Analysis of the Effect of Multiphase Fluids During the Boiling Process of Refrigerants Diluted or Undiluted with Miscible Oils (Phase 2)

This research project focuses on the comprehensive analysis of the effect of mixing refrigerants with miscible lubricating oils during the boiling process. The fundamental purpose is to evaluate how these mixtures influence heat transfer coefficients, aiming to optimize energy performance and reduce operational costs, aligning with global efforts to replace refrigerants with high Global Warming Potential (GWP) and Ozone Depletion Potential (ODP). The methodology combines a qualitative and quantitative approach. Initially, effort will be dedicated to theoretical design and the construction of a robust experimental apparatus, designed to operate for a minimum of six months, to determine the thermophysical transport properties of the mixtures. Subsequently, flow patterns within the piping will be experimentally analyzed to identify defects in refrigerant circulation. Finally, a numerical simulation phase of the flow through the piping network will be implemented to contrast computational results with experimentally obtained data, thereby validating the multiphase fluid behavior.<br/><br/><b>Goal</b>: <br/>To analyze the effect of multiphase fluids, specifically refrigerants diluted or undiluted with miscible oils, during the boiling process. A secondary objective is to investigate how this mixture affects flow patterns and thermophysical transport properties to achieve energy and economic savings.<br/><br/><b>Research lines</b>: <br/>Optimization and innovation of energy and renewable energies