[BLDG-SIM] Circulation Loop Fluid Type in eQuest

[Lynn Qualmann]

All -

 

DOE2.2 documentation (see below) indicates it is possible to specify
circulation loop fluid properties for fluids other than water (also,
fluid heat capacity is reported in PV-A, which seems to indicate this
parameter should be adjustable). The keywords in the documentation are
FLUID (acceptable values WATER, ETHYLENE-GLYCOL, PROPYLENE-GLYCOL) and
FLUID-CONC (%) to specify fluid type and its concentration. I don't see
any place to specify these parameters in any of the wizards or the
Detailed Design mode. I tried editing the keywords into the definitions
of the CHW and HW circulation loops in the input file, which generated
UNKNOWN KEYWORD errors (curiously, only for the FLUID keyword, not
FLUID-CONC). Does eQuest constrain the user to 100% H2O or is there some
way to affect these values? Is FLUID not the right keyword (FLUID-TYPE
doesn't work)? Should the fluids be defined somewhere other than in the
definition of the circulation loop?

 

Documentation can be found by entering the DOE2 help screen and
selecting CIRCULATION-LOOP in the index, which provides several options
to display. Select "circulation-Loop" (note non-standard capitalization)
and you will get a list of subtopics to select from. Select "Brines" and
from the subtopics at the bottom of the resulting screen, select "Actual
Fluid". The keywords noted above should be available from there.

 

Thanks for any insights.

 

R. Lynn Qualmann

SBW Consulting, Inc.



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