PENGARUH INTAKE DAN EXHAUST LOBE LIFT SERTA CELAH KATUP TERHADAP KONSUMSI BAHAN BAKAR

2020 ◽  
Vol 1 (2) ◽  
pp. 44-49
Author(s):  
Musa Wahyu Pangeran
Keyword(s):  
Fuel Consumption ◽  
Research Method ◽  
Fossil Fuels ◽  
Positive Impact ◽  
Experimental Methods ◽  
Fuel Use ◽  
Bottom Dead Center

Abstrak: Sepeda motor membutuhkan bahan bakar fosil dan saat ini cadangannya semakin berkurang serta tidak dapat diperbarui. Dengan kondisi saat ini, perlu untuk mengontrol penggunaan bahan bakar pada sepeda motor. Pengaturan intake lobe lift, exhaust lobe lift dan celah katup berdampak positif pada konsumsi bahan bakar. Tujuan dari penelitian ini adalah untuk menguji pengaruh pengaturan intake lobe lift, exhaust lobe lift dan celah katup terhadap konsumsi bahan bakar pada sepeda motor Honda Supra 125. Metode penelitian menggunakan metode eksperimental. Hasil penelitian menunjukkan bahwa ada pengaruh variasi intake lobe lift, exhaust lobe lift dan celah katup terhadap konsumsi bahan bakar. Konsumsi bahan bakar terlama (irit) yaitu pada modifikasi camshaft intake lobe lift 250 sebelum Titik Mati Atas (TMA) dan exhaust lobe lift 450 setelah Titik Mati Bawah (TMB), celah katup masuk (in) adalah 0,15 mm dan keluar (ex) adalah 0,15 mm.   Abstract: Motorcycles need fossil fuels and currently reserves were decreasing and cannot be renewed. Under current conditions, it is necessary to control fuel use on motorbikes. The intake lobe lift, exhaust lobe lift and valve gap settings have a positive impact on fuel consumption. The purpose of this study was to examine the effect of regulating intake lobe lifts, exhaust lobe lifts and valve fissures on fuel consumption on Honda Supra 125 motorcycles. The research method used experimental methods. The results showed that there was an effect of variations in intake lobe lift, exhaust lobe lift and valve gap on fuel consumption. Economical fuel consumption is the modification of the intake lobe lift camshaft 250 before Top Dead Center (TDC) and exhaust lobe lift 450 after Bottom Dead Center (BDC), valve gap in 0.15 mm and ex 0.15 mm.

scholarly journals Pengaruh Variasi Intake Lobe Lift, Exhaust Lobe Lift Dan Celah Katup Terhadap Konsumsi Bahan Bakar Pada Sepeda Motor

2020 ◽  
Vol 3 (01) ◽  
pp. 23-26
Author(s):  
Musa Wahyu Pangeran ◽  
Endry Meydiant ◽  
M. Agung Pribadi
Keyword(s):  
Experimental Method ◽  
Fuel Consumption ◽  
Research Method ◽  
Fossil Fuel ◽  
Positive Impact ◽  
Fuel Oil

Motorbikes that are very much operated every day need fuel oil which is a fossil fuel that has been depleted and cannot be renewed. With the current conditions, it is necessary to control fuel consumption on a motorcycle. Setting the intake lobe lift, the exhaust lobe lift and valve gap have a positive impact on fuel consumption. There has been a lot of research about setting the intake lobe lift, the exhaust lobe lift and valve gap. The number of conventional motorcycle vehicles that are still operating requires special arrangements and deeper studies to be able to be economical in fuel consumption. The objectives of this study are: (1) to identify the factors that cause high fuel consumption. The research method uses the experimental method. By using pertamax. . The results showed that: 1) modification 2 uses the longest fuel consumption, and 2) there are effects of variations in the intake lobe lift and exhaust lobe lift on fuel consumption, 3) there is an effect of adjusting valve gap variations on fuel consumption, 4) there are the effect of variations in the intake lobe lift and exhaust lobe lift and adjustment of valve gap variations on fuel consumption.

scholarly journals Analysis of the use bioethanol-pertalite mixtures in motorcycles on fuel consumption efficiency

