(Solved): solve problem 9.8 using the answer for 9.7 (the first figure posted above) = 0.85 857. walt ...

solve problem 9.8 using the answer for 9.7 (the first figure posted above)

= 0.85 857. walt 0.85 . Blakbody has efficiency so, it will have to dissipate 200 of heat.-13Bol sa bude brinet - Det EGATA ? ??? ?? ????? ? ???? ??? ??? ??? ? ???? ?? 200 4 - ????? ?? ?????? ???? ???? ???? 0.85 = 200 4 0.94 x 5.67 x 10-8XA X(31034 0.85 A = 0.478 m2 9.8 For the radiator of problem 9.7, the 50/50 water-glycol mixture freezes at about 230 K. To allow an appropriate safely margin, the radiator must be maintained at or above 250 K. What is the minimum power that must be dissipated by the radiator to maintain safe operation? If for any reason this level of power usage in the spacecraft cannot be maintained, what operational strategy might be used to avoid freezing the radiator? 3) Problem 9.8 in text. Please note that to solve this problem you need to solve problem 9.7 first. Use a simple radiation model for the spacecraft and outer space, but with considering efficiency.