# Tag Info

43

As is usual with rocket fuels, the problems of ozone are practicality not performance Almost every answer for why a specific rocket fuel component is used or not will end up referring to John D Clarke's magnificent and sparklingly written book: Ignition: An informal history of liquid rocket propellants (a rare technical book worth reading for the brilliant ...

18

The answer is NO. The article you quote makes a completely unwarranted generalisation that "all flames are hollow". This is true of some flames but only because the fuel that is burning is only able to burn when mixed with oxygen from the air. In those flames, the flame is "hollow" because only in regions where air can mix with the fuel ...

15

Liquid ozone is rather stable (as in "can be stored") as an up to 70% solution in LOx, if you add some stabilisers. That would give quite a bit of additional boost in a rocket, but it's surely going to explode already in the rocket's fuel pumps and tubing, instead of burning in the engine's nozzle. Rocket engines are tricky enough to build, you don'...

8

Vegetable oils are mainly made of glycerol esters of oleic acid, linoleic acid and palmitic acid. For example, the fatty acids extracted from olive oil are a mixture of $74$% oleic acid, $11$% palmitic acid, and $10$% linoleum acid, plus 5% other acids. These proportions are average values that may change from one sample to the next one. The mass proportion ...

5

If you want energy as heat, the best way to generate energy is combustion. If you want energy as electricity, the best way is a fuel cell (which also produce some heat). If you want mechanical work, using hydrogen like gas or oil in a usual combustion engine, the yield would be a maximum of $30$%. The best yield would be to produce electricity in a fuel cell,...

2

It probably isn't practical to do Fischer-Tropsch on a small scale Gasification of biomass is easy. And produces syngas, a mixture of carbon dioxide, carbon monoxide, hydrogen and other compounds. But the Fischer-Tropsch process to convert that mixture into useful liquids (like diesel) is not easy. The process requires carefully designed reactors, controlled ...

2

A combustion is a chemical reaction of something with oxygen, producing much heat. If it also produces light, it is a flame. Ignition is the operation required for starting a combustion. Using a match may do the job. Fuel is usually a mixture of hydrocarbons derived from oil or petroleum. But combustion of Magnesium is also a combustion, although magnesium ...

1

Petrol/gas already is a blend of multiple different hydrocarbons when harvested from soil. After processing (e.g., washing/drying, passing the cracker to split larger molecules into smaller ones, passing the reformer to interconvert some of the molecules into other isomers, and large scale distillations to separate lighter fractions of hydrocarbons (e.g., ...

1

It is safer to keep the process as simple as possible without the addition of perchlorates or peroxides to the oil. Perchlorates are salts with low solubility in oil; hydrogen peroxide equally is a polar compound with little affinity to form a solution with oil. Thus, the salts could clog the fuel delivery, or in case of $\ce{H2O2}$ simply yield a biphasic ...

1

First of all, when it comes to something that may impact your future well-being in a bad way, do a thorough research on the topic. Wikipedia is a good starting point as it highlights the role of homogenization in the fuel–oxidizer mix preparation: There are many different methods for preparation of a sugar-based rocket propellant. Dry compression does not ...

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