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

Open studio load calculation

asked 2018-11-12 08:36:31 -0500

Chriskab gravatar image

Hello I am training with openstudio. My goal is load calculation with openstudio. I don't know what I am doing wrong but I have no load calculation in my reports. My buiding is a single room with 2 windows. No hvac devices is used. Weather file is form montreal , canada.

Thanks a lot for any help.

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2018-11-12 09:26:14 -0500

You need to click the "Enable Ideal Air Loads" checkbox on the Thermal Zones tab for the zones for which you want load to be calculated (and add thermostats schedules for these too)

edit flag offensive delete link more


I did your suggestion. I still don't have a number on HVAC sizing summary in report. How to set indoor Design temperature maybe this is the key.

Chriskab gravatar image Chriskab  ( 2018-11-12 12:14:59 -0500 )edit

Indoor design temperatures are controlled by the thermostat schedules that you put for the thermal zones, including their "Design Day" profiles (summer and winter). Also make sure you import design days on the first tab (Load "DDY")

Julien Marrec gravatar image Julien Marrec  ( 2018-11-13 02:24:41 -0500 )edit

Thanks.. I didn't load DDY. Thanks you for support.

Chriskab gravatar image Chriskab  ( 2018-11-13 08:43:44 -0500 )edit

Your Answer

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

Add Answer


Question Tools

1 follower


Asked: 2018-11-12 08:36:31 -0500

Seen: 180 times

Last updated: Nov 12 '18