MODULE FOR DIAGNOSIS OF THE INTERNAL COMBUSTION ENGINE IN THE DECISION SUPPORT SYSTEM BY THE CREW OF THE TANKER-GAS CARRIER

Support System ◽

Combustion Engine ◽

Internal Combustion ◽

Diagnostic Tools ◽

Main Function ◽

Diagnostic Module

The article contains information on the development of a module for diagnosing an internal combustion engine in terms of a decision support system for a crew of a gas carrier. The diagnostic module of the internal combustion engine in the decision support system allows reducing the volumes of information processed by the operator, which helps minimize the influence of "a human factor" on safety of a gas carrier operation. The main function of the diagnostic module of internal combustion engines is to detect deviations in values of operational parameters that indicate violations in the state of the nodes and engine parts or failures in operation. Based on the detected deviations, the diagnostic subsystem of the developed module can determine malfunctions of the internal combustion engine at the initial stage and deter its damage. Further, appropriate proposals should be developed for a gas carrier operator to eliminate failures or minimize the negative impact. These imply correcting the modes of operation of the engine or its systems, or taking specific measures to perform maintenance or repair of the relevant units and parts. The module for diagnosing the internal combustion engine in terms of the decision support system is proposed to be built on three-level architecture: primary (lower) level; level of data transmission; control and analytical level. Technical implementation of the developed diagnostic module for internal combustion engine assumes the use of existing diagnostic tools and additional means of collecting information on various engine functional parameters. A block diagram of the internal combustion engine diagnostic module has been provided and the main functions of the decision support system modules have been described. As a result of functioning of the module for diagnosing the internal combustion engine in terms of decision support system for the gas carrier crew, specific recommendations have been developed and displayed, which allows avoiding dangerous and emergency situations in the operation process.

ASME 1992 International Computers in Engineering Conference: Volume 1 — Artificial Intelligence; Expert Systems; CAD/CAM/CAE; Computers in Fluid Mechanics/Thermal Systems ◽

Effect of Engine Operating Parameters on Combustion and Emission Characteristics

10.1115/cie1992-0080 ◽

1992 ◽

Author(s):

Jiang Lu ◽

Ashwani K. Gupta ◽

Eugene L. Keating

Keyword(s):

Combustion Chamber ◽

Combustion Engine ◽

Combustion Process ◽

Pressure Rise ◽

Internal Combustion ◽

Operating Parameters ◽

Emission Characteristics ◽

Pollutants Emission

Abstract Numerical simulation of flow, combustion, heat release rate and pollutants emission characteristics have been obtained using a single cylinder internal combustion engine operating with propane as the fuel. The data are compared with experimental results and show excellent agreement for peak pressure and the rate of pressure rise as a function of crank angle. The results obtained for NO and CO are also found to be in good agreement and are similar to those reported in the literature for the chosen combustion chamber geometry. The results have shown that both the combustion chamber geometry and engine operating parameters affects the flame growth within the combustion chamber which subsequently affects the pollutants emission levels. The code employed the time marching procedure and solves the governing partial differential equations of multi-component chemically reacting fluid flow by finite difference method. The numerical results provide a cost effective means of developing advanced internal combustion engine chamber geometry design that provides high efficiency and low pollution levels. It is expected that increased computational tools will be used in the future for enhancing our understanding of the detailed combustion process in internal combustion engines and all other energy conversion systems. Such detailed information is critical for the development of advanced methods for energy conservation and environmental pollution control.

