**3.5 Steam ejector refrigeration system**

In a steam ejector refrigeration system (SERS), high-pressure steam of 10 bar is employed at a velocity of about 1200 m/s. The water evaporates at 4–7°C for airconditioning duty was obtained with a steam ejector at low pressures ranging between 8 and 22 mbar. However, SERS' coefficient of performance is lesser than that of the vapor absorption system, and this placed a limit in its application where a large quantity of steam is required (**Figure 4**) [16].
