[Equest-users] Water Source Heat Pump Configuration in eQUEST Software

[Brian Fountain]

The 2nd image woll not simulate because DOE-2 does not allow primary equipment on a secondary loop.  You should find that error in the .bdl file.

You do not require 2 circulation loops to model the configuration you have sketched.  On the single WLHP loop, the boiler pump will be a child of the boiler, the fluid cooler pump will be a child of the cooling tower and the building pumps will be a child of the condenser loop.

Hopefully this is clear.

Brian

On Apr 24, 2022, 3:00 AM, at 3:00 AM, Ahmad Fraij via Equest-users <equest-users at lists.onebuilding.org> wrote:
>Hello Guys,
>I am modeling a water source heat pump system as shown in the schematic
>diagram below in eQUEST software. I was able to model the system as
>shown in the screenshot below (primary loop for the boiler and
>secondary loop for the WLHP water loop) and I can run the simulation
>and get the results, however, I have the following concerns:
>   
>- The air side system is connected to both the primary boiler loop and
>the secondary WLHP water loop. Is that correct? Also, in the component
>tree, the air side systems are not list in their folder under WLHP
>water loop.
>- The WLHP Fluid Cooler (i.e. the cooling tower) is connected to the
>boiler primary loop and not the WLHP water loop. If I assign WLHP water
>loop to the fluid cooler instead of the boiler primary loop as shown in
>the last screenshot of this email, I can't run the simulation and there
>is no error message at all to tell me what is the problem.
>I am attaching the .pd2 and .inp files if any one of you can help in
>this. Thanking you in advance.
>Regards
>Ahmad
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