scholarly journals USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY FOUR– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)

2020 ◽  
Vol 5 (4(73)) ◽  
pp. 35-41
Author(s):  
A.G. Taranin
Keyword(s):  
Diesel Engines ◽  
Power Supply ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Effective Pressure ◽  
Effective Power ◽  
Data Output ◽  
Shore Power Supply

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total.

scholarly journals USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY TWO– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)

2020 ◽  
Vol 5 (4(73)) ◽  
pp. 42-49
Author(s):  
A.G. Taranin
Keyword(s):  
Diesel Engines ◽  
Power Supply ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Effective Pressure ◽  
Effective Power ◽  
Data Output ◽  
Shore Power Supply

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total.

scholarly journals USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY TWO– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)

2020 ◽  
Vol 1 (27(54)) ◽  
pp. 39-47
Author(s):  
A.G. Taranin
Keyword(s):  
Diesel Engines ◽  
Power Supply ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Effective Pressure ◽  
Effective Power ◽  
Data Output ◽  
Shore Power Supply

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total

scholarly journals USAGE FEATURES OF THE ELECTRONIC INDICATORS FOR SHIP’S AND SHORE POWER SUPPLY FOUR– STROKE INTERNAL COMBUSTION ENGINES (DIESEL ENGINES)

2020 ◽  
Vol 1 (27(54)) ◽  
pp. 32-38
Author(s):  
A.G. Taranin
Keyword(s):  
Diesel Engines ◽  
Power Supply ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Effective Pressure ◽  
Effective Power ◽  
Data Output ◽  
Shore Power Supply

The present publication illuminate the tasks as follows: Electronic indicator proper usage at four–stroke internal combustion engines (diesel engines) indication; Indication results & diagram proper transfer to PC; indicator diagram top dead center TDC correction and engine performance data output values such as PMI–mean indicated pressure, PME–mean effective pressure, NIND–indicated power and NEFF–effective power proper calculations for each cylinder and engine total.

Optimization of the Charge Motion in Internal Combustion Engines Driven by Sewage Gas for CHP-Units

2017 ◽  
Author(s):  
Lucas Konstantinoff ◽  
Lukas Möltner ◽  
Martin Pillei ◽  
Thomas Steiner ◽  
Thomas Dornauer ◽  
...  
Keyword(s):  
Internal Combustion Engines ◽  
Engine Performance ◽  
Internal Combustion ◽  
Optical Methods ◽  
Combustion Engines ◽  
Charge Motion ◽  
Combustion Analysis ◽  
Valve Seat ◽  
Test Engine ◽  
Indication System

In this study, the influence of the charge motion on the internal combustion in a spark ignition sewage gas-driven engine (150 kW) for combined heat and power units was investigated. For this purpose, the geometry of the combustion chamber in the immediate vicinity to the inlet valve seats was modified. The geometrical modification measures were conducted iteratively by integrative determination of the swirl motion on a flow bench, by laser-optical methods and consecutively by combustion analysis on a test engine. Two different versions of cylinder heads were characterized by dimensionless flow and swirl numbers prior to testing their on-engine performance. Combustion analysis was conducted with a cylinder pressure indication system for partial and full load, meeting the mandatory NOx limit of 500 mg m−3. Subsuming the flow bench results, the new valve seat design has a significant enhancing impact on the swirl motion but it also leads to disadvantages concerning the volumetric efficiency. A comparative consideration of the combustion rate delivers that the increased swirl motion results in a faster combustion, hence in a higher efficiency. In summary, the geometrical modifications close to the valve seat result in increased turbulence intensity. It was proven that this intensification raises the ratio of efficiency by 1.6%.

scholarly journals Camshaftless Technology on Internal Engines

2020 ◽  
Vol 5 (2) ◽  
pp. 118-123
Author(s):  
Van Viet Pham
Keyword(s):  
Fuel Consumption ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Control Valve ◽  
Internal Combustion ◽  
Exhaust Valve ◽  
Combustion Engines ◽  
Toothed Belt ◽  
Significant Performance ◽  
Exhaust Valves

Along with the development of internal combustion engines, camshafts have also been developed to optimize engine performance. In all types of internal combustion engines, the crankshaft is connected to the camshaft via a toothed belt, chain or pinion. When the crankshaft turns, the camshaft spins and opens and closes the intake and exhaust valve respectively. However, in this non-camshaft engine technology, each intake and exhaust valve will be integrated with an electronically controlled hydraulic pump unit. This system provides a unique ability to independently control intake and exhaust valves. For any engine load, load and discharge times can be programmed independently. The decision system is based on driving conditions, used to maximize performance or minimize fuel consumption and emissions. This allows a greater degree of control over the engine which in turn provides significant performance benefits. This article presents reviews of camshaftless technology developed by VALEO. It is a system that uses solenoid valves to open and close the valve. The solenoid valve will be mounted right on top of the valve inside the engine. The author can see that the technology using this electronic control valve will help reduce the fuel consumption of the engine.

