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LONGWOOD AT OAKMONT HEALTHCARE CENTER

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Presentation on theme: "LONGWOOD AT OAKMONT HEALTHCARE CENTER"— Presentation transcript:

1 LONGWOOD AT OAKMONT HEALTHCARE CENTER
GROUND SOURCE HEAT PUMP ANALYSIS FOR THE LOONGWOOD AT OAKMONT HEALTHCARE CENTER TYLER LOBB AE SENIOR THESIS – SPRING 2008 MECHANICAL OPTION THE PENNSYLVANIA STATE UNIVERSITY

2 Presentation Outline LONGWOOD AT OAKMONT HEALTHCARE CENTER
Project and Building Background Building Existing Conditions Mechanical System Redesign Goals and Objectives GSHP Building Energy Utilization Economic Analysis Electrical Breadth: Power System Changes Construction Breadth: GSHP Well Field Analysis Redesign Conclusions TYLER LOBB – MECHANICAL OPTION

3 Project and Building Background
LONGWOOD AT OAKMONT HEALTHCARE CENTER Project and Building Background Building Logistics Location: 500 Route 909 Verona, PA 15147 Building Occupant: Presbyterian Senior Care Occupancy/Function Type: Senior Care Facility Size: 45,000 SF Date of Construction: November 2007 – July 2008 Cost: Roughly 11 million dollars Delivery Method: Design-Bid-Build TYLER LOBB – MECHANICAL OPTION

4 Project and Building Background
LONGWOOD AT OAKMONT HEALTHCARE CENTER Project and Building Background Project Team: Owner – Presbyterian Senior Care General Contractor – Mistick Construction ( Architect – Reese, Lower, Patrick, and Scott, Ltd. ( MEP Engineer – Reese Engineering Inc. ( Structural Engineer – Zug and Associates Civil Engineer – Gateway Engineering Inc. ( Landscape Architects – Victor – Wetzel Associates Food Services – S.S. Kemp and Co. ( TYLER LOBB – MECHANICAL OPTION

5 Project and Building Background
LONGWOOD AT OAKMONT HEALTHCARE CENTER Project and Building Background Healthcare Center Private/Semi-Private Resident Rooms Offices Public Gathering Spaces Kitchens - Beauty Shop TYLER LOBB – MECHANICAL OPTION

6 Presentation Outline LONGWOOD AT OAKMONT HEALTHCARE CENTER
Project and Building Background Building Existing Conditions Mechanical System Redesign Goals and Objectives GSHP Building Energy Utilization Economic Analysis Electrical Breadth: Power System Changes Construction Breadth: GSHP Well Field Analysis Redesign Conclusions TYLER LOBB – MECHANICAL OPTION

7 Building Existing Conditions
LONGWOOD AT OAKMONT HEALTHCARE CENTER Building Existing Conditions Energy Recovery Unit Supply Ventilation Air Throughout Building “Room Neutral” °F DB (Cooling) & 34 °F DB (Heating) Distributed to Water Source Heat Pumps Fully Conditioned to Desired Set Point TYLER LOBB – MECHANICAL OPTION

8 Building Existing Conditions
LONGWOOD AT OAKMONT HEALTHCARE CENTER Building Existing Conditions Water Source Heat Pump Located in Virtually Every Space Perform Final Conditioning to Occupant Set Point ½ - 10 Nominal Ton Units Use Water Loop to Either Heat or Cool Air TYLER LOBB – MECHANICAL OPTION

9 Building Existing Conditions
LONGWOOD AT OAKMONT HEALTHCARE CENTER Building Existing Conditions Cooling Tower Closed Circuit, 325 Ton, Blow Through, Axial Fan Cools Water Loop Boilers Gas-Fired Boilers Heat Water Loop Three Boilers, One is Used as Backup Pumps Two Centrifugal Pumps Circulate Water Loop TYLER LOBB – MECHANICAL OPTION

10 Building Existing Conditions
LONGWOOD AT OAKMONT HEALTHCARE CENTER Building Existing Conditions TYLER LOBB – MECHANICAL OPTION

11 Presentation Outline LONGWOOD AT OAKMONT HEALTHCARE CENTER
Project and Building Background Building Existing Conditions Mechanical System Redesign Goals and Objectives GSHP Building Energy Utilization Economic Analysis Electrical Breadth: Power System Changes Construction Breadth: GSHP Well Field Analysis Redesign Conclusions TYLER LOBB – MECHANICAL OPTION

12 Mechanical System Redesign
LONGWOOD AT OAKMONT HEALTHCARE CENTER Mechanical System Redesign Goals and Objectives Increase Energy Efficiency Fulfill Needs and Budget of Client Compare WSHP System Versus GSHP System Limit Negative Effects on Other Systems TYLER LOBB – MECHANICAL OPTION

13 Mechanical System Redesign
LONGWOOD AT OAKMONT HEALTHCARE CENTER Mechanical System Redesign Ground Source Heat Pump System Utilizes Earth’s Underground Temperature to Transfer Heat Can Both Heat and Cool Numerous Up-Front Hurdles Potentially High Operating Cost Savings TYLER LOBB – MECHANICAL OPTION

