Application of Silica Aerogel as Cryogenic Insulation
[KARTHIK R N,LASITHAN L G,Dr. V SEKKAR] Volume 1: Issue 1, Jan 2014
Abstract:-—The work deals with the study on the evaluation of silica aerogel blanket for cryogenic applications in space launch vehicles. An experimental investigation has been done to compare the thermal conductivities, thermal resistance of insulation of aerogel based insulations with foam insulations by simulating cryogenic conditions at room temperature and pressure. The study evaluates thermal parameters on the basis of insulation thicknesses and cryogen evaporation kinetics. Separate mathematical models have been formulated on the basis of the variation with thickness to compare the effectiveness of aerogel based cryogenic insulations.
Keywords:-—Thermal conductivity, Thermal resistance of insulation, Cryogenic insulation, Insulation thickness.
REFERENCESVictor E Bergsten, John Notaro, Richard B Mazzarella and Christian F Gottzmann. ―Low Heat-leak, Coherent - Aerogel, Cryogenic System.‖ U.S. Patent 5,386,706, Feb. 7, 1995.
Richard John Jibb, John Henri Royal, Norman Henry White, Steve Alan Schweichler and Wevone Hobbs. ―Cryogenic Aerogel Insulation System.‖ U.S. Patent 2007/0220904 A1, Sep. 27, 2007.
Zhou Xiang-fa, Feng Jian and Jiang Yong-gang.― Performance and Heat Transfer Simulation of Silica Aerogel Composites.‖ Journal of National University of Defense Technology, vol. 2, pp. 12-19, 2009.
 ] J Afonso, I Catarino, R Patrício and A Rocaboy. ―Liquid nitrogen energy storage unit.‖ Cryogenics, vol. 51, pp. 621-629, 2007.
To view full paper, Download here .