Philip Mackey The Pennsylvania State University Architectural Engineering L/E Option

Philip MackeyThe Pennsylvania State University

Architectural EngineeringL/E Option

HCHOLY CROSS HOSPITAL – NORTH ADDITION

FINAL REPORT Phil Mackey

Holy Cross Hospital – North Addition

Location: Silver Spring, MDOwner: Holy Cross HospitalArchitect: SmithGroupEngineers: Leach Wallace Assoc. (MEP)CM/GC: Bovis Lend Lease

Size: 124,000 s.f.Completion Date: July 2005Final Cost: $21.9 million

$7.8 million MEP

* North Addition part of a global renovation plan for the facility totaling 260,000 s.f. and costing $69 million.



Project Background

Lighting of Registration Space

Lighting of Main Lobby

Electrical Depth

Final Conclusions

Acknowledgements

Covered in Final Report

CM Breadth

Mechanical Breadth



Topics of Discussion



Electrical Depth

Final Conclusions

Acknowledgements




Architectural Features: Curved wooden south façade Frosted glass north façade Open to concourse/lobby on east and west walls Metal partitions separate each workstation

Design Goals: Accent architectural features Limit spill light into admin. Offices Provide ample task illuminance 30 fc horizontal (reading) 10 fc horizontal (corridor)



Lighting Depth – Registration Space

4” Open Downlights (13Q)2x2 Direct/Indirect Recessed Basket




Type Description Lamps CCT

A2' X 2' DIRECT/INDIRECT RECESSED, MICRO-PERFORATED MESH DIFFUSER, CENTER BASKET, WHITE FINISH, GRID CEILING

(2) 40WTT5 3500K

B14" OPEN DOWNLIGHT, VERTICAL LAMP, ALUMINUM REFLECTOR AND SELF-FLANGED TRIM

(1) CFL13Q 3500K

B24" OPEN DOWNLIGHT, VERTICAL LAMP, ALUMINUM REFLECTOR AND SELF-FLANGED TRIM

(1) CFL18TRT 3500K

B36" OPEN DOWNLIGHT, HORIZONTAL LAMP, ALUMINUM REFLECTOR AND SELF-FLANGED TRIM

(1) CFL26TRT 3500K

D1ADJUSTABLE TABLE LAMP, SILVER FINISH, BLUE GLASS REFLECTOR

(1) 35W GY6.35 3000K

F36" COLOR CHANGING LED COVE STRIP, COLOR ADJUSTING CAPABILITIES, VENTED PLASTIC HOUSING

INCLUDED1000-

10000K

Lighting Fixture Schedule

4” Open Downlights (18TRT)

Computer Analysis Results: (AGI32)




DescriptionPlane Height

(ft)Average

(fc)Maximum

(fc)Minimum

(fc)Max/Min

(fc)Pseudo-corridor 0 18 30 5 6.0

Desktops 2.5 36 *72 15 4.8* Max value correlates to point under task lamp

Calc GridsRegistration

FixtureBallast

Watts/FixtureQuantity Total

A 81 4 324B1 16 12 192B2 20 5 100D1 35 5 175F3 6.9 24 166

957

1.15

Power Density Calcs

Power Density (W/ft2):

Total Watts:

Allowable Power Density: 1.3 W/ft2

Final Solution:




Building Background



Electrical Depth

Final Conclusions

Acknowledgements




Architectural Features: Information Kiosk central to space Reading area in SW corner Art wall adjacent to entrance Wood-paneled north facade

Design Goals: Bring attention to info kiosk Accent architectural features Provide ample task illuminance at kiosk and reading space Accent back wall to limit depth of space 10 fc horizontal, 3 fc vertical (corridor) 50 fc horizontal (info kiosk) 30 fc horizontal (reading space)