14 Mechanical System Redesign
LONGWOOD AT OAKMONT HEALTHCARE CENTER Mechanical System Redesign TYLER LOBB – MECHANICAL OPTION

15 Mechanical System Redesign
LONGWOOD AT OAKMONT HEALTHCARE CENTER Mechanical System Redesign Building Energy Utilization Mechanical Load Remains Same Efficiency for Conditioning Load Increases Decrease in Heating and Cooling Energy Usage 23% Decrease in Energy Building Consumption TYLER LOBB – MECHANICAL OPTION

16 Mechanical System Redesign
LONGWOOD AT OAKMONT HEALTHCARE CENTER Mechanical System Redesign Redesigned Annual Building Energy Utilization Annual Building Energy Utilization TYLER LOBB – MECHANICAL OPTION

17 Mechanical System Redesign
LONGWOOD AT OAKMONT HEALTHCARE CENTER Mechanical System Redesign Economic Analysis Initial Cost Comparison More Than Twice as Expensive Up-Front TYLER LOBB – MECHANICAL OPTION

18 Mechanical System Redesign
LONGWOOD AT OAKMONT HEALTHCARE CENTER Mechanical System Redesign Economic Analysis 20 Year Cost Analysis Cost Description WSHP System Costs ($) GSHP System Costs ($) Utility Cost Initial Cost 135500 325470 TOTAL Roughly 10% Cheaper Payback Period of 11 Years TYLER LOBB – MECHANICAL OPTION

19 Presentation Outline LONGWOOD AT OAKMONT HEALTHCARE CENTER
Project and Building Background Building Existing Conditions Mechanical System Redesign Goals and Objectives GSHP Building Energy Utilization Economic Analysis Electrical Breadth: Power System Changes Construction Breadth: GSHP Well Field Analysis Redesign Conclusions TYLER LOBB – MECHANICAL OPTION

20 Electrical Breadth Power System Changes
LONGWOOD AT OAKMONT HEALTHCARE CENTER Electrical Breadth Power System Changes Mechanical System Power Redesign Electrical Driven Equipment Added and Removed Panel Boards Resized Feeders and Conduit Resized Accordingly Voltage Drop Checked TYLER LOBB – MECHANICAL OPTION

21 Electrical Breadth Power System Changes
LONGWOOD AT OAKMONT HEALTHCARE CENTER Electrical Breadth Power System Changes Cost Analysis of Power Changes Conductor Savings $1,130 Conduit Savings $2,910 Total $4,040 Electrical Cost Savings Due to Mechanical Redesign TYLER LOBB – MECHANICAL OPTION

22 Presentation Outline LONGWOOD AT OAKMONT HEALTHCARE CENTER
Project and Building Background Building Existing Conditions Mechanical System Redesign Goals and Objectives GSHP Building Energy Utilization Economic Analysis Electrical Breadth: Power System Changes Construction Breadth: GSHP Well Field Analysis Redesign Conclusions TYLER LOBB – MECHANICAL OPTION

23 Construction Breadth GSHP Well Field Analysis
LONGWOOD AT OAKMONT HEALTHCARE CENTER Construction Breadth GSHP Well Field Analysis Effects of Redesigned System Impact on Construction Schedule Physical Properties of Site Size and Location of Well Field TYLER LOBB – MECHANICAL OPTION

24 Construction Breadth GSHP Well Field Analysis
LONGWOOD AT OAKMONT HEALTHCARE CENTER Construction Breadth GSHP Well Field Analysis Existing Property Line TYLER LOBB – MECHANICAL OPTION

25 Presentation Outline LONGWOOD AT OAKMONT HEALTHCARE CENTER
Project and Building Background Building Existing Conditions Mechanical System Redesign Goals and Objectives GSHP Building Energy Utilization Economic Analysis Electrical Breadth: Power System Changes Construction Breadth: GSHP Well Field Analysis Redesign Conclusions TYLER LOBB – MECHANICAL OPTION

26 Redesign Conclusions LONGWOOD AT OAKMONT HEALTHCARE CENTER
Higher Initial Costs Annual Utility Savings Reasonable Payback Period Significant Savings Over 20 Years Redesign Seems Beneficial Pending Owner TYLER LOBB – MECHANICAL OPTION

27 Acknowledgments Thank You! LONGWOOD AT OAKMONT HEALTHCARE CENTER
AE Department - Advisor Dr. Freihaut Reese Engineering - James Hackman, P.E. - Tim Scharf, P.E. - Sam Snyder - Brian Walker, P.E. AE Students - Doug Boswell - Steve Haines - Jason Witterman - Kristin Maruszewski TYLER LOBB – MECHANICAL OPTION

28 LONGWOOD AT OAKMONT HEALTHCARE CENTER
Questions? TYLER LOBB – MECHANICAL OPTION

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