FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Phil Mackey
Holy Cross Hospital – North Addition
Philip Mackey
The Pennsylvania State University
Architectural Engineering
L/E Option
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Phil Mackey
Project Background
Location: Silver Spring, MD
Owner: Holy Cross Hospital
Architect: SmithGroup
Engineers: Leach Wallace Assoc. (MEP)
CM/GC: Bovis Lend Lease
Size: 124,000 s.f.
Completion Date: July 2005
Final 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.
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Topics of Discussion
 Lighting of Registration Space
 Lighting of Main Lobby
 Electrical Depth
 Final Conclusions
 Acknowledgements
Covered in Final Report
 CM Breadth
 Mechanical Breadth
Phil Mackey
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Topics of Discussion
 Lighting of Registration Space
 Lighting of Main Lobby
 Electrical Depth
 Final Conclusions
 Acknowledgements
Phil Mackey
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Registration Space
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)
Phil Mackey
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Phil Mackey
Lighting Depth – Registration Space
4”
(18TRT)
DownlightsRecessed
(13Q)
2x2Open
Direct/Indirect
Basket
Lighting Fixture Schedule
Type
A
B1
B2
B3
D1
F3
Description
2' X 2' DIRECT/INDIRECT RECESSED, MICROPERFORATED MESH DIFFUSER, CENTER
BASKET, WHITE FINISH, GRID CEILING
4" OPEN DOWNLIGHT, VERTICAL LAMP,
ALUMINUM REFLECTOR AND SELFFLANGED TRIM
4" OPEN DOWNLIGHT, VERTICAL LAMP,
ALUMINUM REFLECTOR AND SELFFLANGED TRIM
6" OPEN DOWNLIGHT, HORIZONTAL LAMP,
ALUMINUM REFLECTOR AND SELFFLANGED TRIM
ADJUSTABLE TABLE LAMP, SILVER FINISH,
BLUE GLASS REFLECTOR
6" COLOR CHANGING LED COVE STRIP,
COLOR ADJUSTING CAPABILITIES, VENTED
PLASTIC HOUSING
Lamps
CCT
(2) 40WTT5
3500K
(1) CFL13Q
3500K
(1) CFL18TRT
3500K
(1) CFL26TRT
3500K
(1) 35W GY6.35
3000K
INCLUDED
100010000K
HC
FINAL REPORT
Phil Mackey
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Registration Space
Computer Analysis Results: (AGI32)
Calc Grids
Registration
Plane Height
Average
(ft)
(fc)
Pseudo-corridor
0
18
Desktops
2.5
36
* Max value correlates to point under task lamp
Description
Power Density Calcs
Fixture
A
B1
B2
D1
F3
Ballast
Quantity
Watts/Fixture
81
4
16
12
20
5
35
5
6.9
24
Total Watts:
Power Density (W/ft2):
Total
324
192
100
175
166
957
1.15
Allowable Power Density: 1.3 W/ft2
Maximum
(fc)
30
*72
Minimum
(fc)
5
15
Max/Min
(fc)
6.0
4.8
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Registration Space
Final Solution:
Phil Mackey
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Topics of Discussion
 Building Background
 Lighting of Registration Space
 Lighting of Main Lobby
 Electrical Depth
 Final Conclusions
 Acknowledgements
Phil Mackey
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Main Lobby
