Optimization of engine systems with OCC for a new-build LNG carrier. D3.1.1.
report
The EverLoNG project focuses on advancing carbon capture technology for LNG vessels. One of the
case studies in the project is a new-build LNG carrier. This report discusses the analysis performed
on historical operational data of a similar LNG carrier chartered by TotalEnergies, which is used as
input for the new-build vessel. The most optimal engine configuration of this new-build vessel in
combination with an on-board carbon capture is determined.
The optimal size for the capture system is determined at processing 8 ton CO2/h in the flue gas
entering the capture system. At this size, the capture system can avoid 75.7% of the on-board
emissions, at a fuel penalty of 10.7% compared to the base case. In this case, 73.7% of the heat
required for the capture system is recovered from the exhaust. Both the remaining heat demand of
the capture system and the electricity demand of the capture and liquefaction system contribute
equally to the resulting fuel penalty.
TotalEnergies has provided 575 days of historical operational data for one of their chartered LNG
carriers. Engine performance data is acquired for several engine types to allow comparison of these
engines when considering an on-board carbon capture system. A novel methodology is introduced in
this study which allows the calculation of the performance of a carbon capture system in relation to
the different engines considered, by calculating the performance at each datapoint in time (hourly
data was used in this study). Following this methodology, a digital cousin of the energy system of
vessels can be generated, which can aid in determining optimal configurations for an engine system
in combination with an on-board carbon capture process.
case studies in the project is a new-build LNG carrier. This report discusses the analysis performed
on historical operational data of a similar LNG carrier chartered by TotalEnergies, which is used as
input for the new-build vessel. The most optimal engine configuration of this new-build vessel in
combination with an on-board carbon capture is determined.
The optimal size for the capture system is determined at processing 8 ton CO2/h in the flue gas
entering the capture system. At this size, the capture system can avoid 75.7% of the on-board
emissions, at a fuel penalty of 10.7% compared to the base case. In this case, 73.7% of the heat
required for the capture system is recovered from the exhaust. Both the remaining heat demand of
the capture system and the electricity demand of the capture and liquefaction system contribute
equally to the resulting fuel penalty.
TotalEnergies has provided 575 days of historical operational data for one of their chartered LNG
carriers. Engine performance data is acquired for several engine types to allow comparison of these
engines when considering an on-board carbon capture system. A novel methodology is introduced in
this study which allows the calculation of the performance of a carbon capture system in relation to
the different engines considered, by calculating the performance at each datapoint in time (hourly
data was used in this study). Following this methodology, a digital cousin of the energy system of
vessels can be generated, which can aid in determining optimal configurations for an engine system
in combination with an on-board carbon capture process.
Topics
TNO Identifier
1019972
Publisher
TNO
Collation
37 p.