Kongsberg Maritime System / Package
K-IMS LNG Aging
K-IMS application suite for calculating LNG cargo aging and composition, boil-off and mixing, with online prediction from live vessel data and offline validator, mix, volume correction and prediction tools.
Description
K-IMS LNG Aging is an application suite on Kongsberg Maritime's Information Management System (K-IMS) for calculating and analysing LNG cargo composition. Operators and traders can assess the effects of options such as changing speed, with respect to LNG aging and boil-off rate, or rerouting vessels to other terminals while meeting composition requirements.
Modules
- Online – LNG Aging Prediction: uses live vessel data to show current and predicted LNG compositions for selected dates, with summary or individual tank views
- Offline – LNG Aging Validator: validates N2 and CH4 time constants and boil-off rate against expectations using loading/unloading data
- Offline – LNG Mix: calculates composition after mixing two cargo portions, e.g. remaining heel with a new loading
- Offline – LNG Volume Correction: calculates cargo changes as temperature changes
- Offline – LNG Aging Prediction: predicts composition aging to support decisions on reallocating cargo to other terminals
Standards
- ISO 6976 for gross calorific value calculations
- ISO 6578 for density calculations
Benefits
- Faster calculations when changing cargo destinations
- Prediction of cargo quality against receiving terminal requirements
- Validation of cargo aging against expected vessel performance
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