Service Hot water Usage
I am designing the hotwater fixtures for a project that uses lav sinks at 1 gpm and a kitchenette sink at 1.5 gpm. I input those values into the water use equipment peak flow rate value. I am seeing unreasonably high water usage for the building in the 300k gallons per year range, even with a flow fraction schedule of .008 for only 1 hour a day for 5 days a week. If i reduce the water equipment peak load to .1 and .15 the value starts to make sense.
What other parameters are affecting the water usage that is making this water usage value be too high when the water use equipment peak flow rate is what the design calls for? Is there an input for gallons per person that I am not seeing?
Thank you for your input.
So the yearly water consumption is about 5 m^3 which translates to about 1320 Gal.
I am not sure where were you looking to get the 300K gals per year.
Comments
What software are you using? Also are you seeing a more than 10x decrease in water consumption when you decrease the peak flow rate by 10x? Also how many fixtures to you have? just one of each or mulitple of each?
Open Studio (1x) 1.5gpm (11x)- 1 gpm
When I decrease the peak flow rate by ten it reduces by 10x, but i also had to reduce the flow fraction scedule to only run for one hour at .01 a day for 5 days a week. The pump power when I do this goes to 0 because the flow fraction schedule is essentially nothing
Are you saying you see less water consumption when your flow fraction is 0.01 vs .0.008? That would seem odd. In both cases only non zero value for 1 hour a day? On side note each sink isn't getting used much, less than a minute a day of run time?
https://drive.google.com/open?id=1cr0...
here is the link to the file in a compressed zip file it might be easier to just look at the file itself