18.06.2014 Views

Documentatie de proiectare ZBN

Documentatie de proiectare ZBN

Documentatie de proiectare ZBN

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Exemplu<br />

<strong>de</strong> calcul<br />

Potentialul <strong>de</strong> economie <strong>de</strong> energie<br />

al sistemului Zehn<strong>de</strong>r <strong>ZBN</strong>, 44.5 %<br />

Consum <strong>de</strong> energie<br />

100%<br />

144,5 %<br />

0 % 0 %<br />

Zehn<strong>de</strong>r <strong>ZBN</strong><br />

Alte sisteme,<br />

<strong>de</strong> ex. aeroterme<br />

Notiuni <strong>de</strong> baza<br />

Formula <strong>de</strong> calcul conform DIN V 18599<br />

1<br />

f<br />

h h,ce = Radiant· f int ·f hydr<br />

Qh,ce,mth =<br />

4 - (hL + h C + h B )<br />

h h,ce<br />

-1 Q h,mth<br />

Q h,ce,mth energia suplimentara necesara lunar pentru transmiterea caldurii, in kWh/luna<br />

Q h,mth necesarul energetic lunar, in kW/luna<br />

f hydr factor <strong>de</strong> echilibrare hidraulica<br />

f int factor pentru mod <strong>de</strong> utilizare intermitenta<br />

f Radiant factor <strong>de</strong> influenta a radiatiei<br />

h h,ce randament total <strong>de</strong> utilizare pentru transmiterea caldurii in incapere<br />

h L randament partial <strong>de</strong> utilizare pentru profilul vertical al temperaturii aerului<br />

h C randament partial <strong>de</strong> utilizare pentru reglarea temperaturii ambientale<br />

h B randament partial <strong>de</strong> utilizare pentru pier<strong>de</strong>rile specifice peretilor<br />

randament ai cladirii<br />

<br />

<br />

Alte conditii<br />

Inaltimea salii <strong>de</strong> 20 m, reglarea temperaturii<br />

ambientale ale celor doua sisteme prin intermediul<br />

regulatoarelor termostatice, repartizarea aerului cu un<br />

raport normal <strong>de</strong> inductie, evacuarea aerului in lateral.<br />

f hydr f int f Radiant h L h C h B<br />

Zehn<strong>de</strong>r <strong>ZBN</strong> 1,00 1,00 0,85 0,89 0,97 1,00<br />

Aeroterma 1,00 1,00 1,00 0,63 0,97 1,00<br />

Calcul<br />

Se obtine urmatorul factor pentru panourile radiante :<br />

Q h,ce,mth = - 0,031·Q h,mth<br />

Pentru aeroterme se obtine urmatorul factor :<br />

Q h,ce,mth = 0,400·Q h,mth<br />

Rezultat<br />

Cu panourile radiante Zehn<strong>de</strong>r <strong>ZBN</strong> se obtine o<br />

economie <strong>de</strong> energie <strong>de</strong>: 44,5 %.<br />

12

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!