The 121 Mining Investment event held in Las Vegas on March 30 and 31 included a panel discussion with leaders from three uranium mining companies, each of … [Read More...] about Nuclear energy growth prospects and secure uranium supplies
Atomic Show #297 – Krusty – The Kilopower reactor that worked
Patrick McClure and David Poston successfully developed, obtained funding, constructed and operated a new atomic fission power source that produced useful quantities of electricity during the period from 2014-2018. That puts them into a rarified, perhaps unique position. Few US-based technologists have been through that process in the past 40 years.
Aside: Without some way to frame the statement so it excludes the US Navy it isn’t accurate to say no one else has accomplished this feat. End Aside
Patrick and David – and their supporting team – developed and operated the Kilopower reactor, also known as KRUSTY. That name comes from a creatively framed acronym – Kilopower Reactor Using Stirling TechnologY.
The proposed application for the system is to produce power for space missions that cannot be accomplished using either solar collectors or radioisotope thermal generators. The former imposes operational constraints with both intermittency factors and increasing distance from the sun. The later uses rare isotopes with limited heat production that constrain individual power devices to a thermal output of approximately 300 W when the device is new.
In brief, Krusty was a tiny reactor that was operated at a power level of 5 kWth to produce the equivalent of 1 kWe using Stirling Engines qualified for space travel. Heat pipes arranged around a solid UMO alloy annular core transferred heat from the reactor to the hot end of the Stirling engines. The cold side of the engines were designed to radiate heat into the vacuum of space. Reactor reactivity was adjusted using a movable beryllium reflector on the outside of the core. A boron carbide rod in the center of the annular core provided a second means of controlling the reactor. The core was 10 inches tall and had an outside diameter of 4 inches. The center annulus for 2 inches in diameter.
Aside: Past tense is the accurate way to describe Krusty. The system, including the core used, no longer exists. End Aside.
The program cost $18 M and took 3.5 years from initiation to final testing. It was funded partly by NASA and partly by NNSA.
We will be publishing a more detailed description of the technology and the development process in the near future, but for now, please listen to the show. If the audio program stimulates questions or comments, please join in a conversation here.
If you are intensely curious and cannot wait for our coming post, you can learn more about Krusty by visiting Space Nukes Technical Papers.
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Nuclear energy growth prospects and secure uranium supplies
The 121 Mining Investment event held in Las Vegas on March 30 and 31 included a panel discussion with leaders from three uranium mining companies, each of which has an asset base of potentially lucrative mining prospects mostly located in North America. The fourth member of the panel was a managing partner at Nucleation Capital, a venture capital fund focusing on opportunities in the advanced nuclear sector, including suppliers of key system components front end to back end.
The panel included a lively chat about the prospects for new nuclear power plants, life extensions for existing power plants – including some that had previously announced closures, the implications of HALEU requirements for advanced reactors and the potential for micro and small reactors to supply power to mining operations that are often located in remote, off-grid locations.
The panel included following participants:
Rod Adams, Managing Partner, Nucleation Capital; Jon Bey, CEO, Standard Uranium; Ross McElroy, CEO, Fission Uranium; Andrew Ferrier, Managing Director, Okapi Resources
Background: The 121 Group hosts a series of events designed to help growing companies, especially those focusing on raw material supply, meet with investors that are interested in the growth potential for those companies and the sectors they serve. Those conferences are called 121 Mining Investment events.
Aside: 121 is pronounced 1 to 1, not one twenty one. A key feature of the events is the opportunity for companies to schedule face to face meetings with interested investors. The booth set-up for the event in Las Vegas was different from any that I have seen before. The three walls of each booth were inflatables with a continuously running blower. They reminded me of the system used for bounce houses at birthday parties for kids. Sound isolation was impressively effective. End Aside.
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