Lighting Depth – Main Lobby






(1) CFL26TRT 3500K


(1) CFL42TRT 3500K

C12' RECESSED LINEAR WALLWASH, 2" APERTURE, BLACK METAL DIFFUSER, GRID CEILING

(1) F24T5HO 3500K


(1) F28T5 3500K

D24" RECESSED ADJUSTABLE SPOT, BLACK POWDER-COAT FINISH, WHITE TRIM

(1) 50W GY6.35 3000K

D3ADJUSTABLE WALLWASH SPOT, TRACK/CEILING MOUNTED, WHITE FINISH, INTEGRATED ELECTRONIC TRANSFORMER

(1) 75W GY6.35 3000K


INCLUDED1000-

10000K


INCLUDED1000-

10000K


6” LED Cove Fixture6” LED Cove Fixture In Column

6” Recessed Downlights (42TRT)Ceiling Mounted PhotosensorDimmed 6” Recessed Downlights (42TRT)






(1) CFL26TRT 3500K


(1) CFL42TRT 3500K


(1) F24T5HO 3500K


(1) F28T5 3500K

D24" RECESSED ADJUSTABLE SPOT, BLACK POWDER-COAT FINISH, WHITE TRIM

(1) 50W GY6.35 3000K

D3ADJUSTABLE WALLWASH SPOT, TRACK/CEILING MOUNTED, WHITE FINISH, INTEGRATED ELECTRONIC TRANSFORMER

(1) 75W GY6.35 3000K


INCLUDED1000-

10000K


INCLUDED1000-

10000K


Daylight Study Results:




No Controls

All DimSelective

DimNo

ControlsAll Dim

Selective Dim

No Controls

All DimSelective

Dim

979.2 967.7 927.9 443.7 371.1 297.3 443.7 366.5 300.5

991.4 939.8 868.0 624.2 456.0 301.3 605.9 460.7 333.4

1071.0 963.0 885.0 921.1 552.4 378.8 621.2 370.2 279.8Totals: 3041.6 2870.6 2680.9 1989.0 1379.5 977.4 1670.8 1197.5 913.7

Oct. 22 - Feb. 21 (Jan 21 analysis Feb. 22 - April 21 Aug. 22 - Oct. 21 (Mar. 21 analysis April 22 - Aug. 21 (May 21 analysis

Annual Energy Consumption - kW fixture shut-off below BF = .05

MonthOvercast Partly Cloudy Clear

KWh Cost KWh Cost KWh Cost474.3 $45.54 435.1 $41.78 390.8 $37.52306.0 $29.38 280.7 $26.95 252.3 $24.23146.9 $14.10 124.4 $11.94 102.2 $9.82569.2 $54.65 483.5 $46.42 398.8 $38.29385.6 $37.02 324.3 $31.14 264.4 $25.39192.8 $18.51 142.5 $13.68 116.5 $11.19664.0 $63.76 492.2 $47.26 403.4 $38.74642.6 $53.55 465.9 $38.83 376.0 $31.33664.0 $55.33 480.0 $40.00 386.5 $32.21449.8 $37.48 324.7 $27.06 261.2 $21.76183.6 $15.30 151.2 $12.60 119.9 $10.00550.8 $45.90 455.2 $37.93 363.6 $30.30449.8 $37.48 318.0 $26.50 253.7 $21.14153.0 $12.75 136.8 $11.40 119.8 $9.99459.0 $44.07 417.7 $40.10 372.0 $35.72474.3 $45.54 435.1 $41.78 390.8 $37.52

$610.38 $495.37 $415.14$115.01 $195.24

Annual Energy Savings fixture shut-off below BF=.05

.No Controls All Dim Selective Dim

JanuaryFebruary 1-21February 22-28MarchApril 1-21April 22-30MayJuneJulyAugust 1-21August 22-31September

Total Cost:Savings:

October 1-21October 22-31NovemberDecember

Number Dimming Ballasts

Payback Period

(yrs)34 17.723 7.834 17.723 7.1Selective Dim (no shut-off)

