Dominion Engineering, Inc.

Marc A Kreider

Robert Douglas Varrin, Jr

Jean E Collin

Joshua M Luszcz

David Arguelles

Ryan Jones

Aaron Pellman

Sotaro Kaneda

David J Gross

Christopher R Casarez

Glenn A White

Velvet D Moroney

Jr Robert D Varrin

Jr Varrin Robert D

A method of cleaning a vessel having deposits on an interior surface includes removably bonding an ultrasonic transducer to an external wall of the vessel and using the ultrasonic transducer to produce ultrasonic energy coupled into the vessel wall such that at least a portion of the ultrasonic energy is transmitted to the interior surface.

Ultrasonically cleaning vessels and pipes

A method is provided for evaluating simultaneously the effects of multiple, interdependent heat-exchanger degradation modes for a heat exchanger of a power plant in the context of a series of alternative heat-exchanger remediation strategies. The method includes calculating time-varying predicted future progressions of heat exchanger performance metrics for a plurality of alternative heat-exchanger remediation strategies, and calculating time-varying predicted future progressions of financial metrics describing the accumulated financial benefit of each of the strategies. The calculations may be provided in probabilistic terms. A strategy may then be chosen based, at least in part, on the calculated results.

Method and apparatus for evaluating repair and remediation alternatives for heat exchangers

Provided area cleaning apparatus and an associated method of using the disclosed apparatus wherein the apparatus utilizes one or more nozzles configured to provide a coherent stream of one or more cleaning fluids for removing accumulated fine particulate matter, sludge, from surfaces. The nozzles may be sized, arranged and configured to provide coherent streams that maintain the initial stream diameter for a substantial portion of the maximum dimension of the space being cleaned. The apparatus and method are expected to be particularly useful in the cleaning of heat exchangers incorporating a plurality of substantially vertical and narrowly spaced tubes by directing cleansing streams along a plurality of intertube spaces.

Low-pressure sludge removal method and apparatus using coherent jet nozzles

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Herndon, VA, United States of America

Marc A Kreider