International Journal of Automotive Engineering and Technologies

International Journal of Automotive Engineering and Technologies

Basic info

  • Publisher: International Journal of Automotive Engineering and Technologies
  • Country of publisher: turkey
  • Date added to EuroPub: 2017/May/11

Subject and more

  • LCC Subject Category: Production, Operation and Manufacturing Management, Design Automation, Electrical and Electronic Engineering, Engineering
  • Publisher's keywords: Engineering, Automotive Materials and Recycling, Manufacturing, Automobile Electronics, Alternative Energy & Vehicle
  • Language of fulltext: english
  • Full-text formats available: PDF

Publication charges

  • Article Processing Charges (APCs): No
  • Submission charges: No
  • Waiver policy for charges? No

Editorial information

Open access & licensing

  • Type of License: CC BY
  • License terms
  • Open Access Statement: Yes
  • Year open access content began: 2012
  • Does the author retain unrestricted copyright? False
  • Does the author retain publishing rights? False

Best practice polices

  • Permanent article identifier: None
  • Content digitally archived in: LOCKSS, CLOCKSS
  • Deposit policy registered in: None

This journal has '81' articles

HYDROGEN USE IN INTERNAL COMBUSTION ENGINE: A REVIEW

HYDROGEN USE IN INTERNAL COMBUSTION ENGINE: A REVIEW

Authors: Murat CİNİVİZ| Technical Education Faculty, Mechanical Education Department, Selçuk University, 42003 Konya, Turkey, Hüseyin KÖSE*| Technical Educatio...
( 35 downloads)
Abstract

Fast depletion of fossil fuels is urgently demanding a carry out work for research to find out the viable alternative fuels for meeting sustainable energy demand with minimum environmental impact. In the future, our energy systems will need to be renewable and sustainable, efficient and cost-effective, convenient and safe. Hydrogen is expected to be one of the most important fuels in the near future to meet the stringent emission norms. The use of the hydrogen as fuel in the internal combustion engine represents an alternative use to replace the hydrocarbons fuels, which produce polluting gases such as carbon monoxide (CO), hydro carbon (HC) during combustion. In this paper contemporary research on the hydrogen-fueled internal combustion engine can be given. First hydrogen-engine fundamentals were described by examining the engine-specific properties of hydrogen and then existing literature were surveyed.

Keywords: Internal combustion engine, hydrogen, emissions, alternative fuel
POTENTIAL OF A MEDIUM GRADE LOW HEAT REJECTION DIESEL ENGINE WITH CRUDE JATROPHA OIL

POTENTIAL OF A MEDIUM GRADE LOW HEAT REJECTION DIESEL ENGINE WITH CRUDE JATROPHA OIL

Authors: N. Janardhan| Mechanical Engineering Department, Chaitanya Bharathi Institute of Technology, Gandipet, Hyderabad-500 075., M.V.S. Murali Krishna| Mech...
( 32 downloads)
Abstract

Investigations were carried out to evaluate the performance of a medium grade LHR diesel engine consisting of air gap insulated piston with 3-mm air gap, with superni (an alloy of nickel) crown and air gap insulated liner with superni insert with different operating conditions of crude jatropha oil with varied injection timing and injection pressure. Performance parameters of brake thermal efficiency (BTE), exhaust gas temperature (EGT) and volumetric efficiency (VE) were determined at various values of brake mean effective pressure (BMEP). Exhaust emissions of smoke and oxides of nitrogen (NOx) were recorded at different values of BMEP. Combustion characteristics of peak pressure (PP), time of occurrence of peak pressure(TOPP), maximum rate of pressure rise (MRPR) and time of occurrence of maximum rate of pressure (TOMRPR) were measured with TDC (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package. Conventional engine (CE) showed deteriorated performance, while LHR engine showed improved performance with crude jatropha oil (CJO) operation when compared with pure diesel operation at recommended injection timing and pressure. The performance of both version of the engine improved with advanced injection timing and higher injection pressure with test fuels. Peak brake thermal efficiency increased by 4%, volumetric efficiency decreased by 8%, smoke levels decreased by 4% and NOx levels increased by 37% with vegetable oil operation on LHR engine at its optimum injection timing, when compared with pure diesel operation on CE at manufacturer’s recommended injection timing.

