tank soundings – Officer of the Watch

Monitoring of Bunker Fuel Consumption

July 2, 2013 by Officer of the Watch Leave a Comment

Monitoring of fuel consumption and GHG emissions from international shipping is currently under discussion at the EU level as well as at the IMO. There are several approaches to monitoring, each with different characteristics. Important differences exist with regards to the costs of the equipment, operational costs, the accuracy of the measurements, and the potential to monitor emissions of gases other than CO2. Moreover, some approaches offer more opportunities to improve the operational fuel-efficiency of ships and fit better to possible future policies than others.

The “Cappuccino Effect”

August 21, 2012 by Officer of the Watch 1 Comment

Recently the west of England P&I released a Loss Prevention Bulletin on the “Cappuccino Effect” due to a recent bunker dispute involving a vessel and a bunker supplier. The vessel, a bulk carrier, arrived in Singapore and began to bunker 900 tonnes of high sulphur fuel oil. The crew was alerted to the fact that something was wrong by the rattling of the float valves situated inside the fuel tank vent head bonnets. It was found that air was escaping from the vents at a greater rate than would normally be expected. In addition, the bunker supply hose lying on deck was seen to be jerking violently.