Ejector nozzle design by numerical simulation for the ejector type air-conditioner system

摘要

This paper presents numerical analyses for the study of the ejector nozzle of a solar aided ejector-based air conditioner system which uses water as working fluid. Analyses of steady-state Computational Fluid Dynamics (CFD) were conducted in order to corroborate and optimize the results of previous one dimensional studies in a three dimensional simulation. Several valuable discoveries were found through the simulation: Optimal conditions of geometry for known mass flow rates and temperatures were found; different dimensions of the nozzle were found as optimal for the same conditions proposed in previous literature; it was also proven that geometries and initial conditions, proposed in other literature, don't always yield physically reasonable results.