Setting a new schedule type

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.

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.

20.4k

David Goldwasser

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

edit flag offensive 0 remove flag 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.