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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 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) • CDC – Central District • Cooling in 2010 • 8.3MW
A Solution • Solution: • Reduce load by moving air-conditioning load from day to night
Central District Cooling Site plan of underground chilled water pipe work (approximately 7.8kM)
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
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
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
Conclusion • JCU problem/solution • Central District Cooling • Operation and tweaking • Plant details • Did we succeed? • What were the drivers