Mixing chamber, high-velocity steam

Similarly, as the high-velocity steam enters the mixing chamber shown in Fig. 16.1, it produces an extremely low pressure. The gas flows from the jet suction nozzle and into the low-pressure mixing chamber. It is not correct to say that the gas is entrained by the steam. The gas just flows into the mixing chamber, because there is a very low pressure in the mixing chamber. 

The ejector is operated directly by a motive gas or vapor source. Air and steam are probably the two most common of the motive gases. The ejector uses a nozzle to accelerate the motive gas into the suction chamber where the gas to be compressed is admitted at right angles to the motive gas direction. In the suction chamber, also referred to as the mixing chamber, the suction gas is entrained by the motive fluid. The mixture moves into a diffuser where the high velocity gas is gradually decelerated and increased in pressure. 

HYLIFE Lithium Flow. The lithium jets are injected into the 8-m-high HYLIFE chamber with 9.5 m/s initial velocity (72.2 m /s flow rate). Additional coolant in the neutron reflector increases the flow to 86.2 m /s. The mixed-mean temperature rise in the lithium is 18 K, and the peak lithium temperature is 500°C. Eleven recirculation pumps, each with 7.8 m /sec (124,000 gpm) capacity, return the lithium to the top of the vessel. About 9.8 m /s is diverted from the flow loop to four Li-Na intermediate heat exchangers which in turn drive twelve steam generators. The plant gross electric power is 1236 MWg 135 MW is used to drive the 4.5 MJ - 5 % efficient laser, 95 MW is used elsewhere in the plant, and 1006 MW is the net power. 

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