Power
Estimation Fish Boat
At the time of planning, an engineer
must be able to perform in accordance with the existing peracangan based
regulations. Regulations are usually issued by the Class, such as BKI (Bureau
Classification Indonesia), BV (Bureau Veritas), GL (Germanischer Lloyd), etc.,
so that an engineer must choose one of the many classes available.
Estimated to be done first is the driving force of the ship, because basically playing engine or ship propulsion, can spend about 30 percent of the total budget to be released soon, so this could be said to be crucial, and must be considered carefully.
Cost to play is usually directly proportional to the engine power being issued, so we just need to find the required driving force approximation (BHP).
The first to do is to make corrections to the size of the main vessel owner given by regulation to be used. The results of this correction is that natinya will be used in determining the initial estimate ship propulsion.
Correction Main Size (In accordance with BKI)
• The value of L / Bantara 5.0 - 6.0
• The value of L / Hantara 8.5 - 10
• The value of T / B between 0:45 to 0:48
• The value of T / Hantara 0.74 - 0.84
After the correction of errors in the can, then we can find the value of Cb (block coefficient), Ac (Coefficient Admiral), and displacement (Δ) is needed later. The formula is:
CB = 1179 - ((0333 * Vs) / L ^ 0.5)
Ac = 0.95 L + 197
Δ = LWL * B * T * Cb * 1:03
L = Length of ship (m)
LWL = Length Waterline Ship = 1045 * L
B = Width Outlying Ship (m)
T = Draft or Draught Ship (m)
H = Height Ship (m)
Cb = block coefficient
Ac = coefficient Admiral
Δ = Ship Displacement (tons)
Early Power Estimation Mover
To calculate ship propulsion design used methods Admiralitet:
SHP = {(Displ ^ 2/3) x Vs ^ 3} / Ac
BHP = SHP / (0.98 x 0.85)
SHP = Shaft Horse Power (Hp)
BHP = Break Horse Power (Hp)
The calculation to determine the initial estimate Ship Power Activator can be made in a visual basic program. Examples of cases and the calculation is as follows:
Shipyard will make fishing boats ordered by the owner with the following specifications:
• LPP = 9.14 m
• B = 2.92 m
• T = 1.37 m
• H = 1.73 m
• Vs = 8 Knot
These steps are used:
1. Make corrections to the size of the ship's main
2. Calculates the value of Cb, Ac, and displacement
3. After that, the calculation of the SHP, sehinggan value of BHP can be found.
Estimated to be done first is the driving force of the ship, because basically playing engine or ship propulsion, can spend about 30 percent of the total budget to be released soon, so this could be said to be crucial, and must be considered carefully.
Cost to play is usually directly proportional to the engine power being issued, so we just need to find the required driving force approximation (BHP).
The first to do is to make corrections to the size of the main vessel owner given by regulation to be used. The results of this correction is that natinya will be used in determining the initial estimate ship propulsion.
Correction Main Size (In accordance with BKI)
• The value of L / Bantara 5.0 - 6.0
• The value of L / Hantara 8.5 - 10
• The value of T / B between 0:45 to 0:48
• The value of T / Hantara 0.74 - 0.84
After the correction of errors in the can, then we can find the value of Cb (block coefficient), Ac (Coefficient Admiral), and displacement (Δ) is needed later. The formula is:
CB = 1179 - ((0333 * Vs) / L ^ 0.5)
Ac = 0.95 L + 197
Δ = LWL * B * T * Cb * 1:03
L = Length of ship (m)
LWL = Length Waterline Ship = 1045 * L
B = Width Outlying Ship (m)
T = Draft or Draught Ship (m)
H = Height Ship (m)
Cb = block coefficient
Ac = coefficient Admiral
Δ = Ship Displacement (tons)
Early Power Estimation Mover
To calculate ship propulsion design used methods Admiralitet:
SHP = {(Displ ^ 2/3) x Vs ^ 3} / Ac
BHP = SHP / (0.98 x 0.85)
SHP = Shaft Horse Power (Hp)
BHP = Break Horse Power (Hp)
The calculation to determine the initial estimate Ship Power Activator can be made in a visual basic program. Examples of cases and the calculation is as follows:
Shipyard will make fishing boats ordered by the owner with the following specifications:
• LPP = 9.14 m
• B = 2.92 m
• T = 1.37 m
• H = 1.73 m
• Vs = 8 Knot
These steps are used:
1. Make corrections to the size of the ship's main
2. Calculates the value of Cb, Ac, and displacement
3. After that, the calculation of the SHP, sehinggan value of BHP can be found.
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