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)
Phil Mackey
FINAL REPORT
HC
Phil Mackey
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Main Lobby
6” LED Cove
Cove Fixture
FixtureIn
Column
Lighting Fixture Schedule
Type
B3
B4
C1
C2
D2
D3
F1
F2
Description
6" OPEN DOWNLIGHT, HORIZONTAL LAMP,
ALUMINUM REFLECTOR AND SELFFLANGED TRIM
6" OPEN DOWNLIGHT, HORIZONTAL LAMP,
ALUMINUM REFLECTOR AND SELFFLANGED TRIM
2' RECESSED LINEAR WALLWASH, 2"
APERTURE, BLACK METAL DIFFUSER, GRID
CEILING
4' RECESSED LINEAR WALLWASH, 2"
APERTURE, BLACK METAL DIFFUSER, GRID
CEILING
4" RECESSED ADJUSTABLE SPOT, BLACK
POWDER-COAT FINISH, WHITE TRIM
ADJUSTABLE WALLWASH SPOT,
TRACK/CEILING MOUNTED, WHITE FINISH,
INTEGRATED ELECTRONIC TRANSFORMER
6" COLOR CHANGING LED COVE STRIP,
COLOR ADJUSTING CAPABILITIES, VENTED
PLASTIC HOUSING
6" COLOR CHANGING LED COVE STRIP,
COLOR ADJUSTING CAPABILITIES, VENTED
PLASTIC HOUSING
Lamps
CCT
(1) CFL26TRT
3500K
(1) CFL42TRT
3500K
(1) F24T5HO
3500K
(1) F28T5
3500K
(1) 50W GY6.35
3000K
(1) 75W GY6.35
3000K
INCLUDED
100010000K
INCLUDED
100010000K
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Phil Mackey
Lighting Depth – Main Lobby
Dimmed
6”
Ceiling
Recessed
Mounted
6” Recessed
Downlights
Photosensor
Downlights
(42TRT)
(42TRT)
Lighting Fixture Schedule
Type
B3
B4
C1
C2
D2
D3
F1
F2
Description
6" OPEN DOWNLIGHT, HORIZONTAL LAMP,
ALUMINUM REFLECTOR AND SELFFLANGED TRIM
6" OPEN DOWNLIGHT, HORIZONTAL LAMP,
ALUMINUM REFLECTOR AND SELFFLANGED TRIM
2' RECESSED LINEAR WALLWASH, 2"
APERTURE, BLACK METAL DIFFUSER, GRID
CEILING
4' RECESSED LINEAR WALLWASH, 2"
APERTURE, BLACK METAL DIFFUSER, GRID
CEILING
4" RECESSED ADJUSTABLE SPOT, BLACK
POWDER-COAT FINISH, WHITE TRIM
ADJUSTABLE WALLWASH SPOT,
TRACK/CEILING MOUNTED, WHITE FINISH,
INTEGRATED ELECTRONIC TRANSFORMER
6" COLOR CHANGING LED COVE STRIP,
COLOR ADJUSTING CAPABILITIES, VENTED
PLASTIC HOUSING
6" COLOR CHANGING LED COVE STRIP,
COLOR ADJUSTING CAPABILITIES, VENTED
PLASTIC HOUSING
Lamps
CCT
(1) CFL26TRT
3500K
(1) CFL42TRT
3500K
(1) F24T5HO
3500K
(1) F28T5
3500K
(1) 50W GY6.35
3000K
(1) 75W GY6.35
3000K
INCLUDED
100010000K
INCLUDED
100010000K
FINAL REPORT
HC
Phil Mackey
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Main Lobby
Daylight Study Results:
Annual Energy Savings
fixture shut-off below BF=.05
Annual
Energy
- kW
No ControlsConsumption
All Dim
Selective
Dim
.
KWh Payback
Cost
KWh
Cost
KWh
Cost
Period
fixture
shut-off
below
BF
=
.05
474.3
$45.54
435.1
$41.78
390.8
$37.52
January
Number
Payback
Cloudy
February 1-21Overcast 306.0Type$29.38 Partly
280.7
$26.95
Dimming Selective
Period
Month
No22-28
Selective$14.10
No
February
124.4
All Dim 146.9
All Dim $11.94
Ballasts
(yrs)
Controls
Dim $54.65
Controls 483.5
Dim
March
569.2
$46.42
All Dim
(shut-off)
34
17.7
Oct. 22 - Feb. 21
April 1-21
385.6
$37.02
324.3
$31.14
Selective
