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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.
Gary J. Dau and Monte V. Davis
Nuclear Science and Engineering | Volume 25 | Number 3 | July 1966 | Pages 223-226
Technical Paper | doi.org/10.13182/NSE66-A17828
Articles are hosted by Taylor and Francis Online.
Theoretical development for the gamma-induced production of conduction band electrons in alumina is presented. Consideration of charge carrier mobility limited investigations to crystals having ionic bonding. Because of the difficulty in evaluating theoretical constants, all were combined and considered to be independent of temperature and radiation. This constant was evaluated experimentally. A model with a single trap depth was developed for predicting conductivity of ionic insulators as a function of temperature and radiation dose rate. The model is , where the first term on the right represents ionic conductivity of material external to a radiation field and the second term describes radiation-induced conductivity. Term P represents gamma dose rate in roentgen per hour, G is an experimentally determined constant, and W represents the energy necessary to raise trapped electrons into the conduction band. The temperature dependence of the mobility is represented by (T)3/2. Evaluation of experimental data for alumina gave W = 0.086 ± 0.014 eV and G = 7.4 × lO−21 (Ω−1cm−1K3/2R−1h).
