Bunker survey calculation software how to#

Take a deep breath and read on.Liquid Height. And as the density also changes with the temperature, we would need the density of the cargo at the cargo temperature to convert the observed volume to weight. We need the density of the cargo to convert the volume of cargo to the weight. We need to convert the volumes to the weight of the cargo in each tank. As the volume changes with the temperature, this cannot be the measure of how much cargo we have loaded or discharged.

Let us say we got the volumes from the ullage tables and the volumes for each tank are as per below. We also measure the temperature of the cargo preferably at three levels and take the mean of these three temperatures to get the temperature of the cargo.

Ok, now let us get back to basics of cargo calculations on tankers.

Bunker survey calculation software how to#

How to convert weight in Vacuum to weight in Air? The first page of the ASTM table 56 provides the factor for converting weight in vacuum to weight in air and vice versa. Ok, so now here is the first thing that we can learn. In the vacuum, there is no buoyancy and hence the weight is more than the same weight when measured in air. This is because, like with water, air and any other medium in which the weight is present would offer some kind of buoyancy which reduces the weight. Even though on ships it is more common to measure the cargo weights in the air, sometimes you may find that the charterers would give the requirements for measuring weight in Vacuum.Д¬oming back to the topic, can you guess for the same amount of cargo which weight would be more? Weight in air or weight in Vacuum? Well, the weight is Vacuum is always more than the weight in Air. Even when we hear some weight of cargo, let us say Tons of cargo, there are two things that we need to be aware of.

There are so many tables to use and so many terms that float. It is sometimes difficult to get a hang of these calculations. We make sure that there are least constants on the ship, the ballast is pumped out to the last drop and many other things like these.ДЄll this to make sure that we have the capacity to load maximum cargo and ship owner has a chance to earn maximum from it. вЂ‹вЂ‹вЂ‹вЂ‹At Bureau Veritas we have built on our expertise across the maritime industry, safety and security of ship operations and ship design, industrial control systems, smart ships, and networks and telecommunications to provide best in class cyber security Services.We do so many things to make sure that ship owners get the maximum out of their investments on buying and running a ship. As a consequence, a вЂbusiness as usualвЂ™ approach is no longer affordable and cyber security should be considered integral to safety management in shipping and offshore operations. Cyber-attacks against a number of players have revealed that the security solutions currently in place arenвЂ™t necessarily a match for sophisticated hackers. At the same time, weвЂ™ve also seen how digitalization brings new challenges. Real-time, connected equipment and intelligent data is emerging as shippingвЂ™s most valuable assets.