Cooling a craft if the external temperature is higher than the medium you are using to cool it is?
Cooling a craft if the external temperature is higher than the medium you are using to cool it is?
(OP)
I am trying to figure out how to cool a craft's internal space but i am running into a problem where i am having trouble understanding how a craft could be cooled if the external temperature would be hotter where the heat dump is. I need some help understanding how you could transfer the internal heat and transfer it out of the craft and away from the vehicle if the external temperature is higher than the medium you are using to cool the craft would be. For instance if you were sending a craft into the core of the planet, how could you cool the craft if the external temperature is higher than the temperature of the fluid you are using to care the heat away with is exceeded. Would that not reverse the heat flow and pump heat back into the system thus defeating the purpose of the cooling system? Any help with this subject would be greatly appreciated. I look forward to hearing from all of you. Yes, i know this is a basic thermodynamics question, but i am just looking to get my head around this and understand any way to transfer the heat out of the internal area of the craft and into the surrounding environment. Also please let me know if i am totally not understanding how this could work and that there is no way to cool the internal space. I just want to know if i'm either correct in assuming that heat transfers from high temperature to low temperature or if there is other ways to transfer the heat that i don't know of.





RE: Cooling a craft if the external temperature is higher than the medium you are using to cool it is?
Cheers
Greg Locock
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RE: Cooling a craft if the external temperature is higher than the medium you are using to cool it is?
Thank you.
RE: Cooling a craft if the external temperature is higher than the medium you are using to cool it is?
TTFN
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RE: Cooling a craft if the external temperature is higher than the medium you are using to cool it is?
RE: Cooling a craft if the external temperature is higher than the medium you are using to cool it is?
The surface temperature of Venus is 700 F , the landers internal electronics will fry at 300 F.
Solution - insulated box - with electronics inside, liquid next then the insulation on the hot outside.
Some liquid was chosen that would vaporize to "take away the heat" that was flowing from the 700 F to the 300 F.
Once all the liquid had vaporized the electronics fried - maybe 2 hours since landing.