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Published byValentine Ford Modified over 8 years ago
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Water & Energy Efficiency In Recreation Facilities
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Presentation Overview Solar PV, Solar passive, Geothermal Variable speed drives (VSD) Lighting and switching Voltage reduction Leaks Fixtures and fittings Irrigation Pool back wash
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Collect BAU Data How much energy does it currently use? What claims to the supplier make? Do they seem feasible? Check usage after installation
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Solar PV Good payback Check interval data Structural engineering reports Panels ain’t panels Renting roof space (ownership and title issues)
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Passive Solar Vacuum tubes. Heat pump hot water systems
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Geothermal
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Variable Speed Drives Pool pumps Air handling units
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Lighting
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Reduce power costs Reduce maintenance and replacement costs Reduce OHS risks Check supplier carries spares and warranty coverage
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Light Switching Swipe card SMS PIN Charge by the pole (Single and multiple lamp poles, varying lamp wattages, pole and lamp maintenance)
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Voltage Reduction New transformer (Dynamic or static) TX over ride Site survey Resistive loads Inductive loads
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Small Appliances Star rating Purchasing policy Whole of life cost (Purchase, operation, maintenance)
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Water Leaks Fixtures and fittings Irrigation Pool back wash
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“Patron Dependent” Vs “Patron Independent” Water Use Dependent – ablutions etc. Independent – Evaporation, irrigation, (to some extent) backwash
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Implications For Water Efficiency Patron dependent water use = lower capital costs and maintenance Showers Taps Toilets & urinals Leaks within these
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Implications For Water Efficiency Patron independent water use = capital expenditure, BUT is often a “one off” cost Pool covers and shade structures New filters Irrigation upgrades may need complete systems replacement Sub meters
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City/Country Comparison (Potable only)
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Leaks
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Covered By Standards
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Not All Labels Are Standards
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Irrigation Some systems using wrong sprinklers (even though they appear to be working)
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Irrigation Systems with even head spacing
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Irrigation System Design May be suited to pro forma system design
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Sub-meters Water Management Leak Detection Quantification (i.e. irrigation systems, backwash events, ablution water use per patron)
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Sub-meters Meter: Main irrigation solenoid Single point large loads (Make up water, ablutions where possible)
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Sub-meters Pulse capable Pulse rates of =>1 pulse per 10 Litres Can be fitted with loggers Read in conjunction with main meter
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Data Loggers
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Sub-meters & Data Loggers MUST be read MUST be analysed MUST be acted on Make it someone’s job
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Thank You
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