Article Per Year (5 Year)
p-Index From 2021 - 2026
0.817
P-Index
This Author published in this journals
All Journal Perwira Journal of Science and Engineering (PJSE) Asian Journal Science and Engineering AMMA : Jurnal Pengabdian Masyarakat Jurnal Pendidikan Teknik Mesin
Zulfikar Alief Utama, Iqbal
Unknown Affiliation
Humanities Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Analysis of Bioethanol Purification with Two Outlet Distillation System Iqbal Zulfikar; Bambang Irawan
Asian Journal Science and Engineering Vol 2 No 1 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i1.761

Abstract

The purpose of this study is to analyzes of the process of purifying bioethanol produced by a distillation apparatus that uses two holes of different heights. The equipment used in this study is a distillation prototype tool which has two steam holes coming out of the vessel, with different height positions. The research method used is experimental. Data collection was based on the results of distillation experiments with the independent variable alcohol content in the solution, the dependent variable alcohol content resulting from the distillation process and the control variable is steam temperature and processing time. The results of the study were processed with statistics showing that the position of the holes affects the product resulting from the alcohol content in bioethanol, a high hole position will produce bioethanol with a greater alcohol content. The alcohol content in the solution that is put into the distillation vessel affects the distillation results, the greater the alcohol content, the greater the alcohol product. The interaction between the position of the holes and the alcohol content in the solution affects the amount of alcohol product in the bioethanol. input solution containing low alcohol cannot reach the distillation results of bioethanol with high alcohol content. Bioethanol through the top hole has a higher alcohol content than that through the bottom hole. The alcohol content in the solution affects the difference in the alcohol content produced between the upper and lower holes. Distillation can produce bioethanol with a high alcohol content of up to 96%, with a solution containing about 85% alcohol. This distillation process can be done privately so that everyone can make fuel for their own vehicles. Keywords: Bioethanol Purification, Distillation System, Purifying Bioethanol
ANALYSIS OF MECHANICAL CHARACTERISTICS OF TOOTH BUCKET EXCAVATOR BASED ON DIFFERENT GRADE LEVELS nurdin, akhmad; Zulfikar Alief Utama, Iqbal; Angger Prasetiyo, Bagus; Hidayat, Rosyidi; Paundra, Fajar; Kurniawan, Fajri; Yasmin, Dzikrina Salsabila; Muhyi, Abdul
Jurnal Pendidikan Teknik Mesin Vol. 25 No. 02 (2025): December 2025 (on going)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jptm.v25i02.33074

Abstract

The purpose of this study is to comprehend the microstructure and hardness value of three distinct tooth bucket manufacturers. Three manufacturers' excavator tooth buckets—Canada Grade, China Grade A, and China Grade C—are compared for their mechanical characteristics. Among the tests are the Vickers method for measuring hardness, optical microscopy for examining microstructure, and chemical composition analysis. According to the results, the primary elements in all three specimens—carbon, silicon, manganese, and chromium—meet the DIN Grade 25CrMo4 standard. The martensite phase, which gives the Canada product its hardness and resistance to deformation, dominates its microstructure. The China Grade C product, on the other hand, has a more prominent ferrite phase, which raises ductility while decreasing hardness. China Grade C (570.24 HVN) had the highest hardness test value, followed by China Grade A (517.67 HVN) and Canada (468.09 HVN). This demonstrates that while Canada excels at withstanding heavy loads without damage, China Grade C is better suited for applications needing high wear resistance. Users of heavy machinery can use this study as a scientific guide when choosing bucket nails based on operational requirements, including material toughness and wear.
Penerapan Pembuatan Sampel Uji Tarik FCD Type Y-Blok Spesimen pada PT. Aneka Adhilogam Karya Klaten Iqbal Zulfikar Alief Utama; Lutiyatmi; Akhmad Nurdin
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 11 : Desember (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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

Abstract

The metal casting process can be briefly interpreted as a sequence of processes for making cast objects that are mutually continuous, starting from the design of the cast object to the final processing process. The Ceper metal casting industry is also a metal casting industry that carries out the casting process, one type of cast product is a product from cast iron with the type of nodular cast iron (FCD) and consumers who order this FCD product come from various groups, both private institutions and government institutions, even internationally. Consumers want the ordered product to be good and high quality, to meet these consumer demands, the metal casting industry that produces products must have their products tested and maintained for quality both in terms of manufacturing and testing. FCD products made in the Ceper metal casting industry, most of the product results and their testing have not been able to meet the standard FCD criteria. The results of supporting tests to determine the type of FCD product include the FCD product manufacturing process, chemical composition tests, hardness, metallography, thermocouples and tensile strength of the products made. The purpose of this study is to obtain quality nodular cast iron (FCD) casting products according to the needs of the Ceper metal casting industry and can reduce the reject ratio of cast products. This community service program was conducted to implement the production of nodular cast iron samples in partner industries, and to conduct the testing process along with the creation of standard samples. Molds for tensile test samples were created and further research was conducted on the method for producing Y-Block Tensile Test Specimens.
Pengaruh Pasir Silika sebagai Filler pada Komposit Berpengikat Poliester teradap Karakteristik Komposit Zulfikar Alief Utama, Iqbal; Yusron Wijanarko, Zidan; Bagus Prasetiyo, Angger; Harwijayanti, Widyanita; Whonica
Perwira Journal of Science & Engineering Vol 6 No 1 (2026)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/nrkhw323

Abstract

Pertumbuhan jumlah manusia dan perkembangan pembangunan di berbagai wilayah di dunia mempengaruhi mobilisasi manusia yang membutuhkan kendaraan untuk berpindah tempat dalam memenuhi kebutuhan. Untuk memenuhi kebutuhan kendaraan di perlukan material body kendaraan dengan material yang memiliki ketahanan terhadap uji mekanis. Komposit merupakan material unggul dimana tailorability (kekuatan) bisa disesuaikan dengan kebutuhan. Komposit polimer pada bidang otomotif dikembangkan  dengan kualifikasi ketahanan bakar yang baik. Pengembangan komposit polimer dapat dilakukan dengan filler sehingga menghasilkan material yang lebih unggul dan menghasilkan kinerja yang tinggi. Pasir Silika merupakan Geomaterial dengan istilah pasir kuarsa, pasir putih atau pasir industri. Secara umum pasir silika terdiri dari silikon dioksida ( SiO2 ). Pasir Silika memiliki sifat keunggulan apabila digunakan sebagai material manufaktur diantaranya adalah keras, memiliki titik leleh yang tinggi/ tahan panas, tahan terhadap tekanan dan abrasi. Resin yukalac 157 BQTN merupakan polimer jenis termosted poliester biasa diaplikasikan pada suhu kerja mencapai 79 ˚C. dengan berat jenis 1,3-1,4 kg/cm3.Penelitian ini bertujuan untuk mengetahui karakteristik komposit geopolimer antara pasir silica dan polimer yukalac 157 BQTN terhadap kekuatan lentur dan kekuatan tarik.
Co-Authors Angger Bagus Prasetiyo Angger Prasetiyo, Bagus Bambang Irawan Fajri Kurniawan Harwijayanti, Widyanita Hidayat, Rosyidi Lutiyatmi Muhyi, Abdul Nurdin, Akhmad Paundra, Fajar Whonica Yasmin, Dzikrina Salsabila Zidan Yusron Wijanarko