LIFETIME - Low in fuel and emissions two-stroke intelligent marine engine
Overview
Background & policy context:
Normal
0
false
false
false
MicrosoftInternetExplorer4
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Normální tabulka";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";
mso-ansi-language:#0400;
mso-fareast-language:#0400;
mso-bidi-language:#0400;}
The LIFETIME project had considered the problem of large marine engine performance degradation and emissions increase over time. This problem is compounded by the fact that a conventional marine engine has optimum matching fixed for a certain operating regime. The target of the project was to develop control systems able to optimise engine performance using the emissions level as an optimisation constraint.
Objectives:
Normal
0
false
false
false
MicrosoftInternetExplorer4
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Normální tabulka";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";
mso-ansi-language:#0400;
mso-fareast-language:#0400;
mso-bidi-language:#0400;}
The objectives of the LIFETIME project were:
- To establish a set of correlations between performance, emissions and engine operating parameters, applicable to a wide variety of direct drive marine engines.
- To develop a control system including the correlations above, able to optimise engine performance based on standard measurable operating and external parameters, with emissions level as an optimisation constraint.
Methodology:
The methodology in the LIFETIME project was:
- To perform a limited series of full scale shipboard tests and testbed experiments of powerplant performance and emissions for large two-stroke marine engines, to compound the partner’s cumulated experience and information repository.
- To conduct a series of detailed simulations of ship powerplant operation under various conditions using comprehensive advanced mathematical models, calibrated using the results of (I), so as to arrive at Objective 1, namely to a set of correlations linking performance, emissions and the engine parameters.
- To use performance and emissions prediction simulation models, in combination with engine control systems design procedures and electronic system test bed trials, so as to arrive at Objective 2, namely to an engine control system including the optimisation correlations of Objective 1.
- To test three (3) prototype LIFETIME systems:
- Onboard a containership with a conventional direct drive slow speed engine.
- Onboard a new built containership with a state-of-the-art ultra large bore engine.
- On an "intelligent" engine.
In this context, during the first project year the first (I) part of the methodology was achieved, while the second (II) one was completed during the second project year. After the Mid-Term period, the third (III) and fourth (IV) part of the methodology commenced and were completed during the third project year. After the completion of 39 months, the LIFETIME Project has accomplished its specified goals and objectives.
Share this page