Outline

Interface

The SALVIA-OCT.-web., which is provided with interface shown below, is a web application for data input-output to and from SALVIA-OCT.-web. The output data can be used in OCTARVIA-index/prediction.

InputInterface

Output Interface

Correction to Ship Performance in Still Water (Ocean-going container ship)

(3) Assessment of Ship Performance in Still Water (including quality assessment)

SALVIA-OCT.-web. assesses the performance of the ship in given weather conditions set by the resistance criteria method1)2) using the corrected data and presents the relationship between the speed of the ship through water, main engine rotational speed and main engine power in diagrams. It also presents the results of quality assessment of the output data (pass grade).

Results of Assessment of Ship Performance in Still Water based on Onboard Monitoring Data (Ocean-going container ship)

The effectiveness of this assessment method was validated by confirming that there is only an approx. 2% difference between the results of the fuel consumption simulation by OCTARVIA-prediction based on the output data of ship performance in still water and the onboard monitoring data.

Validation of Assessment Method by Comparison between Results of Fuel Consumption Simulation and Onboard Monitoring Data 3)

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  (外航コンテナ船)

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  (外航油槽船)

(4) Assessment of Impact of Fouling and Aging

SALVIA-OCT.-web. can be used to assess the impact of fouling and aging based on long-term onboard monitoring data. The figure below shows an example of such assessment. “dPFAV” and “dPFAN” represent the rate of increase in main engine power due to fouling and aging at a constant ship speed and a constant rotational speed, respectively. The dotted lines in the figure are the approximation lines of dPFAV and dPFAN.

Results of Assessment of Ship Performance in Still Water based on Onboard Monitoring Data (Ocean-going container ship)

(5) Quality Assessment of Onboard Monitoring Data (Evaluation of Variations)

SALVIA-OCT.-web. assesses the effectiveness of formula approximation of onboard monitoring data with different filtering thresholds for the weather conditions based on data variations around an approximation curve. This assessment confirms that the formula approximation was performed appropriately and quantitatively defines the effectiveness of data filtering by weather conditions performed in (1).

To use this application

This application is available in full version and limited version(free).

To use this application, you must apply for membership registration which includes the signing of a written license agreement with NMRI.

Please go to the Registration page to register.

利用申請用サイト

https://unicus.jp/licensing/salvia/index.html

Fees:

• 330,000 JPY half-yearly
• 440,000 JPY annually

Fees for ShipDC-API:

• 7,260yen for one ship annually
• The fee is based on JST.
• The fee will be charged for one year until March 2.
• The users of SALVIA-OCT.-web free version can use the API with no fee.
• To use the ShipDC data, you need to apply for the IoS-OP service provided by ShipDC. Please contact ShipDC (contact@shipdatacenter.com) for details.

Fees for POLARIS Hindcast:

• The fee is based on the number of data points acquired in a month, and is charged according to the table below (rounded down to the nearest whole number).

• The fee is based on UTC.
• The fee is finalized at the end of each month, and is billed quarterly.
• The users of SALVIA-OCT.-web free version can acquire up to 4,500 data points.