Optimum trim the way the hull runs (trim and draught) can imply considerable bunker variations. Onboard optimisation measurements have to be corrected for subjective human observations of the environmental conditions. The relevant data for making the corrections are not always available. together, this limits accuracy. Model tests under controlled conditions remove much of the ambiguity. We carried out many trim-draught investigations – covering the complete loading range of a hull. such a study is a cost-effective, low-risk way of saving from 1% to 6% on fuel costs (occasionally even more) which is normally paid off within a year in the case of a single ship and within a few months if there are sister ships.
The efﬁciency of any shipping vessel can be judged based on its adaptability to the changing environmental conditions and its inherent ability to ﬁne-tune its performance accordingly. Most shipping companies are constantly on the look-out for effective and proven methods of reducing the expensive fuel consumption. Trim Optimization is the most efﬁcient & guaranteed way of reducing fuel consumption by increasing propulsion energy efﬁciency.
Based on the loading conditions, the GreenShip software calculates the optimum trim value for varying speed ranges. This software helps Captain to identify the optimum trim for a particular draft and speed.
To estimate the optimum trim in “Trim Optimization” software, trim curve needs to be developed for the vessel's operational proﬁle (Draft, Speed and Trim) using CFD. Operational proﬁle is discussed with customer to identify the range of vessel speed, draft and trim, which helps to estimate the required trim points. Though commercial CFD tool is issued for calculation, trim curve generation tool is developed by GreenShip to send the data to cloud and calculate the power required from the available resistance.
Considering need of number of trim points, cloud technology is developed to carry out CFD calculations which help to run the calculation in parallel. This reduces the duration to provide the trim curve data.
Ref: "Trim Curve Generation Using CFD for Fuel Savings"by Elangovan M., Jagadeesh S., and Jukka M., at Indian National Conference on Applied Mechanics (INCAM), ITT, Dehli, 13-15 July 2015.
Trim curve generation tool developed by GreenSHIP using CFD provides useful and practical data for optimizing the floating position of a given vessel for different loading conditions and speeds.
The result obtained is the optimum trim for each draft and speed in relation to its impact on the floating position.
The tool also aids in the study of propulsion power for varying trims, speeds and displacements.
Based on CFD and mathematical calculations, the tool proves to be faster and cost effective for studying the ship’s hull and does away with the need for model testing.
A report in the form of a trim curve table is obtained which helps the ship operator operate the ship efficiently for a desired load.
As a first step, the tool essentially models the hull by creating panels on the hull surface which is then subjected to different turbulences to get the turbulence flow at both the near and far fields.
This is followed by trim curve generation, plotting and reporting.
GreenSHlP software helps in deciding the most favorable sea route based on weather conditions while simultaneously ensuring on-time arrival and conservation of fuel. The software is designed to increase profitability and efficiency by prudently mitigating risks and optimizing the route.
Speed optimization is important not only for fuel conservation, but also for ensuring that the ship reaches its destination on the desired date and time. From the berthing point of view and in terms of ship operations, time translates to money. It becomes imperative for a ship to berth at a place in the scheduled time and date as early or late arrival at the destination leads to cost escalations.
The efficiency of any shipping vessel can be judged based on its adaptability to changing environmental conditions and its inherent ability to fine-tune its performance accordingly. Most shipping companies are constantly on the look-out for effective and proven methods Of reducing the expensive fuel consumption. Trim Optimization is a sure shot way of reducing fuel consumption by increasing propulsion energy efficiency. Based on the loading conditions, the GreenSHlP software calculates the optimum trim value for varying speed ranges.
GreenSHlP understands the indispensability of transport analysis and the need for software tools that can quickly simplify rather than complex and computationally intensive process. Based on mathematical models, the company has designed an efficient tool specifically for this purpose. The tool provides computed details on speed, most conducive time for transport, etc based on past history of weather data and wave motion.
GreenSHlP provides for both pre-voyage and onsite analysis of the ship operations vis-a-vis the fuel consumption to determine the efficiency and also identifies where the consumption is higher and proactively suggests way of reducing it. The data is generated continuously which ensures constant monitoring and optimization.
GreenSHlP has designed comprehensive onboard decision support software to monitor the ship's key performance indicators, emissions and optimize fuel consumption based on real-time data. Operational data is collected from onboard equipments and analyzed to optimize the engine's performance, and calculate the ideal draft and trim conditions for fuel efficiency.
GreenSHlP software is holistic and takes care Of each and every aspect Of Ship Design, Ship Operations and Transport. Great emphasis has been placed in designing the software to be environmentally friendly and in compliance with the stipulations of international governing bodies. The software is designed as modules and categorized based on the functionality. Customers have an option of selecting the desired module or can opt for the complete package.
Deploy a new technology into maritime industry applications and improve the performance of the ships.
Shipping transport is the economic and eco friendly for GREENER tomorrow.
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