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31 Oct 2010
Two years after Teekay entered into a contract with Blue Water to provide cargo heating management services onboard its vessels in, its fleet has registered fuel savings in excess of 25% on an average from over 225 voyages.
The cargo heating management services were deployed onboard its vessels
as part of Teekay’s efforts towards fuel savings and operational
optimization. The service was conceptualized by the India-based marine
consultancy firm, Blue Water Trade Winds Pvt. Ltd. The innovative
service was introduced onboard the tanker vessels under a systematic
plan and consistently observed and modified to maximize savings during
cargo heating operations.
The initial research on developing the system began a few years ago
when a team of seasoned mariners led by Mr. Roy Choudhury, Teekay
Vessel Manager, and research analysts teamed up to study the potential
savings in cargo heating operations. Statistical records of heating
voyages for over a decade were accumulated from various sources and
analyzed against variables.
The system is based on specially designed software that derives
inferences from complex thermodynamic calculations and statistical data
analysis to generate a virtual ship and a specific virtual voyage. A
dedicated heating project team then devises a cargo heating plan for a
voyage depicting the estimated cargo temperature drop, optimum heating
schedules, boiler loads and fuel consumption. Although there is immense
research put into developing each cargo heating plan, analysts at Blue
Water believe that the major share of the success so far lies with the
vessel staff who ensured a proper deployment of the plan onboard and
its monitoring.
Mr. Victor Armstrong, Manager, Vessel Optimization at Teekay Marine
Services said that Teekay has a responsibility to consistently
contribute towards global sustainable development – financially,
socially and economically. He said with an average of over 20,000 MT of
fuel oil consumed in cargo heating operations in any year, the cargo
heating management service was developed as a tool to optimize the
various processes involved by comprehensive estimation, planning and
monitoring. The program was launched onboard four Teekay vessels as a
pilot project in the last quarter of 2008 before rolling out to the
entire conventional tanker fleet.
Anurag Datta, Technical Manager of Blue Water, said that with an
exhaustive database already in place his team was now working towards
developing a new concept of OCT (Optimum Cargo Temperature) for
different cargo grades that would help charterers and ship operators
decide the optimum safe cargo temperature over the traditional
charter-party cargo temperatures that are mostly being followed today.
Mr. Datta further said that time and again it has been observed that
the charter party unnecessarily requires the cargo to be maintained at
higher temperatures leading to excessive fuel oil consumption. The OCT
would be the minimum safe cargo temperature at which the cargo can be
maintained during transit, ensuring that the quality of the cargo
parcel is strictly maintained. Blue Water proposes to work with oil
majors and research institutes to further develop and validate the
exhaustive database of OCT for different cargo grades being transported
worldwide. The development of this new concept is targeted to reduce
overall fuel oil consumption in cargo heating operations and also to
reduce harmful emissions from long running hours of the vessel’s boiler
during these operations.
Source: Teekay Corporation