Results 41 to 50 of about 1,083,101 (288)

Fault States Diagnosis of Marine Diesel Engine Valve Based on a Modified VGG16 Transfer Learning Method

Mathematical Problems in Engineering, 2023
The marine diesel engine is an important power machine for ships. Traditional machine learning methods for diesel engine fault diagnosis usually require a large amount of labeled training data, and the diagnosis performance may decline when encounters ...
Yijie Cai, Zhe Xu, Quan Wen, Jinni Shi, Fei Zhong, Xiaojun Yang, Jiang Yang, Hongdi Zhou   +7 more
semanticscholar   +1 more source

Analysis of Exhaust Pollutants from Four-Stroke Marine Diesel Engines Based on Bench Tests

Journal of Marine Science and Engineering, 2023
Implementation of new emissions regulations calls for a reassessment of the emissions levels of newly built ships sailing in Chinese regions. In this paper, marine diesel engines are subjected to emissions bench tests using high-precision testing ...
Zhongmin Ma, Taili Du, S. Duan, Hongfei Qu, Kai Wang, Huilei Xing, Y. Zou, Peiting Sun   +7 more
semanticscholar   +1 more source

Evaluating air emission inventories and indicators from cruise vessels at ports [PDF]

, 2017
This paper provides an estimation of air emissions (CO2, NOX, SOX and PM) released by cruise vessels at the port level. The methodology is based on the Bfull bottom-up^ approach and starts by evaluating the fuel consumed by each vessel on the basis of
Martín Alcalde, Enrique, Melo Rodríguez, Germán de, Murcia González, Juan Carlos, Saurí Marchán, Sergi   +3 more
core   +2 more sources

Research on thermoeconomic fault diagnosis for marine low speed two stroke diesel engine

Mathematical Biosciences and Engineering, 2022
To satisfy the requirements of low fuel consumption, low emission, and high efficiency of the shipping industry, marine diesel engines are developing in the direction of automation and energy-saving, which increases the possibility and complexity of ...
Nan Xu, Guolei Zhang, Longbin Yang , Zhenyu Shen, Min Xu, Lei Chang   +5 more
doaj   +1 more source

Phase-transition materials derived photonic metamaterials for passively dynamic solar thermal and coldness harvesting

Heliyon
The rising need for energy to actively heat and cool human-made structures is contributing to the growing energy crisis and intensifying global warming.
Hengliang Wu, Dan Shang, Huan Zhang, Lifeng Zhi, Shaolong Sun, Shiming Cui, Chaoqun Yan   +6 more
doaj   +1 more source

Liquefied Natural Gas (LNG) as a Transitional Choice Replacing Marine Conventional Fuels (Heavy Fuel Oil/Marine Diesel Oil), towards the Era of Decarbonisation

Sustainability, 2022
As environmental regulations on sulphur emissions become more severe, the maritime sector is looking for alternative solutions. This study evaluates greenhouse gas (GHG) reduction alternatives and their combined ability to decarbonise international ...
Styliani Livaniou, G. Papadopoulos
semanticscholar   +1 more source

Study on the Cumulative Effects of Using a High-Efficiency Turbocharger and Biodiesel B20 Fuelling on Performance and Emissions of a Large Marine Diesel Engine

Journal of Marine Science and Engineering, 2022
The marine sector represents probably the most powerful segment of international transport. Most ships use diesel engines for propulsion. Pollutant emission regulations with their continuous decline of acceptable limits put huge pressure on engine ...
Nicolae Adrian Visan, Razvan Carlanescu, Dan Catalin Niculescu, Radu Chiriac   +3 more
doaj   +1 more source

A comparative study on mean value modelling of two-stroke marine diesel engine [PDF]

, 2009
In the present paper, two mean value modelling approaches of varying complexity, capable of simulating two-stroke marine Diesel engines, are presented. Both approaches were implemented in the computational environment of MATLAB Simulink®. Simulation runs
Theotokatos, Gerasimos
core  

Modeling and Real-Time Scheduling of DC Platform Supply Vessel for Fuel Efficient Operation

, 2017
DC marine architecture integrated with variable speed diesel generators (DGs) has garnered the attention of the researchers primarily because of its ability to deliver fuel efficient operation. This paper aims in modeling and to autonomously perform real-
Balijepalli, VSK Murthy, Satpathi, Kuntal, Ukil, Abhisek   +2 more
core   +1 more source

Research on Multi-Parameter Fault Early Warning for Marine Diesel Engine Based on PCA-CNN-BiLSTM

Journal of Marine Science and Engineering
The safe operation of marine diesel engines (MDEs) is an important safeguard for ships and engine crews at sea. In this paper, a combined neural network prediction model (PCA-CNN-BiLSTM) is proposed for the problem of multi-parameter prediction and fault
Yulong Su, Huibing Gan, Zhenguo Ji
semanticscholar   +1 more source