2021 ◽  
Vol 926 (1) ◽  
pp. 012049
Author(s):  
B S Wibowo ◽  
F I P Sari ◽  
Y Setiawan ◽  
P Prayitnoadi ◽  
M D Adha
Keyword(s):  
Fuel Consumption ◽  
Research Method ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Engine Speed ◽  
Fossil Fuel ◽  
Consumption Data ◽  
The World ◽  
The Right ◽  
Consumption Efficiency

Abstract Indonesia is one of the countries in the world that depend on fossil fuels. Fossil fuels are non-renewable fuels. The increasing use of fossil fuels causes fossil fuel reserves to dwindle, there is a need for alternative fuels. the use of alternative fuels is the right solution, alternative fuels that have been developed include bioethanol. The research method used in this study used pure pertalite data as a comparison, then continued with a mixture of bioethanol and pertalite with a variety of bioethanol and pertalite mixtures used were 10ml bioethanol 90ml pertalite, 20ml bioethanol 80ml pertalite, and 30ml bioethanol 70ml pertalite. variations of engine speed used 1000, 2000, and 3000 RPM. Then the fuel consumption data analysis was carried out on the engine. The results of the research conducted will get results for RPM 1000 with 10 ml bioethanol content, there will be less fuel consumption than pure pertalite as well as 20 ml. In the 3000 RPM Round with 10 ml bioethanol content, the fuel consumption is more efficient than pure pertalite, the same thing with bioethanol with 20 ml levels, the fuel consumption is less than pertalite.

scholarly journals TEG Design for Waste Heat Recovery at an Aviation Jet Engine Nozzle

2018 ◽  
Vol 8 (12) ◽  
pp. 2637 ◽  
Author(s):  
Pawel Ziolkowski ◽  
Knud Zabrocki ◽  
Eckhard Müller
Keyword(s):  
Fuel Consumption ◽  
Power Output ◽  
Waste Heat ◽  
Positive Impact ◽  
Element Model ◽  
System Level ◽  
Specific Power ◽  
Transfer Coefficients ◽  
Te Modules ◽  
Te Material

Finite element model (FEM)-based simulations are conducted for the application of a thermoelectric generator (TEG) between the hot core stream and the cool bypass flow at the nozzle of an aviation turbofan engine. This work reports the resulting requirements on the TEG design with respect to applied thermoelectric (TE) element lengths and filling factors (F) of the TE modules in order to achieve a positive effect on the specific fuel consumption. Assuming a virtual optimized TE material and varying the convective heat transfer coefficients (HTC) between the nozzle surfaces and the gas flows, this work reports the achievable power output. System-level requirement on the gravimetric power density (>100 Wkg−1) can only be met for F ≤ 21%. When extrapolating TEG coverage to the full nozzle surface, the power output reaches 1.65 kW per engine. The assessment of further potential for power generation is demonstrated by a parametric study on F, convective HTC, and materials performance. This study confirms a feasible design range for TEG installation on the aircraft nozzle with a positive impact on the fuel consumption. This application translates into a reduction of operational costs, allowing for an economically efficient TEG-installation with respect to the cost-specific power output of modern thermoelectric materials.

Investigation of Hybrid Fuel Cell (HFC) Technology Applications on the Future Passenger Railroad Transportation

Joint Rail ◽  
2003 ◽  
Author(s):  
H. Moghbelli ◽  
Y. Gao ◽  
R. Langari ◽  
M. Ehsani
Keyword(s):  
Fuel Consumption ◽  
Fuel Economy ◽  
High Speed ◽  
High Efficiency ◽  
New Technologies ◽  
Positive Impact ◽  
Weak Link ◽  
Transportation System ◽  
Production Costs ◽  
Passenger Railroad

Due to the consideration of fragile security, and longer check-in times and inconveniences due to increased air travel security examination since September 11th 2001, more and more people have turn to ground transportation. Unfortunately, the inefficient, environment-unfriendly and unsafe passenger cars and buses are the only choices available for middle distance trips. Development of high efficiency, clean and high speed railroad passenger transportation system has become more necessary to overcome this weak link. In this paper, the applicability of hybrid drive train technologies for middle-distance passenger train locomotives will be investigated. A systematic design of the diesel based hybrid locomotive helps to increase efficiency, improve fuel economy, reduce emissions and also reduce mass production costs. Furthermore, professional management and maintenance of railroad train locomotives make such new technologies more practical than for road vehicles. The success of such transportation system will have a great positive impact on our social activities, quality of life, energy supply, environment and economy. A diesel based hybrid electric locomotive (HEL) with batteries or an ultracapacitor is an option to reduce fuel consumption and emissions and provide better performance and fuel economy. The reduced fuel consumption helps reduce the amount of pollutants released. Engineering estimation indicate that emissions will be reduced by 70% and fuel efficiency will be increased by at least 30% in hybrid locomotives.

