LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
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3/14/2003<br />
Variaţia temperaturilor<br />
în timp şi în spaţiu<br />
o Înlocuind (252) în (249), rezultă:<br />
( ) T T<br />
0<br />
2 2 dt<br />
ln B<br />
−<br />
dQ = K ⋅ A ⋅ ⋅<br />
o Eliminand T 2 între (252) si (253):<br />
( ) B 1<br />
T T<br />
0<br />
dt<br />
1 2<br />
B ln B<br />
−<br />
dQ = K ⋅ A⋅<br />
− ⋅ ⋅<br />
⋅<br />
(253)<br />
(254)<br />
<strong>LUCIAN</strong> <strong>GAVRILĂ</strong> <strong>–</strong> <strong>Fenomene</strong> <strong>de</strong> <strong>transfer</strong> <strong>II</strong> 64
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