Zero emission commuter ferry Kul24 4110 Ship Project

Zero emission commuter ferry Kul-24. 4110, Ship Project A Tomas Their (224051), Ran Xiao (467643)

Main content Ø Original concept Ø Resistance calculations Ø General arrangement Ø Structural calculations Ø Weight estimation Ø Stability Ø Cost estimation Ø Conclusions Kul-24. 4110, Ship Project A 2 16. 12. 2014

Original concept Ø “Zero emission commuter ferry to be used in Helsinki” Ø City centre - Kruunuvuorenranta Kul-24. 4110, Ship Project A 3 16. 12. 2014

Original concept Ø Original specifications Ø 150 passengers (+ 20 bicycles, wheel chair capacity etc. ) Ø Wooden catamaran Ø Hydrogen fuel cells Ø Service speed 15 knots Ø 24 m long, 9 m wide, 1. 15 m draught Kul-24. 4110, Ship Project A 4 16. 12. 2014

Resistance calculations Ø Poorly done during concept phase Ø Catamaran calculations Ø Problematic Ø Reliability of results Ø Cavitation Ø RPM limitation: 390 r/min Ø Final results: Ø Lower service speed to 13 knots Ø 2 x 320 k. W engines Kul-24. 4110, Ship Project A 5 16. 12. 2014

General arrangement Ø Small ship Ø Emphasis on more details Ø Passenger area done Ø Machinery placement Ø Other gear Kul-24. 4110, Ship Project A 6 16. 12. 2014

Kul-24. 4110, Ship Project A 7 16. 12. 2014

Structural calculations Ø Wooden structure Ø Own regulations Ø Small ship Ø Relatively easy calculations Ø Results: Ø The current design has all the strength it needs Kul-24. 4110, Ship Project A 8 16. 12. 2014

Weight estimation Ø Unconventional design Ø Direct approach simple Ø Weight of wood and other materials Ø Weight of main components Ø Passengers and cargo Ø Final weight: 57, 2 tons Ø Comparing the results to other ships is useless Ø The draught is similar to that of other ships of the same size Kul-24. 4110, Ship Project A 9 16. 12. 2014

Stability Ø Vertical center of gravity Ø High and heavy roof vs. machinery in the hulls Ø Catamaran design helps with stability Ø Final results: The recovering moment is much more than the needed one. Fully satisfied the requirement of DNV’s regulation for the ferry. Kul-24. 4110, Ship Project A 10 16. 12. 2014

Cost estimations Ø As with weight, a direct approach is best Ø Price of materials, main components, other Ø Final cost: 1, 88 million € Ø Comparisons with ships in the same class Ø Simple ships: ~ 1, 5 million € Ø Complicated ships: ~ 3, 5 million € Ø Ar Vag Tredan gives interesting comparison Kul-24. 4110, Ship Project A 11 16. 12. 2014

Conclusions Ø Changes from concept: Ø Higher weight Ø Slower speed Ø Higher power Ø Cost same Ø Main design points same Ø The ship seems feasible Ø More work is needed to make final decision Ø (Proper CAD model would have been nice) Kul-24. 4110, Ship Project A 12 16. 12. 2014

Thank you! Questions? Kul-24. 4110, Ship Project A 16. 12. 2014