Seungwhan Baek

Feb 4, 2025 | nist.gov | Peter Bradley |Seungwhan Baek |Ray Radebaugh

Abstract In this study, two-phase heat transfer characteristics of cryogenic two-phase nitrogen were investigated. This basic information is required for the sequential design of a mixed refrigerant micro-cryocooler. The effective heat exchanger must be designed with a hydraulic diameter (Dh) less than 100 µm. The experimental setup was developed using microchannels with Dh=160 µm and 65 µm.