Selection of Swirl Ratio in Diesel Engines Based on Droplet Trajectory Analysis

2017 ◽  
Author(s):  
Yanzhe Sun ◽  
Kai Sun ◽  
Zhen Lu ◽  
Tianyou Wang ◽  
Mengqiu Jia
Keyword(s):  
Diesel Engines ◽  
Trajectory Analysis ◽  
Swirl Ratio ◽  
Droplet Trajectory ◽  
Selection Of

Switching Converters Development Systems for Electrostart Diesel Engine Start

2015 ◽  
Vol 792 ◽  
pp. 529-535
Author(s):  
Stanislav V. Makarov ◽  
Alexander Vladimirovish Myatez ◽  
Vitali D. Suslyakov
Keyword(s):  
Diesel Engine ◽  
Circuit Design ◽  
Diesel Engines ◽  
Switching Converters ◽  
Power Circuit ◽  
Advantages And Disadvantages ◽  
Pulse Converter ◽  
Engine Start ◽  
Selection Of

The article presents the research aimed at improving the efficiency of the diesel engines running. The advantages and disadvantages of the existing systems of the starter starting systems of diesel locomotives are considered. Brainstorming ideas on the issue of the calculation and selection of the alternative circuitry power circuit pulse converter starting system of diesel engines are described in the paper. An example of calculating the regulating characteristics of the pulse converter and the efficiency of the proposed circuit design is reported.

scholarly journals Optimal Selection of Control Inputs for Diesel Engines

2008 ◽  
Vol 41 (2) ◽  
pp. 10704-10709
Author(s):  
Daniel Alberer ◽  
Markus Hirsch ◽  
Luigi del Re
Keyword(s):  
Diesel Engines ◽  
Optimal Selection ◽  
Selection Of

Paper 5: Application of Diesel Engines in the Royal Navy

1969 ◽  
Vol 184 (16) ◽  
pp. 32-43
Author(s):  
W. H. Sampson
Keyword(s):  
Automatic Control ◽  
Diesel Engines ◽  
Royal Navy ◽  
Lubricating Oils ◽  
Marine Propulsion ◽  
Improve Reliability ◽  
Selection Of

This paper deals with the application and selection of diesel engines for marine propulsion and auxiliary purposes with particular reference to the special requirements for naval applications. Details are given of the various means that have been developed for dealing with airborne and structure-borne noise, for reducing the effects of external shock, and for checking the quality of lubricating oils during service. Automatic control and protection equipments, including fluidic, are described and the paper finally deals with the means adopted to improve reliability and to reduce maintenance.

A model to optimise the selection of marine dual-fuel low-speed diesel engines

2017 ◽  
Vol 12 (3) ◽  
pp. 138-149 ◽  
Author(s):  
Crístofer Hood Marques ◽  
Carlos Rodrigues Pereira Belchior ◽  
Jean David Job Emmanuel Marie Caprace
Keyword(s):  
Diesel Engines ◽  
Dual Fuel ◽  
Low Speed ◽  
Selection Of

Selection of Charge Air Cooling System for Two-Stroke Cycle Diesel Engines

1985 ◽  
Author(s):  
Herman D. Rass ◽  
Craig O. Henriksen ◽  
Max Nemazi ◽  
Stanley J. Hinkle
Keyword(s):  
Diesel Engines ◽  
Cooling System ◽  
Air Cooling ◽  
Air Cooling System ◽  
Stroke Cycle ◽  
Selection Of

Examination of Initialization and Geometric Details on the Results of CFD Simulations of Diesel Engines

2010 ◽  
Vol 133 (4) ◽  
Author(s):  
Michael J. Bergin ◽  
Ettore Musu ◽  
Sage Kokjohn ◽  
Rolf D. Reitz
Keyword(s):  
Diesel Engines ◽  
Cylinder Head ◽  
Fluid Dynamic ◽  
Direct Injection ◽  
Valve Lift ◽  
Low Temperature Combustion ◽  
Swirl Ratio ◽  
Dynamic Simulations ◽  
Temperature Combustion ◽  
Honeycomb Cell

Computational fluid dynamic simulations using the AVL FIRE and KIVA 3V codes were performed to examine commonly accepted techniques and assumptions used when simulating direct injection diesel engines. Simulations of a steady-state impulse swirl meter validated the commonly used practice of evaluating the swirl ratio of diesel engines by integrating the valve flow and torque history over discrete valve lift values. The results indicate the simulations capture the complex interactions occurring in the ports, cylinder, and honeycomb cell impulse swirl meter. Geometric details of engines due to valve recesses in the cylinder head and piston cannot be reproduced axisymmetrically. The commonly adopted axisymmetric assumption for an engine with a centrally located injector was tested by comparing the swirl and emissions history for a noncombusting and a double injection low temperature combustion case with varying geometric fidelity. Consideration of the detailed engine geometry including valve recesses in the piston altered the swirl history such that the peak swirl ratio at TDC decreased by approximately 10% compared with the simplified no-recess geometry. An analog to the detailed geometry of the full 3D geometry was included in the axisymmetric geometry by including a groove in the cylinder head of the mesh. The corresponding emissions predictions of the combusting cases showed greater sensitivity to the altered swirl history as the air-fuel ratio was decreased.

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