Interdisciplinary Science & Johnathan Peno
description
Transcript of Interdisciplinary Science & Johnathan Peno
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE Final Thesis Presentation
Johnathan Peno
Mechanical OptionSpring 2011
Advisor: Dr. Treado
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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Size:
Construction Period:
Occupancy Type:
Project Budget:
Construction Budget:
Project Delivery Method:
Architect:
Mechanical Engineer:
Owner:
194,000 SF
Spring 2011 - Fall 2013
Lab, Education, Office
$140M
$105M
Design-Bid-Build
Ayers Saint Gross
Mueller Associates
The University of Delaware
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• IntroductionBuilding Overview• Existing Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
N
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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
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Building OverviewExisting Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
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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
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Building OverviewExisting Conditions• System Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
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System Evaluation
• Lab Buildings = High Ventilation Loads
• Instructional Laboratories• Less Stringent Environmental Constraints• Labs & Non-Labs on Same AHUs ( 3 & 4 )
• Goals:• Reduce Ventilation Energy Consumption• Maintain Occupant Safety
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Building Overview• Existing ConditionsSystem Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
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System Evaluation
• 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
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Building Overview• Existing ConditionsSystem Evaluation
• Ventilation Load Reduction• Electrical System Integration• Conclusions
N
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Redesign Approach 1
3 Step Process to Reduce Building Ventilation Loads
• Separate Lab and Non-Lab Spaces
• Lower Air Change Rates
• Implement Chilled Beam System
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
Approach 1• Separate Spaces• Demand Based ACH• Passive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
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Step 1) Separate Lab & Non-Labs AHU 3 (Lab & Non)
AHU 4 (Lab & Non)
AHU 3 (Non only)
AHU 4 (Labs only)0
24,44022,342
2,106
0
5000
10000
15000
20000
25000
SUPPLY AIR (CFM)
1 2
Base Design Redesign 2
AIR SUPPLIED TO NON-LAB SPACES
OUTDOOR AIR
RECIRC AIR
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1Separate Spaces• Demand Based ACH• Passive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
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Lab Occupant Safety:
Minimum Air Change Rates In Labs
Current Design: 12/6 ACH (Occ/UnOcc)
Redesign: Adjust ACH Rate Based on Demand
Lab Ventilation Rates of DCV vs. Set 12/6ACH
0
2
4
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12:0
0 AM
2:00
AM
4:00
AM
6:00
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
AC
H (
air
chan
ges
per
ho
ur)
DCV
Set12/6ACH
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
Approach 1• Separate SpacesDemand Based ACH• Passive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
Approximate Hourly ACH Reduction
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System Diagram
Step 2) Implement Demand Based ACH Control System
• Room Sensors
• Data Routers
• Sensor Suite
• DDC System
Illustration Provided by Aircuity
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Separate SpacesDemand Based ACH• Passive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
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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 PassiveChilled Beam
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Separate Spaces• Demand Based ACHPassive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
Passive Chilled Beam
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CFD AnalysisGoal:
Feasibility of Passive Chilled Beam System
Design Variables:• Diffuser Pattern• Chilled Beam Layout
Model:Turbulence Model: Standard K-eDifferencing Scheme: Hybrid
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Separate Spaces• Demand Based ACHPassive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
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Diffuser Pattern
Vertical vs. Horizontal
Vertical Patterns
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Separate Spaces• Demand Based ACHPassive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
Horizontal Patterns
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Chilled Beam Layout
Row vs. Perimeter
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Separate Spaces• Demand Based ACHPassive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
Row Layout
Perimeter Layout
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CFD Analysis Conclusion
Perimeter Beam + Horizontal Pattern
• Effectively Cooled Room to Design 72F
• Acceptable Temp. Gradient
(Standard 55 +/- 3oC) Ave. Room Temp=71.78oF
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Separate Spaces• Demand Based ACHPassive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
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X
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Separate Spaces• Demand Based ACH• Passive Chilled Beams
• Approach 2• Electrical System Integration• Conclusions
Approach 1Chilled Water -2%
Steam -15%Electricity -1%
Payback Period 4.1 w/ Chilled Beams1.2 w/o Chilled Beams
.
.
Approach 1 Conclusions
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• Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A.
Approach 2
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Approach 2
Design• Savings
• Electrical System Integration• Conclusions
N
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Approach 2
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Approach 2
Design• Savings
• Electrical System Integration• Conclusions
• Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N
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Approach 2
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Approach 2
Design• Savings
• Electrical System Integration• Conclusions
• Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N
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Approach 2
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Approach 2
Design• Savings
• Electrical System Integration• Conclusions
• Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N
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Approach 2
GreenHeck Low Profile Cabinet Centrifugal Fan
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Approach 2
Design• Savings
• Electrical System Integration• Conclusions
• Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N
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Approach 2
GreenHeck Low Profile Cabinet Centrifugal Fan
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Approach 2
Design• Savings
• Electrical System Integration• Conclusions
• Transfer air from Non-Labs to Labs as Make-Up Air In lieu of O.A. N
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Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction
• Approach 1• Approach 2
• DesignSavings
• Electrical System Integration• Conclusions
Approach 2Chilled Water -2%
Steam -5%Electricity 0%
Payback Period 3.3
SavingsChilled Water 24,898 ton-hrsSteam 256 Mbtu
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Existing Conditions
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction• Electrical System Integration
Existing Conditions• Approach 1• Approach 2
• Conclusions
• 34.5 kV service entrance feeders
• 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 Electrical
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Existing Conditions
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction• Electrical System Integration
Existing Conditions• Approach 1• Approach 2
• Conclusions
• 1000A Busway serving Instructional Wing
• 480/277 208/120 Xformer
• 400A MDP (Ground Floor)
• New 100A , 32 pole Equipment Panels
Electrical Integration
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MDP
DRGC
Location Elec Rm 115
Size 400 Amps
Previous Load 110,082 VA
Added Load 26,704
New Amp Draw 379 Amps
Okay? Yes
Future Growth 5%
Electrical Equipment Affected
Approach 1 Additions
Fan Coil Unit• Blower Motors• Electric Heaters
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction• Electrical System Integration
• Existing ConditionsApproach 1• Approach 2
• Conclusions
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Electrical Equipment Affected
Approach 2 Additions
Transfer Fan MotorsFan Coil Units
• Blower Motors• Electric Heaters
MDP
DRGC
Location Elec Rm 115
Size 400 Amps
Previous Load 110,082 VA
Added Load 29,767
New Amp Draw 388 Amps
Okay? Yes
Future Growth 3%
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction• Electrical System Integration
• Existing Conditions• Approach 1Approach 2
• Conclusions
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Recommendations
Approach 1 ( minus Chilled Beams)• Most Economical (1.2 years)• Highest Level of Occupant Safety (IEQ)
- Thanks to Room Sensors
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction• Electrical System Integration• Conclusions
Recommendations• Acknowledgements• Questions
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AcknowledgementsFamily
Friends
AE Department
Mueller Associates
AIG Architects
University of Delaware
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction• Electrical System Integration• Conclusions
• RecommendationsAcknowledgements• Questions
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Questions?
Interdisciplinary Science & Johnathan Peno
Engineering Building (ISEB) Mechanical Option
Newark, DE
Presentation Outline
• Introduction• Ventilation Load Reduction• Electrical System Integration• Conclusions
• Recommendations• AcknowledgementsQuestions