The Florida State University Ringling Conservation Center Sarasota, - PowerPoint PPT Presentation

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 • Lighting Analysis • Conclusion and Recommendations • Acknowledgements • Questions Linda Lewis Mech Option The FSU Ringling Conservation Center

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 Linda Lewis Mech Option The FSU Ringling Conservation Center

General Information • Size - • 3 Stories • 73,000 sq ft Building • 23,000 sq ft Parking Garage/ Loading Deck First Floor • 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 Second Floor • Unique Features- • Lobbies, Corridors and Elevators – Fit large Pieces of artwork • Art Conservation Lab – Self Balancing System Linda Lewis Mech Option The FSU Ringling Conservation Center

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

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 Linda Lewis Mech Option The FSU Ringling Conservation Center

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

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

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

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 Linda Lewis Mech Option The FSU Ringling Conservation Center

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 Linda Lewis Mech Option The FSU Ringling Conservation Center

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

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 Linda Lewis Mech Option The FSU Ringling Conservation Center

Design Considerations • Proposal • Energy Recovery Wheels • Enthalpy Wheels • Thermal Storage • Partial Storage • Load Leveling Linda Lewis Mech Option The FSU Ringling Conservation Center

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

Mechanical Redesign- E nthalpy 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) Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- E nthalpy Wheels • Air Handling Units • Novel Aire Wheels AHU SA cfm OA cfm EA cfm AHU 1-1 990 590 470 AHU 1-2 2500 1540 1380 AHU 1-3 4870 4870 4870 AHU 1-4 1450 580 480 AHU 1-5 3100 420 320 AHU 2-1 5600 2000 1380 AHU 2-2 10,000 7600 4500 AHU 2-3 880 580 480 Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- E nthalpy Wheels • Calculations Novel Aire Simulation Program • Bin Year • Occupied vs Unoccupied • Summer vs School Year Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- E nthalpy 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 Air Temperature is Lower than Supply Air Temperature • When Heating the Air the Air is also Humidified Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- E nthalpy Wheels • Summary of Results • Total Savings – 33% Without EW With EW Savings . AHU kBtu kBtu Total kBtu % Savings • Of the Total AHU 1-1 240,855 157,954 82,901 34% AHU 1-2 458,110 317,167 140,943 31% • Latent – 84% AHU 1-3 823,124 533,994 289,131 35% • Sensible – 16% AHU 1-4 197,700 133,077 64,622 33% AHU 1-5 129,219 88,252 40,966 32% AHU 2-1 639,188 435,785 203,404 32% AHU 2-2 1,208,102 855,603 352,498 29% AHU 2-3 109,287 67,995 41,292 38% Total Outdoor Air Load Savings Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- E nthalpy Wheels • First Cost Wheels • Wheels Savings Number of Installation On Peak kWh Off Peak kWh On Peak kWh Off Peak kWh AHU per Year Per Year Cost Cost Wheel Price Wheels Cost Total Cost AHU 1-1 5,033.7 8948.9 $120.00 $66.31 ECW 204 $600.00 1 $420.00 $1,020.00 AHU 1-2 10,667.7 18964.8 $254.32 $140.53 ECW 244 AHU 1-3 $900.00 21,702.3 38581.9 3 $517.38 $420.00 $3,120.00 $285.89 AHU 1-4 3,023.3 5374.7 $72.07 $39.83 ECW 364 $1,500.00 2 $505.00 $3,505.00 AHU 1-5 3,087.4 5488.7 $73.60 $40.67 ECW 544 $3,400.00 1 $630.00 $4,030.00 AHU 2-1 15,328.0 27249.7 $365.42 $201.92 AHU 2-2 26,595.1 47280.1 $634.03 $350.35 ECW 724 $6,100.00 1 $630.00 $6,730.00 AHU 2-3 3,062.6 5444.6 $73.01 $40.34 Totals $12,500 8 $2,605 $18,405 Totals 88,500 157,334 $2,110 $1,166 Enthalpy Wheel First Cost Total Cost Savings Cost Savings: $3276 Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- E nthalpy 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 Linda Lewis Mech Option The FSU Ringling Conservation Center

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 Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- Partial Storage • Florida Power and Light • Time of Use Rates Monthly On Peak Off Peak Demand On Peak kWh kWh kW Demand Charge kW Charge Charge Charge 21-499 $38.58 $8.16 3.337¢ 1.021¢ 500 -1999 $38.12 $8.15 2.279¢ 0.788¢ Linda Lewis Mech Option The FSU Ringling Conservation Center

Mechanical Redesign- Partial Storage July 700.0 600.0 500.0 400.0 T o n s July STORE 300.0 200.0 100.0 BASE LOAD CHILLER 0.0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Hour Linda Lewis Mech Option The FSU Ringling Conservation Center