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# Georgia Tech - CHE 3200 - Class Notes - Week 12

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Georgia Tech - CHE 3200 - Class Notes - Week 12

##### Description: We looked at special cases of heat flow, steady-state conditions, Heat sinks, and fins
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##### Description: We looked at special cases of heat flow, steady-state conditions, Heat sinks, and fins
2 Pages 47 Views 37 Unlocks
• Notes, Study Guides, Flashcards + More!

Unformatted text preview: SS 2t Tues. Now 6 Special Cases 1) No internat heat souites (0) and cost. K ko't PCV og B) No flied motion (0-0) --> T . DT +4 Isdid material (Salu) and k censt. O'T-9/2Cp no heat less heat supplies thermal diffusivity of VT0 l o aplace Equ) (Fourier Field Eq) D (Poisson - Ep.) in order to selve these equation, we need: > Initial conelitians: Tland D) at starting time Note: T. can be a complicated profile Toky) ANDIOR 2) Borary Conditions : Tlondo) for specific locations, such as no slip comietitions ; D = Vwete iso thermal boundary: To lomst at wall insoleled boundary: no heat flow through well-> ATTEO T=0 - eguality of hest flow in steady state: fin foot o d interface Horection : 4 comelweliem Sokid Toolid in Altun -t,). - KAITSE The Wu (That-T). - similarly @ interface hel-Tau -k xeStroc y State Conduction Steady Slate Carelucties in Adalid 0 0: 0 90-KOTED Erample: cylinder with inter well (.) kept of T aid outer well (Raul kept and T. Cousteat Rino heat generatiem :O Glimetrical coordina bes vt cream 1-0 are const=6 B.C. CIARE +62-T; > Tra Colette Colm Rello-ta AGH). To-t, 24 mi =>G.Ti- Linki : Tiflanku-taki] - Cru -Ti duke Tilme - Tolna In Inter) Tere - in the glass Tile Tiles halet 7(r): -KADT > KAT : 25L (T-Teler in lente) Thermal resistance: R. . While) The Now &] Heat Sinks Die T.; hay Wik UUUL (22.5..612mm Example: flat plate with straighl lines Tu r 74 Cousing For imof wall, A lm? 74 -0.00127. 0.0 ? Mill sted plate: ks 42,9 WILK ans with 71 L t > for water: Poster 171 A = 742 -0,75 + 0.ver29) 8p: 0.55 seth 250kfor water side: Roh ni (At 711) sor compared to the cost without fins fer siri MELJ TEE) = 0.362 => Rous p=0,45 compared to i n the without fius hal Hot74) 554

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