Architectural & Engineering Services for Air Conditioning Alleghany High School

Transcription

1 February 7, 2011 Architectural & Engineering Services for Air Conditioning Alleghany High School October 1, 2012

2 Who We Are All Architectural/Engineering Services In-House Total Staff of 36 Roanoke Office School Specialists (New & Renovations) LEED Accredited Professionals Vast Comparable Experience Hired by APS on 2/6/12 to Perform Study of Alleghany High School, Delivered to Owner 4/26/12.

3 Project Team Owner and Client Alleghany County Public Schools Project Principal John A. Garland, PE Project Manager Granville E. Grant, CPD Architects D. Chris Venable, AIA Douglas G. McCart, AIA Mechanical Engineers David P. Feron, PE John A. Garland, PE Jerry L. Kinzie, PE Electrical Engineers Beau S. Montgomery, PE Christopher A. Main Structural Engineers Ronald W. Rodkey, PE Jacqueline Mayrosh, PE Plumbing Engineers Seth A. Talmadge Granville E. Grant, CPD Civil Engineers Michael A. Rakes, PE Cassandra Z. Van Hyning, PE

4 Botetourt County Schools Buchanan Elementary HVAC / Roof Troutville Elementary HVAC / Roof Cloverdale Elementary HVAC / Roof Cloverdale Elementary Windows / Doors Lord Botetourt High School Science / Admin Additions Breckinridge Elementary School HVAC / Roof Botetourt Co. Schools Administration Building HVAC / Roof

5 Roanoke County Schools Glenvar High School Geothermal HVAC System Northside High School Geothermal HVAC System Northside Middle School Cave Spring Middle School Geothermal HVAC System Cave Spring Elementary School Fort Lewis Elementary School Back Creek Elementary School Bent Mountain Elementary School HVAC Replacement for 4 High Schools, 4 Middle Schools & 10 Elementary Schools

6 Tazewell County Schools Tazewell High School HVAC Replacement & Electrical Upgrades Richlands High School HVAC Replacement & Electrical Upgrades Tazewell Middle School HVAC Replacement Graham Middle School HVAC Replacement

7 Rockbridge County Schools Fairfield Elementary School - Renovations / Additions Geothermal Heating & Cooling System Natural Bridge Elementary School - Renovations / Additions Geothermal Heating & Cooling System Effinger Elementary School Renovations / Additions Geothermal Heating & Cooling System Central Elementary School Renovations / Additions Mountain View Elementary School Renovations / Additions Water Source Heat Pump Maury River Middle School Renovations / Additions Geothermal Heating & Cooling System

8 Northside High School Geothermal Heating & Cooling System

9 Eastern Montgomery Elem. School Water Source Heat Pump System

10 Kate Collins Middle School Geothermal Heating & Cooling System

11 Fairfield Elementary School Geothermal Heating & Cooling System

12 Life-Cycle Costs Fairfield Elementary School Rockbridge County, VA Before Construction After Construction Size of School 30,000 SF 57,245 SF Total Power Cost $60,678 (2 year average) $59,381 (5 year average) Increased Construction Cost Life-Cycle Payback $100,000 Less than 3 Years

13 Life-Cycle Costs Natural Bridge Elementary School Rockbridge County, VA Before Construction After Construction Size of School 53,600 SF 66,260 SF Total Power Cost $50,069 (2 year average) (No A/C) $54,811 (All A/C) Cost Per Square Foot $0.93 / SF $0.83 / SF 10% Less Utility Cost Even with the Addition of Air Conditioning

14 Alleghany High School

15 Alleghany High School

16 Alleghany High School

17 What We Know High School Originally Built in 1963 with Improvements in 1970, 2003 & ,040 Square Feet New Windows, Doors & Reflective Coatings In Place Existing Steam Heating System is Antiquated, Inefficient & Piping Infrastructure Leaks Code Required Ventilation Not Provided HVAC Pneumatic Controls are Obsolete & Don t Perform Rockbridge Environmental Performed Environmental Testing on 4/30/12 ACM s Exist with Domestic Water Pipe Insulation, Floor Tile & Pipe Insulation Mastic at Ceiling Mounted HVAC Equipment in Band Room. Existing Ceilings are Non-ACM s Existing Rooftop Air Conditioning Units are Inefficient Majority of Existing Heating & Cooling Equipment has Exceeded Life Expectancy Existing Electrical Service will Not Accommodate Needed HVAC Equipment Replacement Existing Ceilings Require Replacement Due to Deterioration From Poor Humidity Control Utility Operational Costs (Electricity, Fuel Oil) are Extremely High

