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How to model GSHP / SDHV system in Openstudio?

asked 2015-03-22 21:33:37 -0600

Namhyuck's avatar

updated 2020-03-10 09:53:25 -0600

Hello, I just started learning how to use openstudio from a few months ago, and now I'm trying to utilize the program for my thesis project. The study is about comparing a number of different HVAC system to find an optimal application. As a part of it, I'm trying to model Ground Source Heat Pump and Small Duct High Velocity system. I have tried to search whatever information before, but couldn't find the one. I tried to build the GSHP from Ground Vertical Heat Exchanger which is a ground source, and connected water-to-air HP coils on each thermal zone, and linked each of them to a ground source loop. But it seems that the system doesn't work well, as the result shows significantly higher consumption even compared to a conventional HP. Maybe I missed some steps, and same thing happens when trying to build SDHV system.

Is there any references or tutorials about how to build those system (especially GSHP) in openstudio other than one from "Sizing a Vertical Ground Heat Exchanger with GLHEPro and OpenStudio" ? Any comments are appreciated.

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answered 2015-03-25 08:26:56 -0600

The GLHEPro tutorial is the most complete documentation we have. If your heat pump is running but underperforming, consider leaving the ground HX off the condenser system and instead use the district heating and cooling components. Basically stop at step 5 in the tutorial. This will make sure your condenser temperatures aren't drifting way out of line causing the heat pump to underperform. If the problem persist you can be more confident that the problem is related to the heat pump itself.

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ericringold's avatar ericringold  ( 2017-11-07 17:13:47 -0600 )edit

Anybody still have this tutorial? They took it down and the link is dead.

jmoody's avatar jmoody  ( 2020-07-08 13:20:46 -0600 )edit

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Asked: 2015-03-22 21:33:37 -0600

Seen: 855 times

Last updated: Mar 25 '15