Now showing items 1-12 of 12

• #### A Comprehensive Survey of Prognostics and Health Management based on Deep Learning for Autonomous Ships ﻿

(Journal article; Peer reviewed, 2019)
The maritime industry widely expects to have autonomous and semiautonomous ships (autoships) in the near future. In order to operate and maintain complex and integrated systems in a safe, efficient, and cost-beneficial ...
• #### A Temperature-dependent Model of Ratio of Specific Heats Applying in Diesel Engine ﻿

(Master thesis, 2017)
Rate of heat release is a standard tool when engineers tune and develop new engines. The ratio of specific heats $\gamma$ is considered an essential parameter for achieving accurate rate of heat release calculation as it ...
• #### Automatic Fault Detection for Marine Diesel Engine Degradation in Autonomous Ferry Crossing Operation ﻿

(IEEE International Conference on Mechatronics and Automation;, Chapter, 2019)
The maritime industry generally anticipates having semi-autonomous ferries in commercial use on the west coast of Norway by the end of this decade. In order to schedule maintenance operations of critical components in a ...
• #### Control of the combustion process and emission formation in marine gas engines ﻿

(Journal article; Peer reviewed, 2018)
A smooth transition to the use of gas engines instead of conventional engines in marine shipping is a logical pathway for compliance with tightening environmental regulations. Currently, five major gas engine concepts are ...
• #### Experimental Investigation of Injection and Combustion Processes in Marine Gas Engines Using Constant Volume Rig ﻿

(Doctoral theses at NTNU;2019:96, Doctoral thesis, 2019)
In circumstances of the strong demand for a reduction of harmful emissions from ships, one of the main pathways of the development of marine power plants is improvement of the existing and development of new gas engine ...
• #### Experimental Study of High-Pressure Gas Injection Using Optical Methods ﻿

(Master thesis, 2018)
This thesis first presents the role of LNG as a potential means to reduce marine emissions and get international shipping into compliance with new regulations set by regulatory authorities. An overview of different gas ...
• #### Experimental Study of Ignition Delay, Combustion, and NO Emission Characteristics of Hydrogenated Vegetable Oil ﻿

(Journal article; Peer reviewed, 2019)
In this article, a comparative study of hydrogenated vegetable oil (HVO) and diesel was performed in two constant volume combustion rigs and an optical accessible compression-ignited chamber (OACIC). Ignition, combustion, ...
• #### Methane slip from gas fuelled ships: a comprehensive summary based on measurement data ﻿

(Journal article; Peer reviewed, 2018)
Strict NO x emission regulations set for marine vessels by Tier III standard make ship owners/operators finding new efficient methods fulfilling these requirements. Utilization of LNG as main fuel at the moment is one of ...
• #### Particulate matter emission characteristics from diesel engines operating on conventional and alternative marine fuels ﻿

(Doktoravhandlinger ved NTNU, 1503-8181; 2012:341, Doctoral thesis, 2012)
The awareness of adverse health effects associated with diesel aerosol emissions has generated a great public and academic interest in studying various aerosol-producing sources. While automotive industry has achieved ...
• #### Remaining useful life predictions for turbofan engine degradation using semi-supervised deep architecture ﻿

(Journal article; Peer reviewed, 2018)
In recent years, research has proposed several deep learning (DL) approaches to providing reliable remaining useful life (RUL) predictions in Prognostics and Health Management (PHM) applications. Although supervised DL ...
• #### Restoration and Testing of the Hydra Research‐Engine ﻿

(Master thesis, 2017)
This thesis has aimed to be a driving factor in the restoration process of the Hydra research engine. During the semester, several changes and improvements has been done to restore the engine to its former glory. These ...
• #### Validation of Data-Driven Labeling Approaches Using a Novel Deep Network Structure for Remaining Useful Life Predictions ﻿

(Journal article; Peer reviewed, 2019)
Today, most research studies that aim to predict the remaining useful life (RUL) of industrial components based on deep learning techniques are using piecewise linear (PwL) run-to-failure targets to model the degradation ...