Ryan Reynolds

Pharmacist—Optimist

[Ryan Reynolds @ryanrku]

The International Space Station’s (ISS) thermal radiators are designed to dissipate exactly 70 kilowatts of waste heat. Over a 24-hour period, this results in a maximum heat rejection capacity of 1,680 kWh per day. [1, 2, 3]
The station’s active thermal control system consists of two independent loops that circulate ammonia through massive, accordion-folding radiator panels. [2, 4, 5, 6, 7]
How They Work

• Continuous Dissipation: Space is an excellent insulator, so the heat generated by on-board electronics, experiments, and the crew needs to be actively pumped away.
• Energy Cost: Moving the fluid requires electrical energy. The system uses a pair of pump flow control assemblies that draw about 13.2 kWh per day (roughly 550 watts total) to push the ammonia fluid through the lines.
• Radiator Efficiency: The radiators emit heat as infrared radiation into the vacuum of deep space, relying entirely on the Stefan-Boltzmann law. To dump 1 kW of thermal energy, they require roughly 0.1 m² of radiator surface area. [4, 10, 11]

Could you provide a few more details on what you are looking to calculate? If you need assistance translating space radiator metrics to terrestrial heating or cooling systems, calculating radiator heat loss, or learning more about the ISS systems, just let me know how you would like to proceed. [2]

AI responses may include mistakes.

[1] https://t.co/aJScjRyZOb
[2] https://t.co/X8jzXGg03g
[3] https://t.co/2tDi5tzXRi
[4] https://t.co/h77kPaoZ9F
[5] https://t.co/hmQBLNQnHK
[6] https://t.co/2tDi5tzXRi
[7] https://t.co/qYR6kKfFsO
[8] https://t.co/W8Ezm9m0fq
[9] https://t.co/StfEGN4tI7
[10] https://t.co/7nUYf9TiM9
[11] https://t.co/VUTqIgcaIH

[Ryan Reynolds @ryanrku]

@OlivierRoggevn @ZacksJerryRig Yeah 2 is false. Radiation is less effective than conduction in otherwise equivalent systems, not “ineffective”. Radiation may be perfectly effective in a well designed system, especially when the cost to maintain efficient conduction is prohibitive.

[Ryan Reynolds @ryanrku]

@OlivierRoggevn @ZacksJerryRig Not sure why everyone thinks the sun heats the earth through the vacuum of space. Haven’t they ever seen a Stanley cup? Love mine.

[Ryan Reynolds @ryanrku]

@ZacksJerryRig Is your Stanley 2.7 degrees kelvin?

[Ryan Reynolds @ryanrku]

@ZacksJerryRig https://t.co/zcTAHk4cTs

[Ryan Reynolds @ryanrku]

@4gottnHistory https://t.co/wqhaidFViR

[Ryan Reynolds @ryanrku]

@softboywin https://t.co/UJduWK3cdb

[Ryan Reynolds @ryanrku]

https://t.co/pGA1AM2hBa

[Ryan Reynolds @ryanrku]

@WallStreetApes This is me 1 month ago. 😤

[Ryan Reynolds @ryanrku]

@BobbyHittJr

[Retro Anime @retro_anime]

This was animated in 1987 🤯

[MLB Network @MLBNetwork]

"They're gonna win the [AL] Central." - Harold

#MLBNHotStove has high expectations for the Royals following their impressive year-to-year jump last season.

[Tommi Pedruzzi @TommiPedruzzi]

The Alchemist is one of the most powerful books that exist.

But I bet 85% of you missed the most important lessons it holds.

I’ve collected 8 of them that will give you goosebumps.

You better pay attention: 🧵

[Ryan Reynolds @ryanrku]

@WallStreetApes https://t.co/451LTGDWui

[Ryan Reynolds @ryanrku]

@WallStreetApes https://t.co/R5z4vl0swP

[Ryan Reynolds @ryanrku]

@ChampagneSloshy Best part is he’s in the passenger seat.

[Ryan Reynolds @ryanrku]

@DrPhiltill @byte_thrasher The robots randomly flail in the dark until the task is complete

[Ryan Reynolds @ryanrku]

@BasedMikeLee https://t.co/p0gvZ8FSPI

[Ryan Reynolds @ryanrku]

Reflexes kicking in

[Ryan Reynolds @ryanrku]

@Garretwter Yes