Power-to-Volume Scaling: A World Standard set by Camp NRTS

by Dan Hughes

As is the case of a large number of other matters, designing and developing scaled experiments of complex engineered equipment for inherently complex, transient fluid flow, heat transfer, hydrodynamics, and thermodynamics has been somewhat contentious. My experience has been that there are no aspects whatsoever of transient, compressible, boiling and flashing two-phase flows that are not contentious. Spirited discussions about every aspect continue to this day.

I’m going to try to present a very short description of the focus on scaling that was underway at Camp NRTS in the 1970s. I think my brief review into the literature shows how important the Camp NRTS work has been in experimental investigations of reactor safety all round the world. No math will be involved.

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RELAPSE-1 Theory and User Manual

by Ken Moore and Dan Hughes

A previous post introduced the RELAPSE-1 computer program. At that time we indicated that getting the report uploaded was on our To Do lists.

Update June 27, 2017: The missing last pages are here.

Update June 22, 2017: The last two pages are missing, one of which has the References: the RELAP2 manual can be used to see these. We’re working on getting the missing pages posted.]

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Pete Davis: Camp NRTS and Beyond

by Pete Davis
I arrived at camp NRTS in July of 1961 as a freshly minted employee of the Atomic Energy Commission, having accepted a position with them upon graduation from the University of Wyoming with a degree in physics. I accepted their offer primarily because they would pay me full salary and send me to graduate school at their expense. My arrival in Idaho Falls was not auspicious; I got a ride to Jackson with a friend and then took a bus to Idaho Falls. I did not have a car, did not know anyone, had no place to stay and was nearly destitute. I found a spartan apartment (E-street Apartments) which was within walking distance to my place of employment (which I found on a map in the phone book), the AEC Idaho Operations Office on 2nd St. I spent the summer in IF, getting indoctrinated into the workings of the AEC and the site. In September I started graduate school in Oak Ridge, Tennessee (Oak Ridge School of Reactor Technology) and graduated the following June. I returned then to Idaho Falls and was assigned to the Reactor Safety Branch at the Operations Office. This branch was responsible for monitoring all the reeactor safety related work at INEL, including PBF, SPERT, LOFT, Semiscale, SNAPTRAN and the associated analytical efforts.

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