Effect of nozzle position on water ejector efficiency

The aim of this experimental is to investigate the efficiency water ejector. The effect of nozzle position on its efficiency was investigated. Nozzle position varied the ratio of nozzle-to-throat spacing to throat diameter (X = L/D) with values of 0, 0.5, 1, 2 and 3 respectively. The maximum water ejector efficiency obtains for nozzle-to-throat spacing to throat diameter ratio is approximate 14 %. The experimental results were found in good agreement with the ESDU design guide.