000007581 001__ 7581
000007581 005__ 20241024114655.0
000007581 02470 $$2doi$$a10.24868/issn.2515-818X.2018.011
000007581 035__ $$a2248555
000007581 037__ $$aGENERAL
000007581 245__ $$aCharge air configurations for propulsion diesel engines aboard fast naval combatants
000007581 269__ $$a2018-10-02
000007581 336__ $$aConference Proceedings
000007581 520__ $$aThe Royal Netherlands Navy (RNLN) wants to reduce the fossil fuel dependency of its fleet significantly, to decrease logistic efforts and environmental impact (Defensie, 2015). One of the methods to reduce fossil fuel dependency of ships is to reduce their energy requirement. The operational profile of fast naval combatants for the RNLN requires that the ships operate on the diesel engines for 90 percent of the time, often in part load where the turbocharger cannot supply the engine with the right amount of charge air. This results in a limited operating envelope for the diesel engine, and a decreased efficiency in part load. However, in part load, advanced<br>
charge air configurations can potentially resolve this. In this study a Mean Value First Principle (MVFP) diesel engine was used to investigate the effects of advanced charge air configurations on the efficiency and acceleration performance of diesel engines in hybrid configurations aboard fast naval combatants. It was concluded that the application of advanced charge air configurations can significantly improve the engine efficiency in part load. For example, in a diesel hybrid propulsion configuration with power take-off this can lead to an efficiency increase of almost 10 percent at 20 percent load in comparison with a single charged engine. Furthermore, hybrid turbocharging enables extending the operating envelope at low engine speed due to a better air excess ratio. With these concepts therefore, both improved efficiency and improved acceleration performance can be achieved.
000007581 542__ $$fCC-BY-NC-ND-4.0
000007581 6531_ $$aTurbocharger
000007581 6531_ $$ahybrid
000007581 6531_ $$aOperating envelope
000007581 6531_ $$aAcceleration performance
000007581 7001_ $$aRusman, J Q$$uDelft University of Technology, The Netherlands
000007581 773__ $$tConference Proceedings of INEC
000007581 773__ $$jINEC 2018
000007581 789__ $$whttps://zenodo.org/record/2248555$$2URL$$eIsIdenticalTo
000007581 8564_ $$9a32ca8b2-d0ae-468b-b320-cdbe7cbd0a1e$$s3119649$$uhttps://library.imarest.org/record/7581/files/INEC%202018%20Paper%20011%20Rusman%20SDG%20FINAL.pdf