The Effect of Misfire on the Emission and Engine Performance of a Single Cylinder Motorcycle Engine

2012 ◽  
Vol 516-517 ◽  
pp. 1655-1659
Author(s):  
Chang Tai Wu ◽  
Liang Chun Lu ◽  
Jau Huai Lu
Keyword(s):  
Engine Performance ◽  
Operating Conditions ◽  
Engine Exhaust ◽  
Engine Torque ◽  
Single Cylinder ◽  
Low Load ◽  
Unburned Hydrocarbons ◽  
Engine Emission ◽  
Motorcycle Engine ◽  
Dynamometer Test

A misfire controller developed by the authors was used in this paper to investigate the effect of misfire on the emission and engine performance of a single cylinder motorcycle engine. Three kinds of test were carried out, the idle test, the engine dynamometer tests, and the chassis test. It was found that in the engine dynamometer tests, the concentration of unburned hydrocarbons in the engine exhaust was raised and the engine torque declined as the misfire rate increased. The variations of the CO and CO2 are not the same in different operating conditions. At low load, CO concentration increased with the misfire rate while CO2 moved in an opposite direction. Contrary condition happened at high load. The CO2 concentration increased with the misfire rate while CO varied in the opposite way. Results of idle test showed that misfire would cause moderate deterioration of engine emission. However, chassis dynamometer test showed that even 1% of misfire would cause severe increase of emission.

Characteristics of Water-in-Diesel Emulsions in a Single Cylinder Compression Ignition Engine

2014 ◽  
Author(s):  
Teja Gonguntla ◽  
Robert Raine ◽  
Leigh Ramsey ◽  
Thomas Houlihan
Keyword(s):  
Fuel Consumption ◽  
Direct Injection ◽  
Engine Performance ◽  
Operating Conditions ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Compression Ignition Engine ◽  
Oil Emulsion ◽  
Single Cylinder ◽  
Performance And Emission

The objective of this project was to develop both engine performance and emission profiles for two test fuels — a 6% water-in-diesel oil emulsion (DOE-6) fuel and a neat diesel (D100) fuel. The testing was performed on a single cylinder, direct-injection, water-cooled diesel engine coupled to an eddy current dynamometer. Output parameters of the engine were used to calculate Brake Specific Fuel Consumption (BSFC) and Engine Efficiency (η) for each test fuel. DOE-6 fuels generated a 24% reduction in NOX and a 42% reduction in Carbon Monoxide emissions over the tested operating conditions. DOE-6 fuels presented higher ignition delays — between 1°-4°, yielded 1%–12% lower peak cylinder pressures and produced up to 5.5% lower exhaust temperatures. Brake Specific Fuel consumption increased by 6.6% for the DOE-6 fuels as compared to the D100 fuels. This project is the first research done by a New Zealand academic institution on water-in-diesel emulsion fuels.

scholarly journals Pengaruh Campuran Bahan Bakar Pertalite-Bioetanol Biji Sorghum pada Mesin Bensin

2020 ◽  
Vol 9 (2) ◽  
pp. 91
Author(s):  
Abdi Hanra Sebayang ◽  
Husin Ibrahim ◽  
Surya Dharma ◽  
Arridina Susan Silitonga ◽  
Berta Br Ginting ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Gasoline Engine ◽  
Raw Materials ◽  
Engine Performance ◽  
Exhaust Gas ◽  
Engine Exhaust ◽  
Engine Torque ◽  
Fuel Blends ◽  
Exhaust Gas Emission ◽  
Hc Emissions

