“Air Distribution and Contaminates in Multi-Occupied Spaces€¦ · The INOVA Heart Institute...

The INOVA Heart InstituteFalls Church, VA

“ Air Distribution and Contaminates in Multi-Occupied Spaces ”

David Peterson

Senior Thesis Project Mechanical Option



*Outline*



Air Distribution Analysis


*Outline*

Daylighting Analysis

Structural Analysis

Background Information



*Background Information*


INOVA Heart Institute is :

an addition to the original,

INOVA Fairfax Hospital


a part of theINOVA Health System


The new facility is:

currently under construction

located towards the rear of original hospital

original hospital is shown to the right

The INOVA Heart InstituteFalls Church, VAHistory


The INOVA HEALTH SYSTEM

BEGAN IN 1956

INCLUDES A NETWORK OF HOSPITALS IN NOVA

IS A NOT-FOR- PROFIT HEALTH CARE PROVIDER

The INOVA Heart InstituteFalls Church, VAHistory


The existing and new buildings combine to make a Hospital:

EmergencyOperatingRecoveryCareLaboratory

The INOVA Heart InstituteFalls Church, VAFunction


The existing and new buildings combine to make a Hospital:

CancerHeartLiverTransplantTraumaObesityOrthopedicsWomen and Childern Services

The INOVA Heart InstituteFalls Church, VAFunction


The overall size of the new addition:

Approx. 410,000 SQ.FT. (Total)6 Floors156 Patient Beds180 Car Garage6 Cardio-Vascular Operating Rooms3 Story Grand Entrance Atrium

The INOVA Heart InstituteFalls Church, VASIZE/SITE


Structural:

Poured concrete column and beam, non-sway system (w/ support drop panels at columns)

All floors are steel reinforced with combo of 1 and 2 way slabs

Steel Reinforced concrete slab roofing system

The INOVA Heart InstituteFalls Church, VABuilding Systems


Mechanical:

Mechanical Penthouse 13 AHUs (3-Standbye)approx. 400,000 cfm

3 Separate CAV systems (3 wings)1 VAV system (atrium)Mechanical Penthouse (5th Floor)Remote Chilled Water and Steam provided by

existing centralized plant



Electrical:

Two Primary 33 kV source feeders

Two 2500 kVA primary transformers

Each with 480/277 secondaries and network protectors

Emergency Power provided by a 5 kV back up generating system



Architect: Wilmot/Sanz

Landscape Architect: Lewis Scully/Gionet

Engineers: RMF Engineering (MEP)

Dewberry & Davis (CIVIL)

Cagley & Associates (Structural)

Builder: Turner Construction

Owner: INOVA Health System

The INOVA Heart InstituteFalls Church, VAProject Team


Cost To Date:

$80 MILLION

Scheduled Completion:

August 2004

The INOVA Heart InstituteFalls Church, VACost/Completion


*Air Distribution Analysis*



Air Distribution Analysis


Design Climate ConditionsSpaces analyzed

Contaminate IntroductionSolutions for Better ConditionsImplementation of Solutions


The INOVA Heart InstituteFalls Church, VASpaces analyzed

Family Waiting Room



Post Anesthesia Care Unit



Transplant Waiting Room



Surgical Waiting Room

Courtesy of Centre County Community Hospital


The INOVA Heart InstituteFalls Church, VAAge of Air (normalized)





Family Waiting Room








The INOVA Heart InstituteFalls Church, VAContamination 100%

Family Waiting Room


The INOVA Heart InstituteFalls Church, VAContamination (patient only)



The INOVA Heart InstituteFalls Church, VAContamination (non-patient)











Closer look! ~ “Region of Most Concern”

The INOVA Heart InstituteFalls Church, VAContamination (one person)


More probable situation


Solutions Investigated


Rearrange/move diffusers

Change diffusers to increase throw



Rearrange/move diffusersAnalyze again w/ 100 contaminates


*Constructability Analysis*



Constructability Analysis


Cordination Section (3-D) BeforeExisting Conditions

Modified ConditionsCordination Section (3-D) AfterSchedule of Implication



Existing Conditions

Scans of Drawings here



Existing Conditions

Pictures actually taken of plenum here



Existing Layout (at Capacity)



Cordination Section (3-D) Before



Modified Conditions



Cordination Section (3-D) After



Schedule of Implication



*Daylighting Analysis*


Daylighting Analysis


SimulationsRequirements

Architectural/Structural Mechanical Energy Cost

Benefits



Requirements

Patient Rooms Similar to Bedrooms

Daylight factor of 0.5 %

= daylight at pt. in room/ unobstructed daylight outside on a pt. (Horz. Surfs)

Daylight factor Cover approx 60 Sq.Ft.Daylight factor should reach ¾ depth of

space from room



Simulations

North Exposure

South Exposure

West Exposure

East Exposure


The INOVA Heart InstituteFalls Church, VASimulations

(Plotted Depth of Daylight Factor)

North Exposure

South Exposure

West Exposure

East Exposure



Simulations

Performed simulations at:

12 noon

Summer Solstice (June 21)

Winter Solstice (December 21)

Equinox (March 21)

Partly Cloudy Sky's



Simulations

All Perimeter Patient Spaces met the Bedroom Daylight Factor Requirements

# of Perimeter Spaces that can have window reduced in size = 96 rooms

Reduction in exposed window area all directions approx. 576 ft2



Mechanical Benefits

Cost per year reduction $=

Energy Consumption per year in Btu/hr =



Architectural/Structural



Mechanical Energy Cost Benefits

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“Air Distribution and Contaminates in Multi-Occupied Spaces€¦ · The INOVA Heart Institute...

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