FLOW REGIMES OF LOW GWP REFRIGERANTS INSIDE MICROFIN TUBES
Identification of two-phase flow regimes during condensation and flow boiling occurring inside enhenced tubes, such as microfin tubes, by means of a high speed camera. Development of flow regime maps.
TWO PHASE HEAT TRANSFER INSIDE MICROSTRUCTURED SURFACES
Measurements of heat transfer coefficient and pressure drop during single- and tw-phase flow (condensation and flow boiling) of low GWP refrigents and refrigerants mixtures inside smooth and enhanced tubes, as well as over extended surfaces such as metal foams. Modeling based on experimental data.
MELTING OF PCMs INSIDE 3D PRINTED STRUCTURES AND INSIDE METAL FOAMS
Experimental and numerical analysis of the melting and solidification process of Phase Change Materials (PCMs), such as paraffin, embedded in structures made by Additive Manufacturing and metal foams. Evaluation of some thermophysical properties of PCMs with experimental methods. Empirical modeling based on the experimental data..
TWO-PHASE HEAT TRANSFER OUTSIDE ENHANCED TUBES
Experimental tests during condensation and boiling of lnew low GWP refrigerants outsde tubes with enhanced surfaces. Heat transfer coefficients collected from experimental tests, coupled with development of empirical models.
SINGLE PHASE HEAT TRANSFER INSIDE METAL FOAMS
Experimental tests during air forced convection inside aluminum and copper foams. Heat tranfer coefficient and pressure drop obtained from the experimental tests. Numerical analysis of the air flow through the real structure of metal foam obtained by micro-tomography scannings.
