how to model an interlock between DOAS and highbay doors in openstudio

asked 2016-05-31 12:51:51 -0600

willyJohan
1530 ●1 ●5 ●10

updated 2016-06-02 11:06:14 -0600

I am modeling a building that has two high bay spaces. The building is served by a VRF/DOAS system. The high bay areas are heating only and are taking transfer air from the rest of the building. When the doors are open, the air flow from the DOAS system is cut in order to reduce this transfer air to zero, while maintaining sufficient OA to the remainder of the building. What is the best way to model this in OpenStudio? Could I co-opt DCV controls perhaps?

Open to suggestions for manipulating the idf as well.

Thanks in advance.

answered 2016-06-01 17:02:13 -0600

aparker

8177 ●4 ●18 http://www.openstudio.net/

If you have the doors on a schedule you could make a mirrored schedule (doors open = 1, DOAS availability = 0) and assign this schedule to the DOAS on the Control tab of the DOAS AirLoop:

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thanks for the reply, is it possible to assign DOAS availability at the zone level? the problem i am having is that the majority of the building is occupied (and served by the DOAS) as normal, whatever the door position the high bays.

willyJohan ( 2016-06-01 17:24:27 -0600 )edit

Is it a VAV DOAS system? If so, and your terminals are VAV:SingleZone:NoReheat, you might be able to set the Zone Minimum Air Flow Method to 'Scheduled' and then modify the Minimum Air Flow Fraction Schedule for each zone to match the door opening and closing. I haven't tried this myself so not sure if it will work.

aparker ( 2016-06-04 08:17:36 -0600 )edit

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