NOTE: This is an obsolete link. We recommend using the GunnsFluidCondensingHxSeparator instead.

This extends GunnsFluidConductor with the gas network side for a gas-liquid separator. This is a simpler version of the GunnsFluidCondensingHxSeparator. This lacks the condensing heat exchanger and slurper components of that link, and only models the separator drum itself. This model works in conjunction with a GunnsFluidSeparatorLiquid link in the same or an external network. This link sends the liquid pumped pressure & temperature of the condensate to the liquid bus link and receives a liquid transfer demand mass flow rate. The transferred liquid mass is removed from the drum. The separator can interface with a motor model like a GunnsGasFan link; however this link does not model shaft torque to send back to the motor.

This model can only condense water vapor (GUNNS_H2O fluid constituent).

This link assumes that the air passing through it has already been cooled to a point where water condensation would have occurred. It treats the water vapor in the air stream as condensed and removes it from the stream as long as the air's relative humidity is > 1. The removed water is added directly to the separator drum.

Liquid water doesn't exist as a GUNNS fluid in this link; rather the liquid mass is tracked internally in the model. This link does not model evaporation and dryout.

Unlike most other pipe & HX links, this link does not model isentropic expansion. This link can remove water vapor from the gas stream passing through it.

The following diagram shows how the GunnsFluidSeparatorGas and GunnsFluidSeparatorLiquid links interfaces for transferring of pumped condensate to the liquid network:

Port Connection Rules (These are limitations on the port connection to nodes that the link enforces in run-time):

• Same as GunnsFluidConductor.

Other Rules (These are extra rules you should always try to follow):

• Both nodes must be gas phase for this link to work properly.
• Water vapor (GUNNS_H2O) should be a fluid constituent in the network.
• As with normal conductors, try to combine conductors and this link in series into a single GunnsFluidSeparatorGas whenever possible to reduce network node count.

Configuration Data Parameters:

• maxConductivity: Same as GunnsFluidConductor.
• gasType (default = FluidProperties::NO_FLUID, must = a fluid constituent in the network): Currently only water vapor is supported, so this should be FluidProperties::GUNNS_H2O.
• massExponent: Same as the wsMassExponent term in GunnsFluidCondensingHxSeparator.
• maxLiquidMass: Same as the wsMaxCondensate term in GunnsFluidCondensingHxSeparator.
• referenceSpeed: Same as the wsReferenceSpeed term in GunnsFluidCondensingHxSeparator.
• referencePressure: Same as the wsReferencePressure term in GunnsFluidCondensingHxSeparator.
• referenceRemovalRate (default = 0, must be > 0): Similar to the slurperFlowRateRef term in GunnsFluidCondensingHxSeparator. This defines the rate at which water is removed from the air stream when the drum is spinning at the referenceSpeed.

Input Data Parameters:

• malfBlockageFlag: Same as GunnsFluidConductor. This malfunction blocks the main air flow path through the link. It does not affect condensate pumped to the liquid side.
• malfBlockageValue: Same as GunnsFluidConductor.
• separatorSpeed: Same as motorSpeed in GunnsGasFan, this is the initial motor shaft speed for the separator drum.
• transferFlowRate: Same as GunnsFluidCondensingHxSeparator.
• liquidMass: Same as the hxCondensateMass term in GunnsFluidCondensingHxSeparator.

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