Metoda uproszczona obliczania sezonowego zapotrzebowania na ciepło |
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Współczynnik kształtu: A/V |
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0.325206141597953 |
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Dane: budynek 5 kondygnacji, podpiwniczony (nieogrzewana piwnica) |
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mieszkań |
20 |
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mieszkańców |
80 |
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wysokosć pom w świetle |
2.6 |
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Qt=Qz+Qo+Qd+Qp+Qpg+Qsg+Qsp |
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powierzchnia mieszkań |
1400 |
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kubatura mieszkań |
3640 |
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kubatura klatek |
580.4 |
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kubatura ogrzewana |
4220.4 |
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Geometria |
m2 |
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kWh/a |
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orientacja |
ściany |
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mnożnik |
U(W/m2*K) |
A*U*mnożnik |
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S |
159.5 |
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100 |
0.4 |
6380 |
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W |
134.9 |
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100 |
0.4 |
5396 |
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N |
199.8 |
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100 |
0.4 |
7992 |
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E |
185 |
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100 |
0.4 |
7400 |
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679.2 |
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TR |
norma Si |
Aok*TR*Si |
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orientacja |
okna |
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wsp.słońca |
kwh/m2*a |
kWh/a |
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S |
38.4 |
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100 |
2 |
7680 |
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0.62 |
350 |
8332.80 |
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W |
79.8 |
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100 |
2 |
15960 |
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0.62 |
220 |
10884.72 |
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N |
30 |
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100 |
2 |
6000 |
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0.62 |
145 |
2697.00 |
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E |
28.1 |
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100 |
2 |
5620 |
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0.62 |
235 |
4094.17 |
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suma |
176.3 |
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suma |
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26008.69 |
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szyba/rama |
0.6 |
15605.21 |
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Stropodach |
258.5 |
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100 |
0.3 |
7755 |
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strop nad piwnicą |
258.5 |
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70 |
0.6 |
10857 |
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pole przegród |
1372.5 |
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straty razem |
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950.6 |
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okna o współczynniku przenikania |
2 |
W/m2*K |
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wsp. Przepuszczania prom. Słon. |
0.62 |
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norma m3/h |
ilość powietrza |
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Łazienki + WC oddzielne |
20 |
80 |
1600 |
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kuchnie |
20 |
70 |
1400 |
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mnożnik |
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strata wentylacji |
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Zyski ciepła od słońca normowe |
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ilość powietrza wentylacyjnego |
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3000 |
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38 |
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114000 |
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TR kWh/m2 |
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S |
350 |
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Wewnętrzne zyski ciepła |
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80*N |
275*Lm |
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SW |
310 |
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liczna osób N |
80 |
6400 |
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W |
220 |
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liczba mieszkań Lm |
20 |
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5500 |
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NW |
160 |
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suma zysków kWh/a |
5,3*(80*N+275*Lm) |
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63070 |
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N |
145 |
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NE |
165 |
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E |
235 |
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Sezonowe zapotrzebowanie na ciepło: |
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SE |
320 |
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Qh=Qt+Qv - 0,9(Qs+Qi) |
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44143 |
kWh/rok |
158.91 |
GJ/rok |
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wskaźnik zużycia |
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31.53 |
kWh/m2*a |
0.11 |
GJ/m2*a |
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Współczynniki przepuszczania promieniowania słonecznego |
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Wskaźnik Q/V |
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10.46 |
kWh/m3*a |
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szyba |
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TR |
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pojedyńcza |
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0.82 |
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podwójna |
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0.7 |
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potrójna lub zespolana z powł.niskoemisyjną |
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0.64 |
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j.w. lecz z argonem |
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0.64 |
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dwukomorowa z powłoką niskoemisyjną |
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0.55 |
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transparentna |
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0.5 |
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(czasem podaje producent) |
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