Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question
1

Reduce Ventilation by Percentage measure not working correctly

asked 2017-02-13 03:45:07 -0600

Kingo's avatar

updated 2017-08-05 07:36:46 -0600

I'm trying to use the "Reduce Ventilation By Percentage" Measure in OS (Shown below). It should be reducing the design specification for outdoor air as far as i understand.

image description

When i use it, the total energy use changes but it does that regardless of the reduction i type into the measure, even when typing in 0% reduction.

My outdoor air specification is shown below and i think this is the number that the measure should target but now im not really sure? image description

If someone can solve this, it would be very nice :)

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted
3

answered 2017-02-13 08:38:45 -0600

Adam Hilton's avatar

The Reduce Ventilation By Percentage measure only modifies Outdoor Air Flow per Person, Outdoor Air Flow per Floor Area, and Outdoor Air Flow Air Changes per Hour based on lines 202-204 of the measure. I see that in your Design Specification Outdoor Air object you have 0 for each of those as you have defined your flow rate as a fixed flow rate.

edit flag offensive delete link more

Comments

2

@adhilton, thanks for pointing that out, I'll add a new line for outdoorAirFlowRate.

David Goldwasser's avatar David Goldwasser  ( 2017-02-13 09:50:47 -0600 )edit

Thanks @David Goldwasser! But i think something went wrong, as when i download the new one from BCL it only contains the .xml file and not the ruby measure ?? :)

Kingo's avatar Kingo  ( 2017-02-14 01:38:02 -0600 )edit

@Kingo, sorry we had some issues with the BCL upload, updated version is there now.

David Goldwasser's avatar David Goldwasser  ( 2017-02-15 09:38:20 -0600 )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

Careers

Question Tools

1 follower

Stats

Asked: 2017-02-13 03:45:07 -0600

Seen: 120 times

Last updated: Feb 13 '17