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NC State celebrates 70 years of nuclear engineering education
An early picture of the research reactor building on the North Carolina State University campus. The Department of Nuclear Engineering is celebrating the 70th anniversary of its nuclear engineering curriculum in 2020–2021. Photo: North Carolina State University
The Department of Nuclear Engineering at North Carolina State University has spent the 2020–2021 academic year celebrating the 70th anniversary of its becoming the first U.S. university to establish a nuclear engineering curriculum. It started in 1950, when Clifford Beck, then of Oak Ridge, Tenn., obtained support from NC State’s dean of engineering, Harold Lampe, to build the nation’s first university nuclear reactor and, in conjunction, establish an educational curriculum dedicated to nuclear engineering.
The department, host to the 2021 ANS Virtual Student Conference, scheduled for April 8–10, now features 23 tenure/tenure-track faculty and three research faculty members. “What a journey for the first nuclear engineering curriculum in the nation,” said Kostadin Ivanov, professor and department head.
Raymond S. Troy, Robert V. Tompson, Tushar K. Ghosh, Sudarshan K. Loyalka
Nuclear Technology | Volume 178 | Number 3 | June 2012 | Pages 241-257
Technical Paper | Fission Reactors | dx.doi.org/10.13182/NT11-48
Articles are hosted by Taylor and Francis Online.
Graphite particle generation by interpebble abrasion and by abrasion of pebbles with the containment vessel during operation of a pebble bed reactor is an issue of interest in the safety analysis of this class of very high temperature reactor. To understand particle generation, we have constructed an apparatus to generate graphite particles from preformed graphite hemispheres under rotational/spinning abrasive loading. We have initially used commercial-grade graphites in our experiments and have generated size distributions for the abraded particles, determined particle shapes, and measured the particle surface areas, pore volumes, and pore volume distributions of particles produced during abrasion of graphite surfaces under different conditions. The size distributions were studied using an Aerodynamic Particle Sizer™ and a Scanning Mobility Particle Sizer.™ Most of the particles observed were in the range from 18.1 to 600 nm in diameter. The scanning electron micrographs showed that the particles tend to be irregular in shape and porous in nature. We have also conducted Brunauer-Emmett-Teller surface area and pore volume measurements that have verified the highly porous nature of the particles. The calculated surface area and open porosity for our initial measurements of the particles from this particular grade of commercial graphite were found to be 626 m2 g-1 and 68%, respectively. In addition, the average surface roughness of fresh samples was 0.966 Ra m at the point of contact.