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PuFF
Topic Started: Apr 2 2018, 03:03 PM (81 Views)
George K
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Finally
https://www.nextbigfuture.com/2018/04/pulsed-fission-fusion-puff-propulsion-concept-gets-phase-2-niac-funding.html

Quote:
 
The pulsed fission fusion propulsion (PuFF) system envisions using a pulsed z-pinch to compress a fission-fusion target. The resulting deflagration expands against a magnetic nozzle to produce thrust and generate recharge energy for the next pulse. A z-Pinch is a device that is commonly used to compress laboratory plasmas to high pressures (~1 Mbar) for very short timescales (~100 ns). An electrical discharge produces a high axial current along the outer surface of a column of plasma; this current in turn generates a very strong toroidal magnetic field. This self-generated magnetic field interacts with the axial current via the Lorentz force and radially compresses the plasma column, bringing it to very high densities and temperatures. This team is exploring a modified Z-pinch geometry as a propulsion system by encasing the fission- fusion target in a sheath of liquid lithium, providing a current return path. Numerical results have been promising, the level of compression is sufficient to reach fission criticality. The fission energy boosts the fusion reaction rate, generating more neutrons which boost the fission process. This concept will potentially reach specific impulses of 30,000 sec with thrust levels sufficient to travel to Mars in a month and to interstellar space in a few decades.
A guide to GKSR: Click

"Now look here, you Baltic gas passer... "
- Mik, 6/14/08


Nothing is as effective as homeopathy.

I'd rather listen to an hour of Abba than an hour of The Beatles.
- Klaus, 4/29/18
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Luke's Dad
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Emperor Pengin
Here comes the juice.
The problem with having an open mind is that people keep trying to put things in it.
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George K
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Finally
Luke's Dad
Apr 2 2018, 03:18 PM
Here comes the juice.
That was the first thing I thought as well. :lol2:

I wonder what kind of acceleration such an engine would be able to sustain, 0.5G? 1G?

As you know 1G acceleration can get you from Earth to Mars in a matter of a few weeks.
A guide to GKSR: Click

"Now look here, you Baltic gas passer... "
- Mik, 6/14/08


Nothing is as effective as homeopathy.

I'd rather listen to an hour of Abba than an hour of The Beatles.
- Klaus, 4/29/18
Online Profile Quote Post Goto Top
 
George K
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Finally
https://www.nextbigfuture.com/2018/04/mach-effect-propellantless-drive-gets-niac-phase-2-and-progress-to-great-interstellar-propulsion.html
A guide to GKSR: Click

"Now look here, you Baltic gas passer... "
- Mik, 6/14/08


Nothing is as effective as homeopathy.

I'd rather listen to an hour of Abba than an hour of The Beatles.
- Klaus, 4/29/18
Online Profile Quote Post Goto Top
 
Copper
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Shortstop

Make a big one and bring Mars here.
The Confederate soldier was peculiar in that he was ever ready to fight, but never ready to submit to the routine duty and discipline of the camp or the march. The soldiers were determined to be soldiers after their own notions, and do their duty, for the love of it, as they thought best. Carlton McCarthy
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George K
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Finally
Copper
Apr 2 2018, 04:11 PM
Make a big one and bring Mars here.
Just what we need. More illegal immigrants. :lol2:
A guide to GKSR: Click

"Now look here, you Baltic gas passer... "
- Mik, 6/14/08


Nothing is as effective as homeopathy.

I'd rather listen to an hour of Abba than an hour of The Beatles.
- Klaus, 4/29/18
Online Profile Quote Post Goto Top
 
Luke's Dad
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Emperor Pengin
Build the Dyson Sphere!

And the Klingons will pay for it!
The problem with having an open mind is that people keep trying to put things in it.
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Luke's Dad
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Emperor Pengin
Fiction has given us names for propulsion units like "Epstein Drives", "Warp Drives", "Ion Drives" and more. If Humanity's great interstellar engine winds up being called the PuFF Drive... Well somebody blow us up with a Death Star now and end our idiocy.
The problem with having an open mind is that people keep trying to put things in it.
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Jolly
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Geaux Tigers!
George K
Apr 2 2018, 04:15 PM
Copper
Apr 2 2018, 04:11 PM
Make a big one and bring Mars here.
Just what we need. More illegal immigrants. :lol2:
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Got a problem with that, Earthling?
The main obstacle to a stable and just world order is the United States.- George Soros
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