Bowie State University Fine and Performing Arts Center

Bowie State University Fine and Performing Arts Center Zachary Lippert Faculty Advisor: Dr. Stephen Treado

Presentation Outline • Project Overview Bowie State University Fine and Performing Arts Center Project Team Owner: University of Maryland • Existing Mechanical System CM: Holder Construction Company • Proposed Redesign Architect: EYP Architecture and Engineering Mechanical Contractor: W. E. Bowers • Ground Source Heat Pump Electrical Contractor: Mona Electric • Underfloor Air Distribution System Controls Contractor: Seimens • Lighting Breadth Commissioning Authority: EMC/Eaton • Cost and Savings MEP Engineer: EYP Architecture and Engineering • Recommendations • Conclusion Zachary Lippert Faculty Advisor: Dr. Stephen Treado

Presentation Outline Project Overview • Site • Bowie, Maryland • Southeast corner of campus • Project Information • 123, 000 square feet • $79 million • Design-Bid-Build delivery method • Architecture • Large expanse of glass • Mixed use building • Multiple large performance spaces • Art gallery • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Courtesy of Google Maps

Existing Mechanical System Presentation Outline • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion • • • 3 Mixed Air Units with enthalpy wheels 16 Air Handling Units 64 VAV boxes (40 to 1, 200 CFM)

Existing Mechanical System Presentation Outline • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion • • Two 1712 MBH gas fired boilers Four heating water pumps 305 ton air cooled chiller Four chilled water pumps

Presentation Outline Existing Mechanical System • Project Overview Energy Consumption by System • Existing Mechanical System 284 900, 00 Heating 500 964, 00 • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Cooling 472 963, 00 1 038 262, 00 Auxiliary 183 266, 00 Lighting Receptacle

Proposed Redesign Presentation Outline • Project Overview • Goals for the redesign • Improve the mechanical efficiency • Reduce utility bills • Redesign Components • Ground source heat pump • Underfloor air distribution • Energy efficient lighting system • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion

Presentation Outline • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion No. of Bores 450 480 510 540 570 Depth (ft) 616. 1 577. 6 543. 6 513. 4 486. 4

Ground Source Heat Pump Presentation Outline • Project Overview • Equipment • 510 bores at 544 ft • 2 gpm/ton • System flow rate: 410 gpm • 5” headers and 1” U-tube piping • Total head loss: 54 ft of water • Two 10 HP 1750 RPM pumps • Energy Model • Heating: Saved 411, 164 k. Btu/year • Cooling: Saved 153, 327 k. Btu/year • Auxiliary: Used additional 237, 532 k. Btu/year • Net Savings: 326, 959 k. Btu/year • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion

Underfloor Air Distribution Presentation Outline • Project Overview • Location of the systems • Large volume spaces • Encourage stratification • Duct layout • Less ductwork • Lower pressure drop • Less fan power • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion

Presentation Outline • Project Overview • Existing Mechanical System Underfloor Air Distribution • Energy Usage • Minor reduction in cooling load • Significant increase in heating load • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Existing UFAD Difference Heating (MBh) Cooling (tons) 587 212 1, 037 199 450 MBh 13 tons • System Sizing • Increased duct length ~20% • Increased fan power and size • System Drawbacks • Raised floor system • Larger fan • More materials • Longer construction time • Uses more energy • This system was not further investigated

Presentation Outline Energy Efficient Lighting • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion • Redesign Goal • Reduce the yearly k. Wh in the offices and classrooms • Provide adequate light for required tasks • Methods • Energy efficient luminaires • T 5 HO lamps • Occupancy sensors

Presentation Outline • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Energy Efficient Lighting • Existing Lighting Design • Offices • Recessed direct luminaires • Two foot luminaires with two 40 Watt TT 5 lamps • 1. 55 Watts/sq. ft. • Classrooms • Recessed direct luminaires • Four foot luminaires with two 32 Watt T 8 lamps • 1. 47 Watts/sq. ft. • Proposed Lighting Design • Offices and classrooms • Suspended direct/indirect luminaires • Four foot luminaires with one 54 Watt T 5 HO lamps

Presentation Outline Energy Efficient Lighting • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion • Illuminance Values • Office: 30 foot-candles • Music Classrooms: 15 foot-candles • AGI Model • Less watts per luminaire • Half as many luminaires • Excellent energy savings

Presentation Outline • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Energy Efficient Lighting • Occupancy Sensors • Offices: Passive infrared • Classrooms: Ultrasonic • Equivalent Full Load Hours • Offices: 2870 • Classrooms: 2522 • Hours Saved • Offices: 1091 • Classrooms: 1463

Presentation Outline Office Energy Savings Classroom Energy Savings • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Total Watts EFLH Total k. Wh with Sensors Total Savings Existing 7564 2870 21709 - Proposed 3829 2870 10989 6813 14, 896 k. Wh Total Watts EFLH Total k. Wh with Sensors Total Savings Existing 19414 2522 48962 - Proposed 6552 2522 16524 6940 42, 022 k. Wh

Presentation Outline Ground Source Heat Pump Cost and Savings • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion • • • Total System Cost: $2, 938, 000 BG&E Incentive: $1, 000 Net Cost: $1, 938, 000 • Total Utility Savings: -$665. 27 Existing System Electric Consumption 619509 (k. Wh) Electric Cost $57, 428. 48 Gas Consumption 3660 (therms) Gas Cost $732. 00 Total Utility Cost $58, 160. 48 GSHP 634582 $58, 825. 75 0 $0. 00 $58, 825. 75

Presentation Outline Lighting Redesign Cost and Savings • Project Overview • Existing Mechanical System No. of Price/Fixture Total Cost Fixtures • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Old Luminaires 317 $212. 00 $67, 204. 00 New Luminaires 159 $352. 00 $55, 968. 00 Savings $11, 236. 00 Classrooms k. Wh Saved per Year Cost/k. Wh Money Saved/Year Total Savings/Year Offices 32437 10718 $0. 0927 $3006. 88 $993. 57 $4000. 45

Presentation Outline • Project Overview • Existing Mechanical System • Proposed Redesign Classrooms • Ground Source Heat Pump Cost Without Sensors Cost With Sensor • Underfloor Air Distribution System Utility Savings • Lighting Breadth Total Savings per Year • Cost and Savings • Recommendations • Conclusion Offices $1, 531. 81 $643. 36 $1, 018. 73 $631. 61 $888. 45 $387. 12 $1, 275. 56

Presentation Outline • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System • Lighting Breadth • Cost and Savings • Recommendations • Conclusion Recommendations • Ground Source Heat Pump • Reduced energy consumption • Expensive to install • Increased utility costs • Explore other options • Lighting Redesign • Less expensive to install • Reduced energy consumption and costs • Implement this design • Underfloor Air Distribution • Expensive to install • Increased energy consumption • Increased construction time • Explore other options • Occupancy Sensors • Reduced energy consumption and costs • More expensive to install • 8. 8 year payback • Implement this design

Presentation Outline Acknowledgements • Project Overview • Existing Mechanical System • Proposed Redesign • Ground Source Heat Pump • Underfloor Air Distribution System Architectural Engineering Faculty and Staff Dr. Stephen Treado Questions? Adam Seigrist and Mike Luffred of EMC/Eaton • Lighting Breadth Hayes Todd of Holder Construction • Cost and Savings My Friends and Family • Recommendations • Conclusion