The depletion of fossil fuels, rising of earth temperatures and declining of air quality are an unavoidable phenomenon today. Bioethanol fuel is one solution to reduce this problem that comes from renewable raw materials. The purpose of this study is to investigate engine performance and exhaust emissions at gasoline engine by using the sorghum seeds bioethanol-pertalite blends with different mixed ratios (10%, 15%, and 20%). The test is performed on a four-stroke gasoline engine without modification. Engine speeds vary from 1000 to 4000 rpm, and properties of the sorghum seeds bioethanol-pertalite blends are measured and analyzed. In addition, engine torque, brake power, brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE) as well as carbon monoxide (CO), hydrocarbon (HC), and nitrogen oxide (NOx) emissions are measured. The results show that BSFC decreased while BTE increased for a fuel blends containing 20% bioethanol at 3500 rpm engine speed, with each maximum value of 246.93 g/kWh and 36.28%. It is also found that CO and HC emissions are lower for the sorghum seeds bioethanol-pertalite blends. Based on the research results, it can be concluded that the sorghum seeds bioethanol-pertalite blends can improve engine performance and reduce exhaust gas emissions. Keywords: bioethanol; pertalite; performance engine; exhaust gas emission; alternatif fuel.

scholarly journals Utilization of Waste Cooking Oil via Recycling as Biofuel for Diesel Engines

Recycling ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 13
Author(s):  
Hoi Nguyen Xa ◽  
Thanh Nguyen Viet ◽  
Khanh Nguyen Duc ◽  
Vinh Nguyen Duy
Keyword(s):  
Cooling Water ◽  
Engine Performance ◽  
Waste Cooking Oil ◽  
Operating Conditions ◽  
Operating Characteristics ◽  
Engine Torque ◽  
Cooking Oil ◽  
Lubricant Oil ◽  
Test Engine ◽  
All Speeds

In this study, waste cooking oil (WCO) was used to successfully manufacture catalyst cracking biodiesel in the laboratory. This study aims to evaluate and compare the influence of waste cooking oil synthetic diesel (WCOSD) with that of commercial diesel (CD) fuel on an engine’s operating characteristics. The second goal of this study is to compare the engine performance and temperature characteristics of cooling water and lubricant oil under various engine operating conditions of a test engine fueled by waste cooking oil and CD. The results indicated that the engine torque of the engine running with WCOSD dropped from 1.9 Nm to 5.4 Nm at all speeds, and its brake specific fuel consumption (BSFC) dropped at almost every speed. Thus, the thermal brake efficiency (BTE) of the engine fueled by WCOSD was higher at all engine speeds. Also, the engine torque of the WCOSD-fueled engine was lower than the engine torque of the CD-fueled engine at all engine speeds. The engine’s power dropped sequentially through 0.3 kW, 0.4 kW, 0.6 kW, 0.9 kW, 0.8 kW, 0.9 kW, 1.0 kW and 1.9 kW.

The Effect of the Exhaust Pipe Arrangement on Motorcycle Engine Acoustics

2006 ◽  
Author(s):  
Frank K. T. Lin
Keyword(s):  
Flow Rate ◽  
Engine Performance ◽  
Sound Level ◽  
Exhaust Pipe ◽  
Engine Exhaust ◽  
Pipe Length ◽  
Major Function ◽  
Exhaust Noise ◽  
Motorcycle Engine ◽  
Unequal Length

This paper uses a commercial CAE software GT-POWER to simulate the V-twin cylinder motorcycle engine exhaust acoustics. Ten different engine exhaust pipes with equal and unequal length and with or without arc connecting tube are designed. The engine performance and tailpipe exhaust noise on nineteen different engine speeds from 1000rpm to 10000rpm in wide-open throttle are studied. It is found that the effect of exhaust pipe configuration on the engine performance appears to be negligible. The tailpipe exhaust flow rate will be reduced and the overall sound level will bring down as the arc tube is connected to the exhaust front pipes. Also, the equal pipe length adapted with arc tube design gives a major function on pressure attenuation which may reduce the noise level significantly. The results may be useful for exhaust pipe design.

scholarly journals THE EFFECT OF BRASS (Cu-Zn) CATALYTIC CONVERTER ENGINE PERFORMANCE

2021 ◽  
Vol 2 (2) ◽  
pp. 035-043
Author(s):  
Ellyanie Ellyanie ◽  
Devan Oktabri H
Keyword(s):  
Thermal Efficiency ◽  
Catalytic Converter ◽  
Engine Performance ◽  
Engine Exhaust ◽  
Performance Factors ◽  
Engine Efficiency ◽  
Brake Dynamometer ◽  
Power Measurements ◽  
Motorcycle Engine ◽  
Typical Method

