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Asian Journal Science and Engineering

ajse
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Published by CV. Creative Tugu Pena

ISSN : 29636752 EISSN : 29636752 DOI : http://dx.doi.org/10.51278/ajse.v1i2.545

Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

Asian Journal Science and Engineering publishes all those best ideas from the science, which can be introduced in the engineering. Since, obtaining the high-quality, competitive products is based on introducing high technologies from various independent spheres of scientific researches, but united by a common end result - a finished high-technology product. The purpose of this journal is to publish quality articles dedicated to the scientific research development that focuses Mechanical Engineering, Civil Engineering, Chemical Cngineering, Electrical Engineering, Engineering Physics

Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)

Articles 44 Documents

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Solar Charger Controller Efficiency Analysis of Type Pulse Width Modulation (PWM) and Maximum Power Point Tracking (MPPT) Elka Faizal; Yuniarto Agus Winoko; Mohammad Sukri Mustapa; Muhammad Kozin
Asian Journal Science and Engineering Vol 1 No 2 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Solar radiation at any time can be different due to various things such as blocking of sunlight due to clouds, the intensity of the sun from sunrise to sunset, cloudiness in the rainy season, and the presence of fog in certain areas which causes different levels of solar energy. radiation that causes the output power of solar cells to vary. and not optimal. For that we need a control device that can stabilize the energy output from solar cells called Solar Charge Controller (SCC). This research was conducted to determine the value of the output power, voltage, and current of SCC type Type Pulse Width (PWM) and Maximum Power Point Tracking (MPPT), then determine the value of efficiency, and compare which type of SCC is better to use. Sampling of solar voltage and current data in the field at 10.00 – 15.00, this is because at that time the sunlight reaches its maximum intensity. The results showed that the MPPT type SCC efficiency was higher than the PWM type SCC efficiency value, namely 84.623% the MPPT type SCC efficiency compared to 80.935% PWM type SCC efficiency. Keywords: Solar Charge Controller, Pulse Width Modulation, Maximum Power Point Tracking

The Effect of Strong Magnetic Field and Engine Rotation on Fuel Consumption and Exhaust Gas Emissions for Gasoline Engines Adelansyah Nugraha; Senat Orhani
Asian Journal Science and Engineering Vol 1 No 1 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

An Iincreasing number of means of transportation in various cities causes air pollution. There have been many studies to reduce air pollution due to motorized vehicles. One of them relates to the fuel line. The purpose of this study was to determine the relationship between the strength of the magnetic field in the fuel line on fuel consumption and exhaust emissions. The research method uses a pure experimental method. The independent variables are magnetic field strength (51, 102, 152, 202, and 249 gauss) in the fuel line and engine speed (1500 rpm, 2500 rpm, 3500 rpm and 4500 rpm). The dependent variable is fuel consumption (ltr/hour) and exhaust emissions. Test was carried Fourier transform infrared out to determine the chemical compound group of the fuel. The results showed that the highest concentration of transmittance at a wavelength of 2850 cm־¹ - 2970 cm־¹ was 77.75% with a magnetic field strength of 249 gauss, when compared to standard conditions it was 33.05%. At a strong magnetic field of 249 gauss with a rotation of 2500 rpm, it can save fuel consumption of 0.2 liters/hour. In addition, it can also reduce the level of exhaust gas O₂ by 4.16% (3500 rpm), CO gas by 1.29% (2500 rpm), CO₂ gas by 5.2% (1500 rpm) and HC gas by 215.66%. (4500 rpm). Keywords: Strong Magnetic, Fuel Consumtion, Exhaust Gas Emissions

