PennState Health – Milton S. Hershey Medical Center ... · PennState Health – Milton S. Hershey...
Transcript of PennState Health – Milton S. Hershey Medical Center ... · PennState Health – Milton S. Hershey...
© Optimum EnergyCopyright © 2016 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential
PennState Health – Milton S. Hershey Medical CenterCentral Plant Optimization
Kevin Kanoff, CEM – Campus Energy Engineer, Milton S. Hershey Medical CenterJesse Ohm, PE, CEM, LEED AP – Senior Operations Engineer, Optimum Energy
October 05, 2017
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VFDs added to 375 HP of primary chilled water pumps VFDs added to 1000 HP of secondary chilled water
pumps VFDs added to 750 HP of condenser water pumps Power Monitoring for all chillers and auxiliary
equipment Distribution Flow Meter and Temperature Sensors Deploy Optimum Energy Optimization Control
Algorithms and Monitoring Platform
Optimization Foundation - Scope of Work
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The Challenge – Multi Plant Campus with Thermal Storage
3
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Plant Layout – Satellite Plant 1
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Plant Layout – Satellite Plant 2
5
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Plant Layout – CUP (Commissioned mid-June 2016)
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Optimize Through – Demand Based Relational Controls
Cooling Tower Fan Speed
Condenser Pump Speed
Chiller Vane & Speed
Chilled Water Pump Speed
Air Handler Fan Speed
Total System Cooling Output
Total System Energy Input
Total System Schematic
VFD’s
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Optimize Through – “Sweet Spot” Multi-Plant Loading
8
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TES Must Remain available for Demand Response• Strategy Included hybrid mode of Optimization and
Manual Demand Response Action.
SAT plants elevation created negative return pressure conditions at high SAT plant flows.• Resolved through adjusting TES transition sequence
changes and limiting SAT plant range
Changing the Mindset • Shift from constant primary flow to variable primary flow• Variable chilled water temperatures• Variable distributions pressures• Variable condenser water flow through chillers• Wide range of tower water temperatures
Other Operational Requirements
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Efficiency Results – Prior to Optimization (2014)
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Efficiency – Simulation during Analysis Phase
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Projected Savings – Electrical (kWh)
Total annual projected savings of 3,406,502 kWh for 201612
Chiller Plant Efficiency Scale – Current and Projected
Average annual chilled water plant efficiency in kW/ton. Input includes: chillers, tower fans, condenser pumps, and chilled water pumping.
.828Current
.691Projected
16.5% Efficiency Improvement
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Efficiency – Prior to Optimization (2014)
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Efficiency – Post Optimization (2016) - 0.709 kW/Ton
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Total annual savings of 4,047,952 kWh (2016)
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Efficiency – Post Optimization (2017) - 0.675 kW/Ton
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Total year to date savings of 3,623,706 kWh (through 09/2017)
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Site Efficiency – Post Optimization (2017)
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Utility Efficiency Analysis – Pre/Post (2016)
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Utility verified savings of 4,156,991 kWh for 2016
• $415,699 Utility Incentive
Thank you. Engineered. Deployed. Proven.
Copyright © 2016 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential. Information contained in this presentation and otherwise disclosed orally by Optimum Energy, LLC contains confidential information which is subject to the obligations of the confidentiality Agreement between Optimum Energy, LLC and you (“the NDA”). You agree to treat the information as donfidential in accordance with the NDA.