1. BANGLADESH UNIVERSITY OF ENGINEERING & TECHNOLOGY NAME 338 SHIP DESIGN PROJECT & PRESENTATION-3 DATE-18 ,April,2011

2. DESIGN OF A WATER TAXI FOR 100 PASSENGERS in SADARGHAT-ASHULIA ROUTE Project Supervisor KhabirulHaqueChowdhury Professor Department of Naval Architecture & Marine Engineering,BUET Presented By- Hasib-Ul-Haque (0712014) Ahmad ShibliSaleheen (0712018)

3. OBJECTIVES To use the circular water ways around Dhaka city To ease the water way communication with comfortable service To reduce the pressure on land transport. To safe people from horrible traffic jam.

4. PRINCIPAL PARTICULARS LENGTH: OVERALL : 24.90 meter Load water line : 24.122 meter L.B.P : 22.95 meter BREADTH: MAXIMUM : 6.5 meter MOULDED : 6.3 meter DEPTH(MLD) : 2.0 meter DRAFT(MLD) : 1.1 meter

5. PRESENTATION TOPICS 1.Rudder design. 2.Engine selection and foundation. 3.GA and Lines plan update 4.Weight calculation update 5.Hydrostatic calculation update 6. Trim and Stability update

6. Rudder Design-Calculation from GL

7. CAD Drawing

8. Steering Arrangement

10. (1+K1) = Form factor describing the viscous resistance of the hull form in relation to RF

11. RAPP = Appendage resistance

12. RW = Wave making and wave breaking resistance

13. RB = Additional pressure resistance due to bulbous bow near the water surface

14. RTR = Additional pressure resistance of immersed transom stern

15. RA = Model ship correlation resistance

16. Resistance & Power Calculation For our ship we get, RF= 4.6430 KN (1+K1) = 1.22 RAPP = 0.1417 KN RW= 9.0478 KN RB = 0 RTR = 0 RA = 1.7609 KN So, RT = 16.6149 KN Effective power,PE = RT × V = 16.6149 × 12 ×0.5149 = 102.65 KW = 137.68 HP

17. Resistance & Power Calculation Shaft Power,Ps= PE/[ ηR η0ηs(1-t)/(1-w)] = 188.19 HP Delivered Power,PD= ηs× Ps= 0.99 × 188.19 = 186.31 HP Break horse power = PS/ ηG = 194.01 HP Where, ηG= gear efficiency = 97%

18. Engine Selection Yanmar type 4JH4-HTE

19. Engine Selection Steyr Motor Engines-M0114K33

20. Why we select Yanmar type 4JH4-HTE?? The Yanmar type 4JH4-HTE Engine is designed for high performance. The innovative fuel injection technology enables an excellent torque and speed range. Service Life-this engine is manufactured using high alloy materials to provide enduring longevity for all running components. Comfort-The patented 2-stage UNIT Injector fuel injection technology provides for a worldwide approped and smooth operation noise Exhaust Emissions-The trend-setting UNIT INJECTOR system enables us already today to conform with the valid emission regulations. Transmission-this engine allow the installation with different driving system in our boat.

21. Power Yanmar type 4JH4-HTE Steyr Motor Engines-M0114K33

22. Fuel Consumption Yanmar type 4JH4-HTE Steyr Motor Engines-M0114K33

23. Torque Yanmar type 4JH4-HTE Steyr Motor Engines-M0114K33

24. Engine Dimension Aft view Right View

25. Engine Specification

26. Engine Foundation

27. CAD Drawing

28. CAD Drawing

29. CAD Drawings

30. Equipments

31. VARIANCE IN DATA

32. GA Update

33. MODIFICATION OF GENERAL ARRANGEMENT 1.Canteen facility has been cancelled 2.Number of Bulkhead is reduced 4.Seating arrangement has been renovated and updated 5.Change in Cabin type,size and position

34. Comparison between GA plans GA-Updated GA-Previous

35. Lines Plan Update

36. Deadweight calculation

37. DEADWEIGHT CALCULATION No of person on board: No of passenger = 100 No of crew = 6 Total = 106 Weight allowance per person: Weight per person = 75 kg Luggage per person = 5 kg Total = 80 kg Total weight for persons = 80× 106 = 8.48 tons

38. Capacity calculation

39. Summery from Capacity Calculation

40. Summary of deadweight

41. Lightweight calculation

42. SHELL EXPANSION

43. Longitudinal

44. CALCULATION OF WEIGHT OF PLATES

45. weight of other items

46. WEIGHT OF OTHER ITEMS

47. MISCELLANEOUS : 2 TONNE

48. So,the total lightweight of the vessel is = (9.47+47.93) tons = 57.4 tons Therefore, the displacement of the vessel= Lightweight+Deadweight = 57.4 + 17.48 = 74.88 tons Which was previously 123.48 tons

49. HYDROSTATIC UPDATE

51. Hydrostatic Parameters

52. Form coefficient

53. Longitudinal centre of buoyancy Updated Previous

54. Longitudinal metacentre Updated Previous

55. Transverse metacentre Updated Previous

56. Displacement Updated Previous

57. Water plane coefficient Updated Previous

58. Prismatic coefficient Updated Previous

59. Vertical centre of buoyancy Updated Previous

60. Block coefficient Updated Previous

61. Midship section coefficient Updated Previous

62. Longitudinal centre of flotation Previous Updated

63. MCT 1m Previous

64. MCT 1m Updated

65. STABILITY CALCULATION

66. GZ SAMPLE CALCULATION AT 30°INCLINATION

67. GZ SAMPLE CALCULATION AT 30° INCLINATION V.C.G from keel= 1.31 m KB = 0.69 m

68. GZ CURVE

70. LCG of total ship = 0.93 m aft of amidship

72. C.F. = 1.08 m aft of amidship

73. Draft = 1.1 m[The value of LCB,MCT1m,C.F. are taken from the Hydrostatic Calculations earlier in the design procedure]

74. TRIM UPDATE Now, Amount of Trim={(0.93-0.72)*74.68}/141.16 = 0.1111 m by stern So, Change in Trim aft= 0.05 m Change in Trim Forward= 0.061 m Therefore, resulting Draft Forward= 1.1-0.061 = 1.039 m Draft Aft= 1.1+0.05 = 1.15 m