Timeline for Solar cell heating vs power draw
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
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| Jul 26, 2016 at 23:57 | comment | added | Andrew W. | Hum, you're right, the temperature would reduce temperature. However I think the reason is a bit more nuanced. The reason is that a current would reduce the number of electron hole pair recombinations, which in turn reduces waste heat. That's also assuming that the temperature increase from resistance is less than the cooling effect. | |
| Jul 26, 2016 at 22:11 | comment | added | Tristan | @AndrewW. Drawing power actually decreases their temperature. See my answer below. | |
| Jul 26, 2016 at 22:11 | answer | added | Tristan | timeline score: 1 | |
| Jul 26, 2016 at 21:19 | comment | added | Andrew W. | Some of the unused incident energy would be reflected as well as be converted to heat. Drawing power would definitely increase their temperature because of the current flow. The exact increase would depend on the current/voltage/resistance in the circuit. As far as their orientation and relation to temperature and efficiency I'm not sure. I have a friend on the Johnson Space Center ISS operations team. I'll see if she can help. (no promises) | |
| Jul 26, 2016 at 17:58 | comment | added | asdfex | I can't answer all of your questions, but an efficient solar cell only converts 20% of sun light into electricity. 80% end up as heat in the cells either way. 25% higher heat intake should not make a major difference with respect to lifetime and degradation. | |
| Jul 26, 2016 at 16:49 | history | asked | SF. | CC BY-SA 3.0 |