Study on two-phase flow instability of direct steam generation in solar thermal power

A research is proposed on two-phase flow instability in parabolic trough DSG solar power by means of theoretical analysis combined with numerical simulation, which is based on the working mechanism, heat transfer characteristic of the parabolic trough DSG solar power, and the basic principle, main factors and damages of two-phase flow instabilities. The detailed study of uneven distribution of solar heat absorbing tube is conducted, which is one of the most significant issues that should not be neglected. A theoretical model is constructed, and then the analysis of single-tube, twin-tube is completed and a stability analysis is also progressed to verify this research.