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The Effect Of Variable Gravity On The Cooling Performance Of A 16-Nozzle Spray Array, Levi J. Elston Jan 2008

The Effect Of Variable Gravity On The Cooling Performance Of A 16-Nozzle Spray Array, Levi J. Elston

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The objective of this thesis was to investigate the cooling performance of a 16-nozzle spray array, using FC-72 as the working fluid, in variable gravity conditions with additional emphasis on fluid management and flow stability. A flight test experiment was modified to accommodate a 16-nozzle spray array, which was then tested in the parabolic flight trajectory environment of NASA's C-9 reduced gravity aircraft. The 16-nozzle array was designed to cool a 25.4 x 25.4 [mm] area on a thick film resistive heater used to simulate electronic components. Data was taken and reduced as a result of flight ...