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- -Bid Bid- -Build Build Design � Construction � Construction – – May May 2004 to June 2006 2004 to June 2006 nd of 3 bid package 2 nd � 2 � of 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 Air Distribution Air Distribution Underfloor � 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 Roof Barrier Ceiling Spot Zone 4 Booth Catwalk Zone 3 Zone 1 Stage Zone 2 Orchestra Pit

Mechanical Redesign Mechanical Redesign � Underfloor Underfloor System System � Overhead System Overhead System � � – Airflow Airflow – – 14,200 14,200 cfm cfm – Airflow Airflow – – 7,900 7,900 cfm cfm – – – Cooling Coil Capacity Cooling Coil Capacity – – – Cooling Coil Capacity Cooling Coil Capacity – – – – 315 Mbh Mbh 420 Mbh Mbh 315 420 – Minimum OA % Minimum OA % - - 22% 22% – Minimum OA % Minimum OA % - - 44% 44% – – � 20% overall reduction � 20% overall reduction – Supply Air Fan Static Supply Air Fan Static – – Supply Air Fan Static Supply Air Fan Static – Pressure – – 2.5in WG 2.5in WG Pressure Pressure – – 5.0in WG 5.0in WG Pressure

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 –

st Level Structural Analysis 1 st Level Structural Analysis 1

nd Level Structural Analysis 2 nd Level Structural Analysis 2

nd Level Structural Analysis 2 nd Level Structural Analysis 2

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?

st Level Diffuser Layout Level Diffuser Layout 1 st 1

nd Level Diffuser Layout Level Diffuser Layout 2 nd 2