Engineering Challenge: Thermal Protective System Lisa Brown Aerospace Education Specialist NASA-Johnson Space Center.

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Presentation transcript:

Engineering Challenge: Thermal Protective System Lisa Brown Aerospace Education Specialist NASA-Johnson Space Center

Thermal Protective System (TPS) Re-entry 1650°C (3000°F) Common TPS

TPS: How it works. Absorption High melting point Radiation Ceramic Tiles

Other TPS Systems

Heat and Heat Transfer Heat is energy. Direction of heat flow. Heat source and heat sink. Conduction Convection Radiation

Specific Heat the amount of heat necessary to move 1.00 gram of a substance 1.00 °C Note the two important factors: 1) It's 1.00 gram of a substance 2) and it moves 1.00 °C

Thermal Conductivity and Heat Capacity

The Challenge Build a thermal protection system (TPS), using the specified materials, that protects the model for the longest possible time. Design Constraints: Use only the specified materials to construct the TPS. No glue may be used in the TPS itself No part of the TPS may touch the dowel. No part of the TPS may touch the glue.

The Model

The Test

The Report

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