文档介绍：HIGHLY INSULATING AND LIGHT TRANSMITTI NG AEROGEL GLAZING FOR WINDOW
(HILIT AEROGEL WINDOW)
Karsten I. Jensen and Jørgen M. Schultz
DEPARTMENT OF CIVIL ENGINEERING (BYG·DTU)
TECHNICAL UNIVERSITY OF DENMARK
Contract JOR3-CT97-0187
PUBLISHABLE REPORT
1 November 1998 to 31 October 2001
Research funded in part by
THE MISSION
in the framework of the
Non Nuclear Energy Programme
JOULE III
HIGHLY INSULATING AND LIGHT TRANSMITTI NG AEROGEL GLAZING FOR WINDOW
(HILIT AEROGEL WINDOW)
Edited by
Karsten I. Jensen and Jørgen M. Schultz
Department of civil engineering (BYG·DTU)
Technical university of Denmark
2001
Contract JOR3-CT97-0187
Research funded in part by
THE MISSION
in the framework of the
Non Nuclear Energy Programme
JOULE III
ABSTRACT
The HILIT AEROGEL WINDOW project with participants from Denmark (coordinator), France, Germany, Norway and Sweden, was formulated in order to develop a safe and clean production of monolithic silica aerogel based on supercritical CO2 drying of the gels, to study the process parameters and to transfer the results from lab- to mid- and finally to large-scale making of 60 by 60 cm2 in a pre-industrial plant. The large samples forms the basis for assembly of evacuated aerogel glazings optimised with respect to thermal and optical properties.
The production process development and transfer to pre-industrial fabrication of aerogels has eeded in all details. A pilot plant for precursor elaboration has been established and precursors of required amount and quality has been delivered to all partners. Studies at lab-scale have identified the important parameters for optimising the mixing of the chemicals, which is the mixing rate and the HF (catalyst) flow rate. A mixing reactor have been designed and essfully transferred to large-scale application. A wet gel strengthening process has been developed and optimised at laboratory-scale and transferred at mid-scale with ess (concerning monolithicity). A direct supercriti