scholarly journals PENGARUH MASA PAKAI DAN TINGKAT TRANSMISI TERHADAP KADAR EMISI GAS BUANG SEPEDA MOTOR HONDA ASTREA GRAND

2011 ◽  
Vol 1 (1) ◽  
Author(s):  
I Made Adi Sayoga
Keyword(s):  
Air Pollution ◽  
Global Warming ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Combustion Process ◽  
Combustion System ◽  
Environmental Preservation ◽  
Emission Standards ◽  
Motor Cycle ◽  
The World

Recently reducing emissions of the harmful gases that generated in the combustion process of the automobile and other internal combustion engine is absolutely essential to environmental preservation. These emissions pollute the environment and contribute to the global warming, acid rain, smog, odours, and respiratory and other health problems. Therefore many countries around the world are taking major efforts to toughen emission standards. Motor cycles, the lagers amount, contributed the major air pollution in Indonesia. The hamful gases that generated in the motor cycles especially CO, HC and NOx . As the motor cycles is getting older, many components in the combustion system are getting worst and contribute more hamfull emissions. This research was done on July 2001 to find out the emissions and was done on Honda Astrea Grand which have been used since 1995, 1996 dan 1997 on the variety of gear level. A multigas analyser was used to analyse the emission gas out form the tile pipe. The result shows that the maximum CO and HC emission are generated by all motor cycle on the first gear. The higerst CO and HC emission is generated by the olderst motor cycle (1995) and the minimum CO and HC emission is generated by the motor cycle that has been used since 1997.

Simulation for the Combustion System Work Process in Internal Combustion Engine

2014 ◽  
Vol 644-650 ◽  
pp. 394-397
Author(s):  
Yan Shi ◽  
Yong Feng Liu ◽  
Xiao She Jia
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Single Injection ◽  
Combustion Process ◽  
Internal Combustion ◽  
Soot Emission ◽  
Cylinder Pressure ◽  
Combustion System ◽  
Work Process ◽  
Pressure Cylinder

In order to simulate the combustion system work process for an internal combustion engine accurately,the paper simulates the combustion process which based on the modified 4JB1 engine and used the KIVA-3V software. Variables such as cylinder pressure, cylinder temperature, NOX and SOOT emission are predicted and analyzed by using single injection strategy.It was found that the production of NOX begins from the moderate burning period, reaches a peak quickly and keep constant. The production of SOOT is mainly in the late of fast burning period to the moderate burning period and most of the SOOT is oxidized.

Experimental Investigations on the Effect of Flow Area of Nano Coated Catalytic Converter

2014 ◽  
Vol 984-985 ◽  
pp. 471-475
Author(s):  
Nattan Ravichandiran ◽  
Ramalingam Senthil ◽  
Govindasamy Mohan
Keyword(s):  
Air Pollution ◽  
Global Warming ◽  
Combustion Engine ◽  
Catalytic Converter ◽  
Vital Role ◽  
Wire Mesh ◽  
Experimental Investigations ◽  
Flow Area ◽  
The World ◽  
The Wire

Now a days the global warming and air pollution are big issue in the world. The more amount of air pollution is due to emissions from an internal combustion engine. Catalytic converter plays a vital role in reducing harmful gases. In this study, the nanocoated catalytic converter efficiency was focused. The flow area of catalytic converter plays a vital role in the conversion of the harmful gases NOx, CO & UHC. The wire mesh coated with Alumina and Ti02 was the conversion medium. By varying the length of the wire mesh, the flow area was changed. The length of the wire mesh substrate was varied by 100mm, 150mm and 200mm. It was experimentally found that the increase in flow area reduces the exhaust emissions smoke, CO, HC and NOx.

Analysis and Research of the Combustion Process of YN4100QB Diesel Engine

2013 ◽  
Vol 744 ◽  
pp. 35-39
Author(s):  
Lei Ming Shi ◽  
Guang Hui Jia ◽  
Zhi Fei Zhang ◽  
Zhong Ming Xu
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Combustion Chamber ◽  
Optimization Design ◽  
Combustion Engine ◽  
Geometric Model ◽  
Combustion Process ◽  
Internal Combustion ◽  
Engine Combustion ◽  
Exhaust Noise

In order to obtain the foundation to the research on the Diesel Engine YN4100QB combustion process, exhaust, the optimal design of combustion chamber and the useful information for the design of exhaust muffler, the geometric model and mesh model of a type internal combustion engine are constructed by using FIRE software to analyze the working process of internal combustion engine. Exhaust noise is the main component of automobile noise in the study of controlling vehicle noise. It is primary to design a type of muffler which is good for agricultural automobile engine matching and noise reduction effect. The present car mufflers are all development means. So it is bound to cause the long cycle of product development and waste of resources. Even sometimes not only can it not reach the purpose of reducing the noise but also it leads to reduce the engine dynamic. The strength of the exhaust noise is closely related to engine combustion temperature and pressure. The calculation and initial parameters are applied to the software based on the combustion model and theory. According to the specific operation process of internal combustion engine. Five kinds of common operation condition was compiled. It is obtained for the detailed distribution parameters of combusted gas temperature pressure . It is also got for flow velocity of the fields in cylinder and given for the relation of the parameters and crankshaft angle for the further research. At the same time NOx emissions situation are got. The numerical results show that not only does it provide the 3D distribution data in different crank shaft angle inside the cylinder in the simulation of combustion process, but also it provides a basis for the engine combustion ,emission research, the optimization design of the combustion chamber and the useful information for the designs of muffler.

Effect of Engine Operating Parameters on Combustion and Emission Characteristics

1992 ◽  
Author(s):  
Jiang Lu ◽  
Ashwani K. Gupta ◽  
Eugene L. Keating
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Chamber ◽  
Internal Combustion Engines ◽  
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.

