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Questions tagged [fuels]

Use this tag when discussing chemicals for use in powering any variety of technology. Fuels may include anything from unleaded gasoline to radioactive elements, coal, oil, or even whale fat.

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5 votes
3 answers
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Using dead bodies for material 3: fuel

The world is suffering from the creatures of fantasy and nightmares which can appear with just a few minutes of warning anywhere, regardless of it being the middle of the street or on top of your bed ...
Demigan's user avatar
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95 votes
17 answers
17k views

Are there logical gaps in the periodic table in which you could insert a new mystery element for use as a fuel?

As in the title. We have the modern periodic table: In a potential near (or far) future setting humanity discovers a new element which serves as the basis for a cleaner, higher energy density fuel ...
James's user avatar
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22 votes
10 answers
4k views

Refueling from stars

My galaxy exploring ship is powered by a fusion reactor (back up with some solar panels but they spend a long time between stars). We know that stars are powered by fusion too, so they have all the ...
FreeElk's user avatar
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3 votes
4 answers
3k views

Manufacturing of fuel, post-apocalypse

I'm currently writing a post- zombie-apocalypse story, where Average Joe and his group have outlived the zombies, and wants to be a large settlement. They quickly agree to be industrial and ...
Magnumenforce's user avatar
2 votes
2 answers
378 views

What would be the ideal reaction mass for hall-effect engines?

The Setting In a bright future, after the brutally efficient totalitarian dystopia-state that once controlled solar systems fell to its own people, the world is still getting back on its feet. They ...
Sam Kitsune's user avatar
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0 votes
6 answers
1k views

Can a secondary fuel economy ever be hardened against attacks?

If a society fully centralized their energy supply to a secondary fuel (artificial energy source like Hydrogen or batteries), the public loses the ability to directly access energy from the earth. ...
Vogon Poet's user avatar
  • 8,169
8 votes
6 answers
619 views

How to explain lack of fosil fuels on an Earth-like exoplanet?

Planet - habitable, tidally locked planet orbitting red dwarf. Aim: a realistic answer (neither involving handwavium nor aliens that used it all) why a virgin planet that already experienced a while ...
Shadow1024's user avatar
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7 votes
4 answers
3k views

If Mars contains coal, will it become a dominant source of energy?

In the year 2099 A.D, humans made a major discovery. There is a rich source of fossil fuel buried beneath layers of Martian soil. It is estimated that the coal deposit that was discovered could fill ...
user6760's user avatar
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6 votes
3 answers
614 views

Spaceship fuel on Europa

What would make a good propulsion source for small engines and manouvering thrusters for spacecraft vehicles on Europa (moon of Jupiter), both for near-surface operations (vacuum) and in caves beneath ...
Innovine's user avatar
  • 6,084
6 votes
4 answers
864 views

Mobile Post-Apocalypse Shelter

So there was a nuclear apocalypse. It doesn't really matter why. Most people now, about a few decades or so later, are scavengers. They take pre-nukes things and use them for shelter and utilities. ...
AzaleaGarden's user avatar
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5 votes
10 answers
4k views

What energy sources would a species use if they didn't have access to fossil fuels?

I'm designing an alien race that hasn't developed electricity yet. Now, one thing about their species is that they haven't discovered fossil fuels on their planet to use, like coal, oil, etc. (The ...
ΓΙΑΝΝΗΣ ΜΙΧΑΗΛΙΔΗΣ's user avatar
5 votes
4 answers
5k views

How would technology differ, if fossil fuels never existed?

Although the fossil fuel coal had been used as a fuel since 1,000 B.C., it wasn't until the arrival of the Industrial Revolution from the mid-1700s through the 1800s that coal began to replace biomass ...
Cthulhu's user avatar
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3 votes
9 answers
1k views

What would be the most practical raw fuel for a hydrogen economy?

In a near-future world we have stopped directly fueling private, public, and mass transit and we have migrated to a hydrogen economy as the standard energy carrier. Consider the following factors: ...
Vogon Poet's user avatar
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