University of Delaware University of Delaware Center for the Arts - - PowerPoint PPT Presentation

University of Delaware University of Delaware Center for the Arts Center for the Arts

Newark, DE Newark, DE

Karen Schulte Karen Schulte Mechanical Option Mechanical Option Spring 2006 Spring 2006

Presentation Outline Presentation Outline

• Project Information

Project Information

• Building Information

Building Information

• Existing Conditions

Existing Conditions

• Redesign Goals

Redesign Goals

• Mechanical Redesign

Mechanical Redesign

• Structural Analysis

Structural Analysis

• Acoustical Analysis

Acoustical Analysis

• Conclusions

Conclusions

• Acknowledgements

Acknowledgements

• Questions

Questions

Project Information Project Information

• Location

Location – – Newark, DE Newark, DE

• Building Use

Building Use – – Performing Arts Center Performing Arts Center

• Delivery Method

Delivery Method – – Design Design-

• Bid

Bid-

• Build

Build

• Construction

Construction – – May May 2004 to June 2006 2004 to June 2006

• 2

2nd

nd of 3 bid package

• f 3 bid package

construction project construction project

Project Team Project Team

• Owner

Owner – – University of Delaware University of Delaware

• Architect

Architect – – Ayers Saint Gross Ayers Saint Gross

• Construction Manager

Construction Manager – – Whiting Turner Whiting Turner

• MEP Engineer

MEP Engineer – – Mueller Associates Mueller Associates

• Structural Engineer

Structural Engineer – – McLaren McLaren Engineering Engineering Group Group

• Civil Engineer

Civil Engineer – – Tetra Tech Tetra Tech

• Acoustical Consultant

Acoustical Consultant – – Kirkegaard Kirkegaard Associates Associates

Building Information Building Information

• 92,000 sq ft

92,000 sq ft

• Building uses

Building uses

– – Recital Hall Recital Hall – – Proscenium Theater Proscenium Theater – – Orchestra Rehearsal Room Orchestra Rehearsal Room – – Theater Rehearsal room Theater Rehearsal room – – Practice Rooms Practice Rooms

• 2

2” ” Open joint complete separation Open joint complete separation between structural systems between structural systems

Existing Conditions Existing Conditions

• Mechanical

Mechanical

– – 6 Air Handling Units 6 Air Handling Units

• 4 constant volume single zone

4 constant volume single zone

• 2 variable air volume

2 variable air volume

– – Chilled water and steam provided by the Chilled water and steam provided by the university university

Redesign Goals Redesign Goals

• Primary redesign goal

Primary redesign goal

– – Implement an Implement an underfloor underfloor air distribution system in air distribution system in the Proscenium Theater the Proscenium Theater

• Secondary redesign goals

Secondary redesign goals

– – Improved indoor air quality Improved indoor air quality – – Reduced outdoor airflow Reduced outdoor airflow – – Reduced supply fan Reduced supply fan horsepower horsepower

Underfloor Underfloor Air Distribution Air Distribution

• Conditioned air supplied

Conditioned air supplied from plenum from plenum

– – Pressurized Plenum Pressurized Plenum

• Passive Diffusers

Passive Diffusers

– – Zero Zero-

• Pressure Plenum

Pressure Plenum

• Active Diffusers

Active Diffusers

• Warmer supply air

Warmer supply air temperatures temperatures

• Stratification

Stratification

• Ceiling plenum return

Ceiling plenum return

– – Collection of contaminants Collection of contaminants – – Ceiling lighting loads Ceiling lighting loads

Mechanical Redesign Mechanical Redesign

Zone 1 Zone 2 Zone 3 Zone 4 Spot Booth Orchestra Pit Stage

Barrier Ceiling Catwalk Roof

Mechanical Redesign Mechanical Redesign

• Underfloor

Underfloor System System

– – Airflow Airflow – – 14,200 14,200 cfm cfm – – Cooling Coil Capacity Cooling Coil Capacity – – 315 315 Mbh Mbh – – Minimum OA % Minimum OA % -

• 22%

22%

• 20% overall reduction

20% overall reduction

– – Supply Air Fan Static Supply Air Fan Static Pressure Pressure – – 2.5in WG 2.5in WG

• Overhead System

Overhead System

– – Airflow Airflow – – 7,900 7,900 cfm cfm – – Cooling Coil Capacity Cooling Coil Capacity – – 420 420 Mbh Mbh – – Minimum OA % Minimum OA % -

• 44%

44% – – Supply Air Fan Static Supply Air Fan Static Pressure Pressure – – 5.0in WG 5.0in WG

Structural Analysis Structural Analysis

• First Level

First Level

– – Depress foundation and slab on grade 4 Depress foundation and slab on grade 4’ ’ – – Elevated slab with grouted CMU blocks for support Elevated slab with grouted CMU blocks for support – – Cut minimum amount of rebar for diffusers Cut minimum amount of rebar for diffusers

• Second Level

Second Level

– – Elevated slab with grouted CMU blocks for support Elevated slab with grouted CMU blocks for support – – Increase beam and column sizes to support increased Increase beam and column sizes to support increased weight of balcony weight of balcony – – Cut minimum amount of rebar for diffusers Cut minimum amount of rebar for diffusers

1 1st

st Level Structural Analysis

Level Structural Analysis

2 2nd

nd Level Structural Analysis

Level Structural Analysis

2 2nd

nd Level Structural Analysis

Level Structural Analysis

Acoustical Analysis Acoustical Analysis

• Proscenium Theater

Proscenium Theater

– – Acoustically Critical Acoustically Critical

• RC 18

RC 18-

• 22 (N)

22 (N)

– – Underfloor Underfloor Air Distribution Air Distribution

• RC

RC-

• 17 (N)

17 (N)

• NC

NC-

• 16

16

Conclusions Conclusions

• Improved indoor air quality

Improved indoor air quality

• Increased required airflow

Increased required airflow

• Decreased minimum amount of outdoor

Decreased minimum amount of outdoor air air

• Decreased cooling coil load

Decreased cooling coil load

• Increased coordination with concrete

Increased coordination with concrete contractor and placement of diffusers contractor and placement of diffusers

• Meets acoustical criteria

Meets acoustical criteria

Acknowledgements Acknowledgements

• AE Faculty

AE Faculty

• AE Colleagues

AE Colleagues

• Mueller Associates

Mueller Associates

• Family

Family

• Friends (That means you,

Friends (That means you, Spisis Spisis) )

Questions? Questions?

1 1st

st Level Diffuser Layout

Level Diffuser Layout

2 2nd

nd Level Diffuser Layout

Level Diffuser Layout