Article Per Year (5 Year)
p-Index From 2020 - 2025
3.421
P-Index
This Author published in this journals
All Journal Jurnal Dedikasi SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin R.E.M (Rekyasa Energi Manufaktur) Jurnal Turbo : Jurnal Program Studi Teknik Mesin Academia Open Jurnal Mesin Nusantara Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Indonesian Journal of Innovation Studies PELS (Procedia of Engineering and Life Science) Procedia of Social Sciences and Humanities eProceedings of Management Prosiding SEMNAS INOTEK (Seminar Nasional Inovasi Teknologi)
Rachmat Firdaus
Universitas Muhammadiyah Sidoarjo
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

Published : 22 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 22 Documents
Search

 1   2   3 
Tube Blockage Solutions for Industrial Heat Exchangers Ferdiansyah, Faris; Firdaus, Rachmat
Procedia of Engineering and Life Science Vol 7 (2024): Proceedings of the 7th Seminar Nasional Sains 2024
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v7i0.1528

Abstract

This study investigates the root causes of blockages in heat exchanger tubes and proposes effective mitigation strategies. Industrial heat exchangers face recurrent challenges from tube blockages, impairing operational efficiency. Through a combination of experimental analysis, computational modeling, and data-driven approaches, the research identifies the role of contaminants in causing pressure drops and outlines targeted maintenance protocols. Findings underscore the significance of proactive measures in optimizing heat exchange processes, offering valuable insights for enhancing system performance across diverse industrial applications. Highlights: Tube blockages disrupt production efficiency. Pressure drop due to blockages affects system performance. Analysis needed for prevention measures. Keywords: Production Process, Blockage, Exchangere
Transforming Industry Through Hydraulic Solutions, Enhancing Productivity Sari, Ghulam Muhammad Abdu; Firdaus, Rachmat
Procedia of Engineering and Life Science Vol 7 (2024): Proceedings of the 7th Seminar Nasional Sains 2024
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v7i0.1529

Abstract

This study investigates the workings of such systems in Indonesia, focusing on the flow and pressurization of oil from reservoirs through pumps to working cylinders. Hydraulic systems are crucial in transforming oil fluid pressure into mechanical work, particularly in injection molding machines. Findings indicate that the pump's ability to convert and transmit mechanical energy effectively is pivotal in enhancing machine efficiency. These insights highlight potential areas for improvement in system design and operation, suggesting that optimizing filtration and pressurization could significantly boost industrial productivity and sustainability. Highlights: Hydraulic systems in Indonesia studied for oil flow and pressurization. Pump efficiency crucial for enhancing machine productivity. Optimization of filtration and pressurization can boost industrial sustainability. Keywords: Hydraulic System, Injection Molding Machine, System Works
Identifying Causes of Pressure Drop in Heat Exchanger E-204 Fernanda, Ardhi Shefta; Firdaus, Rachmat
Procedia of Engineering and Life Science Vol 7 (2024): Proceedings of the 7th Seminar Nasional Sains 2024
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pels.v7i0.1566

Abstract

This study investigates the efficacy of preventive maintenance measures on the E-204 Plate Heat Exchanger (PHE) to mitigate pressure drop issues affecting production efficiency and operational costs in the petrochemical industry. The research identifies gasket leaks and plate blockages as primary contributors, attributed to wear and dirt deposits. Through periodic inspections, gasket replacements, and mechanical and chemical cleaning, maintenance interventions were executed. Results demonstrate a significant reduction in gasket blockages and leaks, leading to improved fluid flow and operational efficiency. The findings underscore the importance of regular preventive maintenance in ensuring optimal PHE performance and cost-effective operations. Highlight : Maintenance Intervention: Periodic inspections, gasket replacements, and mechanical and chemical cleaning were implemented to address gasket leaks and plate blockages. Enhanced Efficiency: The study resulted in a significant reduction in gasket blockages and leaks, leading to improved fluid flow and operational efficiency. Implications for Industry: Regular preventive maintenance is crucial for optimal performance and cost-effective operations in petrochemical production processes. Keywords: Plate Heat Exchanger, Preventive Maintenance, Efficiency Improvement, Gasket Leaks, Petrochemical Industry
Pengaruh Jumlah Lubang Pendingin, Temperatur Pemanasan Dan Lebar Diameter Cetakan Terhadap Cacat Scratch Pada Cetakan Aluminium Firdaus, Rachmat; Akbar, Ali; Yulianto, Achmad Irfan; Mulyadi, Mulyadi
Jurnal Mesin Nusantara Vol 7 No 1 (2024): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v7i1.22435

