09-01-2012, 06:21
Citazione:ASK ha scritto:
Ho solo segnalato che, nell'uso frigo, occorre una barriera vapore per impedire la condensazione dell'umidita' dell'aria all'interno del poliuretano espanso. Se la barriera vapore viene realizzata non da un rivestimento in alluminio, bensi in altro modo (VTR o altro) va bene lo stesso. Basta che ci sia.
Be in realta' hai ragione, da un sito tedesco :
Vacuum insulation panels: Advantages
The thermal conductivity in vacuum insulation panels (VIPs) is about ten times smaller than in conventional, non-evacuated insulation materials such as mineral or glass fibres, or polystyrene or polyurethane foams. VIPs with the same insulation thickness as conventional insulation materials therefore insulate about ten times better.
Vacuum insulation panels are more expensive than conventional, non-evacuated insulation materials. Thermal insulation systems using VIPs are therefore particularly attractive when saving space is essential and no other technical solutions are available.
In zwanzig Jahren wirst du dich mehr über Dinge ärgern, die du nicht getan hast, als über die, die du getan hast.
Also, wirf die Leinen und segle fort aus deinem sicheren Hafen. Fange den Wind in deinen Segeln. Forsche. Träume. Entdecke.
Also, wirf die Leinen und segle fort aus deinem sicheren Hafen. Fange den Wind in deinen Segeln. Forsche. Träume. Entdecke.