Engineering and Financial Feasibility of Residential Housing Using Greenship Rating Tool Parameters Joko Setiono; Taufiq Rochman
Asian Journal Science and Engineering Vol 1 No 2 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Green building aims to reduce environmental effect by improving indoor air quality for households and the community. Green buildings use the Greenship Rating Tools evaluation standards to accomplish environmentally sustainable residential development. Purpose of the study: The most important part of this thesis is to do a engineering and financial preliminary study before the construction of houses. Methods: Three home types (48/66, 70/84, and 80/112) will be used to generate Malang Residential Home data for this project. On the basis of BBC, BFC, and GBC, the technical viability will be assessed. The NPV, BCR, IRR, and PBP will be utilized to establish the project's financial viability. Variations in capital proportion, as well as increases or decreases in project revenue and outcome, would all be included when calculating sensitivity. Results: Between 60% and 75% of the BBC's technical feasibility has been determined, whereas BFC is between 0.60 and 1%, and GBC is larger than 10%. To put Malang Residential Housing in the silver level, IDR 1,382,745,228 was the NPV, with a BCR of 1.02, an IRR of 59.75 percent, and a PBP of one year and six months. It was concluded that the project was viable based on the sensitivity of the project's income and results to its viability. Keywords: Greenship Rating Tool, Engineering Feasibility, Financial Preliminary Study

Analysis of Volume Fraction and Fiber Orientation on Tensile Strength and Impact Strength of Cannabis Sativa-Polyester Fiber Composites Ramadhana Luhur Prabangkara; Ismatova Dilafruz Tuymuratovna; Agus Tugas Sudjianto; Aji Suraji
Asian Journal Science and Engineering Vol 1 No 1 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

The development of composite materials in the engineering field is increasingly being used. This is due to its superior properties compared to conventional materials, such as the ratio between strength and density is quite high, rigid, the manufacturing process is very simple and resistant to corrosion and fatigue loads. The article determines the composition of the volume fraction and orientation of the fibers that have the most optimal tensile strength and impact on Sativa-Polyester Cannabis fibers. In this study, the fiber volume fraction was varied into 10%, 15%, 20% and the orientations were 0o , 30o, 45o, 60o and 90o .The method of making specimens in this study used a hand lay up with the ASTM tensile and impact test standards. The result indicates that the fiber volume fraction of 20% with the fiber orientation of 90o has the highest average tensile strength value of 30.56 MPa, compared to other variations. And the fiber volume fraction of 20% with a fiber orientation of 90o has the highest average value of impact strength, namely 493.6 Joules Keywords: Volume Fraction, Cannabis Sativa Fibers, Fiber Composites

The Effect of Heating and Cooling Media Temperature on Injection Molding Products Shrinkage Gumono Gumono; Zahratul Jannah AR; Agus Sujatmiko; Candra Adityaca
Asian Journal Science and Engineering Vol 1 No 2 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Injection molding is the process of molding products with various shapes and sizes from plastic materials. The problem that often arises is the presence of product defects due to shrinkage. In this regard, the effect of water cooling on product size shrinkage in the injection molding process of making acetabular cups with polypropylene plastic and metal steel mold materials will be investigated through experimental investigations. The test begins with the manufacture of molds and injection machines, then the PP liquid plastic is injected twice into the mold, the first with cooling and the second without cooling. Both products are compared for depreciation by measurement. Shrinkage analysis is done by measuring the height and diameter of the product which is then compared with the size of the mold, so that final conclusions can be drawn. Measurement of shrinkage on the outside of the product is taken from three directions, namely the height of the X-axis product (dx), the outside diameter of the Y-axis product (dy), and the outside diameter of the Z-axis product (hz). For the inside of the product with a hemispherical shape, the shrinkage measurement is calculated by calculating the volume which can then be found the average radius. The results showed that the average shrinkage of the cooling test on the X axis = 1.224 %, on the Y axis = 1.857 %, on the Z axis = 1.83%, and on the radius r = 0.825 %. The average shrinkage of the test without cooling on the X axis = 1,591 %, on the Y axis = 2,32%, on the Z axis = 2,369 %, and on the radius r = 1,267 %. Keywords: Injection Molding, Shrinkage, Heating Cooling Temperature

