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School of Aerospace, Mechanical and Manufacturing Engineering Climate Change Seminar: Australian Industry Group, 15 Nov 2007 RMIT-NORTHLink Greenhouse Challenge Support Program Dr John Andrews
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Deep cuts (at least 60% compared to 1990) in greenhouse gas emissions by 2050 are now seen as essential to avoid catastrophic climate change globally nationally by each company/organisation individually
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A Commonwealth Government cooperative program with industry to encourage greenhouse gas abatement
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The Australian Greenhouse Office has provided funding over the past four years for RMIT and the northern region’s business network, NORTHLink, to help firms in Melbourne’s north reduce their greenhouse gas emissions
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RMIT-NORTHLink Greenhouse Challenge Support program Opportunity for fourth-year Bachelor of Mechanical Engineering students, and Master of Engineering (Sustainable Energy) students, to conduct research projects with companies in Melbourne’s north on cutting energy use and greenhouse gas emissions
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Companies involved in 2007 Caterpillar City of Darebin Foster’s Brewing Group Honda Orica Riotinto South Pacific Tyres Yarra Trams Edlyn Foods Hotel Sofitel Moreland Energy Research Foundation RMIT Property Services
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Companies involved in 2006: P&O Ports RMIT Property Services The Age Print Centre Wentworth Furniture Yarra Trams Armstrong World Industries Bostik GWA Intl/Caroma City of Hume Greer Industries Hilton Melbourne Airport
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Companies involved in 2004 and 2005 2004: Air International, Armstrong World Industries, Autoliv, ED Oates, Greer Industries, Kangan Batman TAFE, Northern Hospital, Noteprinting Australia, Original Juice Co., Sutton Tools, Venture Industries, Yarra Valley Water 2005: Autoliv, City of Whittlesea, Marsden and McGain, RMIT (Property Services), Schiavello Commercial Interiors, Sealed Air Cryovac, Yarra Trams, Yarra Valley Water
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2006 Program was a huge success! The participating firms will: save up to $3 million/year cut their emissions of carbon dioxide by more 14 000 tonnes/year if they implement the recommendations made by the 11 B Mech Eng and 6 M Eng Sustainable Energy students involved in the program.
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The Northern Hospital Epping, Victoria Student: Tom Doherty and Low Eng Wah Project Aim: To reduce energy used for water and space heating Solar water heating Economisers for boilers
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The Northern Hospital: Outcomes 1 Flow control valves could cut hot water consumptions by 35%, and greenhouse emissions by 70 Tonnes CO 2 -e/year Solar water heating plus demand management would save an additional 58 tonnes/year Total emission reduction ~1% of hospital’s total Total investment: $210 000 Payback period: Flow control valves - 2 years; solar water heating – just over 10 years
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The Northern Hospital: Outcomes 2 Installation of an economizer on the main boiler supplying hot water for both space and domestic water heating would reduce total emissions by up to 60 Tonnes/year Capital cost $25 000 Payback period ~5 years
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Note Printing Australia Ltd (Cragieburn, Victoria) A global producer of currency and security products supplying Australia with polymer currency and passports. Alex Kim project: –Reduce emissions by cutting spoilage rate –Rationalise boilers
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Note Printing Australia Ltd: Outcomes Reduce spoilage rate from 15% to 5% Cut greenhouse gas emissions by ~ 70 Tonnes CO2-e /year, plus additional reductions due to lower usage of inks and polymer substrate Capital cost $1.3 m, annual savings ~$3 m Payback: less than 6 months
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Sealed Air - Cryovac - International World leader in global manufacturing of food packaging plastics. Operate in 51 countries over 100 manufacturing plants, approximately 17,600 employees. Inventors of Bubble Wrap ® Students: Stuart Sisley and Brett Gillespie
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Barrier Bag Manufacture Blowing /Racking Process 18 blowing / racking machines Staples used for joining
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Sealed Air Cryovac: Outcomes New heat sealing method reduces annual greenhouse gas emissions by 1900 tonnes (~2% of plant total) Capital cost: $90 000 Annual savings from reduced energy consumption and waste - $1.04 million Simple payback period - 1 month
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Student: Tasman Higgins Reducing diesel fuel consumption and greenhouse gas emissions of straddle carriers P&O Ports: West Swanson Terminal
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P&O Ports: Outcomes Limiting the over-lifting of containers reduces greenhouse gas emissions by approximately 150 tonnes annually Installing limit switches to each machine: $7,500 Annual fuel saving $80,000 Payback period: just over one month
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ORICA LAVERTON PLANT Produces chlorine through electrolysis –High electricity consumption –Emissions well over 100 000 tonnes/y –produces hydrogen gas as a by-product Student: Andrew O’Dea Using vented hydrogen for electricity prodcution and heat
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Greenhouse gas reduction options Utilise wasted hydrogen to offset electricity and gas consumption by: Utilise wasted hydrogen to offset electricity and gas consumption by: –producing electricity through: a fuel cell, or a gas turbine generator –reducing natural gas usage by fuelling the boiler with hydrogen
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PEM hydrogen fuel cell Electrochemical device (no burning) Latest technology No CO 2 emissions Produces electricity and hot water
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Hydrogen-fuelled gas turbine generator Turbo shaft engine driven AC generator 2000 kg/h steam generation Electricity generation No CO 2 emissions
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Potential savings Annual CO 2 reduction Payback period Fuel cell ~20 000 tonnes ~ 5 years Gas turbine ~12 000 tonnes ~ 3 years
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Solar Lighting at Tram Stops for Yarra Trams: Student: Andrew Devene
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Yarra Trams: Outcomes Environment Environment Potential Greenhouse Gas Emission savings: 328 kg CO 2 -e/yr/light 335 tonnes CO 2 -e/yr (60% of Network) Financial Financial Estimated Annual energy bill savings ($0.08/kWh): $60/year/light $60,373/year (60% of network) Social Social Increased community awareness of Sustainable Energy Options Increased security & safety Yarra Trams
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To participate in the RMIT- NORTHLink Greenhouse Challenge Support program next year Must be a Greenhouse Challenge Plus member Contacts: Dr John Andrews, SAMME RMIT University Ph: 03 9925 6085 andrews.john@rmit.edu.au andrews.john@rmit.edu.au John Wyett, Australian Greenhouse Office: 02 6274 1752; www.greenhouse.gov.au www.greenhouse.gov.au Mick Butera, NORTHLink, 03 9479 3337; m.butera@latrobe.edu.au
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