Ahdee Quan Chan

Title: Innovations by Ahdee Quan Chan in Nuclear Reactor Technology

Introduction

Ahdee Quan Chan is a notable inventor based in Morgan Hill, California, with a focus on advancements in nuclear reactor technology. He holds five patents that showcase his innovative contributions to the field. His work primarily revolves around improving the efficiency and safety of nuclear reactors.

Latest Patents

One of his latest patents is for slip joint clamps and methods for use in a nuclear reactor jet pump. These clamps are designed to seat on a diffuser end via external features, such as guide ears, regardless of any wear or damage to the slip joint. The clamps can be opened and closed to surround an inlet mixer, forming a slip joint with the diffuser without the need for disassembly. This innovation allows for lateral movement of the inlet mixer, achieving a desired preload force in the connection. The clamp arms include rotatable halves that create a complete fill between the inner surface of the diffuser and the outer surface of the inlet mixer. Additionally, a lateral drive mechanism pushes the inlet mixer against the clamp, enhancing the overall functionality.

Another significant patent involves a renew process implementation for the reactor bottom head. This process utilizes surface conditioning scheduling to mitigate the risk of crack initiation or growth in boiling water nuclear reactors. It involves defining multiple working zones in both the annulus and core regions of the reactor vessel. Working crews are strategically positioned to perform surface conditioning in accessible areas, ensuring that the process can be completed efficiently within thirty days.

Career Highlights

Throughout his career, Ahdee has worked with prominent companies in the nuclear energy sector, including General Electric Company and GE-Hitachi Nuclear Energy Americas LLC. His experience in these organizations has contributed to his expertise and innovative capabilities in reactor technology.

Collaborations

Ahdee has collaborated with notable professionals in the field, including Randal Raymond Stark and Sampath Ranganath. These collaborations have further enriched his work and led to significant advancements in nuclear reactor technology.

Conclusion

Ahdee Quan Chan's contributions to nuclear reactor technology through his patents and collaborations highlight his role as an influential inventor in the industry. His innovative solutions continue to enhance the safety and efficiency of nuclear reactors, making a lasting impact on the field.