Individual drive of internal combustion engine lubrication system based on switched reluctance motor

Energy Engineering and Control Systems ◽

10.23939/jeecs2020.02.146 ◽

2020 ◽

Vol 6 (2) ◽

pp. 146-151

Author(s):

Ihor Holovach ◽

◽

Lidiia Kasha ◽

Ivan Hudzii

Keyword(s):

Combustion Engine ◽

Switched Reluctance Motor ◽

Internal Combustion ◽

Hydrodynamic Resistance ◽

Lubrication System ◽

Resistance Characteristic ◽

Switched Reluctance ◽

Reluctance Motor

The article analyses the modern lubrication systems for internal combustion engines. Systems with mechanical drive components that contain mechanical and electronic components have been found to have a number of disadvantages. In particular, when the internal combustion engine is started cold, when the viscosity of the oil is high, the hydrodynamic resistance characteristic rises sharply, which leads to high pressure at low speeds and the drive requires low pump speeds. Again, the increase in oil temperature causes a decrease in viscosity, the hydrodynamic resistance characteristic becomes flatter. This, in turn, reduces the pressure in the lubrication system and requires an increase in pump speed in order to keep the pressure constant. Based on the analysis, the requirements for lubrication systems are formulated and a separate lubrication system with forced oil supply is proposed in this paper. For the drive of pump lubrication system of the internal combustion engine, a switched reluctance motor is proposed and calculated. Such motor by its qualities is one of the most useful in this type of systems.

Sistem Pendukung Keputusan Kelayakan Pemberian Asuransi Jiwa Untuk Nelayan dengan Menggunakan Metode Vikor (Studi Kasus: Dinas Kelautan dan Perikanan Medan)

Jurnal Sistem Komputer dan Informatika (JSON) ◽

10.30865/json.v1i3.2162 ◽

2020 ◽

Vol 1 (3) ◽

pp. 220

Author(s):

Amatillah Nasution ◽

Kurnia Ulfa

Keyword(s):

Decision Making ◽

Decision Support ◽

Decision Support System ◽

Support System ◽

Management Decision ◽

Main Function ◽

System Method ◽

Management Decision Making ◽

Decision Alternatives ◽

Alternative Solutions

Life insurance is a term used to refer to actions, systems, or businesses in which financial protection (or financial compensation) for life, property, health and so on gets reimbursed from unexpected events that can occur such as death , loss, damage or illness, which involves regular premium payments over a period of time in exchange for a policy that guarantees such protection. The term "insured" usually refers to everything that gets protection. Decision Support System is defined a system intended to support management decision making, Decision making is the main function of a manager or administrator. Decision making activities include identifying problems, finding alternative solutions to problems, evaluating these alternatives and choosing the best decision alternatives. The Vise Kriterijumska Optimazacija Kompromisno Resenje (VIKOR) method is one of the methods used in decision making. To use the decision support system method must have criteria that will be used in the determination, in addition it must determine the level of importance of each criterion. So the decision support system used must also have comprehensive and integrated planning to minimize the level of risk of failure and decision selection

Assessment of thermodynamic cycle of internal combustion engine in terms of rightsizing

Combustion Engines ◽

10.19206/ce-2019-331 ◽

2019 ◽

Vol 178 (3) ◽

pp. 182-186

Author(s):

Zbigniew SROKA ◽

Maciej DWORACZYŃSKI

Keyword(s):

Combustion Engine ◽

Combustion Process ◽

Thermodynamic Cycle ◽

Internal Combustion ◽

Research Problem ◽

Combustion Engines ◽

Operating Characteristics ◽

Swept Volume

The modification of the downsizing trend of internal combustion engines towards rightsizing is a new challenge for constructors. The change in the displacement volume of internal combustion engines accompanying the rightsizing idea may in fact mean a reduction or increase of the defining swept volume change factors and thus may affect the change in the operating characteristics as a result of changes in combustion process parameters - a research problem described in this publication. Incidents of changes in the displacement volume were considered along with the change of the compression space and at the change of the geometric degree of compression. The new form of the mathematical dependence describing the efficiency of the thermodynamic cycle makes it possible to evaluate the opera-tion indicators of the internal combustion engine along with the implementation of the rightsizing idea. The work demonstrated the in-variance of cycle efficiency with different forms of rightsizing.

