Double Acting Ice Class Tanker
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Transcript of Double Acting Ice Class Tanker
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VIMAL KUAMRDOST CUSAT
KOCHI-22
DOUBLE ACTING ICE CLASS TANKER
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HULL GEOMETRY2
Designed with the help of BSRA series. Aft has been modified to meet with the ice
breaking requirements ,accommodate twin azipod propeller.
Hydrostatic and bonjean has been calculated manually and checked by span2k.
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Lines plan3
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Resistance & Propulsion4
Résistance has been calculated by following method
BSRA MethodHolltrop – Menon Guldhammer – Harvald Max of the resistance value given by above method has been
selected. Ice resistance has been calculated by formula given in
FSICR.25% allowance has been added to meet with severe climate .Wake fraction and thrust deduction factor has been selected
from FSICR.
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Engine selected 3x9TM620(wartsilla) Rpm 428 , Rated output 12.75 MWGenerators3XHSG 1600 S14, 815A/11KV/50HZ,Rated output
12.43MW(ABB)Transformers2XSTROD/BTRD. 11KV/121KVAzipod2xV125,17.9MW,Rpm 110,(ABB) Propeller has been designed for selected pod using TJ
chart. Stern speed has been checked with formula given by
Icebreaker performance prediction” by Arno Keinomen, Robin P Brown, Colin R Revill and Ian M Bayly,
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General arrangement7
Complement -44(24 crew+20off) A Deck-crew +laundry+co2 room B Deck-P O+ Galley + catering off C Deck –junior officer + Hospital+ games room D Deck- Senior officers Nav bridge Helipad has been provided in midship region life boat has been provided extreme aft. Separate Azipod room has been provided,
entrance has been provided from main deck.
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Emergency generator has been provided on main deck
Muster station has been provide extreme aft.Emergency fire pump has been provided in fwd
region.2 Nos hose handling crane of capacity 5 tonnes has
been provided at frame no 168.Provision crane has been provided at frame no 34
(port side)Spaces and arrangement has been provided
according to ILO & Crew and accommodation rules 1960
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Capacity calculation9
Calculated by first principle using AUTO-CAD
Three sections are considered for smaller tank and 5 for larger tanks/spaces.
Capacity, LCG(from AP), VCG (from base line) TCG (from C L) is calculated.
24 segregated ballast tank has been provided.
10 cargo hold has been provided.
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Cross curves of stability 10
Trimmed Cross curve and trimmed hydrostatic has been calculated from span 2k.
For intermediate trim cross curves and hydrostatic has been interpolated.
Windage area deck immersion and down flooding angle has been calculated using AUTOCAD.
KG max and GZ min has been calculated for every trim condition using IMO recommendations.
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Trim & stability12
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GZ CURVE13