Payback Period

Type

All Dim (shut-off)Selective Dim (shut-off)All Dim (no shut-off)

Computer Analysis Results: (AGI32)




Allowable Power Density: 1.3 W/ft2 (lobby)1.2 W/ft2 (reading)

DescriptionPlane Height

(ft)Average

(fc)Maximum

(fc)Minimum

(fc)Max/Min

(fc)Circulation Floor 0 15 44 7.3 6.0

Reading Area 2.5 31 40 14 2.9Kiosk Desktop 2.5 61 100 35 2.9

Art Wall (vertical) - 34 64 8 8.0

Main Lobby

Calc Grids

FixtureBallast


B3 29 54 1566C1 27 11 297C2 63 9 567D2 50 21 1050D3 50 2 100F1 6.9 52 359F2 6.9 12 83

4022

0.84

Total Watts:


Circulation SpacesPower Density Calcs

FixtureBallast


B4 45 34 15301530

0.97

Power Density CalcsReading Space

Total Watts:


Final Solution:




Schematic:



Electrical Depth – Alternate 1

- denotes 480Y/277V panel


PanelMDP-N

PanelLP-1N

PanelLP-2N

PanelLP-3N

PanelLP-4N

PanelPP-1N

PanelPP-1N1

PanelHCK

PanelPP-2N

PanelPP-3N

PanelPP-4N

XFMRT-9

XFMRT-1

XFMRT-11

XFMRT-2

XFMRT-3

XFMRT-4

PanelMDP-N

PanelMDP-L

PanelPP-2N

XFMRT-L

PanelPP-2N

PanelPP-2N

PanelPP-2N

Existing Normal Power DistributionProposed Normal Power Distribution

$40,439.34$79,769.75$39,330.41

Alternate 1 Cost Impact

Total Costs:Costs:

Credits:

Equipment Type NameLoad

Connected (A)

Rating (A)

# Poles Spaces VoltageProtection

(A)Name Size Rating (A) Ground

Conduit Size

Length (ft) Name kVAPrimary Voltage

Secondary Voltage

Type Feeding Size (A) Phase Voltage

TRANSFORMER T-1 45 480∆ 208Y/120 DRYTRANSFORMER T-2 45 480∆ 208Y/120 DRYTRANSFORMER T-3 45 480∆ 208Y/120 DRYTRANSFORMER T-4 45 480∆ 208Y/120 DRYTRANSFORMER T-9 45 480∆ 208Y/120 DRYTRANSFORMER T-11 75 480∆ 208Y/120 DRY

FEEDER #5 (3) #4 85 #8 1" 14FEEDER #6 (4) #1/0 150 #6 1 1/2" 10FEEDER #11 (3) #4 85 #8 1" 15FEEDER #12 (4) #1/0 150 #6 1 1/2" 12FEEDER #17 (3) #4 85 #8 1" 22FEEDER #18 (4) #1/0 150 #6 1 1/2" 12FEEDER #25 (3) #4 85 #8 1" 15FEEDER #26 (4) #1/0 150 #6 1 1/2" 12FEEDER #32 (3) #4 85 #8 1" 20FEEDER #33 (4) #1/0 150 #6 1 1/2" 152FEEDER #34 (4) #4/0 230 #4 1 1/2" 88FEEDER #44 (3) #1 130 #8 1 1/2" 16

CIRCUIT BREAKER PP-1N 70 3 208Y/120CIRCUIT BREAKER PP-1N1 70 3 208Y/120CIRCUIT BREAKER HCK 100 3 208Y/120CIRCUIT BREAKER PP-2N 70 3 208Y/120CIRCUIT BREAKER PP-3N 70 3 208Y/120CIRCUIT BREAKER PP-4N 70 3 208Y/120

Circuit Breaker

Electrical Equipment - Deleted Normal System Components (Existing)

