This Independent Project reviews literature about the effect of pressure and temperature on thermal conductivity in packed beds and its relationship with electrical conductivity. Exploring the relationships between thermal conductivity, porosity and pressure can give useful knowledge for further improvements in manufacturing processes in the field of powder metallurgy. The resulting theoretical models describing the effective thermal conductivity show that gas and contact conductance dominate at lower temperatures and that radiation gains dominance as the temperature increases. Modifications of the models covered in this report can be made in order to simulate the process of interest more accurately. It was also shown that Wiedemann-Franz law could be of interest when wanting to quantify the thermal conductivity in a powder compact. Furthermore, a lab manual for a future Independent Project was developed.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-387636 |
| Date | January 2019 |
| Creators | Tran, Sam, Lindborg, Niklas, De Souza Vivedes, Danilo, Sjölund, Johanna, Enblom, Veronica, Sjödin, Mattias |
| Publisher | Uppsala universitet, Institutionen för teknikvetenskaper, Uppsala universitet, Institutionen för teknikvetenskaper, Uppsala universitet, Institutionen för teknikvetenskaper, Uppsala universitet, Institutionen för teknikvetenskaper, Uppsala universitet, Institutionen för teknikvetenskaper, Uppsala universitet, Institutionen för teknikvetenskaper |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | TVE-K ; 19004, TVE-Q ; 19003 |
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