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

2019 ◽  
Vol 178 (3) ◽  
pp. 182-186
Author(s):  
Zbigniew SROKA ◽  
Maciej DWORACZYŃSKI
Keyword(s):  
Internal Combustion Engine ◽  
Internal Combustion Engines ◽  
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.

scholarly journals Analytical Approach to the Exergy Destruction and the Simple Expansion Work Potential in the Constant Internal Energy and Volume Combustion Process

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 395
Author(s):  
Jeongwoo Song ◽  
Han Ho Song
Keyword(s):  
Internal Combustion Engine ◽  
Analytical Approach ◽  
Combustion Engine ◽  
Combustion Process ◽  
Internal Combustion ◽  
Thermodynamic System ◽  
Exergy Destruction ◽  
Engine Operation ◽  
System Temperature ◽  
Simple Expansion

The exergy destruction due to the irreversibility of the combustion process has been regarded as one of the key losses of an internal combustion engine. However, there has been little discussion on the direct relationship between the exergy destruction and the work output potential of an engine. In this study, an analytical approach is applied to discuss the relationship between the exergy destruction and efficiency by assuming a simple thermodynamic system simulating an internal combustion engine operation. In this simplified configuration, the exergy destruction during the combustion process is mainly affected by the temperature, which supports well-known facts in the literature. However, regardless of this exergy destruction, the work potential in this simple engine architecture is mainly affected by the pressure during the combustion process. In other words, if these pressure conditions are the same, increasing the system temperature to reduce the exergy destruction does not lead to an increase in the expansion work; rather, it only results in an increase in the remaining exergy after expansion. In a typical internal combustion engine, temperatures before combustion timing must be increased to reduce the exergy destruction, but increasing pressure before combustion timing is a key strategy to increase efficiency.

scholarly journals Sir Dugald Clerk, 1854 - 1932

1933 ◽  
Vol 1 (2) ◽  
pp. 101-102
Keyword(s):  
Internal Combustion Engine ◽  
Royal Society ◽  
Scientific Theory ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Practical Experience ◽  
Air Transport ◽  
Modern Development ◽  
New Development ◽  
The World

By the death of Sir Dugald Clerk at the age of 79, the Royal Society has lost one of its greatest engineers. He was one of those rare individuals who combined scientific theory with direct practical experience and that in equal measure. Clerk was born in Glasgow a little before the invention of the internal combustion engine, to which he soon became deeply attached. During the whole of his career, Clerk devoted himself to this new development which he fostered with sympathy, understanding, and with a firm confidence in its future. The vast modern development of road and air transport made possible by the internal combustion engine, we owe directly or indirectly to Sir Dugald Clerk. He, beyond anyone else, is responsible for its development; directly by the work of his own hands and indirectly by his teaching to his innumerable disciples all the world over, all of whom derive the greater part of their knowledge and inspiration from his work.

scholarly journals The accuracy of modelling of the thermal cycle of a compresion ignition engine

2011 ◽  
Vol 144 (1) ◽  
pp. 37-48
Author(s):  
Karol CUPIAŁ ◽  
Wojciech TUTAK ◽  
Arkadiusz JAMROZIK ◽  
Arkadiusz KOCISZEWSKI
Keyword(s):  
Numerical Analysis ◽  
Internal Combustion Engine ◽  
Thermal Cycle ◽  
Fuel Injection ◽  
Combustion Engine ◽  
Combustion Process ◽  
Three Dimensional ◽  
Internal Combustion ◽  
Power Generator ◽  
Ci Engine

The results of numerical analysis the combustion process in turbocharged CI engine 6CT107 are presented in the paper. Engine was installed on the ANDORIA’s power generator of 100 kVA/80 kW. The results of modelling the combustion process for different angle setting fuel injection, compared with the results obtained by indicating the real engine. Numerical analysis was performed in two programs, designed for three-dimensional modelling of the thermal cycle the piston internal combustion engine, namely AVL FIRE and the KIVA-3V.

scholarly journals Special Issue on Wind Turbine Aerodynamics II

2021 ◽  
Vol 11 (18) ◽  
pp. 8728
Author(s):  
Wen Zhong Shen
Keyword(s):  
Air Pollution ◽  
Global Warming ◽  
Renewable Energy ◽  
Wind Turbine ◽  
Special Issue ◽  
Wind Turbine Aerodynamics ◽  
The World

To alleviate global warming and reduce air pollution, the world needs to rapidly shift towards renewable energy [...]

scholarly journals Conversion of internal combustion engine car to semi-autonomous electric car

2021 ◽  
Vol 2070 (1) ◽  
pp. 012203
Author(s):  
Jeffin Francis ◽  
Aby Biju Narayamparambil ◽  
Anupama Johnson ◽  
Jeswant Mathew ◽  
Vishnu Sankar ◽  
...  
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Internal Combustion Engine ◽  
Autonomous Vehicles ◽  
Combustion Engine ◽  
Ghg Emissions ◽  
Autonomous Driving ◽  
Internal Combustion ◽  
Electric Car ◽  
Transportation Sector

Abstract Climate change, Green House Gases (GHG) and global warming are well-known terms in the world today. Global research efforts are focused towards increasing efficiency and reducing GHG emissions from various emitters to deal with climate change. Since the transportation sector accounts for a large share of global GHG emissions it is justifiable that curbing global warming should transpire in this sector. Worldwide there are large number of research taking place in the electrification of transportation sector and autonomous vehicles. In the footsteps of this global trend towards electrification, autonomous driving and automation of the transportation sector, a research to convert an existing internal combustion engine car to an electric car and implementation of few features found in SAE level 1 autonomous vehicles are explored through this project. These features include controlling vehicles remotely, collision detection, parking assistance, etc.

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