West Village Commons
Patrick Morgan
Lighting/Electrical
April 13, 2011
Scope of Work
 Lighting Redesign





Grand Stair and Lobby
HRL Suite
Multi-Purpose Space
Roof Terrace
Study Lounge
 Electrical Depths
 DC Power Distribution
 SKM Analysis
Rendering Courtesy GWWO Inc.
 Daylighting Analysis (MAE)
 Thermal Load Analysis (Breadth 1)
 Structural Analysis (Breadth 2)
Presentation Overview
 Project Overview
 Towson Vision
 Design Concept
 Study Lounge




Lighting Redesign
Connections
Daylighting (MAE)
Thermal Load Analysis (Breadth)
 HRL Suite
 Lighting Redesign
 DC Power Distribution (Elec. Depth)
 Summary
Overview
Project Overview
 Location: Towson, Maryland
 Size: 86,339 sq. ft.
 Main Function:
University Commons Building
 Levels Above Grade: 4
 Cost: $30,528,000
 Construction Dates:
July 15, 2009 to May 31, 2011
 Minimum Silver LEED Rating
Overview
Towson Vision
Design Concept
Study Lounge
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
• DC Power
Summary
Rendering Courtesy GWWO Inc.
N
Overview
Project Team

Architect: GWWO Inc./Architects

Civil Engineer: Site Resources

Construction Manager: Barton Malow

Food Service Consultant: Ricca Newmark Design

Geotechnical Engineer: Schnabel Engineers

Interior Design Consultant: PLDA

Landscape Architect: Maham Rykiel Associates

Lighting Designer: Bruce Dunlop Lighting Design, LCC.

MEP Engineers: James Posey Associates, Inc.

