• a facile pressure drop measurement system and its applications to gas–liquid microflows

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 810
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a system for measuring the pressure drop of a fluid in a microchannel was developed in this study with measurements ranging from 0 to 7 kpa and an accuracy of 1 pa for constant pressure drop. this system utilizes commercial pressure sensors, self-made amplifiers and a vibration insulation platform to insure accuracy and reproducibility of the results. pressure calibrations can be conveniently computed using the manufacturers’ datasheet. this measuring system was firstly tested with the pressure drop measurement of single-phase flow in microchannels and the results showed good agreement with theoretical computations. oscillating pressure drops in the generation of bubbles in t-junction microchannel were studied using the pressure measurement system and their amplitude relatively to the change of working systems is carefully discussed with the comparison of theoretical models from literatures.

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