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The Florida State University Ringling Conservation Center Sarasota, Florida

The Florida State University Ringling Conservation Center Sarasota, Florida. Linda Lewis Mechanical Option Spring 2005. Presentation Outline. General Information Project Team Existing Design Redesign Goals Design Considerations Mechanical Redesign Acoustical Analysis

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The Florida State University Ringling Conservation Center Sarasota, Florida

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  1. The Florida State University Ringling Conservation Center Sarasota, Florida Linda Lewis Mechanical Option Spring 2005

  2. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  3. General Information • Located- Sarasota Florida on the Ringling Campus • John Ringling – Sarasota is the Circus Capitol of the World • Campus • Museum of Art • Cà d´zan • Circus Museum • Conservation Center • Florida State University The FSU Ringling Conservation Center

  4. General Information • Size- • 3 Stories • 73,000 sq ft Building • 23,000 sq ft Parking Garage/ Loading Deck • Building Functions- • Art Conservation- 2,020 Sq Ft • Art Library- 17,050 Sq Ft • Art Storage -4330 Sq Ft • Classrooms-2989 Sq Ft • Offices- 4655 Sq Ft • Unique Features- • Lobbies, Corridors and Elevators – Fit large Pieces of artwork • Art Conservation Lab– Self Balancing System First Floor Second Floor The FSU Ringling Conservation Center

  5. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Consideration • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  6. Project Team • Owner: Sarasota County • Architect: Hellmuth, Obata + Kassabaum, Inc. (HOK) – Tampa, Florida • MEP & Technology: TLC Engineering for Architecture – Tampa, Florida • Structural Engineer: Master Consulting Engineers – Tampa, Florida • Construction Manager: To Be Determined– GC Hard Bid with GMP on Final CD’s The FSU Ringling Conservation Center

  7. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  8. Existing Conditions • Mechanical • 8 Air Handling Units (50,790cfm) • 3-Constant Volume – EDH and Humidifiers • Serve Art Storage Areas • 3-Variable Air Volume (VAV) – Electric Reheat • Serve 2nd Floor- Classroom, Office Area, Library • 2-VAV Dual Path- Electric Reheat • Dual Path- Separate Cooling Coils for RA and OA • Serve 1st Floor- Classrooms, Library • Chiller Plant • Provides Chilled Water for the Entire Campus The FSU Ringling Conservation Center

  9. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Consideration • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  10. Redesign Goals • To Save Energy • 71% of the US Electricity comes from Fossil Fuels • Fossil Fuels Create Emissions • Green House Effect • DOE - 40-60% of Electricity is used in HVAC Systems • 80% of Electricity in the South is used by HVAC The FSU Ringling Conservation Center

  11. Redesign Goals • Improve Indoor Air Quality (IAQ) • The Environmental Protection Agency (EPA)- 90% of our time indoors • Mild effects of poor IAQ are: irritation of the eyes, nose, and throat, headaches, dizziness, and/or fatigue • Serious effects of poor IAQ: respiratory cancer, chronic obstructive pulmonary disease or immunologic disorders • Asthma Numbers are Increasing • Poor indoor air quality can result in a decrease in productivity of workers and larger numbers of absenteeism’s. • Lower Operation Costs The FSU Ringling Conservation Center

  12. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  13. Design Considerations • Outdoor Conditions • Summer • 93°F DB, 80°F WB • Winter • 39°F DB • Indoor Conditions • General Occupancy Areas • Summer - 72°F DB, 50% RH • Winter - 68°F DB, 55% RH • Areas with Art work • All Year - 70°F DB, 50% RH The FSU Ringling Conservation Center

  14. Design Considerations • Proposal • Energy Recovery Wheels • Enthalpy Wheels • Thermal Storage • Partial Storage • Load Leveling The FSU Ringling Conservation Center

  15. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  16. Mechanical Redesign- Enthalpy Wheels • Background Information • Can Reduce Outdoor Air Load on the Cooling Coil • Help in better IAQ • Remove containments from the air • Allows for a more energy efficient way of bringing in appropriate ventilation air (ASHRAE Standard 62) The FSU Ringling Conservation Center

  17. Mechanical Redesign- Enthalpy Wheels • Air Handling Units • Novel Aire Wheels The FSU Ringling Conservation Center

  18. Mechanical Redesign- Enthalpy Wheels • Calculations • Bin Year • Occupied vs Unoccupied • Summer vs School Year Novel Aire Simulation Program The FSU Ringling Conservation Center

  19. Mechanical Redesign- Enthalpy Wheels • Wheel Operation • On When Sum of Sensible and Latent Savings is Positive • Off When Sum of Sensible and Latent Savings is Negative • Modulate When Outdoor AirTemperature is Lower than Supply Air Temperature • When Heating the Air the Air is also Humidified The FSU Ringling Conservation Center

  20. Mechanical Redesign- Enthalpy Wheels • Summary of Results • Total Savings – 33% • Of the Total • Latent – 84% • Sensible – 16% . Total Outdoor Air LoadSavings The FSU Ringling Conservation Center

  21. Mechanical Redesign- Enthalpy Wheels • Wheels Savings • First Cost Wheels Enthalpy Wheel First Cost Total Cost Savings Cost Savings: $3276 The FSU Ringling Conservation Center

  22. Mechanical Redesign- Enthalpy Wheels • Cost Analysis • Wheels - $18,405 • Reconfiguring AHU and Ductwork - $5000 • Reduction in Cooling Coil Size - $7900 • Conclusions • Payback just using kWh Savings – 4.7 Yrs • Less with On Peak kW Demand Reduction The FSU Ringling Conservation Center

