Experimental results of hydrogen enrichment of ethanol in an ultra-lean internal combustion engine

2014 ◽  
Vol 39 (24) ◽  
pp. 12980-12990 ◽  
Author(s):  
J.B. Greenwood ◽  
P.A. Erickson ◽  
J. Hwang ◽  
E.A. Jordan
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Experimental Results ◽  
Hydrogen Enrichment

Study on the Match of Ignition Coil with Hydrogen Internal Combustion Engine

2011 ◽  
Vol 201-203 ◽  
pp. 1263-1267
Author(s):  
Xing Hua Liu ◽  
Zhi Qiang Fan ◽  
Feng Jie Lu
Keyword(s):  
Internal Combustion Engine ◽  
Experimental Research ◽  
Discharge Current ◽  
Pulse Width ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Discharge Voltage ◽  
Experimental Results ◽  
Discharge Energy ◽  
Primary Coil

In the paper, by means of the method of directly measuring the discharge voltage and discharge current of ignition coil, the match between hydrogen internal combustion engine (HICE) and ignition coil is studied, and the experimental research of ignition coils’ charging and discharging characteristics is carried out which leads that more accurate discharge energy is obtained. The experimental results show that the ignition coil here meets the need of the ignition of HICE; the energy corresponding to the pulse width of 5ms is the maximum one the primary coil can store; with pulse width constant the oscillation of the voltage leads to different discharge durations; the larger the charge pulse width is, the lower the utilization of coils is.

scholarly journals Theoretical Performance Comparison between Inline, Offset and Twin Crankshaft Internal Combustion Engine Models

2006 ◽  
Vol 2 (1) ◽  
pp. 26
Author(s):  
Uzaldin S. Abdulhussain ◽  
Taj Elssir Hassan ◽  
Maisara Mohy Eldin Gasim
Keyword(s):  
Internal Combustion Engine ◽  
Thrust Force ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Performance Comparison ◽  
Experimental Results ◽  
Engine Model ◽  
Study Results ◽  
Theatrical Performance ◽  
Theoretical Performance

Twin crankshaft is a new engine arrangement introduced to overcome cylinder’s liner wear problems encountered in the conventional inline crankshaft engine due to the effect of the side thrust force. The offset crankshaft arrangement was also introduced to solve the same problem. In this work a computer programs was built to obtain the theoretical performance comparison between the three engines arrangements (inline, twin and offset crankshaft engines), and compared the theatrical performance with the experimental results, which done to the engine’s models. The study results show that the twin crankshaft engine model exhibited no thrust force, and that the thrust force in the offset crankshaft model is smaller than that in the inline crankshaft engine model. These agree with experimental results obtained from the same engine model.

Study of intake manifolds of an internal combustion engine: A new geometry based on experimental results and numerical simulations

2019 ◽  
Vol 9 ◽  
pp. 248-258 ◽  
Author(s):  
Gustavo Rodrigues de Souza ◽  
Cláudio de Castro Pellegrini ◽  
Sérgio Lucas Ferreira ◽  
Felipe Soto Pau ◽  
Octavio Armas
Keyword(s):  
Internal Combustion Engine ◽  
Numerical Simulations ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Experimental Results

АКУСТИЧНА ПОМІТНІСТЬ БЕЗПІЛОТНИХ ЛІТАЛЬНИХ АПАРАТІВ З СИЛОВИМИ УСТАНОВКАМИ НА БАЗІ ПОРШНЕВИХ ДВИГУНІВ

2020 ◽  
pp. 62-80
Author(s):  
В. В. Руденко ◽  
И. В. Калужинов ◽  
Н. А. Андрущенко
Keyword(s):  
Control System ◽  
Internal Combustion Engine ◽  
Power Plants ◽  
Combustion Engine ◽  
Spectral Characteristics ◽  
Experimental Studies ◽  
Internal Combustion ◽  
Detection Range ◽  
Acoustic Signature ◽  
Static Conditions

