In this study

the air-side heat transfer performance of a mixed flow bubble plate heat exchange is investigated. The control variable method is used to determine factors that affect the heat transfer performance and water flow resistance of the bubble plate. The results show that an appropriate increase in the spray water flow rate can improve the uniformity of the water film distribution on the surface of the bubble plate such that the heat transfer can be improved; the recommended value for the spray water mass flux is no less than 0.347 kg/(s?m). When the plate spacing is increased from 20 to 30 mm

the air-side pressure drop decreases significantly. As the plate spacing further increases

it has a trivial effect on the air-side pressure drop. A 25 mm plate spacing and an average cross-sectional wind speed of 6.66 m/s are optimal parameters in terms of the air-side pressure drop and heat transfer performance. Compared with the anterior position arrangement

the plate dislocation arrangement is more reasonable and affords better heat exchange performance. Results show that the heat exchange effect of the dislocation arrangement is 1.1–1.4 times that of the anterior position arrangement.