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District Cooling

District Cooling. A Solution. Outline. Power Problems Solution Central District Cooling Operation Plant Details Outcome Project Drivers. Power Problems. Townsville campus reaching power limit. BAU – Business As Usual in 2010 12.9MW Maximum Demand (Network Agreement)

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District Cooling

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  1. District Cooling A Solution

  2. Outline • Power Problems • Solution • Central District Cooling • Operation • Plant Details • Outcome • Project Drivers

  3. Power Problems • Townsville campus reaching power limit • BAU – Business As • Usual in 2010 • 12.9MW • Maximum Demand • (Network Agreement) • CDC – Central District • Cooling in 2010 • 8.3MW

  4. Daily Power Profile

  5. A Solution • Solution: • Reduce load by moving air-conditioning load from day to night

  6. Central District Cooling Site plan of underground chilled water pipe work (approximately 7.8kM)

  7. Operation

  8. Thermal Energy Storage

  9. Plant Details • 4x 11 kV 4.2 MW chillers • Total capacity 16.8 MW(r), 3.2 MW(e) • 120 MWh Storage • High COP ~ 5.5 total system

  10. Outcome

  11. Optimisation

  12. Building Integration

  13. Chilled Water Profile

  14. Project Drivers - Adverse • 2006 – 70,000sqm | 2010 – 94,000sqm | 2015 – 120,000sqm • Demand 2006 – 7.4MW | 2010 – 9.9MW | 2015 – 12MW • Ergon Substation Upgrade$25M • Chiller Plant Replacement – 5 years, $9M • Business as usual total cost $34M

  15. Project Drivers - Progressive • Solution reduced demand to 5.8MW in 2013 (saving 5.3MW) • Saves 30% in operating cost, $1.3M pa • Reduced energy costs $2.7M pa • Total project cost $23M (BAU $34M) • The system is the largest TES site in the southern hemisphere

  16. Conclusion • JCU problem/solution • Central District Cooling • Operation and tweaking • Plant details • Did we succeed? • What were the drivers

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