University of Maryland s Gossett Field House College Park

University of Maryland’s Gossett Field House College Park, MD Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Presentation Outline • • Project Background Existing Mechanical System Mechanical Redesign Structural Redesign Electrical Redesign Conclusions & Recommendations Acknowledgements Questions Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Project Team • • Owner: Architect: MEP: Structural: Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University of Maryland Bignell, Watkins, & Hasser Schlenger/Pitz & Associates The Watkins Partnership

University of Maryland’s Gossett Field House College Park, MD Project Information • • • Square Footage: 65, 000 SF Number of Floors: 2 Existing 1 st Floor: 25, 000 SF Existing 2 nd Floor: 15, 000 SF Total Renovated Area: 40, 000 SF 2 nd Floor Addition: 25, 000 SF Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Existing 1 st Floor Spaces • • Weight Room Home/Visitor Locker rooms Coaches Offices Trainers Room Existing 2 nd Floor Spaces • Additional Support Offices Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

2 nd • • • University of Maryland’s Gossett College Park, MD Floor Addition Field House Full Service Kitchen Dining Area with Terrace over looking Byrd Stadium 250 seat Auditorium Hall of Fame Corridor Classroom/Tutor Rooms Computer Lab Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Existing Air Side System Renovation Section: AHU - 1 – Serves 2 nd floor office space • AHU – 2 – Serves 1 st floor - 100% OA unit with no energy recovery • Duct mounted hot water booster coils • Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Existing Air Side System 2 nd Floor Addition Section: Six Packaged Rooftop Units - 3 CAV Units - 3 VAV Units • VAV boxes with hot water reheat coils used as terminal devices • Air flows from 1400 – 10000 cfm • Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Existing Water Side System • • Air Cooled Liquid Chiller – 270 tons Steam to HW Heat Exchanger – 110 gpm Two Chilled water pumps – 650 gpm, 15 hp Four hot water pumps - 80 gpm, 1 ½ hp - 25 gpm, ¾ hp Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Mechanical Redesign Convert to Central Plant Operation - Steam/HW Heat - Chilled Water • Use Sensible/Latent Energy Recovery Ventilators to Reduce Load on Central Plant • Use VAV boxes with reheat for all terminal devices n Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Objectives of Redesign Minimize First Cost Difference • Reduce Annual Operating Costs • Create a more Homogeneous System • Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University • • Eliminate Gas Fired Heat Make use of Resources Available Minimize impact on other Building Systems Minimize impact on Steam Plant

University of Maryland’s Gossett Field House College Park, MD Design Load Comparison Total Cooling MBH: Total Heating MBH: Total Reheat MBH: Existing System 4398 4431 1397 Proposed System 3215 3197 1414 Total Reheat GPM: Total CFM: 106 86625 142 77480 Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD First Comparison Existing System Proposed System Air Side Cost: $157, 275 $205, 175 Water Side Cost: $185, 325 $341, 825 Ductwork Cost: - - $128, 900 Total First Cost: $342, 600 $418, 100 Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD n Utility Rates Provided by UMD Facility Manager n n Annual Cost Data generated through HAP Analysis Electric Rate: $0. 65/Kwh Gas Rate: $0. 80/therm Steam Rate: $18. 00/1000# Washington, DC used as Simulation City Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University Existing System Annual Cost Proposed System $51, 751 $40, 782

University of Maryland’s Gossett Field House College Park, MD Total Cost Comparison Existing System Proposed System First Cost $342, 600 $418, 100 Life Cycle Cost $537, 160 $423, 305 Total Cost Calculated over 15 years, using a 5% Interest Rate $879, 760 $841, 405 n Life Cycle n Proposed System Saves $38, 355 Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Structural Redesign - AHUs Existing System Proposed System AHU-1 18, 500 18, 150 AHU-2 11, 750 11, 000 RAC-1 5, 200 4, 850 RAC-2 600 525 RAC-3 5, 200 4, 850 RAC-4 n No RAC-5 3, 000 Significant Structural Impact from AHUs Jason Borowski RAC-6 Architectural Engineering Mechanical Option Pennsylvania State University 2, 750 5, 200 4, 850 1, 300 1, 150

University of Maryland’s Gossett Field House College Park, MD Structural Redesign – Cooling Towers Ultimate Load (kip/ft): Mmax (kip-ft): Vmax (kip): Selection: 1. 56 28. 1 9. 36 16 x 31 Beam Pass Shear/Moment? Yes n At cost of $595 per Beama. Pass Deflection: ton, steel for cooling towers would Yes cost approx $500. Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University

University of Maryland’s Gossett Field House College Park, MD Electrical Redesign Original Equipment Removed • AHUs - 480/277 V - 2 – 400 A Panel Boards • Proposed Equipment Added • AHUs - 480/277 V - 1 – 600 A Panel Board • Water Side Equipment • VAV Boxes Water Side Equipment - 480/277 V - 1 – 600 A Panel Board • Total Load Removed: - 670 KVA Jason Borowski Architectural Engineering Mechanical Option Pennsylvania State University - 480/277 V - 1 – 400 A Panel Board - 480/277 V - 4 – 150 A Panel Boards • Total Load Added: - 645 KVA

University of Maryland’s Gossett Field House College Park, MD Acknowledgements Richard Naldrett – Schlenger/Pitz & Associates Frank Watkins – Bignell, Watkins & Hasser John Vucci – UMD Facilities Manager AE Faculty and Staff Fellow AE Students Family, Siblings & Girlfriend

University of Maryland’s Gossett Field House College Park, MD Questions?