Benjamin Mitten

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center for the arts
towson university
Benjamin Mitten
Architectural Engineering
Lighting/Electrical
Spring 2005
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• Presentation Outline
• Introduction To The Building
• Lighting Depth
• - Paint Studio
• - Lobby
• Controls Depth
• Mechanical Breadth

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• Presentation Outline
• Introduction To The Building
• Lighting Depth
• - Paint Studio
• - Lobby
• Controls Depth
• Mechanical Breadth

4

• Introduction To The Building
• Location

Center for the Arts Towson University 7815 Osler
Drive Towson, MD 21252
Paint Studio Lobby Controls Mechanical
Conclusion
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• General Information
• - Renovation of Existing Building
• - 122,000 sf addition onto the existing 166,000
  sf building.
• - Total project budget of 42 million
• - Major Project Team
• -Owner Towson University
• -Architects Design Collective, Inc.
• Wilson Butler Lodge
• - Construction Manager Gilbane
• - MEP Mueller Associates, Inc.
• - Structural Delon Hampton Assoc.
• - Occupants of the Building
• - Dance Program
• - Art Program
• - Music Program
• - Theatre Program

Intro Paint Studio Lobby Controls
Mechanical Conclusion
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• Building Layout

Intro Paint Studio Lobby Controls
Mechanical Conclusion
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• Presentation Outline
• Introduction To The Building
• Lighting Depth
• - Paint Studio
• - Lobby
• Controls Depth
• Mechanical Breadth

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• Paint Studio
• Location 4th Floor of the North-East Section
  of the building.
• Space Characteristics
• - Approximately 2100 sf.
• - North wall consists of a glazed curtain wall
• - Exposed ceiling at a height of 14-6
• - Floor Easels in the space

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Mechanical Conclusion
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• Paint Studio
• Tasks
• - Painting- Objects, Figures, Human Figures,
  etc.
• - Pin- ups/ Presentations
• - Film Presentations
• Design Criteria
• - Provide light for correct color appearance
  and contrast
• - Lighting for facial modeling and objects
• - Distribution of light on easels
• - Illuminance of 50 fc horizontally and 30 fc
  vertically
• - Achieve a clear appearance
• - Power Density of 1.2 Watts/SF

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Mechanical Conclusion
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• Paint Studio
• Solution
• 54 Watt Indirect Fluorescent Pendent Fixture
  with electrical track on underside
• 90 Watt Spot light on track

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Mechanical Conclusion
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• Paint Studio
• The power density is above the recommended
  ASHRAE/IES Standard 90.1 value of 1.2 Watts/
  Square Foot. Redesigning would be necessary to
  reduce this in the space.

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Paint Studio Renderings
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Mechanical Conclusion
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• Presentation Outline
• Introduction To The Building
• Lighting Depth
• - Paint Studio
• - Lobby
• Controls Depth
• Mechanical Breadth
• Conclusion

14

• Lobby
• Location 3rd Floor, center of the building

Space Characteristics - Approximately 4800
sf. - Cantilevered awnings over the entrances
of four major spaces Concert Hall, Main Stage
Theatre, Recital Hall, Studio Theatre -
Finished Stone Floor
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Mechanical Conclusion
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• Lobby
• Tasks
• - Circulation space provides access to
  the Concert Hall, Recital Hall, Main Stage
  Theatre, and the Studio Theatre. It also
  services the corridors to areas such as the Fine
  Arts Box Office and Painting Galleries
• - Social Gathering
• - Reading
• Design Criteria
• - Most important space in the building
• - Provide a visibly pleasing atmosphere
• - Achieve a relaxed, spacious, and public
  appearance
• - Draw people towards areas of interest
• - Power Density of 1.6 Watts/ SF

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Mechanical Conclusion
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• Lobby
• Solution
• 32 Watt Fluorescent Strip light for cove
  lighting
• 42 Watt Compact Fluorescent Downlight
• 18 Watt Compact Fluorescent Downlight
• Neon Light Tubes for accent
• Provide different scenes for different events

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Mechanical Conclusion
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• Lobby
• The power density is below the recommended
  ASHRAE/IES Standard 90.1 value of 1.6 Watts/
  Square Foot.

