david anderson mechanical option

David AndersonMechanical Option

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

Clemson University’s Advance Material Research Laboratory

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions Photo from Google Earth

Building Background

Project Team

Owner: Clemson UniversityArchitecture Firm: IDC ArchitectsContractor: Manhattan ConstructionLandscape Architect: Arbor EngineeringInterior Designer: IDC Architects

Location: Anderson, South Carolina

Clemson University’s Advance Material Research Laboratory

$18.5 Million Completed July 2004

Design-Bid-Build

Photo from Google Earth

First LEED Certified Facility First LEED Certified Facility In South CarolinaIn South Carolina

LEED SILVERLEED SILVER

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

Building Background

Location: Anderson, South Carolina

Occupant: Clemson University

Size: 111, 270 sq. ft.

Occupancy: OfficesResearch LaboratoriesClean RoomsConferencing

Clemson University’s Advance Material Research Laboratory

Laboratory Support

Shared Spaces/Circulation

Support/Services

Offices

Laboratories

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding Background

Existing ConditionsMechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

Existing Conditions

Electrical:

•(1) 2500kVA Transformer •(5) 30-112 kVa Transformers

•300 kW Diesel Fired Stand-By Generator

•24” x 48” Fluorescent Fixtures

Lighting:

•T8 and T5 Lamps

•Quad Compact Fluorescents

Structural:

•Steel Construction

•Concrete Slabs

•Ground: 5” Slab On Grade•4x4 Welded Wire Fabric•#4 Bars In Pits and Recesses

•Elevated Floors: 2-1/2” Slab •1-1/2” Deck

Existing Conditions

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding Background

Existing ConditionsMechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

Existing Conditions Existing Conditions

Mechanical:•(15) AHU’s

•(3) serve VAV Boxes

•(2) Cooling Towers•375 Ton, 1,125 gpm

•(3) Chillers•266.6 Ton, 750 gpm

•(2) Gas Fired Boilers•3,348 MBH each

•(1) Electric Boiler•4,094 MBH

•(3) Energy Recovery Coils

Mechanical:

•(4) MAH’s

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

Mechanical Redesign

Goals and Objectives: Optimize Ventilation and Reduce Energy

Proposal:

•Replace CAV/VAV system

•Incorporate Dedicated Outdoor Air System (DOAS) with Integrated Active Chilled Beams

Justification:

•Smaller Equipment Sizes, Reduction of Costs

•Life Cycle Cost Reduced

•More Economical for LaboratoriesDesign:

•Total Heat Recovery Incorporated

•Sensible Load Met by Chilled Beams

Mechanical Redesign

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled Beams

Lighting RedesignConstruction Effects

ConclusionsAcknowledgements

Questions

DOAS

Existing Conditions:Anderson, South Carolina

Outdoor Design DB: 93°F Summer19°F Winter

Indoor Design DB: 74°F RH: 50% DPT: 54°F

DOAS

DOAS Configuration

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical Redesign

DOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

DOAS

Enthalpy Wheel Selection:Xetex AIRotor 2500

Contamination?

Purged Enthalpy Wheel

Selection of Chilled Beams

Building’s Total Sensible Load: Qtotal= 1,139,294 Btu/h

Sensible Load Achieved by DOAS QDOAS= 97,824 Btu/h

Sensible Load To Be Met by Chilled Beams QBeams= 1,041,469 Btu/h

788 Active Chilled Beams -TROX—DID300@76 W/m2 (7.06 W/ft2)

Chilled BeamsChilled Beams

•Maintance

•Ventilation

•Piping

•Acoustics

•Coordination

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical Redesign

DOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

DOAS/Chilled Beams DOAS/Chilled Beams

AHU Resizing Annual Cost and Equipment Break Down

AHU #Original SA(cfm)

Design OA(cfm) DOAS Resized OA (cfm)

1 4000 1800 594

2 4500 1800 594

3 5700 1800 594

4 5200 1800 594

5 6300 6300 2079

6 5800 5550 1832

7 5000 400 132

33% Reduction

Totals 85000 31150 10280

Existing Components

Clemson AMRL

($)

Air System Fans 1,379,405

Cooling 925,442

Heating 7,019

Pumps 88,394

Cooling Tower Fans 932,159

HVAC Sub-Total 3,332,418

Lights 2,389,184

Electric Equipment 3,016,649

Non-HVAC Sub-Total

5,405,833

Grand Total 8,738,251

Proposed Components

Clemson AMRL

($)

Air System Fans 69,342

Cooling 229,434

Heating 3,354

Pumps 169,355

Cooling Tower Fans 115,958

HVAC Sub-Total 587,444

Lights 2,378,390

Electric Equipment 3,003,020

Non-HVAC Sub-Total

5,381,410

Grand Total 5,968,853

32% Reduction

DOAS Ventilation Air Based On 20 scfm/person

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled Beams

Lighting RedesignConstruction Effects

ConclusionsAcknowledgements

Questions

Lighting RedesignLighting Redesign

ASHRAE Standard 90.1-2004•Office Buildings

Clemson University’s AMRL•1.32—1.95 W/ sq. ft.

Proposal:•Remove 40 Watt T8•Install 32 Watt T5

Conclusions:

•High Efficient T5•Less Wattage•Outputs Similar

20% Reduction

Proposed:1.06—1.56 W/sq.ft

Design Lumens/Lamp Lumens/L’aire Watts

Existing 2850 8550 41,155

Proposed 2950 8850 34,243

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

AcknowledgementsQuestions

Construction Effects Construction Effects

Mechanical System First Costs:

Existing System: •Total Cost: $3,024,000

Proposed System:•Beam Cost: $2,764,000•Equipment/Labor: $2,894,160•Total Cost: $5,658,000

$2,634,000 Increase in First Cost

•Schedule Impacts

•Labor

•Ductwork

•System Sizes

•Pumps

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction Effects

ConclusionsAcknowledgements

Questions

Conclusions Acknowledgements

Overall Costs:

SystemExisting

CAV/VAV

Proposed DOAS/

Chilled Beams

Initial Cost $3,024,000 $5,658,000

Yearly Cost $8,738,251 $5,968,853

Total First Year Cost

$11,762,251 $11,626,853

47%

32%

$135,398

Year 1

•My Family and Friends

•Faculty and Staff of AE

•Clemson University

•IDC Architects

Clemson University’s Advance Material Research Laboratory

Presentation AgendaBuilding BackgroundExisting Conditions

Mechanical RedesignDOAS/Chilled BeamsLighting Redesign

Construction EffectsConclusions

Acknowledgements

Questions