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TRANSFERUL DE CĂLDURĂ - Cadre Didactice

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osau<br />

2/14/2003<br />

ECUAŢIILE DIFERENŢIALE ALE<br />

CONDUCTIVITĂŢII TERMICE<br />

⎛ ∂T<br />

∂T<br />

∂T<br />

⎞<br />

q = −λ<br />

⎜<br />

⎟<br />

⎜ + + = − ∇T<br />

x y z ⎟ λ (24)<br />

⎝ ∂ ∂ ∂ ⎠<br />

o λ = coeficient de conductivitate termică<br />

sau, pe scurt, conductivitate termică.<br />

o Dimensional, [λ] =[W x m -1 x K -1 ]<br />

LUCIAN GAVRILĂ – Fenomene de transfer II<br />

42

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