scholarly journals PENGARUH PEMANASAN BAHAN BAKAR MELALUI PIPA BERSIRIP TRANSVERSAL PADA UPPER TANK RADIATOR DAN PENAMBAHAN ETANOL TERHADAP EMISI GAS BUANG PADA TOYOTA KIJANG

Author(s):  
Danar Susilo Wijayanto ◽  
Ngatou Rohman ◽  
Ranto Ranto ◽  
Husin Bugis ◽  
Ahmad Yuhsin Sukisno ◽  
...  

<p>The purpose of this study were to determine the effect usage of gasoline heating through a capillary<br />tube which is transversal finned in the upper tank of radiator on exhaust emissions of CO and HC in the engine<br />of Toyota Kijang. This study is experimental. The sample in this study was the machine of Toyota Kijang. Free<br />variable of the research is the usage of fuel heating with fin variations on the copper capillar tube consist of<br />copper capillar tube without fin, finned copper capillar tube with the ranges between the fins are 10 mm, 20 mm,<br />and 30 mm and variations of ethanol in premium 0%, 5%, 10%, 15%, 20%, 25%, and 30%. Experimental<br />method to measure exhaust emissions of CO and HC in the engine of Toyota Kijang. The result of this research<br />shows that (1) The lowest carbonmonoxide gas emissions level was foundin the heating of copper pipe with 20<br />mm fins distance in the solution of fuel and ethanol 30% at 0.209 (% vol). (2) The lowest Hydrocarbon emissions<br />level was found in the heating of pipe with 10 mm fins distance in the solution of gasoline and ethanol 20% at<br />294.33 (ppm vol). (3)The heating of copper pipe with 20 mm spacing between the fins and the variation of<br />ethanol 30% is the best result of the entire treatments with CO gas at 0.209 (% vol) and HC at 310.00 (ppm vol).<br />(4) The heating in fuel mixture gasoline 75% and ethanol 25% through radiator upper tank with gap between<br />fins 10 mm is the best treatment than from other treatment in testing use with CO t 0,31 (%vol) dan HC at 340<br />(ppm vol).</p>

2018 ◽  
Vol 3 (2) ◽  
pp. 130-137
Author(s):  
Agus Fatkhuniam ◽  
M. Burhan Rubai Wijaya ◽  
Angga Septiyanto

This research aims to determine the performance increase of using racing air filters compared to standard air filters on a four-stroke vehicle. Performance being tested are power, torque and exhaust emissions. This is an experimental research conducted on a Honda Supra X 125 PGM-FI motorcycle. Data were analyzed using descriptive statistics and the collection is presented in the form of tables, graphs, and calculated averages. Results show that racing air filter 1 have a power of 7.35 HP (2.3% increase) and racing air filter 2 have a power of 7,3 HP (1.6% increase). The torque tests shows that Racing filter 1 has a torque of 10,588 Nm and the racing air filter 2 has a torque of 10,585 Nm, while standard filter has only 10.42 Nm. CO gas emissions resulting from the use of racing air filters 1 increased by 28% from standard air filters and for racing air filter 2 CO 2 emissions decreased by 6%. At the exhaust emissions of HC, racing air filters 1 emissions increased by 16% and racing air filter 2 decreased by 9%. Penelitian ini bertujan untuk membuktikan adanya perbedaan filter udara racing dengan filter udara standar terhadap performa kendaraan empat langkah, berupa daya, torsi dan emisi gas buang. Penelitian dilakukan secara eksperimen pada sepeda motor Supra X 125 PGM-FI. Analisis data menggunakan statistik deskriptif dengan penyajian data berupa tabel, grafik. Hasil penelitian menunjukkan bhawa perhitungan rata-rata. sebesar 7,35 Hp dengan meningkat 2,3% dan filter udara racing 2 meningkat sebesar 1,6 % menjadi 7,3 HP dibandingkan dari hasil filter udara standar sebesar 7,18 Hp, torsi filter udara racing 1 meningkat sebesar 1,6% menjadi 10,588 N.m dan filter udara racing 2 meningkat 1,5% menjadi 10,585 N.m dibandingkan hasil dari penggunaan filter standar sebesar 10,42 N.m. Emisi gas buang CO yang dihasilkan dari penggunaan filter udara racing 1 meningkatan 28% dari filter udara standar 0,803% menjadi 1,034% dan CO filter udara racing 2  ada penurunan 6% menjadi 0,754% dari CO filter udara standar 0,803%, dengan selisih perbedaan 0,231% dan 0,049% dari penggunaan filter udara standar. Pada emisi gas buang HC filter udara racing 1 terdapat peningkatan sebesar 16% menjadi 142 ppm dari hasil filter standar dan penurunan 9% dari penggunaan filter udara racing 2 sebesar 111 ppm dibandingkan HC yang dihasilkan filter standar sebesar 122 ppm, dengan selisih 20 ppm dan 11 ppm dari HC yang dihasilkan filter udara standar.