Simulation of Effect of Airfoil MH32 with Variation Taper Ratio and Angle of Attack Coefficient Lift and Drag Fixed wing Unmanned Aircraft Satworo Adiwidodo; Andy Hermawan Wijaya
Asian Journal Science and Engineering Vol 1 No 1 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Nowadays, the aerospace sector is growing very rapidly. One of the newest technologies is unmanned aerial vehicle. This UAV has functions to monitor disaster, mapping, espionage and shooting target. Therefore it needs a plane that can fly fast and agile. To achieve these characteristics, one of the most important things is the design of the wings. Some of the important parameters contained in the wings are the type of airfoil, aspect ratio, wing area, taper ratio, and angle of attack. The article aims to analyze the type of airfoil MH32 as well as the effect of the parameter taper ratio with variations of 0.2, 0.4, 0.6 in variations of angle of attack 0 °, 3 °, 6 °, 12 ° and 15 ° to the value of coefficient of lift and coefficient of drag. The method used in this research is experimental with a computational approach using a computer, the advantage of this method is that it does not need a real plane shape. The type of simulation used is Computational Fluid Dynamic (CFD) found in Ansys Fluent. From the simulation, value of coefficient of lift, coefficient of drag, and image of pressure contour and streamline velocity were obtained. All the data was processed and analyzed, then the result is that the taper ratio 0.4 has the highest lift to drag ratio of 19,417. It means that it has the highest value of the coefficient of lift and has the lowest coefficient of drag. These simulated results are validated with experimental from UIUC (University of Illinois at Urbana-Champaign) 1996. The conclusion of this study is that the smaller the taper ratio, the greater the value of the lift coefficient. Then increase the angle of attack to make the value of the lift coefficient is also getting bigger. Keywords: Simulation Effect Airfoil, Coefficient Lift, Coefficient Drag

Comparison Analysis of Equivalent Static Earthquake and Spectrum Response Dynamics on Steel Structure Diana Ningrum; Albertus Nahak; Nawir Rasidi
Asian Journal Science and Engineering Vol 1 No 2 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

The purpose of this study is to compare two methods of seismic load analysis, namely the static equivalent method and the dynamic response spectrum method. The case study is the integrated service building of Tribhuwana Tunggadewi University, Malang City which has 5 levels and is located in the 4 (medium) earthquake zone with moderate soil conditions. The research method used is descriptive quantitative. Collecting data of project drawings, as well as observations and interviews. Analysis method Equivalent static and dynamic response spectrum using software Staad Pro. The results compared are the base shear force (V), the floor lateral force (F), and the displacement or displacement. The result in the form of maximum internal force is analyzed to determine the capacity or ability of the profile to withstand combined loads. The comparison of base shear and displacement does not differ much from the two seismic analysis methods used. This insignificant difference is in accordance with the SNI that for structures with a height below 40m can be analyzed using equivalent statics, while in the case study it only has a height of 30m. So that the equivalent static analysis becomes more accurate to use because the analysis process is simpler than dynamic analysis, but for structures with a height above 5 floors it is recommended to use dynamic analysis. The results of the analysis of the ability of the steel profile on the cross section of the column and beam indicate a safe condition in carrying combined loads. Keywords: Volume Fraction, Cannabis Sativa Fibers, Fiber Composites

Compressor Air Pressure and Brake Shield Distance Brake to Braking Accuracy on Brakes Antilock Braking System Listiyono Listiyono; Nurhadi Nurhadi; Khambali Khambali
Asian Journal Science and Engineering Vol 1 No 1 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

The development of automotive technology to date is very fast. In the city, it is almost rare to find conventional cars. Most are already using modern technology. The hallmark of modern cars is that they are not fully mechanical. Already combined with several electric and pneumatic tools. Until now the development in the field of chassis is endless. Its initial development began with the discovery of ABS (Anti Lock Brake System) brakes. Basically, ABS is followed by supporting components such as EBD, ESP, and so on.All of this is actually inseparable from the main function of braking. Namely so that the car can run well,, deceleration and stop as desired appropriately. The parts of the brakes that are most influential are the brake shoes and discs and the compressed air from the brakes. Also the most influential accuracy is the distance of the brake shroud. Therefore, in this study the aims of 1. To find the effect of pressure and brake shroud distance. 2. What is the minimum air pressure and brake shroud for the brakes to work properly (grip). This research uses experimental design method. The data is processed with the Minitab program. Data processing shows that: 1. The braking speed is influenced by the amount of compressed air pressure. Partially the distance of the brake shroud does not affect the braking speed. But the interaction of pressure and shroud distance has an effect on braking speed. 2. Air pressure that can be used as a fast ABS braking process is 3.75 – 4.25 (bar) with a shroud distance of 5 (mm). Keywords: Compressor Air Pressure, Braking Accuracy, Antilock Braking System

