Tugboat design Tugboats are quite strong for their size. Early tugboats had steam engines; today diesel engines are used. Tugboat engines typically produce 750 to 3000 horsepower (500 to 2000 kW), but larger boats (used in deep waters) can have power ratings up to 25 000 hp (20 000 kW) and usually have an extreme […]
Tanker operations during laden voyage The daily operation of oil tankers involved many hazards. There are many check items that should be complied with to ensure a safe working atmosphere. The Chief Officer shall manage cargo oil and carry out related operations. Water And Cargo Oil Measurement As following the Charterer’s instructions, measure water contained […]
Measures for pump room inspections and gas detection equipments A pump room contains the largest concentration of cargo pipelines of any space within the ship and leakage of a volatile product from any part of this system could lead to the rapid generation of a flammable or toxic atmosphere. Pumprooms Ventilation Correct use and set […]
Fuel oil handling safety guideline for cargo ships The Chief Engineer shall endeavor to prevent troubles caused by abnormal qualities, excess or shortage in volume, difference in specifications, and the like of FO, paying great attention to the following items. Discussion on Bunkering volume (in metric ton) and type of Fuel (IFO 180, 280,380,Bunker C,DO) […]
Cargo ships bunkering procedure Fuel oil used as a fuel in connection with the propulsion and auxiliary machinery of the ship. Following guideline should be taken into consideration prior acceptance or rejection of fuel oil by a cargo ship : Difference in viscosity : (a) If the deviation falls within the range allowed by the […]
Safety precaution during oil handling, heating planning for oil tanker Expansion Allowance Before loading commences, consideration must be given to the temperature of the cargo being loaded and to the maximum temperature, which may be expected on the voyage. Where there is a possibility that the cargo temperature will rise during the voyage, sufficient ullage […]
Guidelines for toxic gases hazards for tanker operation Oil tankers operations at sea and while at port requires some basic safety procedure to be observed. Prior entering a space which contained or has a risk of the presence of any Toxic gases such as benzene, H2S, etc., the MSDS (Marine Safety Data Sheets) and other […]
Risk of gas freeing operation and precautions for oil tankers It is generally recognized that Tank cleaning and Gas freeing is the most hazardous period of tanker operations. This is true whether Washing for clean ballast tanks, Gas freeing for entry, or Gas freeing for Hot work. The additional risk from the Toxic effect of […]
Control Oil Pollution for tanker operation How to prevent damage to environment for tanker operation Oil tankers operations at sea and while at port requires some basic safety procedure to be observed. Equipment for Oil Spill Detection a). Fixed Gas Detecting System (Pump Room and Double Hull Spaces adjacent Cargo Tanks). b). Pump Room Bilge […]
Inert gas system for tanker Inert gas (IG) piping Fitted on all tankers over 20,000 dwt and on all tankers fitted with crude oil washing (COW) systems. IG piping is usually large diameter low-pressure mild steel, with smaller diameter branch lines. The internal surface of inert gas piping does not usually corrode. The external surface […]