FEATURES OF MEASURING THE CAMSHAFT OF INTERNAL COMBUSTION ENGINES

the System analysis and logistics ◽

10.31799/2077-5687-2021-4-99-105 ◽

2021 ◽

Vol 4 (30) ◽

pp. 99-105

Author(s):

A. V. Summanen ◽

◽

S. V. Ugolkov ◽

Keyword(s):

Combustion Engine ◽

Internal Combustion ◽

Technical Condition ◽

Combustion Engines

This article discusses the issues of assessing the technical condition of the camshaft, internal combustion engine. The necessary parameters for assessing the technical condition of the engine camshaft have been determined. How and how to measure and calculate this or that parameter is presented in detail. Methods for calculating the parameters are presented. A scheme and method for measuring neck wear, determining the height of the cam, determining the beating of the central journal of the camshaft are proposed. The main defects of the camshafts are presented. The issues of the influence of these parameters on the operability of the camshaft and the internal combustion engine as a whole are considered.

Possibility of using gas lubricant in the cylinders of internal combustion engines of transport vehicles

10.36652/0042-4633-2021-5-13-20 ◽

2021 ◽

pp. 13-20

Author(s):

Keyword(s):

Bearing Capacity ◽

Power Plants ◽

Combustion Engine ◽

Internal Combustion ◽

Combustion Engines ◽

Engine Piston ◽

Suspension Stiffness ◽

Gas Layer

The prospects of using the gas-static suspension of the internal combustion engine piston in transport vehicles and power plants are considered. The diagram of the piston and the method for calculating the stiffness and bearing capacity of the gas layer surrounding the piston are presented, as well as the results of experiments that showed the relevance of this method. The possibility of gas and static centering of the engine piston is confirmed. Keywords: internal combustion engine, piston, gasstatic suspension, stiffness, bearing capacity, gas medium. [email protected]

Application of precision chronometric technologies for monitoring deviations in the internal combustion engine operation

Engineering Journal Science and Innovation ◽

10.18698/2308-6033-2021-11-2126 ◽

2021 ◽

Author(s):

E.T. Plaksina ◽

A.B. Syritsky ◽

A.S. Komshin

Keyword(s):

Combustion Engine ◽

Internal Combustion ◽

The Arctic ◽

Diagnostic Systems ◽

Time Intervals ◽

Angle Sensor ◽

Engine Operation ◽

Working Cycle

The article considers the main methods of internal combustion engine diagnostics. A method based on measuring the time intervals between the phases of the working cycle of the mechanism is described. An algorithm for measuring the time intervals from the formulation of the problem to the proof of the efficiency of this method on an internal combustion engine has been determined. The installation of the angle sensor on the crankshaft of the experimental bench engine VAZ 21126 is shown. The basis for the construction of a mathematical model of the crankshaft is presented and the main factors influencing its movement are identified. A criterion has been established according to which the misfire is determined most accurately. The results obtained can be used for developing diagnostic systems for internal combustion engines, as well as engines operating in extreme conditions, for example, beyond the Arctic Circle, on ships, etc.

Effect of IC Engine Operating Conditions on Combustion and Emission Characteristics

Journal of Fluids Engineering ◽

10.1115/1.2910201 ◽

1993 ◽

Vol 115 (4) ◽

pp. 694-701 ◽

Cited By ~ 2

Author(s):

Jiang Lu ◽

Ashwani K. Gupta ◽

Eugene L. Keating

Keyword(s):

