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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

Rick HutchingsWeek 8: March 8th, 2007

Thermal Control

Insulation and COM Sat Thermal Control


Com sat thermal control
COM SatThermal Control

Gangale Sat

Q = 20 kW

Mars Sat

Q = 5kW

Rick Hutchings - 2


Tank insulation thickness
Tank Insulation Thickness

MLI for LOX and LH2 tanks

Spray on Foam for External Tanks

Rick Hutchings - 3


References
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.

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Back up slides
Back-up Slides

From Table 16-7 in Larson, Wiley, and Pranke, Linda, ref. 2

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A = Q/q

q: heat rejection rate(W/m2)

Q: heat load

= ((52.5 – 15.448)*1000)/171

=216.678m2

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Heat rejection
Heat Rejection

  • Q = esAT4

    = 0.75*5.67e-8*207.345*(249.2)4

    = 34 kW

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Heat rejection for mli
Heat Rejection for MLI

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Updated numbers
Updated Numbers

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Insulation
Insulation

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De insulation
dE Insulation

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Ispp insulation
ISPP Insulation

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