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

Revision history [back]

click to hide/show revision 1
initial version

OpenStudio Plant Sizing issue

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

image description

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:

image description

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.