Results Of Temperature Controlled Autoignition Combustion Over The Hydrocarbons Emissions And Fuel Consumption At Light Loads In A 50 cm3 Two-Stroke Engine

2001 ◽  
Author(s):  
Carmen Barrios Sánchez ◽  
Jesús Casanova Kindelan
Keyword(s):  
Fuel Consumption ◽  
Temperature Controlled ◽  
Controlled Autoignition ◽  
Stroke Engine

Automated Design of a Turbocharged, Fueled, Four-Stroke Engine for Minimum Fuel Consumption

1988 ◽  
Author(s):  
J. K. Woodard ◽  
G. E. Johnson ◽  
R. L. Lott
Keyword(s):  
Fuel Consumption ◽  
Fluid Model ◽  
Programming Algorithm ◽  
Intake Manifold ◽  
Optimization Strategy ◽  
Simulation Code ◽  
Operating Variables ◽  
Chamber Volume ◽  
Starting Point ◽  
Stroke Engine

Abstract The design of a turbocharged, gasoline fueled, four-stroke engine is considered with the goal of selecting design and operating variables to minimize fuel consumption. The development of the engine simulation code and the effect of model assumptions on the results are presented. The optimization includes constraints on detonation, exhaust emissions, and torque. Variables are bounded to assure the validity of the simulation. A number of observations about the interaction between the thermo-fluid model and the nonlinear programming algorithm are made and general strategies to enhance the optimization under such circumstances are discussed. The method is illustrated by exploring the design of a turbocharged Buick V-6 engine on an IBM PC/AT personal computer. Stock design variables, and operating variables that provided a design away from the constraints imposed by torque, emission, and detonation were chosen as the starting point for the optimization. Application of the optimization strategy resulted in an 18 percent reduction in predicted fuel consumption at 50 miles per hour. Significant specific recommendations included a reduction in combustion chamber volume, an increase in intake manifold pressure, an increase in intake duration, a decrease in exhaust duration, and relatively small changes in valve geometry. The paper clearly demonstrates that it is feasible to do relatively sophisticated engineering design and optimization on personal computers, and it sets the stage for further work in this area.

ANALISA PERFORMA DAN KONSUMSI BAHAN BAKAR PADA MESIN 4-TAK 113CC MENGGUNAKAN BAHAN BAKAR CAMPURAN PREMIUM DAN ETHANOL

ROTOR ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 49
Author(s):  
Muhamad Hafidz Firdaus Priatama ◽  
Imron Rosyadi ◽  
Yusvardi Yusuf
Keyword(s):  
Fuel Consumption ◽  
Engine Speed ◽  
Fuel Mixture ◽  
Combustion System ◽  
Research Octane Number ◽  
A Value ◽  
The Difference ◽  
Brake Dynamometer ◽  
Stroke Engine ◽  
Research Show

The use of a fuel mixture of gasoline and ethanol can reduce the PM2.5 (Particulate Matter) value in the air by 0.3-0.4 µg m-3. This research aims to see the performance of a 4-stroke engine 113cc in standard conditions using a mixture of premium and ethanol. This research learns 5 types of mixture, E0, E10, E15, E20, and E25. The fuels was tested at 5 engine speed 4000, 4500, 5000, 5500, and 6000 rpm, at prony brake dynamometer to measuring performance, fuel consumption and Specific Fuel Consumption (SFC). The results of research show that the highest torque and power is the E15 mixture, that is 8.90 Nm at 5500 rpm and the power obtained is 5.529 kW at 6000 rpm. Meanwhile, the lowest fuel consumption value is found in the E10 with a value of 169.78 gr/hour at 4500 rpm. The lowest SFC value of all fuels is the E15 at 5000 rpm on 27.565 gr/kW.h. This is the lowest of any other fuel, because the  Research Octane Number value is following the compression ratio of the engine, so there is no delay in ignition symptoms that occur during the combustion system. The viscosity value also contributes to the difference in data.

scholarly journals The Effect of Turbo Cyclone Installation on 4 Stroke Motor Cycle on Fuel Consumption and Exhaust Emissions

2021 ◽  
Vol 3 (2) ◽  
pp. 69-76
Author(s):  
Syahrul Huda ◽  
Wawan Purwanto ◽  
Budi Utomo Wisesa
Keyword(s):  
Data Analysis ◽  
Fuel Consumption ◽  
Research Methods ◽  
Quantitative Study ◽  
Experimental Research ◽  
Gasoline Engine ◽  
Exhaust Emissions ◽  
Co2 Levels ◽  
The Mean ◽  
Stroke Engine

