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Rick Hutchings Week 8: March 8 th , 2007

Rick Hutchings Week 8: March 8 th , 2007. Thermal Control Insulation and COM Sat Thermal Control. COM Sat Thermal Control. Gangale Sat Q = 20 kW. Mars Sat Q = 5kW. Rick Hutchings - 2. Tank Insulation Thickness. MLI for LOX and LH2 tanks Spray on Foam for External Tanks.

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Rick Hutchings Week 8: March 8 th , 2007

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  1. Rick HutchingsWeek 8: March 8th, 2007 Thermal Control Insulation and COM Sat Thermal Control

  2. COM SatThermal Control Gangale Sat Q = 20 kW Mars Sat Q = 5kW Rick Hutchings - 2

  3. Tank Insulation Thickness MLI for LOX and LH2 tanks Spray on Foam for External Tanks Rick Hutchings - 3

  4. References • Fischer, Mark. Thermal Control. Feb 1995. University of Texas. 21 Jan 2007. <http://www.tsgc.utexas.edu/archive/subsystems/thermal.pdf> • Larson, Wiley and Pranke, Linda. Human Spaceflight Mission Analysis and Design. St. Louis: McGraw-Hill Companies (Pg. 513-537) • “Project Legend.” Spring 2005 Purdue University. 5 Jan 2007 (Pg. 285 289) <https://engineering.purdue.edu/AAE/Academics/Courses/ aae450/2005/spring> • Gilmore, David G. Spacecraft Thermal Control Handbook. California: The Aerospace Corporation • Martin, J.J. and Hastings, L. Large-Scale Liquid Hydrogen Testing of a Variable Density Multilayer Insulation with a Foam Substrate. June 2001. NASA • NASA Facts. External Tank Return to Flight Focus Area Thermal Protection System. August 2004. Rick Hutchings - 4

  5. Back-up Slides From Table 16-7 in Larson, Wiley, and Pranke, Linda, ref. 2 Rick Hutchings - 5

  6. A = Q/q q: heat rejection rate(W/m2) Q: heat load = ((52.5 – 15.448)*1000)/171 =216.678m2 Rick Hutchings - 6

  7. Heat Rejection • Q = esAT4 = 0.75*5.67e-8*207.345*(249.2)4 = 34 kW Rick Hutchings - 7

  8. Heat Rejection for MLI Rick Hutchings - 8

  9. Updated Numbers Rick Hutchings - 9

  10. Insulation Rick Hutchings - 10

  11. dE Insulation Rick Hutchings - 11

  12. ISPP Insulation Rick Hutchings - 12

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