Zie Hyun Kim

Title: Zie Hyun Kim and Shipboard Refrigerant Charging Innovation.

Introduction

Zie Hyun Kim is an inventor based in Yongin-si, South Korea, and works at Hanwha Ocean Co., Ltd. His patent work addresses refrigerant charging for a ship’s reliquefaction system, which processes boil-off gas from a liquefied gas storage tank.

Latest Patents

Kim is associated with 1 patent: “Refrigerant Charging System for Reliquefaction System for Ship.” The invention describes a system that reliquefies boil-off gas by compressing it and exchanging heat with refrigerant circulating through a heat exchanger.

The system includes a buffer tank that stores utility nitrogen, a booster compressor that can compress and supply the nitrogen to the refrigerant circulation line, and a first load-up line that supplies nitrogen directly from the buffer tank without passing through the compressor. During initial charging, when the reliquefaction system is not operating, a pressure difference between the buffer tank and the refrigerant circulation line enables nitrogen to charge the line. This arrangement provides an initial charging method for the shipboard system.

Career Highlights

Kim’s listed patent reflects work on equipment for liquefied-gas vessels and the operation of reliquefaction systems. His affiliation with Hanwha Ocean connects his work to shipbuilding and marine engineering.

Collaborations

The provided information lists Won Jae Choi and Hyun Jun Shin as Kim’s coworkers. Their specific contributions to the patent are not stated in the available details.

Conclusion

Zie Hyun Kim’s patent focuses on a practical way to charge a ship’s refrigerant circulation line during system startup, using stored nitrogen and pressure differential to support reliquefaction operations.