TY - RPRT
T1 - Evacuation and assembly of aerogel glazings
AU - Jensen, Karsten Ingerslev
PY - 1999
Y1 - 1999
N2 - The application of monolithic silica aerogel as transparent
insulation material for windows has been investigated for some
years. It has been realised that a major problem of an industrial
production of aerogel glazings will be the time for evacuation of
the aerogel material. However, in a previous EU project a
promising method was proposed, so the time for evacuation could be
reduced from several hours to a few minutes.The aim of this
project was to design and build an apparatus for evacuation and
assembly of aerogel glazings up to 60 cm x 60 cm based on the
proposed method.The key element of the method is the vacuum
chamber in which the aerogel glazing is prior to mounting of the
last glass pane. This glass pane is kept above the rest of the
glazing while the chamber is evacuated. When the desired gas
pressure is reached the glazing is assembled and the chamber is
ventilated. Due to the fast process, it can be considered as
semi-online, and especially the capital cost is significantly
lower for this method in comparison with a true online process. So
hereby, a major obstacle is overcome with respect to a first
industrial production of aerogel glazings.The apparatus has been
constructed and built, and by mean of this six aerogel glazings
have been made and four of those can be considered as fully
succeeded. The reasons for the failure of the two glazings are
perhaps due to the foil applied in the rim seal.The project serves
a the Danish input to a current EU project, in which one of the
main objectives is to develop a complete process for aerogel
glazings of 60 cm x 60 cm covering both the aerogel and the
glazing production.
AB - The application of monolithic silica aerogel as transparent
insulation material for windows has been investigated for some
years. It has been realised that a major problem of an industrial
production of aerogel glazings will be the time for evacuation of
the aerogel material. However, in a previous EU project a
promising method was proposed, so the time for evacuation could be
reduced from several hours to a few minutes.The aim of this
project was to design and build an apparatus for evacuation and
assembly of aerogel glazings up to 60 cm x 60 cm based on the
proposed method.The key element of the method is the vacuum
chamber in which the aerogel glazing is prior to mounting of the
last glass pane. This glass pane is kept above the rest of the
glazing while the chamber is evacuated. When the desired gas
pressure is reached the glazing is assembled and the chamber is
ventilated. Due to the fast process, it can be considered as
semi-online, and especially the capital cost is significantly
lower for this method in comparison with a true online process. So
hereby, a major obstacle is overcome with respect to a first
industrial production of aerogel glazings.The apparatus has been
constructed and built, and by mean of this six aerogel glazings
have been made and four of those can be considered as fully
succeeded. The reasons for the failure of the two glazings are
perhaps due to the foil applied in the rim seal.The project serves
a the Danish input to a current EU project, in which one of the
main objectives is to develop a complete process for aerogel
glazings of 60 cm x 60 cm covering both the aerogel and the
glazing production.
M3 - Rapport
BT - Evacuation and assembly of aerogel glazings
ER -