Installing a catalytic converter in the exhaust is a typical method of reducing engine exhaust emissions. Catalytic converters have been shown to lower exhaust pollutants while enhancing engine performance. The influence of the number of brass catalyst plates (Cu-Zn) on the Performance of the commercial Yamaha Jupiter MX motorcycle engine manufactured in 2007 was investigated in this study. The catalyst is installed in the motorbike exhaust, with the number of catalyst plates varying between 5 and 8, and a conventional uncatalyzed exhaust serving as a comparison. Torque, power, specific fuel consumption, and thermal efficiency are among the performance factors that will be considered. A prony brake dynamometer was used to conduct torque and power measurements. The results indicate that exhaust with eight catalyst plates can improve engine performance more than an exhaust with five catalyst plates. Furthermore, exhausts equipped with eight catalyst plates can boost engine efficiency by an average of 17.65%. Thus, increasing the number of catalyst brass plates improves the machine's efficiency.

scholarly journals Prototype of Disc Brake Dynamometer

2020 ◽  
Author(s):  
Pakkip Kraisoda
Keyword(s):  
Thermal Efficiency ◽  
Performance Test ◽  
Gasoline Engine ◽  
Engine Performance ◽  
Performance Standard ◽  
Engine Torque ◽  
Single Cylinder ◽  
Disk Brake ◽  
Single Cylinder Engine ◽  
Brake Dynamometer

Abstract This paper presents the design and test of prototype of Disk Brake Dynamometer of Single-cylinder engine performance standard Brake horsepower with water using the Honda GX-200 four-stroke 196 cm3 gasoline engine, 1-cylinder gasohol 95 fuel. The experiment result showed that the Prototype of Disk brake Dynamometer maximum engine torque was 11.58 N m at 2500 rpm. The maximum power of engine was 3.29 kW at 3000 rpm and maximum thermal efficiency of engine brake was 25.36% at 2500 rpm. When being compared the performance of a standard single-cylinder engine performance test with the all-purpose gasoline engine Honda GX-200 1-stroke 4-stroke 196 cm3 gasohol 95, it was found that Maximum engine torque was less than 5.39%, the maximum engine power was higher than 2.49%, the maximum fuel consumption of the engine was higher than 10% and the maximum thermal efficiency of the engine was higher than 2.39%.

Experimental Investigations on Combustion, Performance and Emission Characteristics of Neat Jatropha Biodiesel and its Methanol Blend in a Diesel Engine

2012 ◽  
Author(s):  
J. Thangaraja ◽  
K. Anand ◽  
Pramod S. Mehta
Keyword(s):  
Methyl Ester ◽  
Engine Performance ◽  
Experimental Results ◽  
Experimental Investigations ◽  
Injection Timing ◽  
Nox Emissions ◽  
Engine Exhaust ◽  
Performance And Emission ◽  
Full Load Operation ◽  
Unburned Hydrocarbons

While engines fueled with neat or blended biodiesel have favorable combustion-emission profile in terms of carbon monoxide, particulate matter and unburned hydrocarbons emissions, they are reported to have higher NOx emissions as compared to petro-diesel. On the other hand, use of alcohols especially methanol, though limited in diesel engines, is found to decrease engine exhaust emissions including smoke and NOx emissions. The present experimental investigation evaluates the use of biodiesel-methanol blend in mitigating higher NOx emissions in biodiesel fuelled engines along with its effect on other engine performance conditions. The experimental results obtained for a blend of 90% Jatropha methyl ester and 10% methanol (J90M10) and neat Jatropha methyl ester (J100) by varying engine output load at maximum torque speed of 1400 rpm are analyzed and discussed in this paper. The experimental results at full load operation for J90M10 blend compared with neat J100 indicate a reduction in exhaust nitric oxide and smoke concentrations by 28% and 50% respectively along with a reduction of 2% in peak pressure and 0.5% in brake thermal efficiency. Also, a marginal retard in injection timing and a higher ignition delay period is observed with Jatropha methyl ester -methanol blend operation.