This research examines the effect of installing a Turbo Cyclone on a 4 stroke gasoline engine on fuel consumption and exhaust emissions. This research is a quantitative study using experimental research methods. The 4 stroke petrol engine used is the Yamaha Jupiter MX 135 cc. The data were processed in several stages of analysis using the mean formula, fuel consumption, the percentage formula, and comparing the results of data analysis from each treatment. From the results of data analysis, it was found that the installation of the Turbo Cyclone had an effect on fuel consumption and exhaust emissions from the 4 stroke engine. The best effect is obtained from the installation of the Turbo Cyclone after the carburetor, fuel consumption shows a decrease of up to 8%, exhaust emissions show a decrease in HC levels by 9% and an increase in CO2 levels by 1%.  Penelitian ini mambahas pengaruh pemasangan Turbo Cyclone pada mesin bensin 4 Tak terhadap konsumsi bahan bakar dan emisi gas buang. Penelitian ini  merupakan penelitian kuantitatif dengan metode penelitian eksperimen. Mesin bensin 4 Tak yang digunakan adalah Yamaha Jupiter MX 135 cc. Data diolah dengan beberapa tahapan analisis menggunakan rumus  mean, konsumsi bahan bakar,  rumus persentase, dan membandingkan hasil analisis data dari masing-masing perlakuan. Dari hasil analisis data didapatkan adanya pengaruh dari pemasangan Turbo Cyclone terhadap konsumsi bahan bakar dan emisi gas buang dari mesin 4 Tak tersebut. Pengaruh yang paling baik didapat dari pemasangan Turbo Cyclone setelah karburator, konsumsi bahan bakar menunjukkan penurunan mencapai 8%, emisi gas buang menunjukkan penurunaan kadar HC sebesar 9% dan peningkatan kadar CO2 sebesar 1%.

scholarly journals Kaji Eksperimental Perbandingan Performa Engine4 Langkah MenggunakanBahan Bakar Hasil Pirolisis Sampah Plastik dan Premium

Jurnal METTEK ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 76
Author(s):  
Marfizal Marfizal ◽  
Sufiyanto Sufiyanto ◽  
Adriyan Adriyan
Keyword(s):  
Performance Measurement ◽  
Combustion Chamber ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Alternative Fuel ◽  
Post Treatment ◽  
Quadratic Functions ◽  
Exhaust Manifold ◽  
Stroke Engine ◽  
Horse Power

Penelitian yang dilakukan dalam tulisan ini terkait pengujian performa engine 4 langkah menggunakan bahan bakar hasil pirolisis sampah plastik (BBHPSP) dan dibandingkan dengan bahan bakar standar, yaitu premium. Pengujian dilakukan dengan menggunakan parameter tetap berupa volume bahan bakar (20 cc) dan kecepatan engine pada 4500 rpm yang dijaga konstan. Untuk memetakan performa engine 4 langkah menggunakan kedua jenis bahan bakar divariasikan besar pembebanan di poros keluaran engine. Berdasarkan pengukuran yang dilakukan diperoleh temperatur ruang bakar dan temperatur gas buang di exhaust manifoldmenggunakantermokopel. Hasil ini digunakan untuk menghitung performa engine 4 langkah yang menunjukkan bahwa performa engine 4 langkah dengan BBHPSP masih berada di bawah performa engine dengan premium. Pada penelitian ini diketahui bahwa kerja keluaran, indicated horse power (IHP), dan efisiensi termal engine dengan BBHPSP lebih rendah masing-masingnya dalam rentang 8,0 – 11,7%; 20,8 – 32,1%; dan 9,6 – 17,7% terhadap nilai premium. Akan tetapi, konsumsi bahan bakar spesifiknya lebih tinggi dibandingkan dengan premium yaitu sebesar32,4 – 53,1%. Selanjutnya, hubungan antara konsumsi bahan bakar spesifik dengan kerja keluaran, IHP, dan efisiensi termal memenuhi fungsi kudratik.Secara umum dapat disimpulkan bahwa BBHPSP dapat digunakan sebagai bahan bakar alternatif dengan perlunya proses perlakuan setelah pirolisis selesai dilakukan atau penambahan katalis dalam proses. This research was conducted to determine performance measurement of a four-stroke engine using fuel from pyrolisis procsess of plastic waste (BBHPSP) and gasoline as a standard fuel. The measurements were performed by keeping the fuel volume and engine rotation at constant value at 20 cc and 4500 rpm, respectively. To map the performance of four-stroke engine, it can be achieved by varying the magnitude of load at the output shaft. Temperature was also measured using thermocouple at combustion chamber and exhaust manifold. These measurements were applied to determine the performance of four-stroke engine. It gave the value of four-stroke engine using BBHPSP was lower than the use of gasoline. These values were 8,0 – 11,7%foroutput work, 20,8 – 32,1% for indicated horse power (IHP), and 9,6 – 17,7% for thermal efficiency comparing to the use of gasoline. Meanwhile, the specific fuel consumption of BBHPSP was greater than gasoline about 32,4 – 53,1%. Afterwards, the relation of specific fuel conumption with output works, IHP and thermal efficiency fulfilled the quadratic functions. To conclude, BBHPSP can be used as an alternative fuel for the four-stroke engine by considering a post-treatment or adding a catalyst when producing BBHPSP using pyrolisis proccess.

