Company Filing History:
Years Active: 1990-1991
Title: Innovations by Thomas E. Dunn: Pioneering Pressure Pulse Cleaning Methods
Introduction
Thomas E. Dunn, an innovative inventor based in Pittsburgh, PA, has made significant contributions to the field of heat exchanger technology. With two patents to his name, Dunn's work is specifically focused on enhancing the efficiency of cleaning methods employed in nuclear steam generators.
Latest Patents
One of Dunn's notable patents is the "Pressure Pulse Cleaning Method." This innovative approach addresses the challenge of removing sludge and debris from the vessel of a heat exchanger, particularly within the secondary side of a nuclear steam generator. The method involves introducing a sufficient volume of liquid, such as water, into the steam generator to ensure that the lower portion, including the tubesheet, is completely submerged. It then utilizes a succession of pressure pulses generated by specialized pulse generators, creating shock waves that exert momentary forces capable of loosening the sludge and debris. Importantly, these pressures are controlled to remain safely below the yield and fatigue limits of the heat exchanger's tubes and components, ensuring the integrity of the system throughout the cleaning process.
Career Highlights
Dunn is affiliated with Westinghouse Electric Corporation, where he applies his expertise in thermal systems and engineering. His role at this prestigious company underscores his commitment to advancing nuclear technology through innovative solutions to common industry challenges.
Collaborations
Throughout his career, Dunn has worked alongside talented professionals in the field, including Richard D. Franklin and Gregg D. Auld. These collaborations reflect a team-oriented approach to innovation and problem-solving, further enhancing the impact of their collective work in the field of heat exchanger maintenance and efficiency.
Conclusion
Thomas E. Dunn stands as a testament to the power of innovation in the engineering sector. His patented pressure pulse cleaning method demonstrates not only technical ingenuity but also a dedication to safety and efficiency in nuclear energy applications. As technologies evolve, Dunn's contributions will likely continue to influence the field, paving the way for new advancements in heat exchanger maintenance.