Thesis Final Presentation Presentation Outline Project Team - - PDF document

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Thesis Final Presentation Presentation Outline Project Team - - PDF document

Sep 04, 2023 531 likes •865 views

Thesis Final Presentation Presentation Outline Project Team Project Background Redesign Goals Mechanical Redesign Conclusions Questions Project Team General Contractor and CM Whiting Turner Architect

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SLIDE 1

Thesis Final Presentation

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SLIDE 2

Presentation Outline

  • Project Team
  • Project Background
  • Redesign Goals
  • Mechanical Redesign
  • Conclusions
  • Questions
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SLIDE 3

Project Team

  • General Contractor and CM – Whiting Turner
  • Architect – Hugh Newell Jacobsen
  • Landscape Architect – P.E.L.A. Design
  • Mechanical, Electrical, Plumbing, and Fire Protection

Engineers – EBL Engineers

  • Civil Engineer – A. Morton Thomas & Associates
  • Structural Engineer – McMullan & Associates
  • Owner – The University of Maryland
  • User – The University of Maryland Alumni

Association

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SLIDE 4

Project Background

  • Admin Building
  • Alumni Hall
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SLIDE 5

Project Background

  • Admin Building
  • Alumni Hall
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SLIDE 6

Project Background

Admin Building

  • AHU-1 Zones
  • AHU-2 Zones
  • AHU-3 Zones
  • AHU-4 Zones
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SLIDE 7

Project Background

Admin Building

  • AHU-1 Zones
  • AHU-2 Zones
  • AHU-3 Zones
  • AHU-4 Zones
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SLIDE 8

Project Background

Admin Building

  • AHU-1 Zones
  • AHU-2 Zones
  • AHU-3 Zones
  • AHU-4 Zones
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SLIDE 9

Project Background

Admin Building

  • AHU-1 Zones
  • AHU-2 Zones
  • AHU-3 Zones
  • AHU-4 Zones
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SLIDE 10

Project Background

  • Admin Building
  • Alumni Hall
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SLIDE 11

Project Background

Alumni Hall

  • Alumni Hall
  • Hall of Fame
  • MD Room
  • Reception Area
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SLIDE 12

Project Background

Alumni Hall

  • Alumni Hall
  • Hall of Fame
  • MD Room
  • Reception Area
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SLIDE 13

Project Background

Alumni Hall

  • Alumni Hall
  • Hall of Fame
  • MD Room
  • Reception Area
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SLIDE 14

Project Background

Alumni Hall

  • Alumni Hall
  • Hall of Fame
  • MD Room
  • Reception Area
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SLIDE 15

Project Background

  • Self-Contained Utility Building (SCUB)
  • Under-floor Air Distribution
  • Enthalpy Wheel System
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SLIDE 16

Redesign Goals

  • Mechanical

– Dedicated Outdoor Air System – Low Temperature Chilled Water – Low Temperature Supply Air

  • Electrical

– Resize for New Mechanical Equipment

  • Structural

– Resize for New Mechanical Equipment

  • Overall

– Lower First Cost – Reduce Energy Consumption – Improve Thermal Comfort

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SLIDE 17

Mechanical Redesign

Dedicated Outdoor Air System (DOAS)

  • FanCoil Units
  • Radiant Panels
  • Free Cooling, Cooling Tower
  • Enthalpy Wheel w/ Variable Air Volume System
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SLIDE 18

Mechanical Redesign

Results – Annual Costs

16,724 162,746 10,663 20,365 1,733 5,926 113,717 10,342 Enthalpy Wheel 3,528 175,942 10,342 19,754 1,806 6,553 133,632 3,855 DOAS_Radiant (12,435) 191,905 10,285 19,644 1,801 5,929 145,108 8,838 DOAS-FanCoil 179,470 10,508 20,069 1,712 6,748 132,972 7,461 Original $/yr $/yr $/yr $/yr $/yr $/yr $/yr $/yr Total Savings Total Electrical Equipment Lights Pumps Heating Cooling Air System Fans

  • 50,000

100,000 150,000 200,000 250,000 Original DOAS-FanCoil DOAS-Radiant EnthalpyWheel $/yr Electric Equipment Lights Pumps Heating Air System Fans Cooling

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SLIDE 19

Mechanical Redesign

Results – First Costs

40,219 93,765 51,879 41,887 Enthalpy Wheel 174,723 288,269 1971 150,047 43,141 33,109 DOAS_Radiant 105,387 158,933 83,629 46,816 28,488 DOAS-FanCoil 53,546 53,564 Original $ $ $ $ $ $ $ Additional Total Cooling Tower Panels FanCoil Units Enthalpy Wheels Air Handling Units

