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September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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From operator to entrepreneur: David Garcia applies outage management lessons
David Garcia
If ComEd’s Zion plant in northern Illinois hadn’t closed in 1998, David Garcia might still be there, where he got his start in nuclear power as an operator at age 24.
But in his ninth year working there, Zion closed, and Garcia moved on to a series of new roles—including at Wisconsin’s Point Beach plant, the corporate offices of Minnesota’s Xcel Energy, and on the supplier side at PaR Nuclear—into an on-the-job education that he augmented with degrees in business and divinity that he sought later in life.
Garcia started his own company—Waymaker Resource Group—in 2014. Recently, Waymaker has been supporting Holtec’s restart project at the Palisades plant with staffing and analysis. Palisades sits almost exactly due east of the fully decommissioned Zion site on the other side of Lake Michigan and is poised to operate again after what amounts to an extended outage of more than three years. Holtec also plans to build more reactors at the same site.
For Garcia, the takeaway is clear: “This industry is not going away. Nuclear power and the adjacent industries that support nuclear power—and clean energy, period—are going to be needed for decades upon decades.”
In July, Garcia talked with Nuclear News staff writer Susan Gallier about his career and what he has learned about running successful outages and other projects.
Benjamin M. Ma
Nuclear Science and Engineering | Volume 26 | Number 1 | September 1966 | Pages 99-109
Technical Paper | doi.org/10.13182/NSE66-A17192
Articles are hosted by Taylor and Francis Online.
The strain rates, strains, and stresses resulting from irradiation growth and swelling in long cylindrical solid fuel elements in unsteady-state conditions are determined analytically. From the simple diffusion equation for nonequilibrium reactor system, an exact solution for neutron flux distribution is expressed by products of Bess el function with exponential time function. From the heat conduction equation with an internal heat source in unsteady state, a solution for temperature distribution in the fuel elements is obtained. A physico-mechanical analysis for the fuel elements is carried out with some basic assumptions concerning the properties, fabrication, end and yield conditions of the fuel, and cladding materials., The figures show the combined effects of radiation growth, swelling, and time on the components of the strain rate, strain, and stress produced in the fuel elements during reactor operation. The results are based on the derived equations and the calculated results of a numerical example.
