An analysis of two-phase flow stability in a thermosyphon with tube separator

✍ Scribed by Lanchao Lin; Amir Faghri

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 554 KB
• Volume: 18
• Category: Article
• ISSN: 1359-4311
• DOI: 10.1016/s1359-4311(97)00046-x

✦ Synopsis

AbstractÐA dynamic mathematical model is proposed to investigate the hydrodynamic stability of natural circulation two-phase ¯ow in a high performance thermosyphon with tube separator. A typical instability map for dierent tube separator diameters is made using the numerical solution of governing equations. The simulation results show that the operating temperature, the heat rate and thermosyphon inclination angle have signi®cant in¯uence on the ¯ow instability. The analysis approach can be extended to wider parameter ranges as well as various tube separator lengths and thermosyphon geometries.