Zhu Jianlu, Ji Peng, Li Yuxing, et al. Experimental Investigation on Flow Distribution in the Header of Plate-fin Heat Exchanger in Tilt State[J]. Journal of refrigeration, 2014, 35(4).
DOI:
Zhu Jianlu, Ji Peng, Li Yuxing, et al. Experimental Investigation on Flow Distribution in the Header of Plate-fin Heat Exchanger in Tilt State[J]. Journal of refrigeration, 2014, 35(4). DOI: 10.3969/j.issn.0253-4339.2014.04.025.
Experimental Investigation on Flow Distribution in the Header of Plate-fin Heat Exchanger in Tilt State
Offshore platforms will shake and tilt because of marine motion
which will influence flow distribution in the header of plate-fin heat exchanger. The distribution of pure water/air and air-water two-phase flow in horizontal and tilt state were conducted in the air-water two-phase flow distribution experimental apparatus. The effect of gas-liquid ratio and tilt angle on flow distribution in the header of plate-fin heat exchanger in tilt state were studied. The results show that flow distribution in static state is subject to the influence of the inertial force
and the flow distribution unevenness increases with the increase of the inlet flow and gas-liquid ratio. In tilt state
flow distribution is subject to the influence of both inertial force and gravity
and flow distribution evenness is much lower than the static state. Flow distribution unevenness increases with the increase of tilt angle
and is more sensitive to tilt when gas-liquid ratio increases. It is suggested that the header and heat exchanger should be fixed and installed strictly at horizontal/vertical state. Meanwhile the influence of tilt can be eliminated through the improvement of liquefaction process and heat exchanger design.