Keywords: Crude jatropha oil, Diesel, CE, LHR engine, Performance, Exhaust emissions
INVESTIGATION ON VEHICLE USING GASOLINE-BIOETHANOL BLENDED FUELS

INVESTIGATION ON VEHICLE USING GASOLINE-BIOETHANOL BLENDED FUELS

Authors: İlker ÖRS*| Aksaray Vocational School, Aksaray University, 68100 Aksaray, Turkey, Murat CİNİVİZ| Technical Education Faculty, Mechanical Education Dep...
( 32 downloads)
Abstract

The effects of gasoline-bioethanol blended fuels (E50, E85, E100) on vehicle performance (wheel power, fuel consumption) and exhaust emissions (CO, CO2, HC, NOx) of vehicle with spark ignition (SI) engine which is a new generation fuel injection system and electronic ignition system were studied. The tests were performed on a chassis dynamometer while running the vehicle at two different gear (third gear and forth gear), and six different vehicle speeds for both gear. The results obtained from the use of bioethanol–gasoline fuel blends were compared to those of gasoline fuel. The results indicated that when bioethanol–gasoline fuel blends were used, the wheel power decreased and the fuel consumption increased for vehicle performance, and CO, CO2, NOx emissions are decreased, HC emission is increased.

Keywords: Bioethanol, Alternative fuels, Exhaust emissions from vehicle
Investigations on Performance and Emissions of a Stationary DI Diesel Engine with Different Exhaust Gas Recirculation Temperatures

Investigations on Performance and Emissions of a Stationary DI Diesel Engine with Different Exhaust Gas Recirculation Temperatures

Authors: Gurumoorthy S. Hebbar*| Mechanical Engineering Department, Christ University Faculty of Engineering Kanminike, Kumbalagodu –Kengeri, Bangaluru-560074,...
( 33 downloads)
Abstract

This paper addresses the application of Exhaust Gas Recirculation (EGR) for reduced oxides of nitrogen (NOx) emissions from naturally aspirated direct injection stationary diesel engine. Prevailing and future emission norms compel engine manufacturers to incorporate techniques to reduce engine out emissions especially NOX and particulate matter NOx formation predominantly depends on high combustion temperature and literature indicates EGR is an attractive method to reduce combustion temperature. EGR temperature is an important factor while admitting higher percentage of EGR. Higher EGR temperatures caused due to increased loads limit the conduct of higher EGR ratios. EGR cooling can be advantageous when higher ratios of EGR need to be employed. The effect EGR temperature on engine thermal efficiency, NOx, smoke and HC emissions at different load conditions for different EGR percentage are discussed in this paper. NOx reductions and thermal efficiency were found to be better for hot EGR up to about 30% EGR and thereafter EGR cooling shows better results. Smoke and HC emissions increase for both cooled and hot EGR as compared to no EGR case but EGR cooling reduces HC emission as compared to hot EGR.

Keywords: Diesel Engine, Emission, Oxides of Nitrogen, Exhaust Gas Recirculation, Thermal Effect, Dilution Effect
Investigation of the Effect of Using Biodiesel Diesel Engine Fuel System Injectors

Investigation of the Effect of Using Biodiesel Diesel Engine Fuel System Injectors

Authors: Sait ARAS*| Technical and Industrial Vocational High School 42003 Selçuklu / KONYA, Necmettin TARAKÇIOĞLU| Selçuk University, Faculty of Technology 42...
( 30 downloads)
Abstract

In this study, currently used as a fuel in diesel engines instead of diesel fuel, biodiesel from renewable energy sources is used, the mass loss due to wear of diesel engines, injectors, injector opening pressure of diameter shrinkage and as a result, the fuel density and changes in the system flows is investigated Research, a diesel engine, electric motor, for a period of 1000 hours with the motion given to biodiesel, the fuel system was built cycle. At the end of this study, caused by wear, 0,08333 to 0,13893% reduction in diameter of the injector needle, syringe needle bodies decreased from 0,00810 to 0,01494%, 0,00848 to 0,02084% loss in mass bodies injector nozzle, injector opening reduction of 3-5bars pressure and fuel flow volume 0,46 mL/h was observed to be reduced.

Keywords: Biodiesel, diesel engine, injector wear and tear
Clean Energies Development in Built Environment

Clean Energies Development in Built Environment

Authors: Abdeen Mustafa Omer| Energy Research Institute (ERI), Forest Road West, Nottingham NG7 4EU, UK
( 32 downloads)
Abstract

The increased availability of reliable and efficient energy services stimulates new development alternatives. This article discusses the potential for such integrated systems in the stationary and portable power market in response to the critical need for a cleaner energy technology. Throughout the theme several issues relating to renewable energies, environment, and sustainable development are examined from both current and future perspectives. It is concluded that green energies like wind, solar, ground source heat pumps, and biomass must be promoted, implemented, and demonstrated from the economic and/or environmental point view. Biogas from biomass appears to have potential as an alternative energy source, which is potentially rich in biomass resources. This is an overview of some salient points and perspectives of biogas technology. The current literature is reviewed regarding the ecological, social, cultural and economic impacts of biogas technology. This article gives an overview of present and future use of biomass as an industrial feedstock for production of fuels, chemicals and other materials. However, to be truly competitive in an open market situation, higher value products are required. Results suggest that biogas technology must be encouraged, promoted, invested, implemented, and demonstrated, but especially in remote rural areas.

