Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question
3

Ideal Loads Air System doesn't meet thermal comfort requirement

asked 2021-07-27 09:59:25 -0600

Liza Lee's avatar

Hi, I'm having this problem with Ideal Loads Air System.

Everything seems all right, it's an office building, HVAC system is available when there is occupancy. I had "Zone Thermal Comfort ASHRAE 55 Simple Model Summer or Winter Clothes Not Comfortable Time" output. And it shows it's still uncomfortable even the HVAC is on.

What did I do wrong, why the ideal loads air system didn't meet the loads?

I will be very thankful if anyone can tell me the answer. Thanks!

edit retag flag offensive close merge delete

Comments

Have you set Humidification Setpoint and selected Defumidification Control Type in HVACTemplate:Zone:IdealLoadsAirSystem? Or have you set ZoneControl:Humidistad and selected Defumidification Control Type in ZoneHVAC:IdealLoadsAirSystem? If not, the Ideal Loads Air System will not dehumidify and will not satisfy the thermal comfort.

If the climate is very dry, you may need to humidify (please add Humidifer:Steam:Electric or Humidifer:Steam:Gas).

Keigo's avatar Keigo  ( 2021-07-27 10:38:35 -0600 )edit

yeah, i didn't set those. Must be the humidity. Thank you so much

Liza Lee's avatar Liza Lee  ( 2021-07-27 21:26:04 -0600 )edit
1

Keigo your answer makes sense... should you post as an answer rather than a comment?

sashadf1's avatar sashadf1  ( 2021-07-27 23:31:33 -0600 )edit

1 Answer

Sort by ยป oldest newest most voted
3

answered 2021-07-28 00:15:39 -0600

Keigo's avatar

The following is exactly the same as what I wrote in the comments.


Have you set Humidification Setpoint and selected Defumidification Control Type in HVACTemplate:Zone:IdealLoadsAirSystem? Or have you set ZoneControl:Humidistad and selected Defumidification Control Type in ZoneHVAC:IdealLoadsAirSystem? If not, the Ideal Loads Air System will not dehumidify and will not satisfy the thermal comfort.

If the climate is very dry, you may need to humidify (please add Humidifer:Steam:Electric or Humidifer:Steam:Gas).

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Careers

Question Tools

1 follower

Stats

Asked: 2021-07-27 09:59:25 -0600

Seen: 171 times

Last updated: Jul 28 '21