Structural Engineer: Restl Designers
N
Vision
Towson Vision
Master Plan Guiding Principles:
• Define Clear Edges and Centers
• Develop a Sustainable Campus
Student Life:
• Increase on-campus housing and physical connections to create a more “walk
Paca House
Overview
Towson Vision
Design Concept
Study Lounge
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
• DC Power
Summary
able” and active campus.
West Village Residence Area
N
• Provide more outdoor recreation and green space
Towson Run Apartments
Concept
Architectural Features
 Glass Façade
 Clear, Fritted, Translucent
 Building Texture
 Stone, Wood
 Cloud Ceiling
Design Concept
Overview
Towson Vision
Design Concept
Study Lounge
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
• DC Power
Summary
 Signature Space for Students
 Create the “Wow” factor from the outside
 Private and Active Environment
 Give students a feeling they will have
nowhere else
 Connect with the Architectural Features
Daylighting Between the Clouds
Concept
Architectural Features
 Glass Façade
 Clear, Fritted, Translucent
 Building Texture
 Stone, Wood
 Cloud Ceiling
Design Concept
 Signature Space for Students
 Create the “Wow” factor from the outside
 Private and Active Environment
 Give students a feeling they will have
nowhere else
 Connect with the Architectural Features
Starlight Through the Clouds
Lounge
Location
Study Lounge
Space Layout
 Features
 Continual Views of the Outdoors
 Cloud Ceiling
 Textured Surfaces
 Connections
Daytime Rendering
Courtesy GWWO Inc./Architects
 Mimics the Lobby
 Pre-function for Multi-Purpose space
 Main Access to Roof Terrace
Level 3/4
Overview
Towson Vision
Design Concept
Study Lounge
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
• DC Power
Summary
Third Floor
Fourth Floor
Lounge
Design Criteria
 Very Important
Luminaire Selection
Layout
S2: Direct Louvered Pendant
 Daylight Integration
 Psychological Feeling: Public vs. Private
 Appearance of the Space
S3: Fluorescent Wall Graze
 Modeling of Faces and Objects
 Lighting Power Density: 1.2 W/ sq. ft.
 Important
L1: Recessed CFL Downlight
 Horizontal Illuminance – 30 fc, 10 fc
 Controls
L2: Surface Mounted CFL
Downlight
Third Floor
Fourth Floor
Lounge
Design Criteria
Luminaire Selection
Layout
 Very Important
 Daylight Integration
S1: 2’ RGB LED
 Psychological Feeling: Public vs. Private
 Appearance of the Space
 Modeling of Faces and Objects
 Lighting Power Density: 1.2 W/ sq. ft.
 Important
L1: 2.5” Recessed LED
Downlight
 Horizontal Illuminance – 30 fc, 10 fc
 Controls
Third Floor
Fourth Floor
Lounge
Design Performance
 General Seating: 29.12 fc
 Balcony: 26.82 fc
 Under Balcony: 25.16 fc
 Actual LPD: 1.20 W/sq. ft. (with
Illuminance at the Work plane:
General Seating
Black: 35 fc, Blue: 30 fc, Green: 25 fc, Red: 20 fc
decorative)
Under Balcony
Grazed Wall
Lounge
Design Performance
 General Seating: 29.12 fc
 Balcony: 26.82 fc
 Under Balcony: 25.16 fc
 Actual LPD: 1.20 W/sq. ft. (with
Illuminance at the Work plane:
General Seating
Black: 35 fc, Blue: 30 fc, Green: 25 fc, Red: 20 fc
decorative)
Exterior
Cloud Ceiling with star concept
Lounge
Grand Stair
Northeast Perspective
Roof Terrace
Southwest Perspective
Exterior
Exterior View from Entrance
Lounge
Grand Stair
Northeast Perspective
Roof Terrace
Southwest Perspective
Exterior
Southeast Perspective from Quad
Daylight
Daylighting Analysis (MAE)
Glazing
Type
SHGC
GL-3
Clear
0.38
70%
11%
 Utilize Glass Façade
GL-4
Translucent
0.37
60%
12%
 Glazing Change to Preserve Views
GL-5
Frit
0.30
44%
22%
 Shading System to Reduce Direct Glare
Overview
Towson Vision
Design Concept
Study Lounge
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
• DC Power
Summary
Transmittance Reflectance
and Control Light Levels
Original Glazing Properties
 Dim Under Balcony and Balcony
Lighting
North
Facade
East Facade
West
Facade
Daylight
Daylighting Analysis (MAE)
 Utilize Glass Façade
 Glazing Change to Preserve Views
Overcast
Clear Sky
Main Study Area
244.74
349.94
Covered Area
83.12
137.89
Balcony
92.44
220.63
Average Work-plane Illuminance
 Shading System to Reduce Direct Glare
and Control Light Levels
Profile Angles
