This question arises out of this question on Quora - Apollo 11: 1969 Moon Landin

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This question arises out of this question on Quora - Apollo 11: 1969 Moon Landing: Did Neil Armstrong really land on the moon?

I'm convinced with most of the explanations provided in the first answer to that question. None of these conspiracy theories have bothered me. However one thing that confuses me is the heat.

On earth close to 47% of heat is absorbed or reflected by the atmosphere. On moon an object would get struck directly with thermal radiation from sun acquiring about 50% more heat then it would on earth.

I am wondering what kind of cooling device could we create for such an environment? A system like an AC or a refrigerator won't work in a vacuum.

Off the top of my head the only method I could think of is circulating some liquid with high specific heat in the suits and letting it evaporate.

But is this feasible? How much heat do we need to loose? What rate of evaporation would be needed? What volume of liquid would be needed to support this rate? Given the high amount of electricity it takes to makes our refrigerators work how much electricity would such a system need?

Because of very large amount of heat and large surface area (the lunar module, the suits, and the camera casings) I'd assume a large quantity of water (say a few thousand liters) would be needed. How could they carry such a large amount of fluid?

Explanation / Answer

Priv?t. These are real-world questions that NASA, Russian/Soviet space program, and others of course had to be solving

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