  • 50,000

100,000 150,000 200,000 250,000 Original DOAS-FanCoil DOAS-Radiant EnthalpyWheel $ AHU's EW's FCU's Panels CT

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SLIDE 20

Mechanical Redesign

Results – First Costs

40,219 112,083 18,318 51,879 41,887 Enthalpy Wheel 249,105 320,969 1971 150,047 32,700 43,141 33,109 DOAS_Radiant 87,069 158,933 83,629 46,816 28,488 DOAS-FanCoil 71,864 18,318 53,564 Original $ $ $ $ $ $ $ Additional Total Cooling Tower Panels FanCoil Units Enthalpy Wheels Air Handling Units

50000 100000 150000 200000 250000 300000 350000 $ Original DOAS- FanCoil DOAS- Radiant Enthalpy Wheel

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SLIDE 21

Mechanical Redesign

Results – Payback Comparison

2 40,219 16,724 Enthalpy Wheel 50 174,723 3,529 DOAS_Radiant Loss 105,387 (12,435) DOAS-FanCoil N/A Original yr $ $/yr Payback Additional First Cost Annual Savings

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SLIDE 22

Mechanical Redesign

Low Temperature Chilled Water

  • Utilize SCUB
  • Low Temperature Supply Air
  • Results
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SLIDE 23

Mechanical Redesign

Results – Annual Costs

(59,591) 239,061 10,393 19,851 1,612 14,774 184,487 7,944 Low Temperature Supply Air 3,660 175,810 10,508 20,069 1,712 6,748 129,312 3,801 Low Temperature Chilled Water 179,470 10,508 20,069 1,712 6,748 132,972 7,461 Original $/yr $/yr $/yr $/yr $/yr $/yr $/yr $/yr Total Savings Total Electrical Equipment Lights Pumps Heating Cooling Air System Fans

  • 50,000

100,000 150,000 200,000 250,000 300,000 Original LowTempCW LowTempSA $/yr Electric Equipment Lights Pumps Heating Air System Fans Cooling

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SLIDE 24

Mechanical Redesign

Results – Payback Comparison

Loss 1,559 (59,591) Low Temperature Supply Air 3,660 Low Temperature Chilled Water N/A Original yr $ $/yr Payback Additional First Cost Annual Savings

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SLIDE 25

Mechanical Redesign

Optimal System Results – Annual Costs

19,758 159,712 10,664 20,366 1,733 5,926 114,441 6,582 Optimal 16,724 162,746 10,663 20,365 1,733 5,926 113,717 10,342 Enthalpy Wheel 3,660 175,810 10,508 20,069 1,712 6,748 132,972 3,801 Low Temperature Chilled Water 179,470 10,508 20,069 1,712 6,748 132,972 7,461 Original $/yr $/yr $/yr $/yr $/yr $/yr $/yr $/yr Total Savings Total Electrical Equipment Lights Pumps Heating Cooling Air System Fans

  • 20,000

40,000 60,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 Original LowTempCW EnthalpyWheel Best $/yr Electric Equipment Lights Pumps Heating Air System Fans Cooling

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SLIDE 26

Mechanical Redesign

Optimal System Results – Payback Comparison

2.1 40,440 19,758 Optimal 2.4 40,219 16,724 Enthalpy Wheel 3,660 Low Temperature Chilled Water N/A Original yr $ $/yr Payback Additional First Cost Annual Savings

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SLIDE 27

Conclusions

  • Enthalpy Wheels with VAV System

and Low Temperature Chilled Water

  • Additional First Cost $40,440
  • Annual Savings $19,758
  • Payback = 2.1 years
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SLIDE 28

Questions?

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SLIDE 29

Bonus Rounds

Electrical Redesign – Sizing Circuit Breakers

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SLIDE 30

Bonus Rounds

Electrical Redesign – Sizing Panelboard PP5B and Transformer TR-5

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SLIDE 31

Bonus Rounds

Electrical Redesign – Resized Panelboards and Transformers for the Optimal System

(112.5) (73) (45) TR-7 (45) (36) (15) TR-5 400 353 200 PP7B 225 222 225 PP7A 100 76 50 PP5B 150 125 250 PP5A A (kVA) A (kVA) A (kVA) New Size Load Original Size

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SLIDE 32

Bonus Rounds

Structural Redesign