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I need my plant loop pumps to circulate the working fluid during some hours with no actual load. I need this to charge the thermal storage tank during no-load conditions. Thermal storage is placed after the chillers mixer and chillers are controlled by cooling load based operation scheme. Also, my plant loop has no common pipe and has HeaderedPumps:ConstantSpeed in the supply inlet branch.

I considered LoadProfile:Plant but there are two problems with that. First, it affects the sizing of the pumps and chillers which is unfavorable. Second, I need chillers to operate based on load and PLR not based on flow requests. Do you have any suggestions to fix these issues (common pipe, ems, user-defined component etc)?

Update: Here is a visual perspective and an additional explanation about the virtual load [Ref]:

@Julien Marrec, Where should I use it? I didn't get your point. Actually, I got the idea of the virtual load from a pap

How can I create a virtual load to activate supply side of plant? I need my plant loop pumps to circulate the working fl

How can I create a virtual load to activate supply side of plant? I need my plant loop pumps to circulate the working fl

@Julien Marrec, Where should I use it? I didn't get your point. Actually I got the idea if virtual load from a paper. I

@Jullien Marrec, Where should I use it? I didn't get your point. Actually I got the idea if virtual load from a paper. I

How can I create a virtual load to activate supply side of plant? I need my plant loop pumps to circulate the working fl

How can I create a virtual load to activate supply side of plant? I need my plant loop pumps to circulate the working fl

How can I create a virtual load to activate supply side of plant? I need my plant loop pumps to circulate the working fl

best way to evaluate plant sizing results in optimization process I want to optimize chilled water loop sizing and confi

@Yi Zhang I provided some details. thanks.

best way to evaluate plant sizing results in optimization process I want to optimize chilled water loop sizing and confi

best way to evaluate plant sizing results in optimization process I want to optimize chilled water loop sizing and confi

best way to evaluate plant sizing results in optimization process I want to optimize chilled water loop sizing and confi

I have a primary-secondary chiller with common pipe simulation as can be seen below:

I want to have primary and secondary loops separated by an ideal heat exchanger. I created an empty water loop and moved my chiller and constant speed pump to its supply side. Then I added the fluid-to-fluid heat exchanger as below:

The issue is that the chiller size (autosize and same chiller) is twice as the previous configuration. I believe it should be the same. I appreciate if you got any advice for me.

OpenStudio Plant Sizing issue I have a primary-secondary chiller with common pipe simulation as can be seen below: I

OpenStudio Plant Sizing issue I have a primary-secondary chiller with common pipe simulation as can be seen below: I

OpenStudio Plant Sizing issue I have a primary-secondary chiller with common pipe simulation as can be seen below: I

OpenStudio Plant Sizing issue I have a primary-secondary chiller with common pipe simulation as can be seen below: I

OpenStudio Plant Sizing issue I have a primary-secondary chiller with common pipe simulation as can be seen below: I

Hi, I'm starting to learn eppy to hopefully use it for my project. I searched around Unmet Hours and read some of the previous posts. My concern is documentation being out of date. It says that it's "latest" version with no release date. I wonder is it up to date or I should follow GitHub to trace changes?

eppy documatation: Isn't it out of date? Hi, I'm starting to learn eppy to hopefully use it for my project. I searched a

@Ag That's a good solution. The problem is that there is no specific schedule for heating or cooling. Somedays both are

@Ag That's a good solution. The problem is that there is a specific schedule for heating or cooling. Somedays both are r

heating and cooling set-point for air loop supply node I am designing a multi-zone AirLoop system that provides cooling