9 replies to this topic

[efwefsef]

can we export stem ejector model from hysys to aspen plus?

[pavanayi]

What are you trying to calculate? 

Ejectors are very difficult to rate/size using the simulation software. The only reliable answer will be from the vendor. 

[efwefsef]

i want to simulate a plant in aspen plus and for that i want an ejector.

[pavanayi]

Presumably you have sections of the plant operating under vacuum? If so, why not just set the pressure of the corresponding units to what it should be (at a vacuum) and proceed with the simulation? You don't necessarily need the ejector to set a pressure on a particular column or vessel.

[efwefsef]

yeah, but in actual plant i would require some equipment for that vacuum to be created and want to know the size of the equipment(may not be very accurate but an estimate).My question is that aspen hysys has steam ejector model in it, can i export this model to aspen plus.

[pavanayi]

I dont think you can use the models in Hysys in A+. Moreover, I will not even bother with the ejector model in Hysys, for the reasons I mentioned earlier.

From your A+ model, if you can get the flow rate of non condensibles, and you have an idea about the steam you want to use as the motive fluid, the size of the ejector can be obtained from a manufacturer. A vacuum pump can also be considered unless your plant has excess steam.

[Niranjana Murthy P]

Anyone has Steam Jet Ejector for Process Industries by Robert power book? Can you share?

[IonCube]

Yes there is a Ejector plugin that you can  register in HYSYS then you can use it in simulation

[Milad0677]

Hello

I am working on Hysys 12 and there is not ejector module in this version! I think the last version using ejector was 6.2. How can I simulate ejector part in Hysys 12??

[SilverShaded]

It's an usupported addin, you might still be able to find it on the AT support site as a download.  It cannot be transferred to A+.  question remains why do you need it?, just fix the pressure.