BILANTURI DE MATERIALE SI ENERGIE - Cadre Didactice
BILANTURI DE MATERIALE SI ENERGIE - Cadre Didactice
BILANTURI DE MATERIALE SI ENERGIE - Cadre Didactice
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BILANŢUL TERMIC<br />
o Entalpia transformărilor de fază se determină<br />
pe baza relaţiilor:<br />
– Pt. procesele de evaporare – condensare:<br />
evap<br />
cond<br />
0<br />
H<br />
0<br />
( g )<br />
( l )<br />
ΔH<br />
= −ΔH<br />
= ΔH<br />
− Δ<br />
– Pt. procesele de sublimare – desublimare:<br />
subl<br />
desubl<br />
0<br />
H<br />
0<br />
( g )<br />
( s )<br />
ΔH<br />
= −ΔH<br />
= ΔH<br />
− Δ<br />
– Pt. procesele de solidificare – topire:<br />
ΔH<br />
= −ΔH<br />
= ΔH<br />
− ΔH<br />
solidificare<br />
topire<br />
0<br />
0<br />
( s )<br />
( l )<br />
Lucian Gavrila – Bilanturi de materiale si de energie<br />
(70)<br />
(71)<br />
(72)<br />
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