Questions tagged [energy]

Questions addressing the energy requirement for space/orbit/interplanetary missions.

All missions are limited by the amount of energy available to the vehicle, and mission instruments. This is particularly acute in spacecraft because of the large amount of energy needed to make it to the edge of Earth's atmosphere.

Sources of energy may be

  • Chemical E.g. Battery
  • Nuclear E.g. RTGS
  • Solar E.g. Photovoltaics

When a question or it's description addresses or attempts to address acquiring/fulfilling the energy requirements of

  • Mission propulsion
  • Mission instruments

it may be suitable for this tag

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What is the status of concentrated solar energy (CSE) in space exploration?

The Cassini Environmental Impact Statement, Chapter 2 (page 53–54) describes the status of Concentrated Solar Energy in space: A 1981 conceptual study of the system impacts of using a concentrated solar array (CSA) on the Galileo spacecraft,…
gerrit
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Would a flywheel energy storage have a distinct advantage or disadvantage in zero or low gravity?

The Centrifugal Battery (flywheel as an energy storage device) has been around [a while]since at least 1857. This comment and geoffc's answer (batteries and Bearings) got me wondering what would the advantages and disadvantages of what in theory…
James Jenkins
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Titan crude oil equivalent in Gbbl?

Despite the cost, what is the crude oil that is hydrocarbons energy equivalent which Titan could provide as referred to crude oil Gbbl compared to Earth? (Joules as common denominator) Here is what is left on our planet. Consumption rate is ~ 36.5…
J. Doe
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Would it be possible to generate electricty in space with a satellite in orbit

So just had an idea that could work but would require billions to build: Theoretically we could build a giant highway for satellites to orbit on but as they are orbiting they generate energy as they are on a treadmill which generates energy from the…
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Never reducing propellant for deep space propulsion

in this sketch suppose the velocity of ball is 0 and it is out from the system and stayed in 0 velocity due to two electromagnets and these two magnets are attached with two springs and both springs are in stretched position towards up and down side…
vikram
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