Dim (shut-off)
23
7.8
(Jan 21 analysis April 22-30
979.2
967.7
927.9
443.7 142.5
371.1$13.68
297.3
All Dim
(no
shut-off)
34
17.7
192.8
$18.51
Feb. 22 - April 21
Selective
Dim (no
shut-off) 492.2
23
7.1
May
664.0
$63.76
$47.26
Aug. 22 - Oct. 21
June
642.6
$53.55
465.9
$38.83
(Mar. 21 analysisJuly
991.4
939.8 664.0
868.0$55.33
624.2 480.0
456.0$40.00
301.3
April 22 - Aug. 21
August 1-21
449.8
$37.48
324.7
$27.06
(May 21 analysisAugust1071.0
963.0
885.0
921.1
552.4
378.8
22-31
183.6
$15.30
151.2
$12.60
Totals:September
3041.6
2870.6 550.8
2680.9$45.90
1989.0 455.2
1379.5$37.93
977.4
October 1-21
449.8
$37.48
318.0
$26.50
October 22-31
153.0
$12.75
136.8
$11.40
November
459.0
$44.07
417.7
$40.10
December
474.3
$45.54
435.1
$41.78
Total Cost: $610.38
$495.37
Savings:
$115.01
Clear
252.3
$24.23
No
Selective
102.2
$9.82
All Dim
Controls
Dim
398.8
$38.29
264.4
$25.39
443.7$11.19
366.5
300.5
116.5
403.4
$38.74
376.0
$31.33
605.9
460.7
333.4
386.5
$32.21
261.2
$21.76
621.2
370.2
279.8
119.9
$10.00
1670.8$30.30
1197.5
913.7
363.6
253.7
$21.14
119.8
$9.99
372.0
$35.72
390.8
$37.52
$415.14
$195.24
HC
FINAL REPORT
Phil Mackey
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Main Lobby
Computer Analysis Results: (AGI32)
Calc Grids
Main Lobby
Description
Circulation Floor
Reading Area
Kiosk Desktop
Art Wall (vertical)
Plane Height
(ft)
0
2.5
2.5
-
Average
(fc)
15
31
61
34
Maximum
(fc)
44
40
100
64
Power Density Calcs
Power Density Calcs
Circulation Spaces
Reading Space
Fixture
B3
C1
C2
D2
D3
F1
F2
Ballast
Quantity
Watts/Fixture
29
54
27
11
63
9
50
21
50
2
6.9
52
6.9
12
Total Watts:
Power Density (W/ft2):
Total
Fixture
1566
297
567
1050
100
359
83
4022
0.84
B4
Ballast
Quantity
Watts/Fixture
45
34
Total Watts:
Power Density (W/ft2):
Allowable Power Density: 1.3 W/ft2 (lobby)
1.2 W/ft2 (reading)
Total
1530
1530
0.97
Minimum
(fc)
7.3
14
35
8
Max/Min
(fc)
6.0
2.9
2.9
8.0
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Lighting Depth – Main Lobby
Final Solution:
Phil Mackey
HC
FINAL REPORT
Phil Mackey
HOLY CROSS HOSPITAL – NORTH ADDITION
Electrical Depth – Alternate 1
Schematic:
Existing Normal
Proposed
NormalPower
PowerDistribution
Distribution
- denotes 480Y/277V panel
- denotes 208Y/120V panel
Panel
Panel
MDP-N
MDP-N
Panel
LP-1N
XFMR
T-1
Panel
PP-1N
XFMR
T-9
Panel
PP-2N
Panel
PP-1N1
XFMR
T-11
Panel
PP-2N
Panel
HCK
XFMR
T-L
Panel
LP-2N
Panel
MDP-L
Panel
LP-3N
Panel
LP-4N
XFMR
T-2
Panel
PP-2N
Panel
PP-2N
XFMR
T-3
Panel
PP-2N
Panel
PP-3N
XFMR
T-4
Panel
PP-4N
HC
FINAL REPORT
HOLY CROSS HOSPITAL – NORTH ADDITION
Phil Mackey
Electrical Depth – Alternate 1
Summary:
- Feeder upsized due to voltage drop
Electrical Equipment
Normal
System Components
(Existing)
Voltage-- Deleted
DropNormal
Calculations
- Alt. 1 (Proposed)
Electrical Equipment
Added
System Components
Feeder
Panelboard
Panelboard
Equipment Type
TRANSFORMER
