Trains of Taylor bubbles over hot nano-textured mini-channel surface

To enhance heat transfer in forced convective boiling the mini-channel bottom was amended by nano-textured structures – periodic rectangular mats of electrospun polymer nanofibers. The fibers were about several hundreds of nanometer in diameter. The test fluid was FC-72. The flow in mini-channels contained trains of the Taylor bubbles. The role of the nanofibers was to retain the warm mini-channel bottom wetted, to prevent dry-out and thus to …