Saturday, July 18, 2009
2 X Quad Core 2.4 Ghz Vs I7 950
Wednesday, July 15, 2009
Monday, July 13, 2009
Wednesday, July 8, 2009
Schematic Power Amplifier Untuk Live
EXTERNAL WALL THERMAL TRANSMITTANCE
scattering coefficient of the exterior walls
Materials ............... thickness ...........W components / mK
________________________________________________________
wall hardwood .......... 0.100 ................ 0.110
mineral wool insulation ................ ....... 0.050 0.040
bladder ............... ......... ................ 0.050 0.025
peening hardwood .... ............. 0.025 ... 0.110
________________________________________________________
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
scattering coefficient of the exterior walls
Materials ............... thickness ...........W components / mK
________________________________________________________
wall hardwood .......... 0.100 ................ 0.110
mineral wool insulation ................ ....... 0.050 0.040
bladder ............... ......... ................ 0.050 0.025
peening hardwood .... ............. 0.025 ... 0.110
________________________________________________________
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
Tuesday, July 7, 2009
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