Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Water Service Modeling Help

asked 2015-07-07 04:46:19 -0500

andregama's avatar

updated 2015-07-12 10:14:16 -0500


(sorry in advance for the English)

So I have the following scheme,

1) Boiler----Pump1-----Plate Heat Exchanger----Boiler 2) Plate Heat Exchanger-------Pump2------Water Tank--------Plate Heat Exchanger 3) Water Tank------3 way Valve-----Showers------Pump3------Water Tank

I am new in the modeling, can anyone please guide me.

Do I have to create 3 water plant loop, and go from there?

I´m using Openstudio 1.7.5 and Energyplus 8.3

Thanks for the help

image description


First of all, thank you so much for the quick answer.

I just have to make the same question, because I have made a mistake in the drawing.

The water that leaves the Water Tank Storage (WTS), that is not used in shower does not return to the WTS, but actually pre-heat the fresh water that enter in the 3-way valve.

image description image description Do I have to change drastically the solution that was provide?


edit retag flag offensive close merge delete

1 Answer

Sort by » oldest newest most voted

answered 2015-07-08 08:51:13 -0500

updated 2015-07-08 09:12:41 -0500

Take a look at this question. It's not an exact match to your configuration but is close. Note that the HeatExchangerFluidToFluid is added to the demand side of the HHW loop from the Library (objects not in the model but available to it) and the same HX is added to the supply side of the SHW loop from the My Model tab (objects in the model). You will also need to define a WaterUseEquipment definition in the Loads tab and link it to the one in the Service Hot Water loop.

HHW Loop

image description

SHW Loops

image description

image description

image description

Water Use Equipment (load)

image description

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer


Question Tools

1 follower


Asked: 2015-07-07 04:46:19 -0500

Seen: 344 times

Last updated: Jul 10 '15