Fixed Flow Resistance by Michael J. Brandemuehl
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 algorithm determines the pressure drop throug a fixed
flow resistance, such as a pipe, coil, or other flow fixture,
given a flow resistance parameter. The algorithm nominally
calculates outlet pressure from the inlet pressure and flow
rate. However, it may be employed to calculate inlet pressure
from outlet pressure and flow by using a negative value for the
flow and substituting the leaving pressure as the subroutine input
pressure. The resulting subroutine output pressure will be the
pressure entering the valve.
Developed at: University of Colorado at Boulder
for the ASHRAE May 25, 1992