18 Project Considerations Indoor Air Quality Issues Should Be Addressed Ventilation Air Should Be Controlled Separately Control Quantity of Ventilation Air Use Use of Energy Recovery Equipment Ventilation Should Be Integrated with Heating & Cooling System

19 Project Considerations High Efficiency HVAC Light Fixture Replacement Quick Payback Occupancy Controls Fire Alarm System Replacement New Energy Management System (Johnson and Trane) Water Saving Measures Capital Costs Payback Should Not Exceed a 10-Year Period

20 Project Considerations Operation & Maintenance of the New System is Very Important Accessibility Indoor vs. Outdoor Skilled Labor Required Availability of Parts Life Expectancy Proprietary Systems

21 Project Considerations Aesthetics Are Important Maintain Current Attractive Building Façade Interior Classroom Appearance Appropriate Equipment Selections Exposed Ductwork, Piping, Conduit, etc. with Ceiling Replacement, All Concealed Cost Benefit Ratio

22 AHS: Existing Exterior

23 AHS: Existing HVAC

24 AHS: Existing HVAC

25 AHS: Existing Lighting

26 Mechanical Budget

27 Electrical Budget

28 Recommended Project Budget New HVAC System: $4,250,000 Lighting (8-year payback) $246,500 JRTC Boiler $60,000 Total Project Budget $4,556,500 Current Electric Cost: $85,000+ New Electric Utility Cost: $50,000 Current Fuel Oil Cost: $200,000+ New Fuel Oil Cost: $0 Conclusion: Save $230,000 per Year on Utility Costs

29 Energy Conservation Recommended HVAC System Geothermal Heating & Cooling Available Year Round Easy Zone Control Accommodates Outdoor Ventilation Lower Initial Equipment Cost (Heating & Cooling Options) Payback Within 10 Years Flexible Easy to Expand System Phased Construction Pre-Heat Domestic Hot Water Less Mechanical Space HVAC Controls

30 Geothermal Field Five Proposed Field Locations Evaluated Recommend Upper Playfield Tested Test Results Very Good (Thermal Conductivity Test Performed by GRTI Following Test Bore by Richard Simmons Well Drilling) Well Field Locations Considered

31 Geothermal Field Geothermal Energy is heat (thermal) derived from the Earth (geo). It is the thermal energy contained in the rock and fluid in the earth s crust. It s Safe, Earth-friendly & Saves Money

32 Preferred Project Schedule OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEPT OCT NOV DEC School Board Presentation Oct. 1, 2012 Construction Documents 2.5 months Nov. 1, 2012 Jan. 15, 2013 Bidding & Negotiation 1month Jan. 15, 2013 Feb. 15, 2013 Award Mar. 1, 2013 Submittals /Demolition /Piping 3.5 months Mar. 1, 2013 Jun. 15, 2013 Const. Admin. On-Si t e: Geofi eld 3.5 months Mar. 1, 2013 Jun. 15, 2013 Mechanical Room 3.5 months May 1, 2013 Aug. 15, 2013 Classrooms 2 months Jun. 15, 2013 Aug. 15, 2013

33 Phased Project Schedule What Is A Phased Project? Vacating Portions of the Building for Contractor s Use (Possibly Up to 6 Phases of Construction) Disadvantages of Phased Construction 10 Months to Complete vs. 5.5 Months More Work Around Students Approximate 10% Higher Cost More Interruptions in Services While School is in Session Noise / Dust, etc. Issues During Occupancy

34 Spectrum s Next Step Finalize & Obtain Study Approval Decide Mechanical Option Preferred Decide on Energy Savings Opportunities Finalize Scope of Work (Air Conditioning, Heating, Lighting, Ceilings, Abatement) Finalize Project Budget Determine a Project Schedule Corresponding with Budget & Occupancy Requirements Complete Contract Documents Project Bid Advertisement Construction

35 Exceeding the Expected