Keywords: Renewable energy technologies, built environment, sustainable development
Turbocharger Lubrication - Lubricant Behavior and Factors That Cause Turbocharger Failure

Turbocharger Lubrication - Lubricant Behavior and Factors That Cause Turbocharger Failure

Authors: Dellis Polichronis| Graduate Mechanical Engineer of the National Technical University of Athens, Scientific cooperator of the Higher School of Pedagog...
( 36 downloads)
Abstract

This paper is a review of the turbocharger lubrication system and at the same time an attempt to point out and analyze the factors responsible for turbocharger wear, damage and failures. In particular, the conditions under which the lubricant works are presented, from its entrance up to its exit from the turbocharger bearing housing. Additionally, the consequences of failure to comply with the instructions for appropriate turbocharger operation are provided by the various manufacturers. Water cooled turbochargers (for which engine coolant is used), contribute significantly to the reduction of lubricant temperature, in the critical zones of its operation. This is achieved by reducing, the danger of the oil “coking” effect (charred oil residues) or its decomposition, because of high temperature occurring in these zones. Turbochargers shaft support development using semi-floating bush bearings has a significant impact on turbocharger manufacturing cost, as well as on their operational features. Further benefit may be had, when ball bearings are used (usually angular contact bearings are used) for turbocharger shaft support as they provide: a) a reduction of the kinetic friction coefficient, b) reduction of turbocharger lag during turbocharger shaft acceleration from low to high speeds, and c) reduced sealing problems. Regarding the failures that occur in turbochargers, their majority - up to 50% - is caused by problematic lubrication [1]. The rest of the failures are divided between causes related to human factors (such as misuse and inadequate maintenance of a turbocharged vehicle) and external factors such as foreign objects entering either the compressor or turbine housings.

Keywords: turbocharger, bearing, lubrication, floating, semi-floating
Performance and exhaust emissions of a spark ignition engine using G-Series and E20 fuels

Performance and exhaust emissions of a spark ignition engine using G-Series and E20 fuels

Authors: Pegah Nematizade| Tarbiat Modares University, Tehran, Iran, Barat Ghobadian*| Tarbiat Modares University, Tehran, Iran, Fathollah Ommi| Tarbiat Modare...
( 31 downloads)
Abstract

In this research paper, performance and exhaust emissions of a spark ignition (SI) engine (XU7JP/L3) is presented. A gasoline-ethanol blend (E20) and G-Series fuel, of GS1 and GS2, which is a mixture of gasoline, ethanol, biodiesel and diesel, is used. The tests results revealed that the power and torque of XU7JP/L3 engine decreases (not significantly) 6.5% and 1.2% for the mixtures of fossil fuel and biofuel blends respectively. In these circumstances, the rate of fuel consumption increases by 36%. The tests results also show that the rate of both UHC and CO faces 8% and 47% reduction but CO2 emission is increased. As a conclusion, it is found that the XU7JP/L3 engine performance is most suitable when it runs on E20 (80% gasoline + 20 % ethanol) and GS1 (10 v% ethanol, 2.5 v% biodiesel, 2.5 v% diesel and 85 v% gasoline).

Keywords: Spark ignition engine, Performance, Emission, Fossil fuel, Biofuel, G-Series
Possibility of Turkey to Transit Electric Vehicle-based Transportation

Possibility of Turkey to Transit Electric Vehicle-based Transportation

Authors: Gökhan Tüccar| Çukurova University, Department of Automotive Engineering, 01330Adana, Turkey, Erdi Tosun| Çukurova University, Department of Automotiv...
( 30 downloads)
Abstract

Electric vehicles (EV) are widely viewed as attractive rivals to internal combustion engines. However, to explore economic challenges of EVs is of crucial importance. This paper analyses the potential of Turkey to transit EV-based transportation. In order to succeed this, previous applications of the country about alternative fuels are introduced and cost effectiveness of electric vehicles against diesel engines is estimated. The analysis indicated that EV provides lower cost than diesel engine driven vehicle. Finally, proposal and recommendations are given to create an EV market in Turkey.

