Exergy Analysis of Second Generation Micro Heat Sinks Under Flow Boiling Conditions

An exergy analysis was performed for flow boiling of R-123 in a hydrofoil-based micro pin fin heat sink. It was found that exergy efficiencies decreased with mass velocity at fixed heat input, pressure drop and pumping power under flow boiling conditions, and exergy efficiency could be better represented using the exit mass quality. The outcome of this study also proved noteworthy in view that exergy efficiency could be utilized to assess thermodynamic performance.