Michael Reilly, Jr. – Mechanical Option Advisor – James Freihaut, PhD & Dustin Eplee The Pennsylvania State University Nassau Community College Life Sciences.

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Presentation transcript:

Michael Reilly, Jr. – Mechanical Option Advisor – James Freihaut, PhD & Dustin Eplee The Pennsylvania State University Nassau Community College Life Sciences Building Garden City, NY

Introduction Summary Life Sciences Building Mechanical System Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions 20% decrease in first cost with chilled beam & dedicated outdoor air system 50% reduction in supply air 18% increase in chilled water flow 26% decrease in energy* Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option $26,000 lower first cost with variable primary flow $1,500 annual energy savings with variable primary flow

Introduction Summary Life Sciences Building Mechanical System Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Architect:Cannon Design Structural:Cannon Design M/E/P/FP:Cannon Design CM:Jacobs Project Management Co. Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option Size72,400 Square Feet Occupancy:Classrooms/Laboratories/Offices Levels:3/Penthouse/Basement Cost:$30 Million Construction Dates:March 2010 – January 2012

Introduction Summary Life Sciences Building Mechanical System Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Campus High Temperature Hot Water – 270°F Heat Exchangers – 180°F Direct to Air Handling Units Campus Chilled Water - 42°F Booster Pumps Direct to all coils Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option Classrooms/Offices 25,550 CFM VAV with Terminal Reheat Laboratories VAV with Supply Valves and Reheat Fume Hoods Glycol Heat Recovery Run-Around Loop Laboratory Exhaust 3 Fans with a minimum discharge of 4,000 FPM Heat Recovery

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Offices Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option Classrooms 100 ft 2 9’-1” Ceiling 1 Occupant Glass Curtain Wall 1,100 ft 2 9’-1” Ceiling 36 Occupants Glass Curtain Wall or Window

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Obtain design hourly cooling load predictions Select Similar Pump/Fan model Create regressions illustrating equipment Curve Model Use regressions to determine power Apply utility rate structure Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions New Chilled Beam/DOAS - $1,000,000 Smaller Air Handling Unit Less VAV Boxes Less Ductwork No Finned Tube Radiation Extra Piping Add Desiccant/Sensible Wheels Add Pump 20% Less First Cost Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option Existing VAV with Terminal Reheat - $1,254,000 Large Air Handling Unit Many VAV Boxes Much Ductwork Less Pumps Less piping

Introduction Depth 1: Decentralized Air System Design Energy/First Cost Life Cycle Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions VAV with Terminal Reheat 30-year NPV: $1,628,000 Chilled Beam with Dedicated Outdoor Air System 30-year NPV: $1,470, % Lower LCC with Chilled Beam/DOAS Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Design Energy/First Cost Life Cycle Breadth 1: Daylighting Conclusion Acknowledgements Questions Equipment Carrier 270 Screw Chiller Bell & Gossett Base-Mounted Pumps Marley Cooling Tower Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Design Energy/First Cost Life Cycle Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option Obtain design hourly cooling load predictions Create regressions illustrating equipment Chiller - California Energy Commission Cooling Tower/Pump - Curve Model Use regressions to determine power Apply electric rate structure

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Design Energy/First Cost Life Cycle Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Design Energy/First Cost Life Cycle Breadth 1: Daylighting Conclusion Acknowledgements Questions Primary/Secondary - $243,000 Extra set of pumps More Piping Variable Primary Flow - $217,000 Less Pumps Less Piping 11% decrease in first cost Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Design Energy/First Cost Life Cycle Breadth 1: Daylighting Conclusion Acknowledgements Questions Primary/Secondary 30-year NPV: $1,231,000 Variable Primary Flow 30-year NPV: $1,161,000 6% Lower LCC with VPF Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Objective Analysis Conclusion Acknowledgements Questions Life Sciences Building Design Goals LEED Credit % of regularly occupied spaces between 25 fc and 500 fc. September 21 at 9am and 3pm Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Objective Analysis Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option September 21 st 9 am 1 st floor N

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Objective Analysis Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option September 21 st 9 am 2 nd floor N

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Objective Analysis Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option September 21 st 3 pm 1 st floor N

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Objective Analysis Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option September 21 st 3 pm 2 nd floor N

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Objective Analysis Conclusion Acknowledgements Questions Conclusion 1 st floor, 9am – non-compliant 73% at 9am 82% at 3pm Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgments Questions Decentralized Air System $254,000 decrease in first cost 20% higher annual energy cost 9.7% smaller LCC P/S vs. VPF $26,000 decrease in first cost with VPF 5% decrease in annual energy cost with VPF 6% smaller LCC with VPF Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Dr. James FreihautFaculty Advisor, Penn State Dustin EpleeFaculty Advisor, Energy Wall Jan GasparecMechanical Engineer, Cannon Design Eric LindstromMechanical Engineer, Cannon Design Mike KirkpatrickElectrical Engineer, Cannon Design Dr. William BahnflethMechanical Instructor, Penn State Dr. Jelena SrebricMechanical Instructor, Penn State Moses LingMechanical Instructor, Penn State Michael Reilly Sr.Owner, Reilly Plumbing & Heating AE Friends Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Introduction Depth 1: Decentralized Air System Depth 2: Chiller Plant Design Breadth 1: Daylighting Conclusion Acknowledgements Questions Michael Reilly, Jr.Nassau Community College Life Sciences BuildingMechanical Option

Primary/Secondary Variable Primary Flow

Chilled Beam Chilled Water Pumping Schematic

Dedicated Outdoor Air Unit Schematic

Architectural Breadth/ Daylight Shading

Chiller Plant Location

DOAS Pump CurveDOAS Unit Fan Curve