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Mechanical Conclusion
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• Lobby
• Renderings

Concert Hall Scene
Main Stage Theatre Scene
Recital Hall Scene
Studio Theatre Scene
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Mechanical Conclusion
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• Lobby
• Other scenes provided
• - Egress scene
• IES Illumination Recommendations
• Lobby 10 footcandles
• Illuminance values for scenes
• Egress scene- 9.9 fc OK
• All other scenes- all were around 28 fc OK

Intro Paint Studio Lobby Controls
Mechanical Conclusion
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• Presentation Outline
• Introduction To The Building
• Lighting Depth
• - Paint Studio
• - Lobby
• Controls Depth
• Mechanical Breadth
• Conclusion

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• Controls
• Most of the energy consumption in a commercial
  building comes from lighting.

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Mechanical Conclusion
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• Controls
• Analyze an advanced digital control system on
  the 3rd floor of the building
• Assumptions made in-order to perform the
  analysis
• - System will examine the Linear Fluorescent
  Fixtures only
• - The system will cause a 10 reduction in
  lighting energy (expected to be more than
  assumed value)
• - Compact Fluorescent fixtures will be
  connected to the system at a later time ( CF
  ballasts are not compatible at this time)

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Mechanical Conclusion
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• Controls
• Type of controls used in spaces
• - Photocells (Daylight Control)
• - Automated Occupant Control
• - Occupancy Sensors (Manual Dimming and
  Shut-off)
• - Single Standard Switch (with indicating light)

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Mechanical Conclusion
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• Controls
• Use of the system
• - Up to 64 Ballasts on a power supply
• - Each ballast is digitally programmed to
  respond/speak to certain control sensors.
  Photocells, etc.
• - Reprogramming an entire floor is easy and
  does not need to be rewired. (Extremely
  practical for open office use where
  reconfiguration of the space may occur)
• - Each ballast in the power supply loop can
  respond to any sensor in the loop
• - Easily reprogrammable
• - Sensors simply plug into ballasts

Connection from direct components
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Mechanical Conclusion
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• Controls
• Control Loop Circuits
• - 27 control loops
• - exclusion of Lobby, Concert Hall,
  Recital Hall, Main Stage Theatre, and
  Main Studio Theatre.

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• Controls
• The initial cost savings of the advanced system
  is approximately 29,000

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Mechanical Conclusion
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Cost analysis for 10 energy reduction. Analysis
is for the MOST EXTREME CASE with the lights on,
18 hours a day, 7 days a week, 52 weeks a
year. Cost savings per year is
approximately 5,000. - Cost savings will
increase if the system is implemented throughout
the entire building - Cost difference decreases
as hours, days and weeks are reduced.
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• Controls

Major Advantages - easy ballast replacement and
no reprogramming - easy installation and
connection of sensors - sensors are easily
added as needed - extreme savings in the
initial cost as well as annual savings - gives
control of individual spaces to users if desired
which improves comfort and in-turn increases
productiveness
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Mechanical Conclusion
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• Presentation Outline
• Introduction To The Building
• Lighting Depth
• - Paint Studio
• - Lobby
• Controls Depth
• Mechanical Breadth
• Conclusion

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• Mechanical
• Addition of a Heat Recovery Unit on a 100 OA
  existing air handling unit.
• The Enthalpy Wheel Efficiency for this analysis
  is assumed to be
• 80
• The indoor and outdoor air conditions for
  Baltimore Maryland are shown in the tables below.

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Mechanical Conclusion
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Mechanical The exhaust air for heat recovery is
not constant air volume so a maximum and minimum
amount of recoverable heat is determined off of
cross flow ratios. The Maximum cross flow was
determined to be 48,000 cfm. The minimum cross
flow was determined to be 15,500 cfm.
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Mechanical
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Mechanical The design for the new AHU will be
designed for 15,500 cfm. The table below shows
the Coil Load reduction and the reduction of
energy. The reduction of the coil is
approximately 16.
Intro Paint Studio Lobby Controls
Mechanical Conclusion
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• Presentation Outline
• Introduction To The Building
• Lighting Depth
• - Paint Studio
• - Lobby
• Controls Depth
• Mechanical Breadth
• Conclusion

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Recommendations - The lighting design in the
Paint Studio should be redesigned to meet the
Power Density requirements - The lighting
design in the lobby parallels the design
criteria - The advanced control system should
be implemented through out the whole
building - An energy wheel should be added to
the existing AHU to reduce coil size and save
energy
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Acknowledgments AE Department and Faculty TA
Engineering Alan Zemla Jim Moore Mueller
Associates, Inc. Todd Garing and Ken
Rock Towson University Dennis Bohlayer Lutron
Electronic Company, Inc. Family and Friends
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Questions?