Abstract

Alumunium dan Metal merupakan bahan material yang umum digunakan pada industry cetakan dan juga manufaktur sparepart mobil karena sifat materialnya yang padat dan keras. Produk berbahan aluminium sering memiliki masalah dalam proses produksinya yang bisa menimbulkan hal fatal yang lebih besar seperti udara yang terjebak dalam hasil cetakan alumunium, hasil cetakan memiliki ketebalan yang abnormal, dan juga adanya goresan non prediktif pada cetakan. Oleh karena itu, diperlukan penelitian tentang teknik analisa penggunaan cetakan yang baik agar tidak menimbulkan kegagalan cetakan. Penelitian ini di laksanakan secara eksperimen dengan tiga variable yaitu lebar gap, temperature dan jumlah pendinginan. Hasil dari penelitian ini menunjukkan Gap yang kecil dengan jumlah lubang pengingan yang sedikit timbul scratch atas dan bawah dengan temperatur yang paling rendah 670oC sampai temperature yang tinggi 750oC. Seiring dengan peningkatan lebar gap dan jumlah lubang pendinginan maka didapatkan pengurangan scrath. Dengan lebar gap space yang besar 0,3 mm maka scrath hilang meskipun jumlah lubang pendinginan yang sedikit maupun banyak dan temperature rendah sampai tinggi.
Socialization of Waste Sorting and Utilization: Sosialisasi Pemilahan dan Pemanfaatan Sampah Shodiq, Ja’far; Akbar, Ali; Firdaus, Rachmat; Huesein, Wa Ode Asma’ul Husna
Procedia of Social Sciences and Humanities Vol. 3 (2022): Proceedings of the 1st SENARA 2022
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pssh.v3i.239

Abstract

Dissemination of waste sorting and utilization activities was carried out to residents of Dayurejo Village, precisely Gamoh Hamlet, Prigen District, Pasuruan Regency from January to March 2022. The purpose of this activity is to increase knowledge and skills regarding the sorting and utilization of household waste as a more useful product. The method of activity carried out is by conducting socialization counseling and providing examples of the use of plastic waste into hanging gardens. From this activity, it can be seen that the enthusiasm of the participants to acquire skills and abilities regarding the use of household waste. Likewise, the youths were very enthusiastic in participating in the socialization and counseling activities on household waste management. The stimulus to utilize the existing waste was responded well by the participants, thus giving hope for efforts to improve the quality of waste processing and reduce the negative impact of household waste and can produce more beneficial outcomes from household waste that is produced every day.
Prototype Energy Saving Car Chassis Design and Analysis Using 6061 Aluminum Material Pangestu, Eka Adji; Fahruddin, A'rasy; Akbar, Ali; Firdaus, Rachmat; Iswanto; Nia Nuraeni Suryaman
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 2 (2024): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i2.1706

Abstract

The chassis is an important component car which functions to support the load on the vehicle and has a strong construction. The chassis, as the main support for all vehicle componentsy. Increased fuel use and rising global crude oil prices have encouraged research into energy saving cars with special designs that can reduce fuel consumption and pollutant emissions. The design process with variations in rollbar shape and variations in cross sectional shape with 6061 aluminum material using Autodesk Inventor 2024 software. After the design process is complete, stress analysis test stage is carried out to obtain analysis data, namely von misses stress, strain, displacement, safety factor. The results of the chassis design using concept B with a pipe cross-sectional shape and rollbar fillet model are more recommended, because it has better von Mises stress value and a better safety factor, besides that the concept B chassis design is easier in the assembly process with prototype type energy efficient car body.
Pengaruh Aspek Ratio Luasan Sudden Contraction Terhadap Head Loss Aliran Laminar Waluyo, Satrio; Akbar, Ali; Tjahjanti, Prantasi Harmi; Firdaus, Rachmat
Jurnal Mesin Nusantara Vol 7 No 2 (2024): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v7i2.22530

Abstract

Penelitian ini dugunakan untuk mengetahui Head Loss aliran yang terjadi pada pipa Sudden Contraction dengan perbandingan spesimen 1, 2, dan 3 pada diameter tabung akrilik 0,2D, 0,4D, dan 0,6D. Dengan mengetahui Head Loss yang terdapat pada tiga pipa akrilik tersebut, maka akan diketahui nilai rugi tekanan yang terjadi. Dalam Penelitian ini digunakan debit 0,0005m3/s, yang mengalir pada saluran. Tekanan yang terjadi pada sisi masuk (D1) dan sisi keluar pipa (D2) Sudden Contraction akan diukur oleh manometer U. Head Loss dihitung dari perbedaan tekanan yang terjadi pada masing-masing aliran disetiap aspek rasio. Dari hasil penelitian ini didapatkan bahwa semakin besar aspek rasio , maka senakin kecil Head Loss yang terjadi, yaitu pada aspek rasio 0,2D sebesar 0,0043 meter, aspek rasio 0,4D sebesar 0,0014 meter, aspek rasio 0,6D sebesar 0,0003 meter .
Maximizing Motorcycle Power and Torque with Roller Modifications: Memaksimalkan Tenaga dan Torsi Sepeda Motor dengan Modifikasi Roller Muchammad Efendi; Rachmat Firdaus
Indonesian Journal of Innovation Studies Vol. 25 No. 3 (2024): July
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v25i3.1159

