the constructal design. |
| Databáze: | OpenAIRE |
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