Keywords: Electric vehicles, vehicle choice, Turkey
PERFORMANCE, EXHAUST EMISSIONS AND COMBUSTION CHARACTERISTICS OF MOHR OIL BASED BIODIESEL IN A MEDIUM GRADE LOW HEAT REJECTION DIESEL ENGINE

PERFORMANCE, EXHAUST EMISSIONS AND COMBUSTION CHARACTERISTICS OF MOHR OIL BASED BIODIESEL IN A MEDIUM GRADE LOW HEAT REJECTION DIESEL ENGINE

Authors: T. Ratna Reddy| Research Scholar, Mechanical Engineering, Rayalaseema University, Karnool- 518 502, Andhra Pradesh, India, M.V.S. Murali Krishna| Mech...
( 29 downloads)
Abstract

Experiments were carried out to evaluate the performance of a mohr oil based biodiesel (MOBD) at different operating conditions [normal temperature and pre-heated temperature] in a medium grade low heat rejection (LHR) diesel engine with an air gap insulated piston with superni (an alloy of nickel) crown and air gap insulated liner with superni insert with varied injector opening pressure and injection timing. Performance parameters and exhaust emissions of smoke and oxides of nitrogen (NOx) were determined at different values of brake mean effective pressure (BMEP) of the engine. Combustion characteristics were recorded at peak load operation of the engine. Combustion parameters were measured with TDC (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package. Conventional engine (CE) showed compatible performance with biodiesel operation, while LHR engine showed improved performance at recommended injection timing of 27obTDC (before top dead centre) and recommended injector opening pressure of 190 bar. The performance of both version of the engine improved with advanced injection timing and at higher injector opening pressure when compared with CE with pure diesel operation. The optimum injection timing was 31obTDC for CE while it was 30obTDC with LHR engine with biodiesel operation.

Keywords: Crude vegetable oil, biodiesel, conventional engine, LHR engine, Fuel Performance, Exhaust Emissions
Investigation of biodiesel fuel from canola oil using various reaction parameters

Investigation of biodiesel fuel from canola oil using various reaction parameters

Authors: Hülya Karabaş*| Sakarya University Vocational School of Arifiye, 54580 Sakarya, Turkey
( 31 downloads)
Abstract

The production of biodiesel fuel from canola oil was evaluated in this study. The process of alkali-catalyzed transesterification with methanol was carried out to examine the effects of reaction variables on the formation of methyl ester: variables which included alcohol: oil molar ratios of 3:1, 6:1, 8:1, 10:1, catalyst concentrations of 0.5, 1, 1.5, 2% w/w of oil, reaction temperatures of 30, 40, 50, 60oC, and reaction times of 10, 20, 40, 60 min. The methyl ester yield from each reaction condition is calculated. The optimum conditions for transesterification of canola oil with methanol and KOH as catalyst were found to be 50oC reaction temperature, 1 h reaction time, 8:1 molar ratio of canola oil to methanol and 1% catalyst (w/w). The resultant methyl ester content of 98%, plus all of the other measured properties of the canola biodiesel, compare the international standards EN 14214.

Keywords: Canola oil, methyl ester, transesterification
Investigation of some of the properties of fossil fuels and biofuels blends to use in SI engines

Investigation of some of the properties of fossil fuels and biofuels blends to use in SI engines

Authors: Pegah Nematizade| Tarbiat Modares University, P.O.Box:14115-111, Tehran - Iran, Barat Ghobadian*| Tarbiat Modares University, P.O.Box:14115-111, Tehra...
( 30 downloads)
Abstract

In this research work, gasoline fuel was considered as the base fuel. Bioethanol, biodiesel and diesel fuel were added to gasoline as additives. The fuel blends were first prepared on different volume basis and then, some important properties of the blends including density, dynamic viscosity, kinematic viscosity and water and sediment were evaluated by following ASTM test methods. The obtained data were analyzed and the results showed that increasing the volume percentage of bioethanol, biodiesel and diesel in fuel blends affect the fuel blends properties, these properties helped to identify the effected blended fuels to utilize at SI engine. At second step, 3 optimized blended fuels were selected based on the fuels properties (E20= 20% ethanol and 80% gasoline- GS1=10% ethanol, 2.5% biodiesel, 2.5% diesel and 85% gasoline- GS2= 18.1% ethanol, 4.31% biodiesel, 4.31% diesel and 73.28% gasoline). These optimized blended fuels were utilized in SI engine and the performance and emission parameters were analyzed.