scholarly journals ANALYSIS OF OPERATION OF INTERNAL COMBUSTION ENGINES WORKING ONE BIOGAS FROM THE LANDFILL WASTES

2019 ◽  
pp. 83-91
Author(s):  
T. V. Dykun ◽  
L. I. Haieva ◽  
F. V. Kozak ◽  
Ya. M. Demianchuk
Keyword(s):  
Fuel Consumption ◽  
Internal Combustion Engines ◽  
Low Cost ◽  
Internal Combustion ◽  
Component Composition ◽  
Combustion Engines ◽  
Resource Base ◽  
Effective Power ◽  
Energy Independence ◽  
Ice Leads

The problem of the effective use of traditional energy sources and the search for alternative resources is currently urgent. Today, in Ukraine, the low-calorie gas potential, which in large quantities is formed in landfills from solid household wastes, in particular biogas, is almost not used. The number of existing domestic installations for the disposal of this gas is insignificant. Today, this valuable resource in quantities of up to 1 billion cubic meters per year is emitted into the atmosphere contaminating it, or burned in flares. Rarely biogas is used in automotive internal combustion engines. However, replacing gasoline with biogas results in reduction in engine power and an increase in fuel consumption. Knowing the component composition of biogas, one can calculate the heat of its combustion and the heat of combustion of gas-air mixtures. According to the results of analytical studies, the graphic dependences of the change in effective power, torque and the effective specific biogas flow rate on engine revolutions were constructed and a comparison of these values with those of a petrol engine was performed. Dependencies show that the use of biogas as a fuel for the ICE leads to a significant reduction of the above parameters: in particular, the effective power decreases to 20%, torque to 22%, and the specific effective fuel consumption increases by 170%. However, due to the low cost of this type of automobile fuel and the considerable resource base for its obtaining in Ukraine, one can conclude - the use of biogas from landfills should be expanded and this is promising, in terms of energy independence of both separate economic entities and the state as a whole.

scholarly journals Thermodynamic modeling of combustion process of the internal combustion engines – an overview

2019 ◽  
Vol 178 (3) ◽  
pp. 27-37 ◽  
Author(s):  
Denys STEPANENKO ◽  
Zbigniew KNEBA
Keyword(s):  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Combustion Process ◽  
Engine Performance ◽  
Internal Combustion ◽  
Air Pollutant ◽  
Combustion Engines ◽  
Engine Simulation ◽  
Toxic Emissions ◽  
The Moment

The mathematical description of combustion process in the internal combustion engines is a very difficult task, due to the variety of phenomena that occurring in the engine from the moment when the fuel-air mixture ignites up to the moment when intake and exhaust valves beginning open. Modeling of the combustion process plays an important role in the engine simulation, which allows to predict in-cylinder pressure during the combustion, engine performance and environmental impact with high accuracy. The toxic emissions, which appears as a result of fuels combustion, are one of the main environmental problem and as a result the air pollutant regulations are increasingly stringent, what makes the investigation of the combustion process to be a relevant task.

Investigating the Origins of Cyclic Variability in Internal Combustion Engines Using Wall-Resolved Large Eddy Simulations

2021 ◽  
Author(s):  
Sicong Wu ◽  
Saumil S. Patel ◽  
Muhsin M. Ameen
Keyword(s):  
Energy Distribution ◽  
Combustion Chamber ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Internal Combustion ◽  
Operating Conditions ◽  
Large Eddy Simulations ◽  
Combustion Engines ◽  
Large Eddy ◽  
Cylinder Flow

Abstract Modern internal combustion engines (ICE) operate at the ragged edge of stable operation characterized by high cycle-to-cycle variations (CCV). A key scientific challenge for ICE is the understanding, modeling, and control of CCV in engine performance, which can contribute to partial burns, misfire, and knock. The objective of the current study is to use high-fidelity numerical simulations to improve the understanding of the causes of CCV. Nek5000, a leading high-order spectral element, open source code, is used to simulate the turbulent flow in the engine combustion chamber. Multi-cycle, wall-resolved large-eddy simulations (LES) are performed for the General Motors (GM), Transparent Combustion Chamber (TCC-III) optical engine under motored operating conditions. The mean and root-mean-square (r.m.s.) of the in-cylinder flow fields at various piston positions are validated using PIV measurements during the intake and compression strokes. The large-scale flow structures, including the swirl and tumble flow patterns, are analyzed in detail and the causes for cyclic variabilities in these flow features are explained. The energy distribution across the different scales of the flow are quantified using one-dimensional energy spectra, and the effect of the tumble breakdown process on the energy distribution is examined. The insights from the current study can help us develop improved engine designs with reduced cyclic variabilities in the in-cylinder flow leading to enhanced engine performance.

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