Simple Flow Mixer to Calculate Outlet States
by S. Gabel for ASHRAE
Revised for TRNSYS by N. Blair and R. Schwarz

      	This model was adapted strictly for use with the TRNSYS Program by
the Solar Energy Laboratory.

	This subroutine calculates the outlet states for a mixing process based
on simple conservation equations.  The outlet flow rate is the sum of the two 
entering flow rates.  The outlet temperature is the weighted average of the 
entering streams, using the flow rates as the weighting factors.  While the 
nomenclature and mathematical description use temperature as the calculated 
state variable, the subroutines can also be used for calculation of any 
conserved state variable.  Component 1204 calculates the inlet states for the 
flow mixer.
        Sample input and output are included in the source code.

REF: A Toolkit for Secondary HVAC System Energy Calculations  May 25, 1992
     Joint Center for Energy Management  University of Colorado at Boulder