Vacuum Glazing with Stainless Steel Edge Seal
Vacuum glazing (VG) can greatly improve the energy efficiency of building by employing a vacuum gap between two glass panes.Usually,fused edge seal is made at the periphery of the gap to retain vacuum.Support pillars are positioned to maintain the gap against the atmospheric compression.In VG,there are four heat transfer paths,i.e.,through pillars,residual gas,radiation and edge of VG.A significant amount of heat loss occurs through the edge of conventional VG.Therefore,the edge of VG should be improved for further application and commercialization.For this purpose,VG with stainless steel edge seal is conceived.By replacing the fused edge with a very thin stainless steel cover,conduction through edge of VG is tremendously reduced.Poly-urethane(PU) adhesive is used to glue the stainless steel and the glass.However,gas permeation occurs from the atmosphere to inside of VG through the adhesive.For this reason,feasibility of VG using PU adhesive is verified by estimating the service lifetime Further improvement by employing lateral bumps on the surface of stainless steel is also studied numerically,which is found to substantially reduce gas permeation through the edge seal.
vacuum glazing polyurethane adhesive service lifetime
Won Kyeong Kang Tae-Ho Song
Korea Advanced Institute of Science and Technology, Daejeon, Korea
国际会议
The 12th International Vacuum Insulation Symposium (IVIS 2015)(第十二届国际真空绝热材料会议)
南京
英文
250-253
2015-09-01（万方平台首次上网日期，不代表论文的发表时间）