TRANSFORMER
PANEL
TRANSFORMER
FEEDER
TRANSFORMER
TRANSFORMER
FEEDER
TRANSFORMER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
CIRCUIT
BREAKER
FEEDER
CIRCUIT
BREAKER
FEEDER
CIRCUIT
BREAKER
FEEDER
CIRCUIT
BREAKER
FEEDER
CIRCUIT
BREAKER
FEEDER
CIRCUIT BREAKER
CIRCUIT
CIRCUIT BREAKER
BREAKER
CIRCUIT
CIRCUIT BREAKER
BREAKER
CIRCUIT BREAKER
CIRCUIT BREAKER
CIRCUIT BREAKER
CIRCUIT BREAKER
Name
Name
MDP-L
Load
Load
Rating
Rating
Connected
Connected
(A)
(A)
(A)
(A)
644
800
Size
VL-N
Amperage
Length
Factor
Vdrop
% Vdrop
Feeder
Transformer
Feeder
Transformer
Protection
Conduit
Primary
Secondary
Protection
Conduit
Primary
Secondary
(2)Voltage
#1/0
277
16 Impact
0.127
0.10
Alternate
##1H
Name
Size
Rating
(A)
Ground
Length
(ft)
kVA
# Poles
Poles Spaces
Spaces
Voltage
Name
Size 140
Rating1
(A) Cost
Ground
Length
(ft) Name
Name 0.283
kVA
(A)
Size
Voltage
(A)
Size
Voltage Voltage
Voltage
(3) #300
45
480∆
208Y/120
225
480∆ 0.20
208Y/120
#1L
120
215
20
0.0545T-1T-L 0.234
T-2
45
480∆
208Y/120
3
24 MCM
208Y/120
800
T-3
45
480∆
208Y/120
2 SETS
Credits:
$40,439.34
#1H
300
#6
1 1/2"
16
45
480∆
208Y/120
#1N
#1/0
120
168
6
0.127 T-4 0.128
0.11
(3) #1/0
T-9
45
480∆
208Y/120
3 SETS
855
#2 152 2 1/2"
20
#1N1
#3/0
120#1LCosts:
160
0.0865
2.104
1.75
T-11
75
480∆
208Y/120
(4) #300
$79,769.75
#5
(3)
85
#8
146
#1N
(4) #4
#1/0
150
#6
11"1/2"
#2N
#1/0
120#1N1
148
12
0.127
0.226
0.19
#6
(4)
150
#6
1 11/2"
10
(4)#1/0
#1/0
150
#6
1/2"
152
Total
Costs:
$39,330.41
(3)
#4
85
#8
1512
#2N
(4)
#1/0
150
#6 24 11"1/2"
#3N
#1/0
120#11
160
0.127
0.488
0.41
#12
(4)
#1/0
150
#6
1
1/2"
12
#3N
(4) #1/0
150
#6
1 1/2"
24
(3)
#8
2236
#4N
(4) #4
#1/032 85
150
#6 36 11"1/2"
#4N
#1/0
120#17
0.127
0.146
0.12
#18
(4)
150
#6
1 11/2"
1288
#1HCK
(4)#1/0
#4/0
230
#4
1/2"
#1HCK
#4/0
120#25
0.0695
0.342
0.29
(3) #4 56 85
#8 88 1"
15
#26
#32
#33
#34
#44
(4) #1/0
(3) #4
(4) #1/0
(4) #4/0
(3) #1
150
85
150
230
130
#6
#8
#6
#4
#8
1 1/2"
1"
1 1/2"
1 1/2"
1 1/2"
12
20
152
88
16
CircuitBreaker
Breaker
Circuit
Type
Type
Feeding
(A)(A) Phase
Feeding Size
Size
Phase Voltage
Voltage
DRY
DRY
DRY
DRY
DRY
DRY
DRY
T-L
MDP-L
PP-1N
PP-1N1
HCK
PP-2N
PP-1N
PP-3N
PP-1N1
PP-4N
HCK
PP-2N
PP-3N
PP-4N
300
800
150
150
200
150
70150
70150
100
70
70
70
3
3
3
3
3
3
3 3
3 3
3
3
3
3
480Y/277
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
208Y/120
HC
FINAL REPORT
HOLY CROSS HOSPITAL – NORTH ADDITION
Phil Mackey
Electrical Depth – Alternate 2
Schematic:
ProposedStandby
Existing
StandbyPower
PowerDistribution
Distribution
- denotes 480Y/277V panel
- denotes automatic transfer switch
EX. EMERGENCY
ISOLATED
EMERGENCY
GENERATOR
SETS
GENERATOR
SUBSTATION
SUBSTATIONDD
- denotes switchgear with
secondary voltage 480Y/277V
ATS-1
ATS-1
ATS-3
ATS-2
ATS-4
NORMAL
BRANCH
LIFE
SAFETY
BRANCH
CRITICAL
BRANCH
EQUIPMENT
BRANCH
EMERGENCY BRANCHES
NORMAL
BRANCH
HC
FINAL REPORT
Phil Mackey
