smart buildings smarter balancing andy stadheim, pe airnab [email protected]
TRANSCRIPT
Smart BuildingsSmarter Balancing
COMFORT vs. EFFICIENCY
Paperless TAB
BIM + TAB
COMFORT vs. EFFICIENCY
Cheap Energy
Building Envelope was a lower priority
BAS systems were not as sophisticated
Comfort
Energy is expensive
Building Envelope is a major concern
BAS systems and the equipment are sophisticated
Efficiency
Paperless TAB
Review TAB technicians work daily or weekly
Perform re-testing immediately vs. Trips back
Avoid the BATCH review at the end that delays the report turnaround and even occupancy
Continuous REVIEW
Invite building owners and Cx agents to a project
Deliver issues found digitally to the GC and team
TAB work performed is user / time stamped
Transparency
Paperless TAB
Less time shuffling paperwork
Less time running into the office
More time with “Hoods in the air”
Turn around reports “immediately” after done
Save TIME
All readings have user and time / date stamp
Readings can be made wirelessly to hoods
Easily track issues found and items to fix
More ACCURATE
Paperless TABProject Manager
Over 20,000 projects ~ 1k/mo.
Paperless TABEquipment Tree
Over 3 million equipment tested
Paperless TABIssues Log
Over 300,000 notes and issues logged
BIM + TAB
BACnet = industry communication protocol
Lonworks = industry communication protocol
N2 bus = proprietary communication protocol
Etc.
BAS = Building Automation SystemWhere
gbXML = industry communication protocol
COBIE = industry communication protocol
CUSTOM = as with BAS, also with BIM
BIM = Building Information ModelingAND
Building Information ModelingBuilding Information Modeling (BIM) is the
process of generating and managing building data during its life cycle[1]. Typically it uses three-dimensional, real-time, dynamic building modeling software to increase productivity in building design and construction.[2] The process produces the Building Information Model (also abbreviated BIM), which encompasses building geometry, spatial relationships, geographic information, and
quantities and properties of building components.
BIM + TAB
Equipment - AHUs, Fans, Pumps, VAV's, Registers
Equipment names and unique ID #’s – a digital version of an equipment schedule.
Properties Make, Model, Design CFM, RPM, Volts, Amps etc.
Also,
Areas – Room #’s, names etc.
“quantities and properties of building components.”
BIM + TABWhat does the data look like?
<AirLoopEquipment id="East6-Equip-38" equipmentType="VAVBox"> <Name>Hot water reheat boxes</Name> <Description>Used for reheat on VAV systems with hot water terminal coils</Description> <MinFlow unit="Fraction">0.3</MinFlow> <Flow unit="CFM" FlowType=“RatedFlow">250</Flow> <Flow unit="CFM" FlowType="MinFlow">80</Flow> <Temp unit="C" tempType="CoolDesign">12.8</Temp> <Temp unit="C" tempType="HeatDesign">48.9</Temp> <DeltaP unit="Pascals">-50</DeltaP> <DeltaT unit="C">30.6</DeltaT> <MinRelativeHumidity unit="Fraction">0.1</MinRelativeHumidity> <MaxRelativeHumidity unit="Fraction">0.9</MaxRelativeHumidity> <Power powerType="HotWater" useType="Heating" /> <Cost>2000</Cost> <HydronicLoopId hydronicLoopIdRef="HydLoop-8" hydronicLoopType="HotWater" /> </AirLoopEquipment> </AirLoop>
BIM + TABWhat does the data look like?<AirLoopEquipment id="East6-Equip-38" equipmentType="VAVBox">
<Flow unit="CFM“ FlowType=“RatedFlow">250</Flow>
<Flow unit="CFM" FlowType="MinFlow">80</Flow>
</AirLoopEquipment></AirLoop>
NAME
DESIGNMAX
DESIGNMIN
End ofUnit
BIM + TAB
Take off/Bid – Perform Bids with less data entry
Automated Project setup Record site data, tied to original design.
Audit Trail – Each recording has time/date stamp
Final Report – Ability to print the final CFM on the original print via the BIM id connection, no representative drawing required – AUTOMATIC.
How does this digital data help TAB?
BIM + TAB
Data source– Completeness vs. Partially complete
Ie. Engineers have to be utilizing tools that can create a BIM compliant file and know how to use it.
Detail data–
Naming / numbering of registers, right parameters
File Size– BIM files can become very large
Tools– Cost and ease of use.
All this sounds to good to be true...
Main Challenges:
BIM + TAB
Autodesk – REVIT – Design projects
Bentley – Microstation – Design projects
AiRNAB – Read and build TAB projects + publish back
Tools
ProtocolgbXML – Green Building XML
COBIE – Construction Operations Building Information ExchangeBESTOPEN > PROPRIETARY
TWO-WAY > ONE-WAY
BIM + TAB
Basic flow of BIM data
BIM
gbXML
COBIE
GC
Mech
Elec
Engineer
Design Construction Ownership
O&M
Service
Warranty
BIM
TAB
BIM + TAB
Projects– Over 30,000 projects digitally captured
Equipment– Over 5.0 million equipment objects tested.
Notes / Issues– Over 300,000 notes and issues logged digitally.
Digital documentation milestones
