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University of Iowa Oakdale Renewable Energy Plant

University of Iowa Oakdale Renewable Energy Plant. Ferman Milster , P.E. Associate Director – Utilities & Energy Managment. Oakdale Campus and Main Campus considered one major source for air permitting. Oakdale. Iowa City. Oakdale Campus Growth. State Hygienic Lab - 2009

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University of Iowa Oakdale Renewable Energy Plant

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  1. University of IowaOakdale Renewable Energy Plant FermanMilster, P.E. Associate Director – Utilities & Energy Managment

  2. Oakdale Campus and Main Campus considered one major source for air permitting Oakdale Iowa City

  3. Oakdale Campus Growth • State Hygienic Lab - 2009 • UI/UIHC Data Center – 2011 (?) • Engineering Research Building & Wave Basin • Oakdale Environmental Management Facility • Library High Density Archive Facility

  4. Oakdale Renewable Energy PlantPhased Implementation • 2009, Back-up Power Generation (Natural Gas Fueled) • 2010, Biogas Generation (Landfill &/or Digester Gas Fueled) Generation Capacity Demand by Year • 2010, Combined Heat & Power System • Future, Syngas Generation (Bio-gasification Fueled)

  5. Oakdale Renewable Energy Plant (OREP) • Goal – University Research Campus is powered from 100% renewable energy. • New district energy system • Central backup power from reciprocating engines capable of natural gas or low-Btu gas • New hot water, chilled water, and electric district energy system. • Tri-generation – electric, hot water, chilled water

  6. OREP Renewable Energy Sources • Landfill Gas • City of Iowa City Landfill – currently flaring > 1MW of gas • 5 to 7 mile pipeline • Siloxane removal prior to engine. • Post combustion NOx control • Anaerobic Digester • Local industrial organic byproducts versus agricultural • Low solids content (e.g. sludge, offal, filter press, etc.) • Gasifier • Wood chips, construction & demolition waste • High solids content material (e.g. seed corn, oat hulls, etc.)

  7. Combined Heat & Power • Initial build based on two GE Jenbacher 420 recip engines @ 1.4 MW each. • Plant has capacity for two additional engines. • 1,200 ton electric chilled water plant , with provisions for expansion. • Thermal chiller concept (adsorber or absorber) in development. • PSD air permitting, Oakdale campus and main campus considered one major source. • FERC Qualified Facility

  8. Oakdale Renewable Energy Plant Improve Reliability of the Distribution Systems • Underground Electrical Utilities • Direct tie to 69 KV Transmission • Loop feed to vital buildings • Increase to 13.8 KV Distribution

  9. Oakdale Electric System

  10. Oakdale Renewable Energy Plant Improve Efficiency of the Distribution Systems • Install Hot Water Heating for New Facility • Evaluate Upgrade to Hot Water Heating for Existing Facilities • Evaluate Adsorption Chillers to Optimize Chilled water System Efficiency

  11. Oakdale Renewable Energy Plant Install Generation Capacity • Back-up Power for Hygienic Lab and Data Center • Primary “Green” Generation Capacity • Reduce or Eliminate Natural Gas Dependency • Reduce Purchased Electric Costs • Provide Combined Heat and Power Capability to Improve Efficiency • Market “Green” Power to the Electrical Grid

  12. Engine Building OREP Switch Yard Chiller Plant Engine/Generator Building Switch Yard Chiller Building Switchyard Bio-Gasification Production and Research Facility Sub Station Potential Bio-Gasification Production and Research Biogas Pipeline

  13. Adsorption Chiller Technology Advantages • Utilizes low-grade heat recovered from engine-generators that would otherwise be wasted • Exceptional reliability: one moving part, based on silica gel water adsorption properties • Extremely low O & M cost • Barriers • Not widely deployed in US • High capital cost per ton • Low delta T per unit, although series configuration able to produce high delta T

  14. Questions?

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