Abstract
VIPs (vacuum insulation panels) with super-stratified glass fiber core material were prepared by CSB (centrifugal-spinneret-blow) process. The fiber orientation of the super-stratified glass fiber core material was concentrated in the X-Z plane which was perpendicular to the heat transfer direction. The initial thermal conductivity of this novel VIPs was only 1.25 mW/(m K) which performs up to two times more thermal insulation than conventional wet core material (2.62 mW/(m K)). The thermal conductivity of VIP with CSB-3. μm was significantly lower than that calculated from the theoretical curves with mean pore size of 10 μm. The results demonstrated that thermal conductivity of VIP with CSB-3. μm attained 1.25, 1.76, 2.04, 2.91, 3.45, 4.58, 9.16, 13.03 mW/(m K) under the pressure of 0.03, 0.06, 0.09, 0.3, 0.5, 0.9, 5 and 10 mbar, respectively. This is a great breakthrough to dramatically increase the service life-span of VIP with glass fiber core material. Their further advantages compared to conventional wet process are their lower energy consumption and cost.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 945-954 |
| Number of pages | 10 |
| Journal | Energy |
| Volume | 93 |
| DOIs | |
| State | Published - Dec 15 2015 |
| Externally published | Yes |
Keywords
- Core material
- Glass fiber
- Thermal conductivity
- Vacuum insulation panels
ASJC Scopus subject areas
- Mechanical Engineering
- General Energy
- Pollution
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
- Management, Monitoring, Policy and Law
- Industrial and Manufacturing Engineering
- Building and Construction
- Fuel Technology
- Renewable Energy, Sustainability and the Environment
- Civil and Structural Engineering
- Modeling and Simulation