Panelboard Feeder TransformerFeeder Size VL-N Amperage Length Factor Vdrop % Vdrop

#1H (2) #1/0 277 140 16 0.127 0.283 0.10

#1L(3) #300

MCM120 215 20 0.0545 0.234 0.20

#1N #1/0 120 168 6 0.127 0.128 0.11#1N1 #3/0 120 160 152 0.0865 2.104 1.75#2N #1/0 120 148 12 0.127 0.226 0.19#3N #1/0 120 160 24 0.127 0.488 0.41#4N #1/0 120 32 36 0.127 0.146 0.12

#1HCK #4/0 120 56 88 0.0695 0.342 0.29

Voltage Drop Calculations - Alt. 1

Summary:




- Feeder upsized due to voltage drop

Equipment Type NameLoad

Connected (A)

Rating (A)



Conduit Size

Length (ft) Name kVAPrimary Voltage

Secondary Voltage

Type Feeding Size (A) Phase Voltage

TRANSFORMER T-L 225 480∆ 208Y/120 DRYPANEL MDP-L 644 800 3 24 208Y/120 800

FEEDER #1H2 SETS (3) #1/0

300 #6 1 1/2" 16

FEEDER #1L3 SETS (4) #300

855 #2 2 1/2" 20

FEEDER #1N (4) #1/0 150 #6 1 1/2" 6FEEDER #1N1 (4) #1/0 150 #6 1 1/2" 152FEEDER #2N (4) #1/0 150 #6 1 1/2" 12FEEDER #3N (4) #1/0 150 #6 1 1/2" 24FEEDER #4N (4) #1/0 150 #6 1 1/2" 36FEEDER #1HCK (4) #4/0 230 #4 1 1/2" 88

CIRCUIT BREAKER T-L 300 3 480Y/277CIRCUIT BREAKER MDP-L 800 3 208Y/120CIRCUIT BREAKER PP-1N 150 3 208Y/120CIRCUIT BREAKER PP-1N1 150 3 208Y/120CIRCUIT BREAKER HCK 200 3 208Y/120CIRCUIT BREAKER PP-2N 150 3 208Y/120CIRCUIT BREAKER PP-3N 150 3 208Y/120CIRCUIT BREAKER PP-4N 150 3 208Y/120

Circuit Breaker

Electrical Equipment - Added Normal System Components (Proposed)Panelboard Feeder Transformer

Proposed Standby Power DistributionExisting Standby Power Distribution

Schematic:





- denotes automatic transfer switch

SUBSTATION D

LIFE SAFETY BRANCH

ATS-1

ATS-2

ATS-3

EX. EMERGENCY GENERATOR SETS

CRITICAL

BRANCH

EQUIPMENT BRANCH

NORMAL

BRANCH

EMERGENCY BRANCHES

- denotes switchgear with secondary voltage 480Y/277V

SUBSTATION D

LIFE SAFETY BRANCH

ATS-1

ATS-2

ATS-3

ISOLATED EMERGENCY GENERATOR

CRITICAL

BRANCH

EQUIPMENT BRANCH

NORMAL

BRANCH

EMERGENCY BRANCHES

ATS-4

Summary:




- Feeder upsized due to voltage drop

Equipment Type

NameLoad

Connected (A)

Rating (A)



Conduit Size

Length (ft) NameRating

(A)Priority Voltage Phase Feeding Size (A) Phase Voltage

FEEDER #13 SETS (4) #400 MCM

1005 (3) #1/0 (3) 3 1/2" 500

FEEDER #2 (4) #1/0 150 #4 2" 500FEEDER #3 (4) #4 85 #6 1 1/4" 500

FEEDER #35(4) #350

MCM310 #1 3" 500

FEEDER #36 (3) #2/0 175 #6 2" 40

Electrical Cost Analysis - Deleted System Components (Existing)

