Straumann USA

1
Straumann USA
60 Minuteman Road Andover, MA
Kevin Kaufman Mechanical Option
The Pennsylvania State University Architectural
Engineering
2
Presentation Outline
Straumann USA

• INTRODUCTION
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Existing conditions
• Design Objectives
• Mechanical Alternatives
• Electrical Breadth
• Construction Breadth
• Life Cycle Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Building Background
Straumann USA

• Introduction
• EXISTING
• CONDITIONS
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Manufacturing Area
• Manufacturing storage and support areas
• Dental training and operatory
• Administrative offices

Kevin Kaufman Mechanical Option
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Original Project
Straumann USA

• Renovation of 153,000ft2
• Complete airside upgrade
• No central plant changes
• Construction May 2004 May 2005
• Cost 10.6 million

• Introduction
• EXISTING
• CONDITIONS
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Mechanical Systems
Straumann USA

• 9 VAV AHUs
• 1 CAV AHU
• 2 natural gas boilers
• (11.3 MBH)

• Introduction
• EXISTING
• CONDITIONS
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• 3 centrifugal chillers
• (750, 500, 350 tons)
• 2 cooling towers
• (750, 680 tons)

1st Floor
Mezzanine
Kevin Kaufman Mechanical Option
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Design Objectives
Straumann USA

• Introduction
• Existing
• Conditions
• DESIGN
• OBJECTIVES
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Educational experience
• Reduce annual energy costs
• Provide a lower 20 year LCC

Kevin Kaufman Mechanical Option
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System Comparisons
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Airside
• VAV vs DOAS
• Waterside
• Chillers
• Direct-fire Absorption
• Electric Centrifugal
• Waterside Free Cooling
• Series
• Parallel

Kevin Kaufman Mechanical Option
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VAV System Advantages
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Single system for ventilation and space cooling
• Full air side economizing available
• Lower pumping costs than DOAS

Kevin Kaufman Mechanical Option
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DOAS System Advantages
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Reduced fan energy costs
• Smaller air-handling units require less space and
  are cheaper
• Decouples sensible and latent loads

Kevin Kaufman Mechanical Option
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DOAS Rooftop Unit Zones
Straumann USA

• Reduced from 10 to 8 zones

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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DOAS Design
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Radiant panel capacity 54 Btu/ft2
• Space DPT 55F
• Water MWT 56.5F

Radiant Panel (Sterling)

• Ventilation rate ASHRAE 62.1
• Design Temperatures
• Winter 7.7F
• Summer 90.8F/73.7F

Kevin Kaufman Mechanical Option
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Annual Energy Cost Comparison
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Direct-fire Absorption Chiller
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Reduce electric load and demand
• Natural gas available on site
• Possibility for simultaneous heating and cooling

Absorption Chiller (Carrier)
Kevin Kaufman Mechanical Option
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Chiller Annual Energy Comparison
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Parallel
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Reject heat without a chiller
• Must be able to reject entire load

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Parallel
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Reject heat without a chiller
• Must be able to reject entire load

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Parallel
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Reject heat without a chiller
• Must be able to reject entire load

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Series
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Partially or completely rejects heat from chilled
  water
• Operates more hours than parallel
• Requires more complex controls

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Series
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Partially or completely rejects heat from chilled
  water
• Operates more hours than parallel
• Requires more complex controls

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Series
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Partially or completely rejects heat from chilled
  water
• Operates more hours than parallel
• Requires more complex controls

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Series
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Partially or completely rejects heat from chilled
  water
• Operates more hours than parallel
• Requires more complex controls

Kevin Kaufman Mechanical Option
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Waterside Free Cooling - Results
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Electrical Breadth
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• ELECTRICAL
• BREADTH
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Electrical Breadth
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• ELECTRICAL
• BREADTH
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Construction Breadth
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• CONSRUCTION
• BREADTH
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Construction Breadth
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• CONSRUCTION
• BREADTH
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Life Cycle Cost Analysis
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• LIFE CYCLE
• COST ANALYSIS
• Conclusions

Kevin Kaufman Mechanical Option
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Conclusions
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• CONCLUSIONS

• DOAS has a higher initial cost but has a lower
  annual operating cost and can be paid back in 3.7
  years.
• Absorption chillers increase annual operating
  costs.
• Series waterside free cooling adds a few
  additional hours of free cooling but will add
  more complex controls.

Kevin Kaufman Mechanical Option
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Acknowledgements
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• AE Department
• Mechanical Faculty
• Bruce Chappell
• William McGee
• Paul Petrilli

• Straumann USA
• Brickstone Companies
• Justin Bem
• Markus Benzenhofer

Questions?
Kevin Kaufman Mechanical Option
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Chiller Heater Feasibility
Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• MECHANICAL
• ALTERNATIVES
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

• Heating requirements 3222 hrs
• Simultaneous heating/cooling available 733 hrs
• Capable of meeting heating load 507 hrs (16)

Kevin Kaufman Mechanical Option
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Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Costs/ft2 Costs/ft2 Costs/ft2 Costs/ft2 Costs/ft2
Component Electric Electric Absorption Absorption
Component Straumann VAV Straumann DOAS Straumann VAV Straumann DOAS
Air System Fans 0.47 0.33 0.47 0.33
Cooling 0.42 0.41 0.70 0.60
Heating 0.28 0.13 0.28 0.13
Pumps 0.12 0.16 0.14 0.19
Cooling Tower Fans 0.06 0.06 0.09 0.06
HVAC Sub-Total 1.35 1.09 1.69 1.32
Lights 0.45 0.45 0.45 0.45
Electric Equipment 2.77 2.77 2.77 2.77
Non-HVAC Sub-Total 3.22 3.22 3.22 3.22
Grand Total 4.57 4.31 4.91 4.53
Component Energy (MMBTU) Energy (MMBTU) Energy (MMBTU) Energy (MMBTU)
Component Electric Centrifugal Chiller Electric Centrifugal Chiller Direct-fired Absorbtion Chiller Direct-fired Absorbtion Chiller
Component Straumann VAV Straumann DOAS/VAV Straumann VAV Straumann DOAS/VAV
Air System Fans 1,564 1,093 1,564 1,093
Cooling 1,229 1,202 5,838 5,072
Heating 1,250 616 1,250 616
Pumps 356 455 439 542
Cooling Tower Fans 156 155 246 146
HVAC Sub-Total 4,554 3,521 9,337 7,468
Lights 1,509 1,509 1,509 1,509
Electric Equipment 9,326 9,326 9,326 9,326
Non-HVAC Sub-Total 10,835 10,835 10,835 10,835
Grand Total 15,389 14,356 20,172 18,303
Kevin Kaufman Mechanical Option
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Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option
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Straumann USA

• Introduction
• Existing
• Conditions
• Design
• Objectives
• Mechanical
• Alternatives
• Electrical
• Breadth
• Construction
• Breadth
• Life Cycle
• Cost Analysis
• Conclusions

Kevin Kaufman Mechanical Option