scholarly journals ANALYSIS OF HYDROCARBON TREATING SYSTEM TO THE EMISSION OFF SPARK-IGNITION FOUR-STROKE ENGINE

2016 ◽  
Vol 15 (1) ◽  
Author(s):  
Binyamin Binyamin ◽  
Subroto Subroto ◽  
Tri Tjahjono
Keyword(s):  
Carbon Monoxide ◽  
Fuel Consumption ◽  
Experimental Research ◽  
Flow Rate ◽  
Spark Ignition ◽  
The Other ◽  
Pollutant Concentration ◽  
Emission Level ◽  
Stroke Engine ◽  
Co Emission

The reduction of carbon monoxide (CO), unburnthydrocarbon (UHC) emission and fuel consumption on spark-ignition four-stroke engine is continuously attempted. The purposes from this research were to determine the effect of Hydrocarbon Treating System (HTS)  on levels of CO, UHC and fuel consumption. This is an experimental research. Its is conducted by comparing the exhaust pollutant concentration such as carbon monoxide, unburnt hydrocarbon and also fuel consumption between standard engine setting and Hydrocarbon Treating System applied. The research variable are HTS flow rate from Q1 = 0 cc/s (without HTS), Q2 = 1,5 cc/s, Q3 = 2 cc/s, Q4 = 2,5 cc/s, and Q5 = 33 cc/s. The research will be done in three conditions which are low, medium and high rotation. The result showed that Hydrocarbon Threating System decrease fuel consumption up to 19,43% with flow rate Q5 = 3 cc/s, but on the other hand it increase CO emission up to 80.84% with flow rate Q5 = 3 cc/s and UHC emission level up to 124.75% with flow rate Q5 = 3 cc/s from engine standart condition.

Brake Specific Fuel Consumption and Power Advantages for a Turbocharged Two-Stroke Direct-Injected Engine

2008 ◽  
Author(s):  
Andrew Findlay ◽  
Nicholas Harker ◽  
Karen R. Den Braven
Keyword(s):  
Fuel Consumption ◽  
High Performance ◽  
Direct Injection ◽  
Specific Fuel Consumption ◽  
Gasoline Direct Injection ◽  
Specific Power ◽  
Boost Pressure ◽  
Brake Specific Fuel Consumption ◽  
Specific Power Output ◽  
Stroke Engine

A turbocharged gasoline direct injection (GDI) two-stroke engine for use in snowmobile applications has been developed. Applying GDI to a two-stroke engine significantly reduces emissions of unburned hydrocarbons and improves fuel economy by reducing or eliminating the short-circuiting of fuel that occurs in conventional carbureted two-stroke engines. Performance is a high priority for recreational enthusiasts. Direct-injection also allows for further improvement in power and efficiency through the use of exhaust turbocharging. With the scavenging and fuel flows separated, turbocharging can efficiently increase the mass of air delivered to the engine. This increases specific power output and decreases specific fuel consumption. Results show that the brake specific fuel consumption (BSFC) of the turbocharged engine was improved over the entire engine operating range compared to the naturally aspirated engine. It was seen that a mild boost pressure of 5 psi could increase power by 40 brake-horsepower (bhp) at the peak engine speed and over 60 bhp at lower engine speeds. The results show that turbocharged direct injection is a viable option for high performance two-stroke engines.

scholarly journals PENGARUH VARIASI MAIN JET NOZZEL PADA SISTEM KARBURATOR TERHADAP UNJUK KERJA MESIN (Studi Kasus Beberapa Tingkat Oktan)

POROS ◽  
2017 ◽  
Vol 14 (2) ◽  
pp. 114
Author(s):  
Charlie Christian
Keyword(s):  
Performance Analysis ◽  
Energy Conversion ◽  
Fuel Consumption ◽  
Mechanical Engineering ◽  
Motor Fuel ◽  
Jet Fuel ◽  
Octane Rating ◽  
Jet Nozzle ◽  
Rotational Load ◽  
Stroke Engine

Abstract: This study discusses the effect of variations in the diameter of the main jet nozzle and three types of fuel with an octane rating of 88, 90 and 92 on the performance of the motor fuel. Performance analysis covering torque, power and specific fuel consumption (SFC). In order to determine the maximum performance that can be generated on any variation of the diameter of the main jet nozzles, and types of fuel. At the time of this experiment performed with a 4 stroke engine Honda GX-160, using hydro tool dynamometer and uses premium fuel. The data taken is the engine rotation, the force measured on the dynamometer and the time spent fuels. Tests conducted at the Laboratory of Energy Conversion Mechanical Engineering UNTAR Jakarta. Testing is done by means of rotational load mengvariasikan to gain strength in each round machine with a variety of major diameter nozzle jet fuel and octane. Variation of the engine rotation starts at minimal rotation until maximum. 

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