Panelboard Feeder Automatic Transfer Switch Circuit Breaker

Feeder Size VL-N Amperage Length Factor Vdrop % Vdrop

ATS-1 #1 277 59 500 0.156 4.602 1.66ATS-2 #2 277 52.5 500 0.196 5.145 1.86ATS-3 #300 MCM 277 205 500 0.0545 5.586 2.02

ATS-4(3) #350

MCM277 241 500 0.047 5.664 2.04

EATS-1 #3 277 59 20 0.2495 0.294 0.11EATS-2 #3 277 52.5 35 0.2495 0.458 0.17EATS-3 #250 MCM 277 205 20 0.062 0.254 0.09

EATS-4(3) #300

MCM277 241 20 0.0545 0.263 0.09

EMDP(4) #400

MCM277 259 500 0.043 5.563 2.01

E6ATS(E) #2/0 277 50.5 40 0.104 0.210 0.08

E6ATS(N) #2/0 277 50.5 40 0.104 0.210 0.08

Voltage Drop Calculations - Alt. 2

NameLoad

Connected (A)

Rating (A)



Conduit Size

Length (ft) NameRating

(A)Priority Voltage Phase Feeding Size (A) Phase Voltage

PANEL EMDP 828 1200 3 24 480Y/277 1000FEEDER ATS-1 (4) #1 130 #8 1 1/2" 500FEEDER ATS-2 (4) #2 115 #8 1 1/4" 500

FEEDER ATS-3(4) #300

MCM285 #2 2 1/2" 500

FEEDER ATS-43 SETS (4) #300 MCM

855 (3) #2 (3) 2 1/2" 500

FEEDER EATS-1 (4) #3 100 #8 1 1/4" 20FEEDER EATS-2 (4) #3 100 #8 1 1/4" 35

FEEDER EATS-3(4) #250

MCM255 #2 2 1/2" 20

FEEDER EATS-43 SETS (4) #300 MCM

855 (3) #2 (3) 2 1/2" 20

FEEDER EMDP4 SETS (4) #400 MCM

1340 (3) #1/0 (3) 3 1/2" 500

FEEDER E6ATS (E) (3) #2/0 175 #6 2" 40FEEDER E6ATS (N) (3) #2/0 175 #6 2" 40

CIRCUIT BREAKER ATS-1 100 1 480Y/277 3CIRCUIT BREAKER ATS-2 100 2 480Y/277 3CIRCUIT BREAKER ATS-3 250 3 480Y/277 3CIRCUIT BREAKER ATS-4 800 4 480Y/277 3

PARALLELING SWITCHGEAR

EMDP 1200 3 480Y/277

Circuit Breaker

Electrical Cost Analysis - Added System Components (Proposed)Panelboard Feeder Automatic Transfer Switch

Equipment Type

$73,232.22$426,547.64$353,315.42

Alternate 2 Cost Impact

Total Costs:Costs:

Credits:

Building Background



Electrical Depth

Final Conclusions

Acknowledgements




Lighting Depth –

Registration Space – complimented architectural elements

while keeping fixtures minimally obtrusive to the space, provided

sufficient illuminance levels under ASHRAE 90.1 Power Density

recommendations

Main Lobby – utilized light as a means to call attention to

particular functions and artistic features within the space,

created a more inviting space by washing the back wall, provided

sufficient illuminance levels for various tasks under ASHRAE

90.1 Power Density recommendations

Electrical Depth – investigated cost impact of centralizing

normal branch step-down transformers, provided alternative

emergency back-up power generation system and assessed

the feasibility of proposed implementation



Final Conclusions

Professional Leach Wallace and Associates, Inc. Reese Engineering, Inc.

Faculty Dr. Richard Mistrick Dr. Martin Moeck Prof. M. Kevin Parfitt

Personal Family Friends/ Roommates Fellow AE Students



Acknowledgements



Questions?

Comments

Philip Mackey The Pennsylvania State University Architectural Engineering L/E Option

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