Faculty Jury Presentation (PowerPoint)
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Interdisciplinary Science & Engineering Building (ISEB) Newark, DE Johnathan Peno Mechanical Option Final Thesis Presentation Johnathan Peno Mechanical Option Spring 2011 Advisor: Dr. Treado Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview Size: 194,000 SF • Existing Conditions Construction Period: Spring 2011 - Fall 2013 • System Evaluation Occupancy Type: Lab, Education, Office • Ventilation Load Reduction Project Budget: $140M • Electrical System Integration Construction Budget: $105M • Conclusions Project Delivery Method: Design-Bid-Build Architect: Ayers Saint Gross Mechanical Engineer: Owner: Mueller Associates The University of Delaware N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Building Overview • Existing Conditions N • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions N Presentation Outline • Introduction • Building Overview Existing Conditions • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Water/Steam Side • CHW to Building from ECUP (1350 tons) • Building Cooling • HX to Lab Process CHW • Steam-Water HX Fed by Campus Steam Loop (19,000 PPH) • Heat/Preheat Needs • Domestic HW • Electric Standby Chiller for Critical Spaces • Condenser Heat in Preheat/Reheat Loop • Fluid Coolers on Roof N Presentation Outline • Introduction • Building Overview Existing Conditions • System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Air Side 10 Total Air Handling Units • AHU 1, 2 & 10 = Recirculating • Rest = 100% Outdoor Air • Enthalpy Wheel/Heat Pipe • VAV with terminal reheat (HW coils) • Building Direct Digital Control System N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions Mechanical Option Newark, DE System Evaluation • Building Overview • Existing Conditions Johnathan Peno • Lab Buildings = High Ventilation Loads N • Instructional Laboratories • Less Stringent Environmental Constraints • Labs & Non-Labs on Same AHUs ( 3 & 4 ) • Goals: • Reduce Ventilation Energy Consumption • Maintain Occupant Safety Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) System Evaluation • Ventilation Load Reduction • Electrical System Integration • Conclusions Mechanical Option Newark, DE System Evaluation • Building Overview • Existing Conditions Johnathan Peno • Lab Buildings = High Ventilation Loads • Instructional Laboratories • Lower Hood Densities • Less Stringent Environmental Constraints • Labs & Non-Labs on Same AHUs ( 3 & 4 ) • Goals: • Reduce Ventilation Energy Consumption • Maintain Occupant Safety N Presentation Outline • Introduction • Ventilation Load Reduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Redesign Approach 1 Approach 1 • Separate Spaces • Demand Based ACH • Passive Chilled Beams • Approach 2 • Electrical System Integration • Conclusions 3 Step Process to Reduce Building Ventilation Loads • Separate Lab and Non-Lab Spaces • Lower Air Change Rates • Implement Chilled Beam System N Presentation Outline • Introduction • Ventilation Load Reduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Step 1) Separate Lab & Non-Labs • Approach 1 N AHU 3 (Lab & Non) AHU 4 (Lab & Non) AIR SUPPLIED TO NON-LAB SPACES Separate Spaces • Demand Based ACH 25000 • Passive Chilled Beams 20000 • Approach 2 • Electrical System Integration 2,106 OUTDOOR AIR 15000 SUPPLY AIR (CFM) RECIRC AIR 24,440 22,342 10000 AHU 4 (Labs only) 5000 • Conclusions AHU 3 (Non only) 0 0 1 Base Design 2 Redesign 2 Mechanical Option Newark, DE Approximate Hourly ACH Reduction Lab Ventilation Rates of DCV vs. Set 12/6ACH • Ventilation Load Reduction • Conclusions DCV 6 Set 12/6ACH 4 2 AM 0 AM • Electrical System Integration Redesign: Adjust ACH Rate Based on Demand 8 4: 00 • Approach 2 Current Design: 12/6 ACH (Occ/UnOcc) 10 AM • Passive Chilled Beams 12 2: 00 Demand Based ACH Minimum Air Change Rates In Labs 14 12 :0 0 • Separate Spaces Lab Occupant Safety: ACH (air changes per hour) Approach 1 AM 8: 00 AM 10 :0 0 AM 12 :0 0 PM 2: 00 PM 4: 00 PM 6: 00 PM 8: 00 PM 10 :0 0 PM • Introduction Johnathan Peno 6: 00 Presentation Outline Interdisciplinary Science & Engineering Building (ISEB) Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE System Diagram • Ventilation Load Reduction • Approach 1 • Separate Spaces Step 2) Implement Demand Based ACH Control System Demand Based ACH • Room Sensors • Passive Chilled Beams • Data Routers • Approach 2 • Electrical System Integration • Conclusions • Sensor Suite • DDC System Illustration Provided by Aircuity Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Separate Spaces • Demand Based ACH Passive Chilled Beams • Approach 2 • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Passive Chilled Beam Step 3) Lab Passive Chilled Beam System • 12ACH Ventilation Load Dictates • Lower ACH Cooling Load May Dictate • Implement Parallel Cooling System instead of bringing in excess OA Photo: Halton Passive Chilled Beam Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Separate Spaces • Demand Based ACH Passive Chilled Beams • Approach 2 • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Newark, DE CFD Analysis Goal: Feasibility of Passive Chilled Beam System Design Variables: • Diffuser Pattern • Chilled Beam Layout Model: Turbulence Model: Standard K-e Differencing Scheme: Hybrid Johnathan Peno Mechanical Option Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Separate Spaces • Demand Based ACH Passive Chilled Beams • Approach 2 • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Newark, DE