How do space shuttles generate electricity?

In summary, NASA shuttles use electrolysis in fuel cells to generate power. They bring up hydrogen and oxygen to run through the fuel cells, producing water as a byproduct. However, the shuttle does not recycle bodily fluids for drinking, while the space station does. This is because the shuttle has shorter missions and relies mostly on fuel cells for power, while the space station has longer missions and relies on solar panels. Recycling technology is being developed for longer term space exploration.
  • #1
nuby
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From what I understand NASA shuttles use electrolysis in fuel cells (their fuel cell power plants) . But how does it work? Do they bring up liquid oxygen and hydrogen, or is it something else with water? What is the byproduct?
 
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  • #3
and if water is the by-product, why do they still need recycle bodily fluids to drink?
 
  • #4
The shuttle doesn't however the space station does recycle urine and humidity from the air.
The shuttle has relatively short missions and gets most of it's power form fuel cells, the ISS has more man-days to supply and gets most of it's power from solar panels.
In addition developing and testing recycling is part of the research program for longer term space exploration
 

1. How do space shuttles generate electricity?

Space shuttles generate electricity through a combination of solar panels and onboard fuel cells. The solar panels collect energy from the sun and convert it into electrical energy, while the fuel cells use a chemical reaction to produce electricity.

2. How do solar panels work in space shuttles?

Solar panels work by using photovoltaic (PV) cells to convert sunlight into electricity. These cells are made of silicon, which absorbs photons from the sun and knocks electrons loose, generating a flow of electricity. The solar panels on space shuttles are highly advanced and designed specifically for use in space.

3. What is the purpose of fuel cells in space shuttles?

Fuel cells are used in space shuttles to provide backup power and to supplement the electricity generated by solar panels. They use a chemical reaction between hydrogen and oxygen to produce electricity, with water and heat as byproducts. This allows space shuttles to have a continuous source of electricity even when not in direct sunlight.

4. How much electricity can a space shuttle generate?

The amount of electricity generated by a space shuttle varies depending on the size and efficiency of its solar panels and fuel cells. On average, a space shuttle can generate around 120 kilowatts of electricity, which is enough to power about 120 homes on Earth.

5. Can space shuttles store electricity for later use?

Yes, space shuttles have batteries that can store excess electricity generated by the solar panels and fuel cells. These batteries are used during periods when the shuttle is not in direct sunlight or when additional power is needed. However, space shuttles must also carefully manage their energy usage to ensure they have enough power for the entire mission.

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