  23. Mechanical Redesign- Thermal Storage • Current Chiller Plant • 2 – 650 Water Cooled Centrifugal Chillers • Provide 40°F Water • Ice Storage • York Chillers • Calmac Icetanks • Melted Ice on Coil The FSU Ringling Conservation Center

  24. Mechanical Redesign- Partial Storage • Florida Power and Light • Time of Use Rates The FSU Ringling Conservation Center

  25. Mechanical Redesign- Partial Storage STORE BASE LOAD CHILLER The FSU Ringling Conservation Center

  26. Mechanical Redesign- Partial Storage • Calculations • Bin Year • March Design Day • 4500 Ton Hours Needed • 500 Ton Ice Chiller for 9 Hours • Savings 52% Reduction in Operation Cost Average On Peak kW Shift – 428 kW Summary of kwh Usage On-Peak kW Demand Totals Partial Storage Savings The FSU Ringling Conservation Center

  27. Mechanical Redesign- Partial Storage • First Cost – RS Means Thermal Storage First Cost Original System First Cost Cost of Thermal Storage System = 125% Increase The FSU Ringling Conservation Center

  28. Mechanical Redesign- Partial Storage • Cost Analysis • First Cost Difference = $539,850 • Inflation Rate of Money = 1.023% • Annual Savings = $42,035 • Payback Period = 12 Yrs The FSU Ringling Conservation Center

  29. Mechanical Redesign- Load Leveling STORE The FSU Ringling Conservation Center

  30. Mechanical Redesign- Load Leveling • Calculations • July Design Day • 2650 Ton Hours Needed • 310 Ton Ice Chiller • Savings Average On Peak kW Shift – 235 kW 16% Reduction in Operation Cost Summary of kwh Usage Load Leveling On-Peak kW Demand Load Leveling Totals Load Leveling Savings The FSU Ringling Conservation Center

  31. Mechanical Redesign- Load Leveling • First Cost – RS Means Thermal Storage First Cost Original System First Cost Cost of Thermal Storage System = 50% Increase The FSU Ringling Conservation Center

  32. Mechanical Redesign- Load Leveling • Cost Analysis • First Cost Difference = $211,000 • Inflation Rate of Money = 1.023% • Annual Savings = $13,738 • Payback Period = 15.5 Yrs The FSU Ringling Conservation Center

  33. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  34. Acoustical Analysis Reverberation Time • Room Dimensions- 76’x 30’x 20’ The FSU Ringling Conservation Center

  35. Acoustical Analysis • Echo Eliminator • Recycled Cotton - Green • 2”- 2’x4’- (320ft2 = 40 Panels) • Cost • $1.75/ft2 = $560 • Shipping = $40 The FSU Ringling Conservation Center

  36. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  37. Lighting Analysis • Classroom Current Design • 2’x 2’ two lamp, Parabolic Louvered, lay-in Fluorescent Fixtures • Lamps • Daylight – 5000 K • Incandescent – Natural Light • Fluorescent–4100 K (CRI = 85) • Classroom Functions • Teaching • Creating Artwork • New Design • Direct/Indirect Fixtures • Incandescent Downlights The FSU Ringling Conservation Center

  38. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  39. Conclusions and Recommendations • Add Enthalpy Wheels • Payback Period 4.7 Years • Decrease kW Demand • Do Not Use Thermal Storage • Both Partial Storage and Load Leveling have too high of Payback Periods • Use More Smaller Chillers • Add Acoustical Panels • For a Low Cost Fix the Echo • Change Lighting in the Classroom Areas • Provide Better Lighting for Students to Learn The FSU Ringling Conservation Center

  40. Presentation Outline • General Information • Project Team • Existing Design • Redesign Goals • Design Considerations • Mechanical Redesign • Acoustical Analysis • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions The FSU Ringling Conservation Center

  41. Acknowledgements Special Thanks To: • Dr. Freihuat • Dr. Mumma • Dr. Bahnfleth • Dr. Burroughs • AE Faculty • AE Staff • Novel Aire – David McDonald • Family • Friends • AE Class of 2005 The FSU Ringling Conservation Center

  42. ? ? Questions? ? ? ? ? The FSU Ringling Conservation Center

  43. Desiccant Dehumidification Overall Savings of Active Desiccant is 37% of the EW Savings The FSU Ringling Conservation Center

  44. Using Smaller Chillers • Current Chiller Design 2 – 650 Ton Chillers • Proposed to use • 2 – 350 Ton Chillers • 1 – 300 Ton Chiller • Advantages • Lessen Redundant Capacity Needed • Increase Efficiency- Decreasing Energy • Approximate Savings - $8,000 Electricity/Yr • First Cost – 20% Reduction in Cost • Still have the Ability to Add to Plant The FSU Ringling Conservation Center

  45. Existing Conditions • Electrical • 2000 amp, 480/277, 3 phase, 4 wire system • 8 step down transformers– 208Y/120 • Lighting • Lobbies- Compact Fluorescent Downlights • Classrooms- 2’x 2’—2 lamp parabolic louvered fluorescents • Storage Areas-4’—2 lamp industrial strip fixtures • Conservation Lab-8’—2 lamp direct/indirect pendant fluorescents • Structural • 3 Story Concrete Structure • Poured Concrete Columns • Precast Sofit Beams • Precast Concrete Joists – Ribs 5’ OC • Floor– Pour Concrete • Lateral System- Braced Steel Frame • Roof– Standing Seam Metal • Technology • Telephone outlets- Offices & Classrooms • Television – Classrooms • Ethernet- Classrooms, Library, Offices, Conservation Lab The FSU Ringling Conservation Center

  46. Design Considerations • Building Operation • Library: • September-April Monday-Sunday 7am – 9pm • May-August Monday-Sunday 7am – 6pm • All other Areas: Monday-Sunday 7am – 5pm The FSU Ringling Conservation Center

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