[Bldg-sim] DOAU and DCV

Alan Jackson Alan.Jackson at BuroHappold.com
Wed Aug 12 08:40:06 PDT 2009


I have gone through the steps outlined in previous discussions to
implement a DOAU using a dummy zone. My question is whether it is
possible to implement DCV based on the sum of zone occupancy in order to
vary the outdoor air flow rate?

 

I have tried multiple scenarios including having the DCV sensors at the
room system and at the DOA system. I am using a variable speed fan. Is
this scenario possible and which parameters do I need to modify?

 

Thanks

 

"DOAU" = SYSTEM          

   TYPE             = PVVT

   HEAT-SOURCE      = HOT-WATER

   MAX-SUPPLY-T     = 65

   HEAT-SET-T       = 65

   MIN-OUTSIDE-AIR  = 1

   RECOVER-EXHAUST  = YES

   HW-LOOP          = "Hot Water Loop"

   CONTROL-ZONE     = "_DUMMY-ZONE_"

   ERV-RECOVER-TYPE = ENTHALPY-WHEEL

   ERV-RUN-CTRL     = WHEN-MIN-OA

   ..

"_DUMMY-ZONE_" = ZONE            

   TYPE             = CONDITIONED

   OUTSIDE-AIR-FLOW = 5400

   SPACE            = "_DUMMY-SPACE_"

   ..

 

Alan Jackson, LEED(r) A.P. 

Senior Mechanical Engineer

Buro Happold Consulting Engineers, PC

100 Broadway 

New York, NY 10005

USA

 

Tel: (+1) 212 334 2025

Direct: (+1) 212 616 0267

Fax: (+1) 212 334 5528

Email: alan.jackson at burohappold.com
www.burohappold.com <http://www.burohappold.com/> 

 

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