conversion of diesel-powered tug boat to electric...
TRANSCRIPT
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Conversion of Diesel-Powered Tug Boat to Electric Propulsion
By Joseph Fleming – Chief Engineer, Elco Motor Yachts
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41’ Steel Tugboat - built and in service on the New York State Erie since 1927
• powered by a large diesel engine
• Heavy air and water polluter
• High fuel and maintenance costs
• NYS Energy Research and Development demonstration Project
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Specifications• 35,000 lbs – 15,875 kgm• 4-8 hour daily operation• 208 volt/50 amp, single
phase shore power• Barge generators
available when not docked – but not to be considered a primary source
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1980’s Diesel
Helm station controls to the left and above wheel
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Replacement Design
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Batteries• 36 12-volt, 220 ahr AGM type
batteries hooked in series/parallel (3 banks of 12 in series hooked in parallel)
• ABYC standards with disconnects and emergency master disconnect switch
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Battery Charger and AC Circuit Panel
• Single 5000 watt charger for overnight charging from 80% DOD
• Circuit protection in NEMA enclosure with Volt and Ammeter monitoring
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Installation
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Outcomes
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Performance