Confined bubble growth during flow boiling in a mini/micro-channel of rectangular cross-section Part I: Experiments and 1-D modelling

Confined bubble growth during flow boiling in a mini-/micro-channel of rectangular cross-section part II: Approximate 3-D numerical simulation

“…state (a). The corresponding results will be compared with the experimental data in Part I [14]. Fig.…”

“…The top wall of the channel is adiabatic. Bubbles are generated by numerically injecting vapour from t ¼ 0 to t ¼ 3.9 m s at a steady mass flow rate of 2.35 Â 10 À8 kg s À1 , to give the increasing rate in volume consistent with the experiment in [14], through a circular inlet with a diameter of 0.2 mm located on the side heated wall at x ¼ 10 mm. The vapour and liquid properties are assumed to be constant at values corresponding to the saturation temperature as shown in Table 1.…”

“…The study in Part I [14] provided a critical review of recent developments and experimental examples of confined bubble growth without and with flow reversal for different upstream conditions during flow boiling of water in a single channel 40 mm long and of rectangular crosssection 0.38 mm  1.6 mm. A 1-D model for the pressure changes accompanying growth was developed as an aid to the rational specification of the inlet resistance required to suppress flow reversal.…”

Bubble confinement and deformation during flow boiling in microchannel

“…Deng et al [12,13] observed the micro-bubble behavior on a platinum microheater with pulsed heating. Gedupudi et al [14] studied the confined growth of bubbles during flow boiling in rectangular mini/micro-channels with two stages of partial and full confinement of single bubble growth. Wang and Sefiane [15] examined bubble growth during flow boiling in high-aspect-ratio micro-channels, and presented a three-stage bubble growth model.…”

An experimental study of two-phase pressure drop of acetone in triangular silicon micro-channels

“…Flow boiling is a highly efficient mode of heat transfer at micro scale [1][2][3]. Flow boiling in micro-channels has many advantages, such as very uniform chip temperatures distribution [4].…”