Experimental investigation of dryout of propane in uniformly heated single vertical mini-channels

► Dryout experiments of propane are performed in minichannels. ► Dryout heat flux increases with the increase of mass flux and internal diameter. ► Dryout heat flux increases with the decrease of vapour quality. ► The effect of saturation temperature on the dryout heat flux is insignificant. ► Callizo et al. correlation gives best predictions with MAD of 10%.