Hold Cleanliness: Cleaning The Hold
Dec22

Hold Cleanliness: Cleaning The Hold

Before loading a bulk cargo, the master has usually to declare that the ship is ready to load as per the charterparty requirements and charterer’s and owner’s instructions. Copies of the charterparty should be placed onboard so that the master is able to see exactly what are the ship’s obligations. The master can have this declaration accepted only when the holds have been inspected and accepted. For this to happen, the master needs...

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Gas Tanker: Specimen of Calculation
Nov07

Gas Tanker: Specimen of Calculation

The following example demonstrates the typical procedure outlined using the standard temperature of 15°C as applied to cargo in a ship’s tank. Measurement data — Tank No.3 port Product — Propane Gauge reading of liquid depth  ………………………………….. : 10.020 metres Ship’s trim...

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Gas Tanker Calculation Procedures
Nov06

Gas Tanker Calculation Procedures

Independent cargo surveyors are often employed by cargo buyers or sellers and the survey companies provide personnel to check cargo operations and cargo quantities both on board ship and within terminals. Such activities can include cargo measuring and cargo sampling. During cargo operations, it is important to maintain a log of events. Ship’s officers and shore personnel should ensure that their time records are in agreement...

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Petroleum Calculation Series: Gas Tanker Principal Products
Nov01

Petroleum Calculation Series: Gas Tanker Principal Products

The hydrocarbon gases methane, ethane, propane and butane may be regarded principally as fuels, the LPGs are also important as feedstock in the production of the chemical gases. Liquefied Natural Gas (LNG) Natural gas is transported either by pipeline as a gas or by sea in its liquefied form as LNG. Natural gas comes from underground deposits. Its composition varies according to where it is found but methane is by far the predominant...

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