LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
LUCIAN GAVRILĂ – Fenomene de transfer II - Cadre Didactice
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
3/14/2003<br />
Transfer global <strong>de</strong> căldură la<br />
potenţial termic variabil<br />
oRămâne valabil raţionamentul efectuat la<br />
<strong>transfer</strong>ul termic în echicurent, cu<br />
observaţia că diferenţele <strong>de</strong> temperatură<br />
care intervin în calculul valorii ∆ Tm au<br />
expresiile:<br />
ΔT<br />
1<br />
ΔT<br />
ΔT<br />
2<br />
m<br />
=<br />
=<br />
=<br />
T<br />
T<br />
1e<br />
1i<br />
−<br />
−<br />
ΔT<br />
1<br />
ln<br />
T<br />
T<br />
−<br />
2i<br />
2e<br />
ΔT<br />
ΔT<br />
ΔT<br />
1<br />
2<br />
2<br />
=<br />
ΔT<br />
<strong>LUCIAN</strong> <strong>GAVRILĂ</strong> <strong>–</strong> <strong>Fenomene</strong> <strong>de</strong> <strong>transfer</strong> <strong>II</strong> 41<br />
2<br />
ln<br />
−<br />
ΔT<br />
ΔT<br />
ΔT<br />
2<br />
1<br />
1<br />
(237)
Change language