Dear All,
I am working on a model using the DES option 1 for supplying steam to my
building (district heating only so system 3). The baseline and proposed
have working steam meters and all looks well. My problem arose when I
went to fill in the new Section 1.4 tables for the pumping which brought
my attention to the fact that both models had auto-sized gpm flow and
pump size.
The auto sized values are WAY lower than the values on the mechanical
schedules! Auto-sized proposed model = 23gpm and .325kW...designed
proposed model = 141gpm and 11kW! Auto-sized baseline = 33 gpm and
0.467kW. If I input corrected pump size as per G3.1.3.5 this will give
me a baseline pump of 0.627kW. I'm worried that if I correct the
proposed pump size and flow to the designed numbers it will destroy my
energy cost savings.
Attached are the files for both models.
Thank you all,
Jacob Goodman, LEED AP