2019 ◽  
Vol 2 (01) ◽  
pp. 27-30
Author(s):  
SUGENG PRAMUDIBYO PRAMUDIBYO

The high population in Indonesia has an impact on increasing the mobility of the population in work and activities, which is followed by the increased transportation facilities needed by the community. One of the negative effects of the increasing number of vehicles is the danger of exhaust emissions. One way to minimize the danger of exhaust gases is to regulate the mixture of air and fuel on the gasoline engine. In Yamaha injection motors there is a CO setting technology, this technology will have an impact on fuel use. The standard CO on a Yamaha motorbike is 0 and can be added or reduced (±) until it reaches 30. Increasing CO one strip will cause the fuel sprayed by the injector to be reduced by 0.05 cc. Examination of exhaust gas emissions is carried out using the Qrotect 401 Engine Gas Analyzer which is capable of measuring CO2, O2, CO, HC and Lamda. Based on the test results show that the lowest exhaust emissions are produced by the vehicle at 2500 rpm and in CO-30 mode settings, namely CO gas emissions of 0.49%. So we can conclude that the lowest exhaust gas emissions are produced by the vehicle at rpm 2500 with CO-30 settings. In addition to co mode settings, variations in engine rpm also affect exhaust emissions. In different modes but with different rpm the results will also be different. In the CO 10 mode setting with rpm 1400 CO gas emission is produced at 2.102 while at 2500 rpm is produced 0.821. So at rpm 2500 produced exhaust emissions lower than rpm 1400. There is a significant effect between CO mode settings and engine rpm on motorcycle exhaust emissions.


2020 ◽  
Vol 7 (2) ◽  
pp. 209-212
Author(s):  
Jusnita

Kendaraan bermotor di Indonesia yang menjadi sumber emisi gas buang terbesar adalah sepeda motor. Ini merupakan kurangnya perhatian pengguna kendaraan bermotor dengan perbandingan kompresi mesin kendaraan yang tinggi cenderung memilih mengisi bahan bakar sepeda motornya dengan premium yang harganya lebih murah namun memiliki angka oktan yang rendah. Hal ini tentu akan menimbulkan masalah terhadap pembakaran yang tidak sempurna. Efek yang ditimbulkan adalah menyebabkan meningkatnya polutan pencemaran udara. Untuk mengatasi permasalahan diatas adalah dengan cara menggunakan Hydrocarbon Crack System (HCS), HCS bekerja untuk menyempurnakan proses pembakaran, sehingga dapat menurunkan kadar emisi gas buang kendaraan. Tujuan dari penelitian ini melihat pengaruh penggunaan Hydrocarbon Crack System (HCS) terhadap performa dan kandungan emisi gas buang yang dihasilkan. Berdasarkan hasil penelitian diperoleh bahwa penggunaan HCS pada sepeda motor Honda Supra X 125 dapat menurunkan emisi gas CO sebesar 40 %. Untuk emisi gas HC penggunaan HCS dapat menurunkan emisi gas HC sebesar 37%,sedangkan untuk emisi gas buang CO2 penggunaan HCS dapat meningkatkan emisi gas CO2 sebesar 12.98%.   Motor vehicles in Indonesia which are the largest source of exhaust emissions are motorbikes. This is the lack of attention of motorized vehicle users with high engine compression ratios, which tend to choose to refuel their motorbikes with premium which is cheaper but has a low octane number. This of course will cause problems with incomplete combustion. The resulting effect is to increase air pollutants. To overcome the above problems is by using the Hydrocarbon Crack System (HCS), HCS works to improve the combustion process, so that it can reduce the levels of vehicle exhaust emissions. The purpose of this study is to see the effect of the use of the Hydrocarbon Crack System (HCS) on the performance and content of the resulting exhaust emissions. Based on the research results, it was found that the use of HCS on a Honda Supra X 125 motorcycle could reduce CO gas emissions by 40%. For HC gas emissions, the use of HCS can reduce HC gas emissions by 37%, while for CO2 exhaust emissions, the use of HCS can increase CO2 emissions by 12.98%.


