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Showing posts from February, 2015

MLC 2006 TITLE 2 ( Condition of employment)

Title 2 of MLC 2006 deals with condition of employment Reg 2.1 Seafarer's employment agreement The terms and conditions for employment of a seafarer shall be clear written in a legally enforceable agreement. It should be agreed by seafarer and he should has the opportunity to review and seek advice on the terms and conditions. The agreement should be signed both by seafarer and the shipowner or representative of shipowner. Both should have one set of original signed agreement copy. Seafarer employment agreement should contain his full name, DOB, and birth place, shipowner name and address, capacity of seafarer to which he is employed, amount of his wages, amount of paid annual leave and termination of agreement. Reg 2.2 Wages All seafarer shall be paid for their work regularly and in full in accordance with their employment agreement. Member states have to make sure that payments to be made to seafarer at no greater than monthly basis. Seafarer has to be given with full acco

MLC 2006 Title 1( Minimum requirement for seafarer working on a ship)

Title 1 of MLC 2006 deals with minimum requirements for seafarers working on a ship Regulation 1.1 Under  this minimum age for a seafarer is defined as 16 years to work on board a ship. Also night work of seafarers under age of 18 years is prohibited. Regulation 1.2 This regulation deals with medical fitness of a seafarer. Seafarer shall not work on a ship unless they are certified as medically fit to perform their duties. The standard of medical examination is without any prejudice to STCW 1978 as amended. A medical certificate issued in accordance with the requirement of STCW shall be accepted by competent authority. Certificate should be issued by duly qualified medical practitioner. Regulation 1.3 This regulation deals with Training and qualification of seafarer. Seafarer shall not work on a ship unless they are trained or certified as competent or otherwise qualified to perform their duties. Training and certification should be in accordance with instruments adopted by IM

Inspection and setting of safety valve of an exhaust gas boiler

We all know the procedure to be followed for a boiler survey. Also we know the safety parts associated with any boiler survey. So, lets see which all parts should receive close attention while inspecting a safety valve: Check condition of internal parts of valve for sign of corrosion,galling and wear. Check for pitting, cracking, resiliency and condition of spring Check spindle for straightness and adjusting ring threads for freedom of movement. Check the discharge and drain piping, it should be well clear. Check dampers to ensure that linkages are secured and well greased. The faxes of seats and valve heads should be checked for damage with maker's recommendation. Now safety valve of an exhaust boiler can be set only out at sea when main engine is running. So, this can be set by only a class 1 holder person serving as chief engineer on board the vessel. Procedure for setting the valve is as follows:- Ensure that overhauled valve can lift D/4 when spring tension is r

Modern methods of turbocharging

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PULSE CONVERTER SYSTEM:- Concerning those pulse charging system due to long interval of air inlet and partial loss of air inlet (multi inlet turbine) which lead a low efficiency of turbine, in order to improve the performance of engine, pulse converting charging system is presented. Pulse converting system tries to keep the advantage of pulse system which is its high available energy and the unsteady flow at exhaust, meanwhile steady and effective flow condition can be obtained for turbine.     A real simple pulse converting system used for four cylinder engine is shown in the figure below It uses conventional pulse manifold, using a carefully designed connecting piece to connect a manifold which has two branches to a single turbine. Through four cylinders connecting to an inlet of turbine, it totally avoids the interval of air inlet among exhaust pipes. Comparing to constant pressure system though inlet of turbine are different it avoids the situation of pulse system operating