Recent content by Uranium

  1. U

    How the energy generated by nuclear fussion is extracted?

    Well, that's what happens when people (me) ramble about things they don't know. Good to learn some things...and at least only half of what I say is "meaningless" or "misleading." I'll take the hint (or rather large indication, case), and I do appreciate the corrections. It's always good to...
  2. U

    Exploring Nuclear Engineering from a BSME Perspective

    I guess I don't really know what sort of answer you want. You will still have the freedom to do whatever, but sure you will be pushed to areas more applicable to ME...like thermal hydraulics. What do you mean "what type" of work in each area?
  3. U

    How the energy generated by nuclear fussion is extracted?

    My point was that neither solar or fusion work on the scale necessary. Fusion, correctly, doesn't work at all, though it is a materials/technology issue holding it back. Solar is taxing both in terms of finances and resources. Additionally, the technology issue holding solar back is storage...
  4. U

    How the energy generated by nuclear fussion is extracted?

    SABR uses a tokamak, but those "viability" timelines are likely for a sustained fusion reaction in a tokamak...I would guess. The technology is already there for SABR. ICF? A year or two away? Where? I don't know too much about ICF, my plasma prof (Stacey) pretty much shuns it and teaches...
  5. U

    Exploring Nuclear Engineering from a BSME Perspective

    Haha. If you want to do lasers, a Ph.D. in physics would likely be best...not really a nuclear engineering thing.
  6. U

    How the energy generated by nuclear fussion is extracted?

    Everyone is so skeptical of fusion...just because it doesn't work now doesn't mean it won't...we just have to find the right materials. Solar doesn't work on a commercial scale either but everyone loves that...pfff. The best fusion tech is the SABR...using an unsustainable fusion source to get...
  7. U

    Exploring Nuclear Engineering from a BSME Perspective

    Hello Stang, I don't think having an ME degree will limit you field of study significantly, though you might find (as I think I have) that the best degrees for nuclear grad seem to be physics and/or math, this is especially true for plasma physics and computational radiation transport. I...
  8. U

    Geometry of Fast Reactor: Calculating Critical Dimensions & Masses

    The buckling should change at least a little since you can accept greater leakage for criticality. The shape would still be a cosine, just one with greater curvature, right? Or perhaps it would be more like a hump...not cosine.
  9. U

    Nuclear Engineering graduate school advice?

    I definitely agree with Astronuc that writing off a program without a reactor is a bad idea. I can only give advice from two programs personally, though I recently went through the grad app process and know a bit about some other programs. I recently graduated from GT with a BS. Decided...
  10. U

    Building a Betavoltaic battery

    Haha. Assuming minerva is right...that's awesome.
  11. U

    Geometry of Fast Reactor: Calculating Critical Dimensions & Masses

    Kind of what I was thinking. I think the point source only comes into play in solving the condition considering a uniformly distribution source (from the 235) and the point source at the center.
  12. U

    Geometry of Fast Reactor: Calculating Critical Dimensions & Masses

    I was indicating that my solution doesn't involve the given So...so I'm not sure how correct it would be. I'm pretty sure my previous solution is correct. That's how it's usually done in practice problems like that. I guess you could solve a 1-D diffusion equation to get a flux profile...
  13. U

    Geometry of Fast Reactor: Calculating Critical Dimensions & Masses

    Classic problem. You just need to set the material buckling to the geometrical buckling for an homogeneous reactor. I would assume it's all 235. By setting these equal, just solve for the length of the cube's side...then you can get volume and mass. Though this doesn't handle the point source.
  14. U

    What exactly is an adjoint flux?

    I've been reading a bit about hybrid methods, and I keep coming across adjoint fluxes. What exactly is an adjoint flux? And how does it factor into calculations? Thanks, Uranium
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