Accession Number : AD1024111

Title :   A Designer Fluid For Aluminum Phase Change Devices: Aluminum Inorganic Aqueous Solutions (IAS) Chemistry and Experiments. Volume 2

Descriptive Note : Technical Report,29 Jun 2015,26 Sep 2016

Corporate Author : University of California, Los Angeles Los Angeles, United States

Personal Author(s) : Subblebine,Michael J ; Catton,Ivan ; Yao,Qi

Full Text :

Report Date : 17 Nov 2016

Pagination or Media Count : 190

Abstract : Aluminum thermo-syphon and heat pipes were explored theoretically and tested experimentally to verify efficacy of various inhibitor solutions in different thermo-syphon geometries tested under different test conditions. Simple corrosion tests were also carried out within a vacuumed chamber to determine relative amounts of hydrogen generated when an aluminum sample is in direct, static contact with a test fluid. The results demonstrate that while there is good evidence that inorganic inhibitors can significantly reduce the production of NCG in an aluminum-water heat pipe, the complex nature of two phase fluid circulation in such devices still presents serious challenges to the reliability and adoption of inhibitor fluids for critical thermal management needs.

Descriptors :   thermodynamics , heat transfer , heat pipes , heat transfer devices , latent heat , spacecraft , thermodynamic properties , electrochemical reactions , thermophysical properties , coatings , aluminum , CORROSION INHIBITION

Distribution Statement : APPROVED FOR PUBLIC RELEASE