Flow boiling heat transfer in a microchannel has been experimentally studied. The experimental apparatus consisted mainly of peristaltic pump, pre-heater, test section and vacuum chamber for control of operating pressure. Deionized water was used as t...
Flow boiling heat transfer in a microchannel has been experimentally studied. The experimental apparatus consisted mainly of peristaltic pump, pre-heater, test section and vacuum chamber for control of operating pressure. Deionized water was used as the working fluid and a single round microchannel of 310 ㎛ inside diameter, made of 304 stainless steel, is used for the test tube. The experiment has been performed for the condition of heat flux from 35 to 86 kW/㎡, mass flux from 203 to 305 kg/㎡s (Re=168~254) and exit pressure from 11 ㎪ to 20 ㎪. The experimental results showed that the flow boiling heat transfer coefficients in microchannel were affected by heat flux and operating pressure, while slightly dependent on mass flux.