The presence in operation of many prototypes of UAVs with propeller propellers, the use of such devices at relatively low altitudes and flight speeds makes the problem of noise reduction from UAVs urgent both from the point of view of acoustic imperceptibility and ecology.The aim of the work is to determine a set of methods that help to reduce the visibility of UAVs in the acoustic range. It is shown that the main source of noise from the UAV on the ground is the power plant, which includes the engine and the propeller. The parameters of the power plants influencing the processes that determine the acoustic signature of the UAV were investigated. A comprehensive analysis of the factors affecting visibility was carried out. The power plants include two-stroke and four-stroke engines, internal combustion and two-blade propellers. The use of silencers on the exhaust of the internal combustion engine was considered. The spectral characteristics of the acoustic fields of the propeller-driven power plants for the operating sample of the UAV "Eco" were obtained. The measurements were carried out in one-third octave and 1/48 octave frequency bands under static conditions. The venue is the KhAI airfield. Note that the propellers that were part of the power plants operated at Reynolds numbers (Re0,75<2*105), which can significantly affect its aerodynamic and acoustic characteristics. It is shown that when choosing a UAV control system, one should take into account the fact that two-stroke piston engines are the dominant source in the noise of propeller-driven control systems in the absence of a hood and mufflers in the intake and exhaust tracts. The use of a four-stroke internal combustion engine significantly reduces the noise of the control system. In the general case, the position of the boundaries of the zone of acoustic visibility of a UAV at the location of the observer is determined by the ratio between the intensity of acoustic radiation perceived by the observer from the UAV and the intensity of sound corresponding to the natural acoustic background and depends on the degree of manifestation of acoustic effects accompanying the propagation of sound in a turbulent atmosphere - the refraction of sound waves. Absorption and dissipation of acoustic energy. The calculation and comparison of the UAV detection range was carried out taking into account the existing natural maskers.The results of experimental studies are presented that allow assessing the degree of acoustic signature of the UAV. A set of measures aimed at reducing the intensity of the acoustic signature of the UAV in various regions of the radiation spectrum has been determined.

CONVERTING THE VEHICLE BY REPLACING THE INTERNAL COMBUSTION ENGINE

2019 ◽  
pp. 29-35
Author(s):  
Oleksandr Gryshchuk ◽  
Volodymyr Hladchenko ◽  
Uriy Overchenko
Keyword(s):  
Internal Combustion Engine ◽  
Electric Vehicle ◽  
Electric Motor ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Environmental Safety ◽  
Environmental Conservation ◽  
Sales Forecasts ◽  
Financial Investments ◽  
Near Future

This article looks at some comparative statistics on the development and use of electric vehicles (hereinafter referred to as EM) as an example of sales and future sales forecasts for EM in countries that focus on environmental conservation. Examples of financial investments already underway and to be made in the near future by the largest automakers in the development and distribution of EM in the world are given. Steps are taken to improve the environmental situation in countries (for example, the prohibition of entry into the city center), the scientific and applied problem of improving the energy efficiency and environmental safety of the operation of wheeled vehicles (hereinafter referred to as the CTE). The basic and more widespread schemes of conversion of the internal combustion engine car (hereinafter -ICE) to the electric motor car (by replacing the gasoline or diesel electric motor), as well as the main requirements that must be observed for the safe use and operation of the electric vehicle. The problem is solved by justifying the feasibility of re-equipment of the KTZ by replacing the internal combustion engine with an electric motor. On the basis of the statistics collected by the State Automobile Transit Research Institute on the number of issued conclusions of scientific and technical expertise regarding the approval of the possibility of conversion of a car with an internal combustion engine (gasoline or diesel) to a car with an electric motor (electric vehicle), the conclusions on the feasibility of such conclusion were made. Keywords: electricvehicles, ecological safety, electricmotor, statistics provided, car, vehicle by replacing.

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