Min Chang

Title: Min Chang: Heat Pump System Innovations

Introduction

Min Chang is an inventor based in Suwon, South Korea, whose patent work focuses on heat pump systems and their control. His inventions address refrigerant management, heat exchange, and system monitoring. Chang is associated with Samsung Electronics Ltd. and has 2 patents.

Latest Patents

Chang’s recent patent work includes two inventions related to heat pump operation and control.

“Heat pump system and control method thereof” describes a system that uses sensors to monitor discharged water temperature and refrigerant temperature. A controller determines a target condensation temperature from the water-temperature reading, compares it with the current condensation temperature, and adjusts the expansion valve accordingly. The system also includes a compressor, water heat exchanger, expansion valve, and outdoor heat exchanger.

“Heat pump system and method for controlling the same” describes a system that estimates refrigerant supercooling using outdoor temperature, inlet water temperature, compressor operating frequency, and pressure and condensation temperature readings. Its controller compares the reference and current supercooling degrees to determine whether refrigerant leakage may have occurred.

Career Highlights

Chang’s patent portfolio reflects an emphasis on improving heat pump control through sensor-based monitoring and automated adjustments. The disclosed methods use operating conditions and temperature measurements to guide system performance and identify potential refrigerant leakage.

Collaborations

Chang’s listed coworkers include Sangyoon Han and Taeil Kim. His work is associated with Samsung Electronics Ltd.

Conclusion

Min Chang’s patents address practical control and monitoring challenges in heat pump systems, including expansion-valve adjustment and refrigerant-leak detection.