Effect of Treatment Age on Mechanical Properties of Geopolymer Concrete Diana Ningrum; Handika Setya Wijaya; Elisabeth Van
Asian Journal Science and Engineering Vol 1 No 2 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

There are the same compound content, fly ash does not have the ability to bind, so it requires an alkaline activator for the polymerization reaction or binding reaction to occur. The alkali activators commonly used are sodium hydroxide and sodium silicate. The use of these materials makes concrete with fly ash known as geopolymer concrete. Geopolymer concrete is an alternative to conventional concrete, so it must have optimal strength like conventional concrete, therefore researchers are interested in testing the value of compressive strength, split tensile strength and mode of elasticity of geopolymer concrete using 10 molar alkali activator with a ratio of 3:2. for variations in the age of concrete 7, 14, 21, and 28 days; and the conversion value of geopolymer concrete using 10 molar alkali activator with a ratio of 3:2 for variations in the age of concrete 7, 14, 21, and 28 days. This research is an experimental study using variations in the age of concrete 7, 14, 21, and 28 days for geopolymer concrete using 10 molar alkali activator with a ratio of 3:2. The results of this study indicate that there is an effect of variations in the age of concrete on the value of compressive strength, split tensile strength, and modulus of elasticity of geopolymer concrete. Where the compressive strength, split tensile strength, and modulus of elasticity of geopolymer concrete at the age of 7 days are 31.40%; 35.44%; and 23.32% which at the age variation of 28 days increased by 100%. In addition, in this study, it is known that the conversion value at the age of 28 days for variations in the age of 7 days, 14 days, 21 days, and 28 days, respectively, is 0.31; 0.73; 0.97; 1.00 Keywords: Geopolymer Concrete, Compressive Strength, Modulus of Elasticity

Experimental Testing Comparison between Wiremesh Reinforcement and Plain Reinforcement on Concrete Slabs Nawir Rasidi; Margaritha P.I Dora; Diana Ningrum
Asian Journal Science and Engineering Vol 1 No 1 (2022): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

The demand for building quality in the construction of structures is a major requirement. One part of the structure is the floor slab work. The main obstacle is when the floor slab is loaded there will be deflection and bending moment. Meanwhile, there are demands for shorter work times at lower costs. This study aims to analyze the concrete slab against the flexural strength test, compressive strength test and tensile strength test of plate reinforcement. In this study, plate reinforcement used plain steel with a diameter of 6 mm and 8 mm. Then the plain iron reinforcement plate was compared with the M6 and M8 wiremesh reinforcement plates. The results showed that the flexural strength test for plain iron reinforcing plates with a diameter of 6 mm was 45000 Kg.cm, while for a concrete slab with wiremesh M6 reinforcement it was 42500 Kg.cm then for reinforcement with a diameter of 8 mm it was 32500 Kg.cm while wiremesh M8 was 57500 Kg. .cm. This shows that the concrete slab with wiremesh reinforcement is better able to accept the load, as well as better moment capacity in bending, compressive and tensile tests compared to conventional slabs. Keywords: Concrete Slabs, Wiremesh Reinforcement, Plain Reinforcement

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Sugeng Hadi Susilo

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asianjse@gmail.com

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Editorial Staff Asian Journal Scieence and Engineering Jl. Soekarno Hatta No.9, Jatimulyo, Kec. Lowokwaru, Kota Malang, Jawa Timur 65141

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Sugeng Hadi Susilo

Contact Email asianjse@gmail.com

Phone +6285380080398

Journal Mail Official asianjse@gmail.com

Editorial Address Editorial Staff Asian Journal Scieence and Engineering Jl. Soekarno Hatta No.9, Jatimulyo, Kec. Lowokwaru, Kota Malang, Jawa Timur 65141

Location Unknown, Unknown INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Sugeng Hadi Susilo

Contact Email
asianjse@gmail.com

Phone
+6285380080398

Journal Mail Official
asianjse@gmail.com

Editorial Address
Editorial Staff Asian Journal Scieence and Engineering Jl. Soekarno Hatta No.9, Jatimulyo, Kec. Lowokwaru, Kota Malang, Jawa Timur 65141

Location
Unknown,

Unknown

INDONESIA