- #1
Hazzattack
- 69
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Thanks for any help in advance. I'm currently doing random physics problems in preparation for my exam. I came across this one and thought I'd give it a go. The question at hand is,
A space probe has a 100W thermal energy source and is in deep space after some years of travel.
The surface of the probe is black and has an area of approximately 6m^2. The power is internal to the space probe. Determine approximately:
1. The temperature of the unmodified space probe
2. The temperature of the space probe if a thin thermal shield (also black) surrounds the space probe. The shield is attached close to the probes surface by a number of thermally insulating supports.
For the first part i assumed the power source was at the center of the spacecraft and radiated outwards, hitting the entire spacecraft evenly. I calculated the temperature using Stefan-Boltzman law.
for part 2. I thought this was to do with the law of conduction but I can't really seem to get anywhere with it and the more time I spend on it the more I'm convinced the way I thought I had solved the first part is wrong...
Some guidance would be greatly appreciated.
P = σAT^4
dq/dt = Ka dT/dx
A space probe has a 100W thermal energy source and is in deep space after some years of travel.
The surface of the probe is black and has an area of approximately 6m^2. The power is internal to the space probe. Determine approximately:
1. The temperature of the unmodified space probe
2. The temperature of the space probe if a thin thermal shield (also black) surrounds the space probe. The shield is attached close to the probes surface by a number of thermally insulating supports.
For the first part i assumed the power source was at the center of the spacecraft and radiated outwards, hitting the entire spacecraft evenly. I calculated the temperature using Stefan-Boltzman law.
for part 2. I thought this was to do with the law of conduction but I can't really seem to get anywhere with it and the more time I spend on it the more I'm convinced the way I thought I had solved the first part is wrong...
Some guidance would be greatly appreciated.
Homework Equations
P = σAT^4
dq/dt = Ka dT/dx