Schematic Power Amplifier Untuk Live

EXTERNAL WALL THERMAL TRANSMITTANCE

scattering coefficient of the exterior walls

Materials ............... thickness ...........W components / mK
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wall hardwood .......... 0.100 ................ 0.110
mineral wool insulation ................ ....... 0.050 0.040
bladder ............... ......... ................ 0.050 0.025
peening hardwood .... ............. 0.025 ... 0.110
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U = kt = 1 / a the + 0.100 / + 0.110 0.050 / 0.040 + 0.025 / 0.11 + 1 / a and

to the coefficient of internal supply = 7 for vertical surfaces, according to rules UNI-7357/74
e = coefficient of external supply = 20 for vertical surfaces, according to Standard UNI-7357/74

U k = heat = 0.14 + 0.90 + 1.25 + 2.00 + 0.227 + 4.567 = 0.05 m2 K / W thermal
U = k = 1 / 4, 567 = 0.218 W/m2K