Keywords: Gasoline, Biodiesel, Bioethanol, Diesel, Dynamic viscosity, Kinematic viscosity
Effect of cottonseed oil methyl ester on the performance and exhaust emissions of a vehicle

Effect of cottonseed oil methyl ester on the performance and exhaust emissions of a vehicle

Authors: Ali Kahraman| Selcuk University, Faculty of Technology, Mechanical Engineering Department, 42003, Konya, Turkey, Hidayet Oguz| Necmettin Erbakan Unive...
( 30 downloads)
Abstract

The present work investigates the impact on vehicle performance and exhaust emissions from vehicle when using 100% diesel with petroleum origin (fossil diesel), compared to a mixture of 2-5-100% cottonseed oil methyl ester (COME) in fossil diesel fuel (B2, B5, B100). For the accomplishment of this work an assessment was made using some primary tests on a chassis dynamometer, measuring vehicle performance and emissions. The results demonstrate that the use of biodiesel has a negative effect on vehicle's performance. The increase in average fuel consumption was approximately 1.44 fold for usage of B2, B5 and B100 at forth gear. According to results of exhaust emissions from vehicle, the decrease in average CO emission was approx. 47.2% for usage of B100.

Keywords: Cottonseed oil methyl ester, Vehicle performance, Exhaust pollutant emissions
The fuzzy logic modeling of diesel engine emissions using fuel mixed with different ratios of hydrogen

The fuzzy logic modeling of diesel engine emissions using fuel mixed with different ratios of hydrogen

Authors: Ali Ates*| Selcuk University, Department of Mechanical Engineering, Konya, Turkey, Talip Akbiyik| Necmettin Erbakan University, Seydisehir Vocational...
( 32 downloads)
Abstract

In this study a Rule Based Mamdani-Type Fuzzy Modelling (RBMTF) was used to model and determine exhaust gas emissions of CO, CO2 and NOx of a single cylinder, four strokes, air cooled engine where a certain amount of hydrogen was mixed with the fuel. The RBMTF was developed on MATLAB Fuzzy Logic Toolbox software and supported with additional programs written on the MATLAB. The RBMTF model was designed to have two input parameters (the amount of hydrogen mixed into the diesel fuel and the engine speed) and one output parameter (the emission rates of CO, CO2 and NOx ) described by the ‘if then rules’. When the results obtained from RBMTF and statistical analyses of experimental data were compared, it was determined that R2 values were 97.7 % in CO, 96.84 CO2 and 97.31 % in NOx. These results were considered to be statistically acceptable and the exhaust emission values in hydrogen mixture rates not performed in experimental studies were predicted using RBMTF. As a result, the best results were obtained at the engine speed of 2400 rpm and 20% hydrogen by volume of the fuel.

Keywords: fuzzy expert system, hydrogen mixture rate, alternative fuels, exhaust emissions
The electromechanical control of valve timing at different supply voltages

The electromechanical control of valve timing at different supply voltages

Authors: Bülent ÖZDALYAN*| Karabuk University, Mechnaical Engineering Faculty, 78050, Karabuk, Turkey., Mehmet TAŞLIYOL| Karabük University, Eskipazar Vocation...
( 29 downloads)
Abstract

Electromechanical valve systems (EMS) add advantages to engines in terms of performance and emission by eliminating the limitations of conventional variable valve systems that operate mechanically. Electromechanical valve systems also eliminate the need for certain mechanical parts (such as cam shaft and valve lifters), enabling valve timing to occur at any desired rate as independent of the cam shaft of the engine. End of the experimental works on Authors' previously published papers [1], give us the idea that more investigations are required on controlling the valve timings with ideal voltages. The purpose of this study was to measure the valve profile and electrical behaviour (coil current) of an electromechanical system designed for small volume internal combustion engines at different supply voltages (24 V, 33 V, 42 V, and 48 V), low and high engine speeds (1200 rpm and 3600 rpm), different valve openings (0o, 9o, 18o, 27o, and 36o KMA before the top dead centre), and different closing angles (27o, 36o, 50o, 63o, and 72o KMA after the bottom dead centre). An electromechanical valve system with a supply voltage of 33 V was most suitable for low-speed engine operations in order to achieve the identified valve timing. The amount of electricity consumed by using a 33 V supply voltage instead of a 42 V supply voltage at low engine speeds in the electromechanical valve system was bottom that the amount of electricity consumed by an electromechanical valve system operated with a supply voltage of 42 V at all engine speed intervals.

Keywords: Camless engines, Electro-mechanic valve, Variable valve timings

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