Article Per Year (5 Year)
p-Index From 2021 - 2026
2.286
P-Index
This Author published in this journals
All Journal TEKNIK Majalah Ilmiah MOMENTUM Jurnal Rekayasa Mesin Nusantara Science and Technology Proceedings Jurnal Pengbdian Teknik Mesin Biomedical and Mechanical Engineering Journal
Ahmad Khairul Faizin
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya 60294, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Transportation

Published : 19 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 19 Documents
Search

 1   2 
Mini Factory Laboratory from Technology Reverse Engineering Ballet Reactors in Struvite Formation Luluk Edahwati; Sutiyono; Wahyu Dwi Lestari Edahwati; Radissa Dzaky Issafira; Wiliandi Saputro; Ahmad Khairul Faizin; Ndaru Adyono; Tria Puspa Sari
BIOMEJ Vol. 1 No. 2 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Reverse Engineering (RE) can be interpreted as procedures and processes in dismantling an object to find out the materials, working methods, or technology used so that the object can function properly. Design activities using the reverse engineering concept make it easier for students to understand product specifications, product advantages and disadvantages, product production processes and production cost estimates before designing new products. The laboratory is one place that can be used to carry out the reverse engineering process. The bulkhead reactor is an alternative to the stirred tank reactor with the aim that the resulting product is maximized both in terms of quantity and morphology or shape of the material. The benefit of disassembling this product is as a first step in understanding the concept of reverse engineering in the task of designing machines or tools. From the results of the study, it was found that the formation of struvite occurred at pH 9 using an air flow rate of 1 l/minute.
Non-Premixed Combustion Simulation with Variation of Swirl Burner Slope using Turbulence Modeling K-ɛ Radissa Dzaky Issafira; Widya Wijayanti; Luluk Edahwati; Wahyu Dwi Lestari Edahwati; Wiliandi Saputro; Ahmad Khairul Faizin; Ndaru Adyono; Tria Puspa Sari
BIOMEJ Vol. 1 No. 2 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Combustion is a very complex matter. Therefore, we need to know the phenomenon that occur in combustion apart from the temperature distribution. This research uses quasi-research. The background in using quasi-experimental is because it has advantages in data collection. Moreover, the phenomena that occur in more detailed research by means of a numerical approach could also be observed. This research was conducted with an approach (simulation) of diffusion combustion using methane (CH4) fuel and air containing 29% oxygen (O2), 71% nitrogen (N2) and the addition of swirl in the air ducts. k-ɛ turbulence modeling was aaplied in this somulation. This variation of the fuel velocities are 3 m/s, 5 m/s, 7 m/s, where the air velocity was varied for 3 m/s, 5 m/s, 7m/s. In this simulation, room pressure of 1 atm was applied for the surrounding. The results showed that, the greater the angle of inclination of the swirl burner, the shorter the flame. And on the variation of fuel velocity, we get the result that the higher fuel velocity, increase fire height; however, the temperature of the fire height will decrease.
Manufacturing Acetabular Liner UHMWPE using CNC Milling Wahyu Dwi Lestari Edahwati; Luluk Edahwati; Radissa Dzaky Issafira; Wiliandi Saputro; Ahmad Khairul Faizin; Ndaru Adyono; Tria Puspa Sari
BIOMEJ Vol. 1 No. 2 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Ultra High Molecular Weight Polyethylene (UHMWPE) is a biomedical polymer that is useful in the orthopedic field as a bearing component in artificial hip joints. In general, these polymers pair up and rub against each other with metallic biomaterials, namely 316L stainless steel, cobalt chromium (CoCr) and titanium, which can cause material wear problems. One way to increase the wear resistance of UHMWPE is through the manufacturing process. The purpose of this research is to manufacture acetabular liner products using a CNC milling machine to obtain high surface quality and dimensional accuracy. The CNC milling machine used is the type of YCM 1020 EV 20. The manufactured specimen is then measured for roughness and dimensional accuracy. Based on the measurement results, it is found that the acetabular liner specimens from the CNC milling process are still in accordance with the standard ASTM standard (F 2033-12).
Availability of Palm Oil Biodiesel in Indonesia and Its Effect on Diesel Engine: A Review Wiliandi Saputro; Wahyu Dwi Lestari Edahwati; Luluk Edahwati; Radissa Dzaky Issafira; Ahmad Khairul Faizin; Ndaru Adyono; Tria Puspa Sari
BIOMEJ Vol. 1 No. 2 (2021): BIOMEJ
Publisher : UPN 'Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Palm oil is one of the base ingredients that can be used in making of biodiesel which is an alternative fuel to replace diesel fuel. The ability of palm oil as biodiesel should be balanced with the quantity of palm oil as well as the level of biodiesel production capability. In this paper, authors try to analyze about palm oil as biodiesel starting from number of palm plantations up to the level of biodiesel production capability from palm oil. The analysis conducted in the first part of this paper can be used as a reference that shows the level of availability of the palm oil which can be processed into biodiesel as an alternative fuel in the future. In the next part, the authors tried to analyze the impact of biodiesel made from palm oil starting from engine performance, exhaust gas emissions, rate of wear, quality of lubricant, and deposit formed. It was is done in order to find out the advantages and disadvantages that occur from biodiesel so that it can be used as a reference or consideration in the use of biodiesel-fueled palm oil.
Internet of Things ESP8266 Module for Vocational High School Student Prismahardi Aji Riyantoko; Ahmad Khairul Faizin; Burhan Syarif Acarya; Fairuz Mumtaz Idhizar Farraz
Nusantara Science and Technology Proceedings 7st International Seminar of Research Month 2022
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3354

