double acting ice class tanker

VIMAL KUAMRDOST CUSAT

KOCHI-22

DOUBLE ACTING ICE CLASS TANKER

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.

Lines plan3

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.

5

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,

6

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.

8

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

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.

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.

11

Trim & stability12

GZ CURVE13