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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.
M. N. Moore
Nuclear Science and Engineering | Volume 26 | Number 3 | November 1966 | Pages 354-361
Technical Paper | doi.org/10.13182/NSE66-A17356
Articles are hosted by Taylor and Francis Online.
The homogeneous Boltzmann equation for a moderator is specialized for isotropic scattering kernels and probed for wave solutions. There emerges a discrete set of wave numbers corresponding to the frequency ω as well as a continuum. The former constitutes a dispersion law having the same form as that based upon PN multigroup theory, but in general, the parameters are now given explicitly by inverse moments of v∑T averaged over distributions determined by the scattering kernel. The accuracy of these constants does not depend upon assumptions regarding the neutron energy spectrum. The waves near the limit of detectability have wave lengths and attenuation lengths of the order of the maximum mean free path. Such attenuation lengths approach the continuum boundary. The waves near the continuum boundary have phase velocities approaching that particle velocity which minimizes ∑T(v). At frequencies above the minimum collision frequency, no discrete waves definitely propagate, but when the frequency is low enough for a set of discrete waves to be generated, their attenuation is always smaller than that of the accompanying continuum so that an asymptotic region exists in which conventional neutron wave measurements can still be carried out. The criterion for the existence of discrete waves at low frequencies is the same as that for the existence of discrete relaxation lengths in an exponential experiment.