2012 ◽  
Vol 602-604 ◽  
pp. 1054-1058
Author(s):  
Karoon Fangsuwannarak ◽  
Kittichai Triratanasirichai

This study presents the use of bio-solution and nano-Titanium dioxide (TiO2) based additives for dosing in diesel and palm biodiesel (B5). The aim of this work is to enhance the performance of a direct injection (DI) engine and to simultaneously reduce the exhaust gas emissions. The basic properties such as kinematic viscosity, specific gravity, flash point, fire point, and carbon residue of the test fuels were measured and accepted in ASTM standards. Overall, diesel-bio-solution and diesel-TiO2 blends show the lower break specific fuel consumption by 13% and 10%, respectively and the lower exhaust gas emissions, as compared with diesel. B5-bio-solution blend provides the break specific fuel consumption decreased by 1.68%, while exhaust emissions were effectively increased in comparison with B5 fuel.


Author(s):  
E. Movahednejad ◽  
F. Ommi ◽  
M. Hosseinalipour ◽  
O. Samimi

For spark ignition engines, the fuel-air mixture preparation process is known to have a significant influence on engine performance and exhaust emissions. In this paper, an experimental study is made to characterize the spray characteristics of an injector with multi-disc nozzle used in the engine. The distributions of the droplet size and velocity and volume flux were characterized by a PDA system. Also a model of a 4 cylinder multi-point fuel injection engine was prepared using a fluid dynamics code. By this code one-dimensional, unsteady, multiphase flow in the intake port has been modeled to study the mixture formation process in the intake port. Also, one-dimensional air flow and wall fuel film flow and a two-dimensional fuel droplet flow have been modeled, including the effects of in-cylinder mixture back flows into the port. The accuracy of model was verified using experimental results of the engine testing showing good agreement between the model and the real engine. As a result, predictions are obtained that provide a detailed picture of the air-fuel mixture properties along the intake port. A comparison was made on engine performance and exhaust emission in different fuel injection timing for 2600 rpm and different loads. According to the present investigation, optimum injection timing for different engine operating conditions was found.


Tibuana ◽  
2021 ◽  
Vol 4 (01) ◽  
pp. 49-54
Author(s):  
Syamsul Arifin

The experience is observed for fourstrokes petrol engine for revolution 1000 rpm - 4000 rpm, with used of power air screw oncarburator and cyclone on outlet intakemanifold. Air – fuel mixture have passed ofcyclone to combustion chamber to becometurbulent flow and homogen. Then theexperience of step by step used power screwand cyclone. The first investigation on standarcondition, the second put of power air screwon carburator, the third put of cyclone on outletintake manifold, the fourth put of combinationof power air screw and cyclone. It wasobserving for increasing air – fuel equivalenceratio and reduction of exhaust COconcentration. Actually, used combination ofpower air screw and cyclone are resulted ofcarbon monoxide concentration drop ofenough significant for 2500 rpm and 4000 rpm,respectively 51% and 67%. The carbonmonoxide least concentration is 1,14% oncondition 4000 rpm.


