Experimental results presented in Fig s. 6 and 7 show the efficiency of the ejectors as a function of the Reynolds number in the entrance tube. It was verified that Type A ejectors with the area ratio R50.35 were more efficient than the others, with a maximum efficiency of 30.5% for the A2~25! ejector. However, it can be seen through the inclination of the curve presented in Fig. 7 for the A2~32! ejector that the efficiency did not reach its maximum point because of lower pump capacity. Therefore, it could be in-ferred that the maximum efficiency of the A2~32! ejector is even
larger than that observed in its smaller equivalent, namely, the A2~25! ejector. While analyzing the ejectors of area ratio R50.35, it was verified that the efficiency of the Type A equipment was about two to three times the efficiency of the Type B, which reached a maximum efficiency of about 15% with the B~25! ejector.