scholarly journals Impact of Business Plans for the Development of MSMEs

2019 ◽  
Vol 2 (2) ◽  
pp. 375-379
Author(s):  
Irwan Sugiarto
Keyword(s):  
Marketing Strategy ◽  
Research Method ◽  
Qualitative Method ◽  
Positive Impact ◽  
Business Planning ◽  
Business Plans ◽  
Descriptive Approach ◽  
The Government ◽  
The Impact

This study aims to determine the impact of business planning for the development of MSMEs. The research method uses is a qualitative method with a descriptive and explorative descriptive approach. From the results of the research conducted, the results show that proper business planning and the application of a good marketing strategy have a positive impact on the sustainability of MSME activities. In addition, the quality of production that has a competitive advantage is also one of the driving factors. For the development of MSMEs, there are several obstacles faced, especially related to capital and guidance from the local government. With the development of MSMEs, it is expected to improve people's welfare, including helping the government in reducing unemployment.

scholarly journals Government Policy in Overcoming Religious Extremism in Indonesia: A Multidisciplinary Review between Public Administration and Psychology

2021 ◽  
Vol 8 (4) ◽  
pp. 423-433
Author(s):  
Dana R. Buana ◽  
Masayu N. Juwita
Keyword(s):  
Public Administration ◽  
Ethnic Groups ◽  
Government Policy ◽  
Research Method ◽  
Negative Impact ◽  
Positive Impact ◽  
Literature Study ◽  
Religious Extremism ◽  
The Government ◽  
The Right

The development of religious extremism in Indonesia continues to increase every year so that serious attention is needed by the government to deal with religious extremism in Indonesia. Indonesia is an archipelagic country where there are various ethnic groups and religions that coexist. However, the development of religious extremism sometimes becomes a serious problem for the Indonesian people because it can have a negative impact and damage the unity between nations and religions. This research uses literature study. This research method is carried out by reviewing various literatures, both books, newspapers, survey reports, academic journals related to religious extremism in Indonesia. The results show that not all religious extremism has an impact on the emergence of terrorism, but the government still must make the right policies in handling religious extremism that can cause division and affect peoples welfare. The policies that have been made by the government are considered appropriate and based on the laws that have been set by the government so that they can have a positive impact in maintaining the unity and integrity of the Indonesian nation.

scholarly journals Dynamics of the distribution mechanism with rocking tappet with roll

2019 ◽  
Vol 10 (3) ◽  
pp. 951
Author(s):  
Florian Ion Tiberiu Petrescu ◽  
Relly Victoria Virgil Petrescu
Keyword(s):  
Fuel Consumption ◽  
Fossil Fuels ◽  
Heat Engine ◽  
Internal Combustion ◽  
Original Method ◽  
Dynamic Coefficient ◽  
Electric Motors ◽  
Great Loss ◽  
Dynamic Synthesis ◽  
Heat Engines

In this paper the authors present shortly an original method to make the dynamic synthesis of a mechanism with rotary cam and rotated tappet with roll, used with priority at the distribution mechanisms from the heat engines with internal combustion. This type of distribution can improve the changes of gases, and may decrease significantly the level of vibration, noises, and emissions. As long as we produce electricity and heat by burning fossil fuels is pointless to try to replace all thermal engines with electric motors, as loss of energy and pollution will be even larger. However, it is well to continuously improve the thermal engines, to reduce thus fuel consumption. At the heat engine with internal combustion a great loss of power is realized and by the distribution mechanism, reason for that we must try to improve the functionality of this mechanism. The dynamic synthesis of this type of distribution mechanism can be made shortly, by the Cartesian coordinates, but to determine these coordinates we need and some trigonometric parameters of the mechanism. Dynamics and forces of this distribution mechanism are presented as well. One introduce the dynamic coefficient D.

