session: campus utility distribution system strategies
TRANSCRIPT
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Rhode Island Convention Center • Providence, Rhode Island
Distribution System Master Planning:How to Build a Successful Plan
Session: Campus Utility Distribution System Strategies
Kevin Fox, P.E., CEMJacobs
August 9, 2016
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Energy Exchange: Federal Sustainability for the Next Decade
COMPREHENSIVE MASTER PLANNING
• Why is a comprehensive utility master plan important?– Identify and coalesce around goals and drivers– Address critical infrastructure needs– Prepare for growth– Address the big picture– Develop actionable strategy
• The Goal:– Set a course for an efficient,
practical, cost effective and robust utility infrastructure system
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Energy Exchange: Federal Sustainability for the Next Decade
CONTEXT
• Application– Centralized/District Energy Systems
– Campus/Installations
• Thermal Systems – Chilled Water– Steam– Hot Water
• Utility Coordination– Electrical– Natural Gas
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Energy Exchange: Federal Sustainability for the Next Decade
MASTER PLANNING PROCESS
• Load Projections• Energy Considerations
– Chilled Water T– Steam vs. Hot Water
• Distribution Modeling– Period Simulation– Dynamic Analysis
• Design Considerations– Embrace Results
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Energy Exchange: Federal Sustainability for the Next Decade
LOAD PROJECTIONS
• Building Demand– Diversified vs. Peak Load
• Modeling and Calculations– Energy Models– Benchmarks
• Production Capacity• Redundancy
– Radial Feed– Looped Distribution
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Energy Exchange: Federal Sustainability for the Next Decade
ENERGY CONSIDERATIONS
• Chilled Water T– Control Strategies– Coils– Control valves
• Hot Water vs. Steam– Safety – Lower temperatures = less heat loss– Lower cost insulating materials– Operator knowledge & complexity– Condensate recovery– Building usage
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Energy Exchange: Federal Sustainability for the Next Decade
DISTRIBUTION MODELING
• Approaches– Static Simulation– Dynamic Modeling
• Constructing a Model– Nodes– Pipe Data– Fittings– Production Sources– Pumps
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Energy Exchange: Federal Sustainability for the Next Decade
DISTRIBUTION MODELING
• Evaluation Criteria– Flow Velocities– Pressure Limits
• Control Strategies– Variable‐Primary– Tertiary Pumps
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Energy Exchange: Federal Sustainability for the Next Decade
SYSTEMS AND MATERIALS
• Infrastructure Options– Direct Bury– Trench Box– Walkable Tunnel
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Energy Exchange: Federal Sustainability for the Next Decade
SYSTEMS AND MATERIALS
• Durable Structures– Concrete Specs– Admixtures– Reinforcing Steel– Waterproofing
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Energy Exchange: Federal Sustainability for the Next Decade
SYSTEMS AND MATERIALS
• Piping System Materials– Welded Steel
• ERW• Seamless
– Pre‐insulated• Standard• Vendor Specific Systems
– Composites• PVC• HDPE
– Applicable Codes
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Energy Exchange: Federal Sustainability for the Next Decade
RECAP – DISTRIBUTION PLANNING
• Load Projections• Modeling• Route Planning• Sizing• Design Criteria• Implementation Plan
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Energy Exchange: Federal Sustainability for the Next Decade
CAMPUS IMPLEMENTATION EXAMPLE
• University of Oklahoma– Load Calculations– Model Development– New Utility Plant Location– Evaluation of bottlenecks– Interconnections– Pipe Sizing– Routing– Design Criteria
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Energy Exchange: Federal Sustainability for the Next Decade
CAMPUS IMPLEMENTATION EXAMPLE
• University of Oklahoma– Design and Construction
• Parking Lots• Football Stadium• Campus Traffic• Pedestrians• Practice Field• Subsurface Conditions
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Energy Exchange: Federal Sustainability for the Next Decade
CONCLUSION: COMPREHENSIVE MASTER PLANNING
• A comprehensive utility master plan is needed to:– Identify and coalesce around goals and drivers– Address critical infrastructure needs– Prepare for growth– Address the big picture– Develop actionable strategy
• Next Step:– Implement the plan to build an
efficient, practical, cost effective utility infrastructure system
Contact: Kevin Fox, P.E., [email protected]