HC and CO Emission Abatement via Selective Fuel Injection

1982 ◽  
Author(s):  
D. W. Bahr
Keyword(s):  
Fuel Injection ◽  
Engine Performance ◽  
Operating Conditions ◽  
Engine Fuel ◽  
Emission Abatement ◽  
Turbofan Engines ◽  
Operational Characteristics ◽  
Full Complement ◽  
Unburned Hydrocarbons ◽  
Co Emission

The results of investigations to develop carbon monoxide (CO) and unburned hydrocarbons (HC) abatement methods for use in aircraft turbofan engines are reviewed. Specifically, the use of selective fuel injection patterns at ground idle operating conditions in CF6 engines was assessed and evolved in combustor and engine tests. These fueling patterns were obtained by valving fuel to selected combinations of fuel nozzles at idle, rather than to the full complement of engine fuel nozzles, and were intended to provide localized fuel-air ratio enrichment within the combustor annulus. In addition to the effects of such fueling patterns on HC and CO levels, their effects on engine performance at starting, sub-idle, and idle conditions were determined. The use of repetitive clusters of fueled nozzles around the combustor annulus was determined to provide the best overall emission abatement, performance, and operational characteristics.

scholarly journals Field Test of a 1.5 MW Industrial Gas Turbine With a Low Emissions Catalytic Combustion System

1999 ◽  
Author(s):  
Ralph A. Dalla Betta ◽  
Sarento G. Nickolas ◽  
Chris K. Weakley ◽  
Kare Lundberg ◽  
Tim J. Caron ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Catalytic Combustion ◽  
Engine Performance ◽  
Test Facility ◽  
Load Range ◽  
Engine Exhaust ◽  
Operating Load ◽  
Combustion Technology ◽  
Industrial Gas Turbine ◽  
Dynamometer Test

Combustor hardware employing catalytic combustion technology has been developed for a 1.5 MW gas turbine. This system, combined with state of the art catalyst technology, was used to demonstrate ultra-low emissions on the engine. The demonstrator combustor utilizes a two stage lean premix preburner system to obtain the required catalyst inlet temperatures and low NOx over the operating load range. The performance of the preburner system was characterized during engine tests by measuring temperature rise and emissions just downstream of the preburner. A fuel schedule for the primary and secondary stages was selected to give NOx emissions below 2 ppmv at the engine exhaust. Overall engine performance was measured over the full load range. Emissions of NOx < 3 ppmv and CO and UHC < 5 ppmv were obtained at 72% to 100% load. Combustor dynamics were shown to be less than 0.3 psi(rms). This combustor operated for 1000 hours on a dynamometer test facility and showed low emissions performance over this period.

Experimental Evaluation of Turbo-Matching Appropriateness of B60J67, B60J68, A58N70 and A58N72 Turbo-Chargers for a Commercial Vehicle Engine

2018 ◽  
Vol 6 (11) ◽  
pp. 71
Author(s):  
Badal Dev Roy ◽  
R. Saravanan
Keyword(s):  
Internal Combustion Engines ◽  
Perfect Match ◽  
Engine Performance ◽  
Operating Conditions ◽  
Data Logger ◽  
Negative Effects ◽  
Road Test ◽  
The Road ◽  
A Charge ◽  
All Speeds

The Turbocharger is a charge booster for internal combustion engines to ensure best engine performance at all speeds and road conditions especially at the higher load.  Random selection of turbocharger may lead to negative effects like surge and choke in the breathing of the engine. Appropriate selection or match of the turbocharger (Turbomatching) is a tedious task and expensive. But perfect match gives many distinguished advantages and it is a one time task per the engine kind. This study focuses to match the turbocharger to desired engine by simulation and on road test. The objective of work is to find the appropriateness of matching of turbochargers with trim 67 (B60J67), trim 68 (B60J68),  trim 70 (A58N70) and trim 72 (A58N72) for the TATA 497 TCIC -BS III engine. In the road-test (data-logger method) the road routes like highway and slope up were considered for evaluation. The operating conditions with respect various speeds, routes and simulated outputs were compared with the help of compressor map.

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