Combustion Chamber ◽

Combustion Engine ◽

Internal Combustion ◽

Operating Conditions ◽

Emission Characteristics ◽

Ic Engine ◽

Pollutants Emission ◽

Good Agreement

Numerical simulation of flow, combustion, heat release rate, and pollutants emission characteristics have been obtained using a single cylinder internal combustion engine operating with propane as the fuel. The data show that for good agreement with experimental results on the peak pressure and the rate of pressure rise as a function of crank angle, spark ignition energy and local cylinder pressure must be properly modeled. The results obtained for NO and CO showed features which are qualitatively in good agreement and are similar to those reported in the literature for the chosen combustion chamber geometry. The results have shown that both the combustion chamber geometry and engine operating parameters affects the flame growth within the combustion chamber which subsequently affects the pollutants emission levels. The code employed the time marching procedure and solves the governing partial differential equations of multicomponent chemically reacting fluid flow by finite difference method. The numerical results provide a cost effective means of developing advanced internal combustion engine chamber geometry design that provides high efficiency and low pollution levels. It is expected that increased computational tools will be used in the future for enhancing our understanding of the detailed combustion process in internal combustion engines and all other energy conversion systems. Such detailed information is critical for the development of advanced methods for energy conservation and environmental pollution control.

Simulation of Instantaneous Heat Transfer in Spark Ignition Internal Combustion Engines: Unsteady Thermal Boundary Layer Modelling

ASME 2009 Internal Combustion Engine Division Fall Technical Conference ◽

10.1115/icef2009-14056 ◽

2009 ◽

Cited By ~ 2

Author(s):

David R. Buttsworth ◽

Abdalla Agrira ◽

Ray Malpress ◽

Talal Yusaf

Keyword(s):

Heat Transfer ◽

Boundary Layer ◽

Thermal Boundary Layer ◽

Combustion Engine ◽

Internal Combustion ◽

Restrictive Assumption ◽

Low Dimensional ◽

Energy Equations

Simulation of internal combustion engine heat transfer using low-dimensional thermodynamic modelling often relies on quasi-steady heat transfer correlations. However, unsteady thermal boundary layer modelling could make a useful contribution because of the inherent unsteadiness of the internal combustion engine environment. Previous formulations of the unsteady energy equations for internal combustion engine thermal boundary layer modelling appear to imply that it is necessary to adopt the restrictive assumption that isentropic processes occur in the gas external to the thermal boundary layer. Such restrictions are not required and we have investigated if unsteady modelling can improve the simulation of crank-resolved heat transfer. A modest degree of success is reported for the present modelling which relies on a constant effective turbulent thermal conductivity. Improvement in the unsteady thermal boundary layer simulations is expected in future when the temporal and spatial variation in effective turbulent conductivity is correctly modelled.

Performance study of the hypocycloid gear mechanism for internal combustion engine applications

International Journal of Engine Research ◽

10.1177/1468087419893583 ◽

2019 ◽

pp. 146808741989358 ◽

Cited By ~ 1

Author(s):

Mostafa A ElBahloul ◽

ELsayed S Aziz ◽

Constantin Chassapis

Keyword(s):

Thermodynamic Model ◽

Combustion Engine ◽

Internal Combustion ◽

Combustion Engines ◽

Otto Cycle ◽

Engine Efficiency ◽

Gear Mechanism ◽

Crank Mechanism

Fuel conversion efficiency is one of the main concerns in the field of internal combustion engine systems. Although the Otto cycle delivers the maximum efficiency possible in theory, the kinematics of the slider–crank mechanism of the conventional internal combustion engines makes it difficult to reach this level of efficiency in practice. This study proposes using the unique hypocycloid gear mechanism instead of the conventional slider–crank mechanism for the internal combustion engines to increase engine efficiency and minimize frictional power losses. The hypocycloid gear mechanism engine’s kinematics provides the means for the piston-rod assembly to reciprocate in a straight-line motion along the cylinder axis besides achieving a nonlinear rate of piston movement. As a result, this characteristic allows for a true constant-volume combustion, which in turn would lead to higher work output. An in-cylinder gas volume change model of the hypocycloid gear mechanism engine was developed and incorporated into the thermodynamic model for the internal combustion engine cycle. The thermodynamic model of the hypocycloid gear mechanism engine was developed and simulated using MATLAB/Simulink software. A comparison between the conventional engine and the hypocycloid gear mechanism engine in terms of engine performance characteristics showed the enhancements achieved using hypocycloid gear mechanism for internal combustion engine applications. The hypocycloid gear mechanism engine analysis results indicated higher engine efficiency approaching that of the Otto cycle.