Abstract Due to the phase-out of CFCs and HCFC refrigerants, propane is a nature refrigerant occurring substance produced by natural gas production oil refining. As result, has higher latent heat lower density than conventional refrigerants while maintaining comparable saturation pressure thermal conductivity. So, already widely used in domestic fridges freezers for many years. However, propane...

Two-phase pressure drop oscillations during flow boiling of pure fluid R245fa in a horizontal microchannel with diameter 0.9 mm were experimentally investigated. Three mass fluxes G = 400, 630, and 1100 kg/m2 s three different heat q 40, 50, 55 kW/m2 tested under the inlet 211.72 kPa subcooling 17 K. Flow instabilities analyzed based on images temporal oscillation results two-phase flux (G), (Δ...