Diffuser Pattern Vertical vs. Horizontal Johnathan Peno Mechanical Option Vertical Patterns Horizontal Patterns Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Separate Spaces • Demand Based ACH Passive Chilled Beams • Approach 2 • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Row Layout Newark, DE Chilled Beam Layout Row vs. Perimeter Perimeter Layout Presentation Outline • Introduction • Ventilation Load Reduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE CFD Analysis Conclusion • Approach 1 • Separate Spaces Perimeter Beam + Horizontal Pattern • Demand Based ACH Passive Chilled Beams • Approach 2 • Electrical System Integration • Conclusions • Effectively Cooled Room to Design 72F • Acceptable Temp. Gradient (Standard 55 +/- 3oC) Ave. Room Temp=71.78oF Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 Interdisciplinary Science & Engineering Building (ISEB) • Passive Chilled Beams • Approach 2 • Electrical System Integration • Conclusions Mechanical Option Newark, DE Approach 1 Conclusions • Separate Spaces • Demand Based ACH Johnathan Peno Chilled Water Steam Electricity Payback Period Approach 1 -2% -15% -1% 4.1 1.2 . . w/ Chilled Beams w/o Chilled Beams X Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Approach 2 Design • Savings • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 2 • Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Approach 2 Design • Savings • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 2 • Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Approach 2 Design • Savings • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 2 • Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Approach 2 Design • Savings • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 2 • Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Approach 2 Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 2 • Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. Design • Savings • Electrical System Integration • Conclusions GreenHeck Low Profile Cabinet Centrifugal Fan N Presentation Outline • Introduction • Ventilation Load Reduction • Approach 1 • Approach 2 Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 2 • Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. Design • Savings • Electrical System Integration • Conclusions GreenHeck Low Profile Cabinet Centrifugal Fan N Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) • Approach 2 Mechanical Option Newark, DE • Ventilation Load Reduction • Approach 1 Johnathan Peno Chilled Water Steam Savings 24,898 ton-hrs 256 Mbtu Chilled Water Steam Electricity Payback Period Approach 2 -2% -5% 0% 3.3 • Design Savings • Electrical System Integration • Conclusions Presentation Outline • Introduction • Ventilation Load Reduction • Electrical System Integration Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Existing Electrical • 34.5 kV service entrance feeders Existing Conditions • Approach 1 • Approach 2 • Conclusions • Dual primary-secondary doubled ended unit substation • (2) medium voltage fused switches, Indoor substation • Transformers Step 34.5 kV 480Y/277 V • 3000A main-tie-main distribution section. Existing Conditions Presentation Outline • Introduction • Ventilation Load Reduction • Electrical System Integration Interdisciplinary Science & Engineering Building (ISEB) Newark, DE Electrical Integration • 1000A Busway serving Instructional Wing Existing Conditions • Approach 1 • Approach 2 • Conclusions • 480/277 208/120 Xformer • 400A MDP (Ground Floor) • New 100A , 32 pole Equipment Panels Johnathan Peno Mechanical Option Existing Conditions Presentation Outline • Introduction • Ventilation Load Reduction • Electrical System Integration • Existing Conditions Approach 1 • Approach 2 • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 1 Additions Fan Coil Unit • Blower Motors • Electric Heaters MDP DRGC Location Size Previous Load Added Load New Amp Draw Elec Rm 115 400 Amps 110,082 VA 26,704 379 Amps Okay? Yes Future Growth 5% Electrical Equipment Affected Presentation Outline • Introduction • Ventilation Load Reduction • Electrical System Integration • Existing Conditions • Approach 1 Approach 2 • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Approach 2 Additions Transfer Fan Motors Fan Coil Units • Blower Motors • Electric Heaters MDP DRGC Location Size Previous Load Added Load New Amp Draw Elec Rm 115 400 Amps 110,082 VA 29,767 388 Amps Okay? Yes Future Growth 3% Electrical Equipment Affected Presentation Outline • Introduction • Ventilation Load Reduction Interdisciplinary Science & Engineering Building (ISEB) Johnathan Peno Mechanical Option Newark, DE Recommendations • Electrical System Integration • Conclusions Recommendations • Acknowledgements • Questions Approach 1 ( minus Chilled Beams) • Most Economical (1.2 years) • Highest Level of Occupant Safety (IEQ) - Thanks to Room Sensors Presentation Outline • Introduction • Ventilation Load Reduction • Electrical System Integration • Conclusions Interdisciplinary Science & Engineering Building (ISEB) Newark, DE Acknowledgements Family Friends • Recommendations AE Department Acknowledgements Mueller Associates • Questions AIG Architects University of Delaware Johnathan Peno Mechanical Option Presentation Outline • Introduction Interdisciplinary Science & Engineering Building (ISEB) Newark, DE • Ventilation Load Reduction • Electrical System Integration • Conclusions • Recommendations • Acknowledgements Questions Questions? Johnathan Peno Mechanical Option
