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

How to model Tubular Daylight Devices in OS?

asked 2015-02-14 17:44:19 -0500

Dinosaver's avatar

updated 2015-02-16 08:19:45 -0500

I beg a pardon for so many questions, but OS is really not so obviously connected to E+ as it could be... The question is in the topic, simulation returns the same fatal error:

FindTDDPipe: Surface=SUB SURFACE 11, TDD:Dome object does not reference a valid Diffuser object....needs DaylightingDevice:Tubular of same name as Surface.

In E+ TDD object looks different and has additional settings to model it. Does OS support TDD the same way?

edit retag flag offensive close merge delete


No need to apologize, this is what UnmetHours is for!

__AmirRoth__'s avatar __AmirRoth__  ( 2015-02-15 08:39:32 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted

answered 2015-02-14 20:44:54 -0500

TDDs are not yet supported in OpenStudio, but when they get added they will work in pretty much the same way as in E+. We just have not yet wrapped the DaylightingDevice:Tubular object in OpenStudio. In the meantime, these can be modeled using an E+ Measure.

edit flag offensive delete link more


Would be great to exclude this object from subsurface's choice :)

Dinosaver's avatar Dinosaver  ( 2015-02-15 04:07:08 -0500 )edit

Or add the TubularDaylightingDevice object. It is straightforward to handle in E+, I think the radiance integration is more challenging though.

macumber's avatar macumber  ( 2015-02-15 11:33:16 -0500 )edit

Your Answer

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

Add Answer

Training Workshops

Question Tools

1 follower


Asked: 2015-02-14 17:44:19 -0500

Seen: 257 times

Last updated: Feb 16 '15