Setting a new schedule type

asked 2015-05-12 04:15:38 -0500

Antop
353 ●3 ●12

Hallo all,

I would like to set an "outdoor air flow rate fraction schedule" based on the outside temperature. The purpose is to enable the natural ventilation when the external temperature reaches a certain value. Then I need to have two different schedules, for winter and summer.

In the schedule label, I can add a new object. Then, I have to select the schedule type and I should select temperature. Is It internal or external temperature?

Is there some other parameter/schedule that I have to set? Thanks A.

answered 2015-05-12 13:49:16 -0500

David Goldwasser

20295 ●94 ●14 http://www.openstudio.net/

You can't have one schedule assigned for summer and another for winter. If you want a pre-configured schedule with different values in different seasons you would setup one ore more rules with the date range set as desired.

Here is a link to documentation on Rulset Schedules

If you making are making a fraction schedule then you want to use a schedule type of "Fractional". If you want the behavior tied to outside conditions then you want a different type of control system. OpenStudio 1.7.0 simplified the dialog to create a new schedule. In the past you had a long list of "Classes" to choose from, and then chose a "Schedule Type". Now there is just the Schedule Type pull down list which lists the different value types available in EnergyPlus.

image description Screenshot from OpenStudio 1.7.0 new schedule dialog.

edit flag offensive delete link

Comments

Thanks for the reply.

I would like enable the natural ventilation when the external temperature reaches a certain value: Summer: I have to open the window when the outside temperature is lower then 26ºC Winter : I have to open the window when the outside temperature is upper then 18ºC

Within the "Schedule Type" list, I have selected "temperature". is it the external temperature? Do I have apply it to the "operable window"

Thanks A.