Effect of nozzle diameter on steam ejector performance

Abstract EN

Single stage steam ejectors with different nozzle diameters between 1 to 4mm have been used to pump secondary fluid (liquid water).

The procedure is held at different steam pressures from 1 to 4 bars to optimize the best diameter to be used for the nozzle inside the steam ejector chamber.

The nozzle of 3mm diameter gives more reasonable results for delivery water temperature, and ejector performance.

The pressure and nozzle diameter dependence on water temperature is represented by empirical function over the ranges, delivery water temperature Tw from (28) to (35) oC, pressure P from (1) to (4.5), and nozzle diameter from (1) to (4) mm.

In overlapping ranges, the results agree well with those previously published.