HOLY CROSS HOSPITAL – NORTH ADDITION
Electrical Depth – Alternate 2
Summary:
- Feeder upsized due to voltage drop
Drop
Calculations
- Alt. 2(Proposed)
ElectricalVoltage
Cost Analysis
- Added
System Components
Panelboard
Equipment Type
Name
PANEL
FEEDER
FEEDER
EMDP
Load
Connected
(A)
828
FEEDER
Equipment Type
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
FEEDER
CIRCUIT BREAKER
CIRCUIT BREAKER
CIRCUIT BREAKER
CIRCUIT BREAKER
PARALLELING
SWITCHGEAR
Name
Load
Connected
(A)
Rating
(A)
Feeder
# Poles
Spaces
Size
Voltage
VL-N
Protection
(A)
Name
Feeder
Amperage
Size
Rating (A)
Length
Ground
Conduit
Size
Automatic Transfer Switch
Factor
Length (ft)
Vdrop
Name
Rating
(A)
Circuit Breaker
% Vdrop
Priority
Voltage
Phase
ATS-1
#1
277
59
500
0.156
4.602
1.66
3
24
480Y/277
1000
Electrical
Cost
Analysis
Deleted
System
Components
(Existing)
ATS-1
(4)
#1
130
#8
1
1/2"
500
ATS-2
#2
277
52.5
500
0.196
5.145
1.86
ATS-2
(4) #2
115
#8
1 1/4"
500
ATS-3 #300 MCM
277
205
500
0.0545
5.586
2.02
(4) #300
ATS-3
285
#2
2 1/2"
500
MCM
Panelboard
Automatic Transfer Switch
Alternate
2Feeder
Cost
Impact
(3) #350
3 SETS (4)
ATS-4
855
(3) #2
2 1/2" 0.047
500
241
500(3)
5.664
2.04
Rating ATS-4
Protection277
Conduit
Rating
MCM
# Poles
Spaces MCM
Voltage
Name #300
Size
Rating (A) Ground
Length (ft) Name
Priority
Voltage
Phase
(A)
(A)
(A)
EATS-1
(4) #3
100
#8
1Size
1/4"
20
EATS-2
(4)
#3
100
#8
1
1/4"
35
3 SETS (4)
EATS-1
#3
277
59 1005 (3) #1/0
20 (3) 3$73,232.22
0.294
0.11
#1
1/2" 0.2495
500
Credits:
(4) #250
EATS-3 #400 MCM
#2
2 1/2"
20
MCM
EATS-2
#3
277
52.5 255
0.2495
0.458
0.17
#2
(4)
#1/0
150
#4 35
2"
500
3 SETS
#3
(4) #4(4)
85
1$426,547.64
1/4"
500
EATS-4
855
(3)#6#2
(3)
2 1/2"
20
Costs:
EATS-3 #250 MCM
277
205
20
0.062
0.254
0.09
#300
MCM
(4) #350
#35
310
#1
3"
500
4 SETS
MCM (4)
EMDP
1340
(3) #1/0 (3) 3 1/2"
500
(3) #300
#400
MCM
Total
#36 Costs:
(3) #2/0
#6 20
2"
40
$353,315.42
EATS-4
277
241 175
0.0545
0.263
0.09
E6ATS (E) (3) #2/0
175
#6
2"
40
MCM
E6ATS (N) (3) #2/0
175
#6
2"
40
ATS-1
100
1
480Y/277
3
(4) #400
100
2
480Y/277
3
EMDP
277
259
500
0.043 ATS-2 5.563
2.01
ATS-3
250
3
480Y/277
3
MCM
Feeding
Size (A)
Phase
Voltage
1200
ATS-4
800
4
480Y/277
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
Circuit Breaker
Feeding
Size (A)
Phase
Voltage
EMDP
1200
3
480Y/277
3
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Topics of Discussion
 Building Background
 Lighting of Registration Space
 Lighting of Main Lobby
 Electrical Depth
 Final Conclusions
 Acknowledgements
Phil Mackey
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Phil Mackey
Final Conclusions
 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 REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Acknowledgements
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
Phil Mackey
FINAL REPORT
HC
HOLY CROSS HOSPITAL – NORTH ADDITION
Questions?
Comments
Phil Mackey