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Benjamin Mitten

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

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Benjamin Mitten

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  1. center for the arts towson university Benjamin Mitten Architectural Engineering Lighting/Electrical Spring 2005

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

  3. 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

  5. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  6. Building Layout IntroPaint Studio Lobby Controls Mechanical Conclusion

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

  8. Paint Studio 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  9. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  10. Paint Studio Solution 54 Watt Indirect Fluorescent Pendent Fixture with electrical track on underside 90 Watt Spot light on track IntroPaint Studio Lobby Controls Mechanical Conclusion

  11. 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. IntroPaint Studio Lobby Controls Mechanical Conclusion

  12. Paint Studio Renderings IntroPaint Studio Lobby Controls Mechanical Conclusion

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

  14. Lobby 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  15. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  16. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

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

  18. Lobby Renderings Main Stage Theatre Scene Concert Hall Scene Studio Theatre Scene Recital Hall Scene IntroPaint Studio Lobby Controls Mechanical Conclusion

  19. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

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

  21. Controls Most of the energy consumption in a commercial building comes from lighting. IntroPaint Studio Lobby Controls Mechanical Conclusion

  22. 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) IntroPaint Studio Lobby Controls Mechanical Conclusion

  23. 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) IntroPaint Studio Lobby Controls Mechanical Conclusion

  24. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  25. Controls Control Loop Circuits - 27 control loops - exclusion of Lobby, Concert Hall, Recital Hall, Main Stage Theatre, and Main Studio Theatre. IntroPaint Studio Lobby Controls Mechanical Conclusion

  26. Controls The initial cost savings of the advanced system is approximately $29,000 IntroPaint Studio Lobby Controls Mechanical Conclusion

  27. 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. IntroPaint Studio Lobby Controls Mechanical Conclusion

  28. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

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

  30. 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. IntroPaint Studio Lobby Controls Mechanical Conclusion

  31. 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. IntroPaint Studio Lobby Controls Mechanical Conclusion

  32. Mechanical IntroPaint Studio Lobby Controls Mechanical Conclusion

  33. 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%. IntroPaint Studio Lobby Controls Mechanical Conclusion

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

  35. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  36. 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 IntroPaint Studio Lobby Controls Mechanical Conclusion

  37. Questions?

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