9–13 Jul 2017
Monona Terrace Community and Convention Center
US/Central timezone

Investigations of Heat Transfer in Vacuum Between Room Temperature and 80 K

12 Jul 2017, 15:00
15m
Madison Ballroom BC

Madison Ballroom BC

Speaker

Mr Joshua Hooks (LeTourneau University)

Description

The heat transfer between room temperature and 80 K is controlled using various insulating material combinations. The modes of heat transfer are well established to be conduction and thermal radiation when in a vacuum. Multi-Layer Insulation (MLI) in a vacuum has long been the best approach. Typically this is applied to the cold surface. This paper investigates the application of MLI to both the cold and warm surface to see whether there is a significant difference. In addition if MLI is on the warm surface, the cold side of the MLI may be below the critical temperature of some high temperature superconducting (HTS) materials. It has been proposed that HTS materials can serve to block thermal radiation. An experiment is conducted to measure this effect. Boil-off calorimetry is the main method of measuring the heat transfer.

Authors

Mr Joshua Hooks (LeTourneau University) Jonathan Demko (LeTourneau University) James Fesmire (NASA) Mr Takuya Matsumoto (LeTourneau University)

Presentation materials

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