Skip to main content

Bow flare

Bow flare plays an important role for any kind of ships...not only for bulk carrier. But, yes...it has got some special 'significance' when it is 'related' with bulk carrier! Well, if you see the front view of a bulk carrier you can easily deviate it from container ship or ro ro ship. Bulk carrier has got similar U shape front but container has got V shape front. 
Now...it causes the more 'angle of entrance' of a bulk carrier. This more angle of entrance plays an important role in Naval architecture perspective. If it is more then drag force & some where wave making resistance has got effected. Also it effects in cost economy & construction. If more angle of entrance is there in Bow part of a ship then ship's front part become likely to heavy weight...more material involves. Speed reduces by virtue of it. 
It also causes (more angle of entrance) more block coefficient of a ship. It effects prismatic coefficient too while designing the ship & affect the 'new midship concept of bulk carrier'. 
Naturally bulk carrier has got more block coefficient compare to container & other dry fleet vessel..

Comments

  1. does it mean bulk carrier doesnt has bow flare ? cause it is outward curvature of side shell of stem .

    ReplyDelete

Post a Comment

If you have any doubts.Please let me know

Popular posts from this blog

Manganese bronze is not typically used as a propeller material .Why

1. High cost: Manganese bronze is a costly alloy, making it less economical for large propellers. 2. Low strength-to-weight ratio: Compared to other propeller materials like nickel-aluminum bronze or stainless steel, manganese bronze has a lower strength-to-weight ratio. 3. Susceptible to corrosion: Manganese bronze can corrode in seawater, especially when exposed to high velocities and turbulence. 4. Poor cavitation resistance: Manganese bronze is more prone to cavitation damage than other materials. 5. Difficult to cast and machine: Manganese bronze is challenging to cast and machine, making it less desirable for complex propeller geometries. 6. Limited weldability: Manganese bronze has poor weldability, making repairs and modifications difficult. Nickel-aluminum bronze or stainless steel are commonly used for propellers due to their: - High strength and durability - Excellent corrosion resistance - Good cavitation resistance - Ease of casting and machining - Weldability

MAN B&W MC Engine VIT Pump

The pump is basically a jerk type with a plunger moving in a matched barrel, using two helical grooves machined in the plunger to control the end of injection by uncovering spill ports and causing the discharge pressure to drop rapidly, thus causing the needle valve in the injector to close. Oil is supplied to the barrel via the spill ports and a suction valve. The suction valve, situated at the top of the barrel opens when the pressure in the  barrel falls below the supply pump pressure; i.e. during downward stroke of plunger, while spill ports are covered by plunger. Replaceable erosion plugs  are fitted in the pump housing opposite the spill ports. The high pressure oil, spilling back, as the edge of the helix uncovers the s...

Main engine interlocks

Interlocks are provided so that the engine can be started or reversed only when certain conditions have been fulfilled. When there is a remote control of engines, it is essential to have interlocks. This reduces the possibility of engine damage and any hazards to the operating personnel. Turning gear Interlock . This device prevents the engine from being started if the Turning gear is engaged. Running Direction Interlock . This prevents the fuel from being supplied if the running direction of the engine does not match the Telegraph. Starting Air Distributor in end position . This prevents starting from taking place if the shifting of the Distributor has not been completed. Main Lube. oil pressure, Piston cooling pressure, Jacket water pressure, and important parameters must be above the required minimum. Auxiliary Blower Interlock . The Auxiliary Blower is provided in case of Constant pressure turbo charging. Air Spring pressure Interlock . In case of the present generation...