Abstract

The development of information and communication technology in the industrial era 4.0 is very rapid, especially in the field of IoT (Internet of Things). To get data and process data very quickly and in real-time, it takes a device that is connected to the internet network that will be able to provide information to anyone who is connected to the IoT device. IoT is the development of a system that can monitor and control from a remote place via the internet. In the current era, almost all people can access the internet easily, so by utilizing and optimizing the use of communication through the internet network by connecting sensor and actuator devices to the internet network. With this development, we need to provide the community with knowledge and skills about IoT through workshops, training and mentoring. The training includes knowledge of sensors, microcontrollers, and actuators that can be programmed and connected to the internet network. The ESP8266 microcontroller is a control device that can be filled with a program for controlling and monitoring devices installed on the internet network
Structural Analysis of Chassis Frame of a Prototype Car: A Finite Element Method Ahmad Khairul Faizin; Ryan Rizaldi; Wahyu Aditya Setya Putra; Nailul Hasan
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3636

Abstract

Cars are a means of transportation that is considered very important in human life, so it requires a high level of safety and comfort. Currently, there has been a lot of research on the manufacture of prototype category energy-efficient car chassis with electric motor drive. The frame is an integral part and an important part in the design of a vehicle. The frame was design using software with frame dimensions of 2.230 mm long and 360 mm wide. The material used is 7075 aluminum prototype chassis. Furthermore, the chassis frame construction was evaluate using the static simulations in order to determine von misses stress, displacement, and safety factor. The analysis carried out with a maximum load of 1.000 N, the results of the von misses stress analysis were obtained with the highest stress level of 13.8 MPa. The maximum displacement result is 0.39 mm was in the driver position, with a maximum safety factor of 3 and a minimum of 1, it is declared safe.
The Analysis and Evaluation of The Performance of 7 Stage Centrifugal Compressor Apparatus with Variations in Blade Speed and Flow Rate Alvin; Ahmad Khairul Faizin
Jurnal Rekayasa Mesin Vol. 20 No. 2 (2025): Volume 20, Nomor 2, Agustus 2025
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v20i2.6642

Abstract

Centrifugal compressors have an important role in industry because they function to increase gas pressure through the impeller. However, efficiency and power consumption issues frequently arise, particularly under variations in blade speed and flow rate. Previous studies have mostly employed CFD simulations without direct experimental analysis of blade speed and valve opening on actual compressor performance. This study aims to analyze the performance of a seven-stage centrifugal compressor with variations in blade speed and flow rate through experimental methods to obtain efficient operating conditions. The research method involved collecting data three times with variations in blade speed and valve openings of 50%, 75%, and 100%, and analyzing isentropic efficiency based on motor power. The results showed the highest efficiency of 67% occurred at 550 RPM with a 50% valve opening, while efficiency decreased at 100% valve opening across all RPM levels. Motor power consumption increased from 35 Watts at 450 RPM to 280 Watts at 1350 RPM, but the increase in power was not accompanied by an increase in efficiency, especially at high speeds, which led to turbulence and decreased performance. In conclusion, the optimal compressor performance was achieved at medium blade speeds with partial valve openings, resulting in optimal efficiency and power consumption. These findings can serve as a reference for the design and operation of centrifugal compressors to achieve more energy- and cost-efficient performance.
Analisis Aerodinamika Pada Bodi Mobil Listrik Kalimasada Tipe Bodi Urban concept Dengan Pendekatan Computational Fluid Dynamics wahyu aditya setya putra; Ahmad Khairul Faizin
JURNAL ILMIAH MOMENTUM Vol 20 No 2 (2024): Vol 20, No 2
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v20i2.11604

