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Design af nyt energirigtigt vindue - Viden Om Vinduer

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Bilag 11, nr. 18<br />

<strong>Om</strong>regning <strong>af</strong> U-værdi fra Therm Nr. 18 Rudekombination:<br />

3 hulrum uventileret/uventileret/uventileret - lavemissionsbelægning på 0.1 4+30+4+20+4<br />

Metode 1<br />

U joint beregning med rude<br />

H rude<br />

U g<br />

Bilag<br />

0.19 m<br />

0.974 W/m²K<br />

U tot2 1.054 W/mK U joint 1.82 W/m²K<br />

L tot<br />

0.21 m<br />

L r 0.02 m U tot (U joint·L r) 0.036 W/mK<br />

Metode 2<br />

Med isoleringspanel<br />

Indre overgangsisolans 7.69 m²K/W<br />

Ydre overgangsisolans 25 m²K/W<br />

T isoleringspanel<br />

H isoleringspanel<br />

λ isoleringspanel<br />

U tot1<br />

L tot<br />

L r<br />

U tot2<br />

0.063 m<br />

0.19 m<br />

0.035 W/mK<br />

0.631 W/mK<br />

0.21 m<br />

0.02 m<br />

1.054 W/m²K<br />

U ramme<br />

1.79 W/m²K<br />

U g 0.974 W/m²K Linietab (Ψ) 0.001 W/mK<br />

U panel 0.509 W/m²K U tot (U ramme·L r+Ψ) 0.036 W/mK<br />

Therm beregning <strong>af</strong> 'ramme uden rude'<br />

U ramme<br />

1.74 W/m²K

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