Author(s):  
Adriansyah Prasetiyo ◽  
Rifdarmon Rifdarmon

This study aims to determine the effect of the use of variations of spark plugs on power, torque and exhaust emissions produced by Yamaha Vixion motorcycles in 2015. This study uses an experimental method with three variations of spark plugs. The results of research on nickel spark plugs obtained a maximum power of 12.7 Kw, a maximum torque of 11.14 N.m and exhaust gas emissions with CO levels of 4.24%, CO2 9.03%, HC 1214ppm. In platinum spark plugs there is an increase in power of 1.55%, torque of 0.89% torque and exhaust emissions with levels of 5.18% CO, 9.2% CO2, HC 1134ppm. Furthermore, iridium spark plugs have an increase in power of 4.5%, a torque of 3.47% and exhaust gas emissions with CO levels of 5.27%, CO2 9.6%, HC 1293ppm. That is, there is an influence from the use of variations of spark plugs on power, torque and exhaust emissions on Yamaha Vixion motorcycles in 2015. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan variasi busi terhadap daya, torsi dan emisi gas buang yang dihasilkan oleh sepeda motor Yamaha Vixion tahun 2015. Penelitian ini menggunakan metode eksperimen dengan tiga variasi busi. Hasil penelitian pada busi nikel didapatkan daya maksimal sebesar 12,7Kw, torsi maksimal sebesar 11,14 N.m dan emisi gas buang dengan kadar CO 4,24%, CO2 9,03%, HC 1214ppm. Pada busi platinum terdapat peningkatan daya sebesar 1,55%, torsi torsi 0,89% dan emisi gas buang dengan kadar CO 5,18%, CO2 9,2%, HC 1134ppm. Selanjutnya, pada busi iridium terdapat peningkatan daya sebesar 4,5%, torsi sebesar 3,47% dan emisi gas buang dengan kadar CO 5,27%, CO2 9,6%, HC 1293ppm. Artinya, terdapat pengaruh dari penggunaan variasi busi terhadap daya, torsi dan emisi gas buang pada sepeda motor Yamaha Vixion tahun 2015.


Author(s):  
Pranas Baltrenas ◽  
Petras Vaitiekūnas ◽  
Irena Mincevič

The investigation carried out has revealed that in Vievis settlement and near the highway Vilnius ‐ Kaunas the highest concentrations of pollutants are emitted during morning and afternoon rush‐hours when motor transport traffic is the heaviest. Extremely high amounts of emitted aerosol particles were recorded 1–2 m away from the driving part, and 4–6 m away the amounts of aerosol particles sharply go down. CO gas concentrations caused by passing motor transport were also analysed. It has been set that the concentrations of CO and aerosol particles depend directly on motor transport traffic intensity. CO concentration goes evenly down receding from the driving part. In most cases maximum permitted concentration of CO was recorded.


Author(s):  
Apip Amrullah

Currently the use of motor gasoline from year to year increase. In 2010 the number of vehicles in Indonesia about 26,706,705 vehicles, in 2011 amounted to 30,769,093 vehicles and 2012 amounted to 38,156,278 vehicles. This resulted in the consumption of petroleum fuels and exhaust emissions in motor vehicles is increasing. To overcome these problems, conducted research on synthetic fuel which is one of the alternative fuel sources. This research was conducted at gasoline engine. Variations in fuel mixture gasoline and synthetic fuel. This research will be able to generate and determine the effect of fuel mixture gasoline-synthetic fuel on levels of exhaust emissions, to determine the effect of fuel mixture gasoline-synthetic fuel for engine performance. Based on the analysis of performance and exhaust emissions test on a gasoline engine, for most engine performance is good and efficient set at first to mix synthetic fuel.


POROS ◽  
2018 ◽  
Vol 16 (1) ◽  
Author(s):  
Winny Andalia Andalia

The use of biodiesel in boilers has great benefits because it reduces exhaust emissions. The purpose of this study is to test the quality of solar and biosolar raw materials as fuel from the boiler, analyze the concentration of pollutant gases (NOx, CO2, SO2) from the combustion of biosolar and diesel oil experimentally. The combustion system in the boiler tends to be simpler than compression ignition as is done with diesel engines. This research was conducted experimentally in a fire tube boiler, with a heat input rate of 60,000 kCal / hour and a pressure of 3 bar using biodiesel made from CPO (crude palm oil) as fuel. The mixture varies at 0, 5, 10, 15, 20 and 25% biodiesel in a mixture with biosolar diesel (B0, B5, B10, B15, B20 and B25). This research was carried out experimentally by testing the exhaust gas emissions generated from the stack gas stack which is expected to produce low exhaust emissions and are environmentally friendly. The results show that the use of biodiesel reduces gas emissions by increasing the value of biodiesel in the mixture. The results showed that the lowest gas emissions were around 4.142% (NOx); 12.50% (SO2) and 7.9% (CO2) contained in a mixture of 25% biodiesel in fuel (B25).


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