Abstract

Peningkatan efisiensi energi merupakan salah satu tantangan utama dalam pengembangan kendaraan listrik. Penelitian ini bertujuan untuk mengoptimalkan desain aerodinamis bodi mobil listrik Kalimasada tipe urban konsep. Metode yang digunakan dalam analisis numerik dengan simulasi CFD untuk memprediksi karakteristik aerodinamika serta mengamati fenomena aliran yang terjadi. Hasil simulasi menunjukkan bahwa desain bodi mobil Kalimasada saat ini memiliki potensi untuk ditingkatkan dari segi aerodinamis, dimana pada nilai koefisien gaya hambat dan gaya angkat mengalami penurunan seiring meningkatnya kecepatan aliran fluida. Perbandingan dari hasil simulasi yang terjadi dengan kecepatan yang sama antara desain bodi mobil Kalimasada, Antawirya, dan Nogogeni. Nilai koefisien gaya hambat pada desain bodi mobil Kalimasada dengan desain bodi mobil Antawirya menghasilkan nilai persentase perbandingan sebesar 18,6% sedangkan nilai koefisien gaya hambat pada desain bodi mobil Kalimasada dengan Nogogeni menghasilkan nilai persentase sebesar 38%. Oleh karena itu pada analisis lebih lanjut diharapkan melakukan modifikasi pada desain mobil, sehingga dapat diharapkan meningkatkan efisiensi aerodinamis pada kendaraan.
Study of Machining Strategies for CNC Milling of Foot Prosthetic Using Taguchi Methodology Wahyu Dwi Lestari; Ndaru Adyono; Ahmad Khairul Faizin; Kadek Heri Sanjaya
TEKNIK Vol 44, No 3 (2023)
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v44i3.57885

Abstract

The use of CNC milling machines in the industrial sector greatly contributes to the production of high-quality products that align with consumers' desired shapes. Currently, the precise machining parameters for manufacturing a product are determined through a time-consuming and costly process of trial and error. Most prior significant studies have examined the variables that can impact the duration of machining time. However, different machining conditions require different control factors. The key objective of this study is to enhance the machining parameters and identify the crucial factors that influence the duration of machining in the production of foot prostheses. The experiment was conducted using a 3-axis CNC milling machine with five machine parameters: spindle speed, feed rate, step over, depth of cut, and toolpath strategy. The Taguchi method with orthogonal array L2735 was chosen as an optimization method. The optimum machine parameters are analyzed using signal-to-noise (S/N) ratio and ANOVA. The analysis shows that spindle speed is the most influential variable on machine time. The next factor is the depth of cut, feed rate, and toolpath strategy, and the last is step over.
Co-Authors Alvin Burhan Syarif Acarya Denny Widhiyanuriyawan Erwan Adi Saputro Fairuz Mumtaz Idhizar Farraz Jayan Sentanuhady Kadek Heri Sanjaya L.Urip Widodo, Yohandrik Novel Karaman Luluk Edahwati Mr. Sutiyono Muhammad Ikhsan Nailul Hasan Ndaru Adyono Ndaru Adyono Ndaru Adyono Ndaru Adyono Prismahardi Aji Riyantoko Radissa Dzaky Issafira Radissa Dzaky Issafira Radissa Dzaky Issafira Radissa Dzaky Issafira Radissa Dzaky Issafira Radissa Dzaky Issafira Radissa Dzaky Issafira Radissa Dzaky Issafira Ryan Rizaldi Sutiyono Tria Puspa Sari Wahyu Aditya Setya Putra wahyu aditya setya putra Wahyu Dwi Lestari Wahyu Dwi Lestari Wahyu Dwi Lestari Wahyu Dwi Lestari Edahwati Widya Wijayanti Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Wiliandi Saputro Willie Prasidha