Paper Title: Effects of Marine Condition on the Speed and Fuel Consumption of a Fully – Loaded VLCC
H Hakimzadeh, Department of Marine Sciences, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
M A Badri, Isfahan University of Technology, Research Institute for Subsea Sciences & Technology, Isfahan, Iran
M Torabi Azad, Department of Physical Oceanography, Tehran North Branch, Islamic Azad University, Tehran, Iran
F Azarsina, Department of Marine Structures, Faculty of Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
M Ezam, Department of Marine Sciences, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
Minimizing fuel consumption is a priority for ship-owners seeking to reduce their vessel costs due to sea conditions. One of the most reliable methods used to estimate fuel consumption is to identify field investigations for future voyages. The VLCC Salina was used based on daily field data collected over a proper period and year of 2014 was identified as a period of optimal performance after its periodic dry dock repair. According to verified results for Beaufort scales of 2, 3 and 4, the vessel exhibited an average speed loss of 2.2% due to wind and wave effects for a Froude number of 0.15 while its greatest speed loss was observed at angles of 30‒60° relative to its longitudinal axis. The results were finally used to develop a methodology for estimating fuel consumption of Salina and 3 other sister-ships, during future voyages, in the fleet of the National Iranian tanker company.
Transactions RINA, Vol 160, Part A4, International Journal Maritime Engineering, Oct - Dec 2018
DOI No: 10.3940/rina.ijme.2018.a4.489
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