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Issue
Korean Journal of Chemical Engineering,
Vol.31, No.9, 1539-1546, 2014
Experimental study on performance of steam-water injector with central water nozzle arrangement
Li WJ, Chong DT, Yan JJ, Chen WX, Wang JS
The steam-water injector (SI) is a simple mechanical device that has been widely used in industry. We did an experimental study to find the influence of physical and geometrical parameters on performance of the SI. The physical parameters studied were steam inlet pressure, water inlet pressure and water inlet temperature. Whereas, the geometrical parameters studied were steam nozzle area ratio, area ratio of steam nozzle to water nozzle and the mixing section converging angle. Pump head was introduced to evaluate the lifting-pressure performance of the SI under different operating and geometrical conditions. Optimal values of steam nozzle area ratio and mixing section converging angle were 1.3 and 11.6o respectively, for the present work, and optimal value of area ratio of steam nozzle to water nozzle increased with increasing water inlet pressure. Two head-capacity curves were introduced to highlight the effect of various physical and geometrical parameters on the performance of SI.
Keywords: Steam-water Injector; Parametric Analysis; Entrainment Ratio; Pump Head; Head-capacity Characteristic
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