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

Revision history [back]

Do DX systems overestimate fan usage in OpenStudio?

Hi. I was looking at the DX cooilng coil object in OpenStudio and observed that it contains evaporator fan information. I already have a supply fan in my airloop (which presumably would be functioning as an evaporator fan in reality). This has led me to wonder if fan usage is being double-counted here. It seems that I am required to have a fan object in my airloop despite the fact that the DX coil supposedly has a fan built into it. Any thoughts?

Thanks!

Do DX systems overestimate fan usage in OpenStudio?

Hi. I was looking at the DX cooilng coil object in OpenStudio and observed that it contains evaporator fan information. I already have a supply fan in my airloop (which presumably would be functioning as an evaporator fan in reality). This has led me to wonder if fan usage is being double-counted here. It seems that I am required to have a fan object in my airloop despite the fact that the DX coil supposedly has a fan built into it. Any thoughts?

Thanks!