A methodology has been established aiming to design a lightweight thermal protection system (TPS), using advanced lightweight ablative materials developed at the NASA Ames Research Center. An explicit finite-difference scheme is presented for the analysis of one-dimensional transient heat transfer in a multilayer TPS. This problem is solved in two steps, in the first step, best candidate materials are selected for TPS. The selection of materials is based mainly on their thermal properties. In the second step, the geometrical dimensions are determined by using an explicit finite-difference scheme for different combinations of the selected materials, and these dimensions are optimized for the design of lightweight TPS. The best combination of material employs silicone impregnated reusable ceramic ablator (SIRCA), Saffil, and glass-wool for the first, second, and third layer, respectively.
Selection of Materials and Design of Multilayer Lightweight Passive Thermal Protection System
Indian Institute of Technology Mandi,
Mandi 175001, Himachal Pradesh, India
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received June 1, 2015; final manuscript received September 16, 2015; published online November 17, 2015. Assoc. Editor: Hongbin Ma.
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Kumar, S., and Mahulikar, S. P. (November 17, 2015). "Selection of Materials and Design of Multilayer Lightweight Passive Thermal Protection System." ASME. J. Thermal Sci. Eng. Appl. June 2016; 8(2): 021003. https://doi.org/10.1115/1.4031737
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