What is fuel consumption in ships?

Fuel consumption by a containership is mostly a function of ship size and cruising speed, which follows an exponential function above 14 knots. For instance, while a containership of around 8,000 TEU would consume about 225 tons of bunker fuel per day at 24 knots. Normal (20-25 knots; 37.0 – 46.3 km/hr).

How do you calculate specific fuel consumption?

Simple Method

Formula To Estimate Maximum Engine Fuel Consumption. Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight.
300-hp Diesel Engine Example. GPH = (0.4 x 300)/ 7.2 = 105/7.2 = 16.6 GPH.
300-hp Gasoline Engine Example. GPH = (0.50 x 300)/ 6.1 = 150/6.1 = 24.5 GPH.
Other Related Resources:

How much fuel does a ship use per km?

In 24 hours it can travel 1,000 km, consuming 280,000 liters of fuel. This works out at less than 1.5 liters per container per 100 km. This is far more economical and environmentally friendly than the road transport equivalent.

How is WCF and VCF calculated?

– T 54B (VCF) > Density @ 15*C 0.9903 = 0.9870 (see the above picture you need to interpolate if any different numbers on both columns). (Quick formula with reducing factor for WCF is Density @ 15*C – 0.0011 = 0.9903 – 0.0011 = 0.9892).

What is unit of specific fuel consumption?

Gathering all the terms together, TSFC is the mass of fuel burned by an engine in one hour divided by the thrust that the engine produces. The units of this efficiency factor are mass per time divided by force (in English units, pounds mass per hour per pound; in metric units, kilograms per hour per Newton).

How is fuel consumption calculated on a ship?

Measuring and Reporting Fuel Oil Consumption The formula (Corrected Density = Density at 150C X [1 – {(fuel temp (0C) – 150C) X 0.00065}]) should be used to obtain the corrected density at the recorded fuel temperature.

How is fuel consumption of a ship calculated?

What is specific fuel consumption of diesel?

For spark ignition (gasoline engine) the BSFC is around 250 g/kWh and for compression ignition (diesel) around 200 g/kWh. …

What type of fuel do large ships use?

HFO or heavy fuel oil is the most widely used type of fuels for commercial vessels. The fuel oil releases energy to rotate the ship propeller or the alternator by burning fuel inside the combustion chamber of the engine or to generate steam inside the boiler.

What is VCF and WCF?

In this case, we need to get the volume correction factor (VCF) to convert the volume at the observed temperature to the standard volume which is volume at 15 Deg C or Volume at 60 F respectively. We then need to apply the weight correction factor (WCF) to convert the standard volume to weight.

What is ASTM 54?

ASTM Table 54 stands for evaluating VCF (Volume Correction Factor). On vertical side Tank Temperatures are given and horiontally Density @ 15 Deg C are given. Corresponding value for Tank Temperature and Density @ 15 Deg C is VCF.

How much fuel does an average container ship use in a day?

How much fuel does a ship use at 21 knots?

At 21 knots, this consumption drops to about 150 tons per day, a 33% decline. While shipping lines would prefer consuming the least amount of fuel by adopting lower speeds, this advantage must be mitigated with longer shipping times as well as assigning more ships on a pendulum service to maintain the same port call frequency.

How to calculate specific fuel oil consumption ( sfoc )?

Specific fuel oil consumption= Mass of fuel consumed per hour/break power in that particular hour Detailed Specific Fuel Oil Consumption calculation for diesel engine SFOC Calculation SFOC = (Co x D x 10^6)/ (h x Pe)

How does ship fuel consumption affect the environment?

Vessel fuel consumption has emerged as one of the key contributors to environmental deterioration. For instance, shipping industry has co ntributed 4% of world carbon dioxide (CO2) emissions in 2007 leading to increasing greenhouse gases in the atmosphere [2].