Abstract

In the automotive world, rapid advancements in motorized vehicle technology necessitate consumers to be selective in vehicle choice. This study examines the performance of motorcycles using modified racing rollers versus standard factory rollers. Focusing on a 150cc matic motorcycle, we analyzed power and torque outputs using rollers of different masses (11g, 16g, and standard 15.5g). Field studies and literature reviews were conducted, employing tools like dynotests to measure performance at RPM ranges from 4,700 to 9,500. Results indicate that the 16g roller achieved the highest torque of 12.45 N/m at 6,800 RPM, while the 11g roller attained 12.09 N/m at 67,300 RPM. The standard 15.5g roller reached 12.07 N/m at 76,400 RPM. This research highlights the impact of roller mass on motorcycle performance, providing valuable insights for enhancing vehicle efficiency and consumer choice. Highlight: 16g roller achieves highest torque of 12.45 N/m at 6,800 RPM. 11g roller reaches torque of 12.09 N/m at 67,300 RPM. Standard 15.5g roller attains 12.07 N/m at 76,400 RPM. Keywoard: Motorcycle Performance, Racing Rollers, Torque, Power Output, 150cc Matic
Pengaruh Aspek Ratio Luasan Sudden enlargement Terhadap Head Losses Aliran Laminar Rachmadani, Dhaniar Gumelang; Akbar, Ali; Tjahjanti, Prantasi Harmi; Firdaus, Rachmat
Jurnal Mesin Nusantara Vol 8 No 1 (2025): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v8i1.22529

Abstract

Penelitian ini dugunakan untuk mengetahui Head Loss aliran yang terjadi pada pipa Sudden enlargement/Expansion dengan perbandingan spesimen 1, 2, dan 3 pada diameter tabung akrilik 0,2D, 0,4D, dan 0,6D. Dengan mengetahui Head Loss yang terdapat pada tiga pipa akrilik tersebut, maka akan diketahui nilai rugi tekanan yang terjadi. Dalam Penelitian ini digunakan debit 0,0005m3/s, yang mengalir pada saluran. Tekanan yang terjadi pada sisi masuk (D1) dan sisi keluar pipa (D2) Sudden Expansion akan diukur oleh manometer U. Head Loss dihitung dari perbedaan tekanan yang terjadi pada masing-masing aliran disetiap aspek rasio. Dari hasil penelitian ini didapatkan bahwa semakin besar aspek rasio , maka senakin kecil Head Loss yang terjadi, yaitu pada aspek rasio 0,2D sebesar 0,0043 meter, aspek rasio 0,4D sebesar 0,00097 meter, aspek rasio 0,6D sebesar 0,00067 meter.
Analisis Kinerja Mesin Circular saw Berorientasi Potong 45-90 Derajat Untuk Aplikasi Industri Kayu Studi Eksperimental Perbawa, Dafva Ari; Akbar, Ali; Firdaus, Rachmat; Mulyadi, Mulyadi
Jurnal Mesin Nusantara Vol 8 No 1 (2025): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v8i1.24694

Abstract

Penelitian ini menganalisis performa mesin circular saw yang dapat beroperasi pada sudut 45-90 derajat dalam industri kayu, menggunakan kayu sengon, meranti, dan jati. Parameter yang diuji meliputi kecepatan pemotongan, akurasi potongan, dan keandalan operasional, menggunakan Surface Roughness Tester dan Digital Angle Ruler. Hasil menunjukkan kayu sengon dan meranti mencapai kehalusan terbaik pada sudut 65 derajat, sementara jati menunjukkan kehalusan konsisten. Keakuratan sudut potong sangat baik pada semua sudut yang diuji. Desain dan kualitas mata gergaji serta kalibrasi mesin mempengaruhi presisi dan kehalusan potongan. Rekomendasi mencakup pemilihan mesin dengan kemampuan sudut potong variabel, kalibrasi dan perawatan rutin, serta pemahaman sifat material kayu untuk menentukan sudut potong dan jenis mata gergaji optimal. Temuan ini membantu industri kayu meningkatkan produktivitas dan kualitas produk.
Co-Authors Ahmad Ahfas Ahmad Nurwanda Bawono Putra Ajitiyo Dananjoyo Alfiansyah Satrio Wicaksono Ali Akbar Ali Akbar Anita Rahma Nur Iqlima Annisa Nurbaiti Deannes Isynuwardhana Edi Widodo Eriq Helmy Aziz Fahruddin, A'rasy Ferdiansyah, Faris Fernanda, Ardhi Shefta Hamzah Setiawan Huesein, Wa Ode Asma’ul Husna iswanto Iswanto Iswanto Mochammad Nur Rizki Mohammad Afif Fajar Mohammad Dani Iswanto Muchammad Efendi Mulyadi Mulyadi Mulyadi Mulyadi Nia Nuraeni Suryaman Nur Afif Rozikin Pangestu, Eka Adji Paramitha Amelia Kusumawardani Perbawa, Dafva Ari Prantasi Harmi Tjahjanti Rachmadani, Dhaniar Gumelang Rahmania Sri Untari Ribangun Bamban Jakaria Sari, Ghulam Muhammad Abdu Shodiq, Ja’far Siti Cholifah Waluyo, Satrio Yulianto, Achmad Irfan