Re: Organo-gel rocket fuel

On Dec 2, 5:20 pm, Frogwatch <ohara...@xxxxxxxxxxxxxx> wrote:
On Dec 2, 4:45 pm, "Keith Willshaw"



<keithnos...@xxxxxxxxxxxxxxxxxxxxx> wrote:
"Dean" <damark...@xxxxxxxxx> wrote in message

news:549bb1df-124c-4204-983c-7fe9213aad8a@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Dec 2, 10:13 am, Frogwatch <ohara...@xxxxxxxxxxxxxx> wrote:

Organo-gels are like hydrogels being a cross linked network of a
polymer immersed in a solvent or other liquid.
So.............why not a hybrid rocket engine consisting of a gelled
fuel (polymer) whose pores are filled with an oxidizer liquid such as
nitrous oxide. The gel would be used like in a solid fuel engine but
the engine would operate similar to a hybrid engine except unlike a
hybrid it could nto be shut down because you cannot shut off the
oxidizer. However, it would get better burning rates because the
oxidizer is pre-mixed with the fuel.
Congratulations, you have reinvented the Space Shuttle SRBs.

He's good at reinventing stuff :)

Keith

Hybrids do need better burning rates. In fact, NASA did a study in
which they found that using parraffin as fuel with LOX as oxidizer
gave better rate because the melting paraffin boiled off at the
surface producing tiny bubbles that had more surface area exposed to
the oxidizer.
My original idea was to fill the paraffin with a material like
Kerosene in tiny bubbles so that it would evaporate as soon as the
flame front got near it causing the surface to explode outward as a
liquid.  I even managed to produce the paraffin with tiny bubbles it
it.  When I sliced the hardened paraffin you could see the bubbles
under a microscope and the kerosene would ooze out.
Perhaps the right way to approach this would be to use an organic gel
as fuel with oxidizer fed normally.  The organic solvent would do what
I wanted the bubbles to do.  That would preserve the advantages of the
hybrid engine.

"ooze"?

anyway you need to record your sources

http://www.sciencedaily.com/releases/2003/01/030115070306.htm
.

Relevant Pages

  • Re: Paraffin/liquid mixture
    ... >>are liquid but the bubbles must remain liquid when the paraffin ... Specifically, hybrid rocket fuel. ... the burn progresses into the wax, the liquid hydrocarbon bubbles will ...
    (sci.chem)
  • Re: Organo-gel rocket fuel
    ... fuel whose pores are filled with an oxidizer liquid such as ... My original idea was to fill the paraffin with a material like ... Kerosene in tiny bubbles so that it would evaporate as soon as the ...
    (sci.military.naval)
  • Re: Organo-gel rocket fuel
    ... polymer immersed in a solvent or other liquid. ... fuel whose pores are filled with an oxidizer liquid such as ... hybrid it could nto be shut down because you cannot shut off the ...
    (sci.military.naval)
  • Re: Organo-gel rocket fuel
    ... polymer immersed in a solvent or other liquid. ... fuel whose pores are filled with an oxidizer liquid such as ...
    (sci.military.naval)
  • Re: Paraffin/liquid mixture
    ... Does the liquid have to be hydrocarbon? ... Specifically, hybrid rocket fuel. ... > oxidizer to pass and burn the solid fuel. ... > burn only takes place on the fuel surface. ...
    (sci.chem)