Abstract
The porosity of fibrous porous materials is an important factor to the thermal insulating performance of the material. This paper considers both the optimal porosity of uniform fibrous battings and the optimal distribution of the porosity of non-uniform fibrous battings for thermal insulation. The former was determined by an approximate analytical solution and a numerical simulation by using Finite Volume Method, and the latter was studied by applying Simulated Annealing Method. The study showed that the optimal porosity of uniform fibrous porous materials is very much dependent on fiber emissivity, and fiber radius, but little influenced by the temperature difference of the boundaries. For non-uniform fibrous materials, there can be an optimal distribution of porosity, which can be predicted by applying the Simulated Annealing Method.
Original language | English |
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Title of host publication | 2007 Proceedings of the ASME/JSME Thermal Engineering Summer Heat Transfer Conference - HT 2007 |
Pages | 203-208 |
Number of pages | 6 |
Volume | 3 |
DOIs | |
Publication status | Published - 1 Dec 2007 |
Event | 2007 ASME/JSME Thermal Engineering Summer Heat Transfer Conference, HT 2007 - Vancouver, BC, Canada Duration: 8 Jul 2007 → 12 Jul 2007 |
Conference
Conference | 2007 ASME/JSME Thermal Engineering Summer Heat Transfer Conference, HT 2007 |
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Country/Territory | Canada |
City | Vancouver, BC |
Period | 8/07/07 → 12/07/07 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering
- Condensed Matter Physics