PRIJENOS ENERGIJE VO ENJE TOPLINE - phy
PRIJENOS ENERGIJE VO ENJE TOPLINE - phy
PRIJENOS ENERGIJE VO ENJE TOPLINE - phy
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KONDUKCIJA<br />
TOPLINSKA <strong>VO</strong>DLJI<strong>VO</strong>ST NEKIH MATERIJALA<br />
Fourierov zakon:<br />
∆T<br />
Q = −λ ⋅ ⋅ S ⋅τ<br />
∆x<br />
temperaturni<br />
gradijent<br />
S<br />
( λ )<br />
⎛<br />
= ⎜<br />
⎝<br />
Jm<br />
2<br />
Km s<br />
⎞<br />
⎟<br />
⎠<br />
−1<br />
−1<br />
( λ ) = ( WK m )<br />
toplinski tok:<br />
Q<br />
Φ =<br />
τ<br />
Φ<br />
S<br />
Q<br />
τ ⋅ S<br />
∆T<br />
∆x<br />
gustoća toplinskog toka:<br />
−2<br />
q = = = −λ<br />
⋅ ( Wm )<br />
2