scholarly journals Control of Exhaust Emissions Using Piston Coating on Two-StrokeSI Engines with Gasoline Blends

2021 ◽  
Vol 8 (1) ◽  
pp. H16-H20
Author(s):  
A.V.N.S. Kiran ◽  
B. Ramanjaneyulu ◽  
M. Lokanath M. ◽  
S. Nagendra ◽  
G.E. Balachander
Keyword(s):  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Internal Combustion Engines ◽  
Fossil Fuels ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Specific Fuel Consumption ◽  
Thermal Barrier ◽  
Piston Crown ◽  
Barrier Coating

An increase in fuel utilization to internal combustion engines, variation in gasoline price, reduction of the fossil fuels and natural resources, needs less carbon content in fuel to find an alternative fuel. This paper presents a comparative study of various gasoline blends in a single-cylinder two-stroke SI engine. The present experimental investigation with gasoline blends of butanol and propanol and magnesium partially stabilized zirconium (Mg-PSZ) as thermal barrier coating on piston crown of 100 µm. The samples of gasoline blends were blended with petrol in 1:4 ratios: 20 % of butanol and 80 % of gasoline; 20 % of propanol and 80 % of gasoline. In this work, the following engine characteristics of brake thermal efficiency (BTH), specific fuel consumption (SFC), HC, and CO emissions were measured for both coated and non-coated pistons. Experiments have shown that the thermal efficiency is increased by 2.2 % at P20. The specific fuel consumption is minimized by 2.2 % at P20. Exhaust emissions are minimized by 2.0 % of HC and 2.4 % of CO at B20. The results strongly indicate that the combination of thermal barrier coatings and gasoline blends can improve engine performance and reduce exhaust emissions.

scholarly journals PERSEPSI SISWA DALAM STUDI PENGARUH DARING LEARNING TERHADAP MINAT BELAJAR IPA

2019 ◽  
Vol 1 (2) ◽  
pp. 30-38
Author(s):  
Sobron A.N, Bayu, Rani, Meidawati
Keyword(s):  
Elementary School ◽  
Learning Process ◽  
Research Method ◽  
Experimental Methods ◽  
Independent Learning ◽  
Learning Science ◽  
Learning Method ◽  
Effective Learning ◽  
Quasi Experimental ◽  
Collaborative Activities

Daring Learning provides effective learning methods, such as practicing with the existence of relevant feedback, combining collaborative activities with independent learning. Learning in the classroom with a combination of online learning gives students more interest. This study aims to develop a study of the influence of Daring Learning on the interest in learning science of grade VI students at third Elementary School of Karanglo Tawangmangu. This research method consist 26 students using quasi-experimental methods (Quasi Experiments), the population divided into 2 classes including class VI A with 13 students and class VI B with 13 students. Sampling taken in class VI A as the experimental class and class VI B as the control class. The results showed that the learning process using the Daring Learning method especially in science at third Elementary School of Karanglo Tawangmangu had used interesting media, concluding that Daring Learning-based interactive learning media, students were increasingly enthusiastic and not boring especially in learning science using the Daring Learning method. Based on the research stated on the questionnaire responses of students with Daring Learning, it shows that the cateralization is agrees to allow Daring Learning method in third Elementary School of Karanglo Tawangmangu.

scholarly journals ANALISIS STRATEGI PEMBELAJARAN IPA DALAM BUKU TEMATIK KURIKULUM 2013 KELAS IV SD

2019 ◽  
Vol 8 (1) ◽  
pp. 125-150
Author(s):  
Alma Pratiwi Husain
Keyword(s):  
Experiential Learning ◽  
Learning Strategies ◽  
Direct Contact ◽  
Research Method ◽  
Experimental Methods ◽  
Research Approach ◽  
Library Research ◽  
K 13 ◽  
Real Picture ◽  
Class Iv

This article aims to find out the relevant strategies for use in science lessons, thematic books K-13 class IV theme 2 in MI / SD. The research method used is the library research approach. Data collection is carried out by examining various journals, books and documents both printed and electronic which are relevant to research studies. The results showed that the relevant learning strategies used were experiential learning strategies with experimental methods and field observations. This strategy provides a real picture because students are in direct contact with objects and nature during the learning process. The benefits of this study provide information related to relevant learning strategies for science lessons, thematic books K-13 class IV theme 2 in MI / SD.

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