The mixture isentropic enthalpy drop to a pressure of 0 psig is 1192 – 1144 = 48 btu/lb. ![]() ½ B model steam consumption is 11.7 lb/hr ![]() Suction capacity is approximately 54 SCFM. The following is a similar analysis as in the posts for the GH ½ B model jet pump Keep the reports on progress coming, please. Also, the methodical way it is being thought through. So, the question remains for tiny turbines, would an ejector lose more than it gains?įor all that, I am in awe of the tiny rotor and blade cutting that TG is undertaking. AND even if he can get the running speed up to where it should be, how long will the bearings stand up to it? Or, indeed, how long will the blades stay attached to the hub? AND what losses would there be in a wee gearbox to reduce the speed to something manageable? ![]() All assuming motive and entrained fluids of identical density.īUT earlier in this thread TG is reporting a blade speed to fluid speed ratio of 0.022 - way down on where it should be for a two velocity staged machine. Hence power falls as the ratio of mass flow increase or velocity decrease. You are right for constant momentum, but greater mass flow, the TORQUE would remain constant for a given design of blades, but at the same time the optimum running speed would fall in the ratio of the mass flow increase (same as velocity decrease).
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