Orange: 10 ft., Purple: Halfway, Red: Across the Space
 Dim Under Balcony and Balcony
Overcast
Clear Sky
Main Study Area
187
254
Covered Area
27.9
67.3
Balcony
56.4
136
Lighting
Minimum Work-plane Illuminance
Daylight
Daylighting Analysis (MAE)
 Utilize Glass Façade
 Glazing Change to Preserve Views
 Shading System to Reduce Direct Glare
Tv = 9%, Openness = 3%
and Control Light Levels
N
Continuous Daylight Autonomy
N
 Dim Under Balcony and Balcony
Lighting
Daylight Autonomy at 2000 lux
Daylight
Daylighting Analysis (MAE)
 Utilize Glass Façade
 Glazing Change to Preserve Views
 Shading System to Reduce Direct Glare
and Control Light Levels
N
Critical Point
 Dim Under Balcony and Balcony
Lighting
January
February
March
April
May
June
July
August
September
October
November
December
Base
Optimal Algorithm
4.14
3.25
3.21
113.46
76.36
75.16
97.52
57.3
56.78
121.43
66.37
63.17
99.35
52.1
49.59
54.81
23.34
21.43
54.81
23.92
21.39
13.27
6.87
6.23
121.74
70.66
68.58
125.57
77.58
77.36
109.63
78.75
79.07
85.09
63.56
64.72
1000.86
600.1
586.74
Dimming Savings Level (kWh)
Signal
0.92
38.3
70.74
58.25
49.75
33.37
33.41
7.04
53.16
48.21
30.56
20.37
414.12
Thermal
Thermal Load Analysis (Mech. Breadth)
Load Results
600000
 ASHRAE Radiant Time Series Method
500000
 Based on Monthly Design Averages
 Profile Angles
 Applies SHGC correction factors
BTU/hr.
400000
300000
200000
 Reference Glass
100000
 Accounts for shading in thermal loading
IAC Factor Chart
 Radiative Reduction: 100%, 46%
0
Original
No Shading
Shading
Overview
Towson Vision
Design Concept
Study Lounge
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
Cooling
Load
DC Power
Solar• Load
Summary
HRL Suite
Location and Floor Plan
HRL Suite
Details
 Features
 Open Office
 Perimeter Offices
 Completely Interior Space
 Functions
Partitions
 Operates 9 am to 5 pm
 Used by permanent and student employees
Level 3
Layout
Perimeter Glazing
Overview
Towson Vision
Design Concept
Study Lounge
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
• DC Power
Summary
HRL Suite
Design Criteria
Luminaire Selection
 Very Important
 Glare, Direct and Reflected
F1: Direct/Indirect Pendant
 Source/Task/Eye Geometry
 Power Density: 1.1 W/ sq. ft.
 Important
F2: Recessed LED Downlight
 Horizontal Illuminance – 50 fc
 Psychological Impression
F3: 6” LED Pendant, School
Color
Layout
HRL Suite
Design Performance
 Actual LPD: 1.23 W/ sq. ft.
 Desk Illuminance : 45 to 55 fc
 Work Counter Illuminance: 47 fc
Desk Illuminance
Illuminance at the work plane
Black: 55 fc, Blue: 50 fc,
Green: 45 fc, Red: 40 fc
Office Overview
Reception Counter
 Reception Counter Illuminance: 34 fc
Overview
North Section
Electrical
DC Power Distribution
 Design for Direct Coupling
PV Array
Voltage
Regulator
Power
Server
 Reduced Power Density: 0.93 W/ sq. ft.
 Work plane Illuminance: 35 fc
 0.75 Ballast Factor for two lamp
 Smaller Required PV Array
 Integrated into Ceiling Grid
EMerge Diagram
Integrated Ceiling Grid
Overview
Towson Vision
Design Concept
Ceiling
Study
Lounge
Distribution
• Lighting
• Daylighting
• Thermal
HRL Suite
• Lighting
• DC Power
Summary
Electrical
DC Power Distribution
 Design for Direct Coupling
 Reduced Power Density: 0.93 W/ sq. ft.
 Work plane Illuminance: 35 fc
 0.75 Ballast Factor for two lamp
 Smaller Required PV Array
DC Power Consumption
 Integrated into Ceiling Grid
AC Power Consumption
Electrical
DC Power Distribution
 Design for Direct Coupling
 Reduced Power Density: 0.93 W/ sq. ft.
 Work plane Illuminance: 35 fc
 0.75 Ballast Factor for two lamp
 Smaller Required PV Array
 Integrated into Ceiling Grid
DC Array Sizing
AC Array Evaluation
Summary
Lighting:
•
The spaces draw students in while providing a relaxing and open experience
and meeting IESNA and ASHRAE standards.
Daylighting
•
The Study Lounge offers quality daylight levels throughout the day.
Thermal Analysis
•
The additional shades reduce the solar load and overall cooling load
of the study lounge.
Electrical
•
Direct Coupling is more effective then inverter based systems.
Acknowledgments
AE Advisors and Professors
James Posey Associates
GWWO Inc./Architects
Barton Malow
AE Friends and Family
Questions?