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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Jurnal Teknik Mesin Indonesia Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Teknik Industri Terintegrasi (JUTIN) Narra J AMMA : Jurnal Pengabdian Masyarakat
Arifin, Jainal
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Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health

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Pengaruh Penambahan Ball Mouth Pada Pompa Aliran Aksial Pvc 6 Inci Bertenaga Motor Listrik 1.5 Kw rendi; Arifin, Jainal; Maulana, Ahmad
Jurnal Teknik Mesin Indonesia Vol. 19 No. 2 (2024): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v19i02.612

Abstract

Axial pumps are a type of centrifugal type water pump that is widely used by the agricultural and fishing industries to move water in large capacities. This research aims to study the effect of adding Ball Mouth to an axial flow pump designed and made from 6 inch PVC pipe powered by a 1.5 kW electric motor. This research uses an experimental method, namely by testing 3 prototype axial pumps using Ball Mouth model A, model B and without using a ball mouth. The test was carried out by varying the number of propeller blades, namely blade 2, blade 3 and blade 4. Data was taken by measuring volume flow rate via U-Notch and electrical power consumption via an Ampermeter measuring instrument. The results show that the addition of the Ball Mouth, especially model B, increases the volume flow rate and pump efficiency significantly. However, the differences between models A and B are not consistent across blades, indicating the importance of design adjustments for optimal results.
Analisis dan Perancangan Alat Biogas Sebagai Energi Alternatif Skala Rumah Tangga Dalam Pemanfaatan Limbah Kotoran Sapi Arifin, Jainal; Herlina, Firda; Amin, Ahmadil; Iman, Hendi Cahya
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 7 No. 2 (2023)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v7i2.1610

Abstract

Energy in recent years has become a critical problem in the world. The increasing demand for energy due to population growth and depleted reserves is the problem of World Oil and Emissions. Fossil fuels bring pressure on every country to produce and use renewable energy. In addition, world oil prices have risen to $100 per barrel, which is also a serious cause that affects many countries' people. countries in the world, especially Indonesia. The method that needs to be used to improve the scarcity of Lpiji gas in Ambawang Village, Batu Ampar District is by using cow dung to become biogas. The stages are: Designing a household-scale biogas appliance, preparing materials and equipment, and testing the household-scale biogas appliance that has been designed. So it can reduce the scarcity of Lpiji gas. Based on observations in the Ambawang Village area, Batu Ampar District, they admitted that obtaining LPG fermented by anaerobic bacteria was difficult. The largest change in manometer air height occurred on days 19 and 30 in Variation S1, the change in manometer air height was 4 cm compared to the previous day. The total height of the manometer for 30 days was 28.2 cm. The pressure of biogas produced for 30 days was 104090.4 N/m2, the maximum amount of biogas evolution on days 19 and 30 was 0.4192011 m3, and the total amount of biogas for 30 days was 12.15 m3. The methane gas produced during 30 days of fermentation can be used on the stove for 51 minutes 34 seconds, and the color of the flame is slightly bluish, indicating that the methane gas produced still contains a small percentage of water. And can heat 1.5 liters of 93°C water for 12 minutes.
Perancangan Terowongan Angin Rangkaian Terbuka Dengan Sistem Piv (Particle Image Velocimetry) rendi, rendi; Firman, Muhammad; Hartadi, Budi; Arifin, Jainal; Irfansyah, Muhammad
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 1 (2024)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v8i1.1781

Abstract

This research aims to design an open circuit wind tunnel with a piv (particle image velocimetry) system. This particle image velocimetry system was chosen because this system has the advantage of being easy to make and the equipment used is not too complicated. The method used in this design is a mathematical calculation method with. This tunnel is designed to have dimensions of 8 meters long, 1.75 meters wide and 1.75 meters high. With a maximum planned wind speed of 30 m/s. The design results state that the head loss in the test section is 1.28 m, in the contraction chamber is 0.52 m and the head loss in the diffuser is 0.49 m so the total head is 2.29 m so a pump power of 11.94 hp is needed to be able to simulate a maximum wind flow of 30 m. /s
Diagnostic accuracy of GeneXpert in the diagnosis of spinal tuberculosis: A systematic review and meta-analysis Biakto, Karya T.; Kusmawan, I GPY.; Massi, Muhammad N.; Usman, Muhammad A.; Arifin, Jainal
Narra J Vol. 4 No. 2 (2024): August 2024
Publisher : Narra Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52225/narra.v4i2.925

Abstract

Tuberculosis remains a significant global health issue, with spinal tuberculosis being a severe form of extrapulmonary tuberculosis. Despite the high morbidity associated with spinal tuberculosis, effective and rapid diagnostic methods are limited. The aim of this study was to evaluate the diagnostic accuracy of the GeneXpert compared to other microbiological methods in diagnosing spinal tuberculosis. A systematic review and meta-analysis were conducted following the PRISMA guidelines. Six databases (PubMed, Scopus, EBSCO, EMBASE, ScienceDirect, and Cochrane Central) were searched for relevant studies as of August 31, 2023. Studies were selected based on predefined inclusion criteria, focusing on patients diagnosed with spinal tuberculosis and comparing GeneXpert to microbiological culture, acid-fast bacilli (AFB) staining, and polymerase chain reaction (PCR). Two authors independently performed data extraction and quality assessment, and the meta-analysis was conducted using Meta-DiSc 2.0. Fourteen studies comprising retrospective cohort, prospective cohort, and cross-sectional designs were included. GeneXpert demonstrated a pooled sensitivity of 92% (85–96%) and specificity of 71% (51–86%) compared to culture. AFB smear had the highest specificity at 80% (70–88%) but the lowest sensitivity at 27% (20–35%). The PCR had sensitivity and specificity of 83% (67–92%) and 58% (31–81%), respectively. Substantial heterogeneity was noted across the studies. This study highlighted that GeneXpert had high sensitivity and moderate specificity in diagnosing spinal tuberculosis, making it an alternative to conventional methods. However, further validation through larger, interventional studies is necessary to standardize its use in clinical practice.
Enhanced Performance of the Gorlov Hydrokinetic Turbine through Blade Profile Modification Rendi, Rendi; Arifin, Jainal; Pauzan, Muhammad
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 18 No. 1 (2024): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.18.1.19-25

Abstract

The Gorlov turbine is a widely used hydrokinetic turbine for household-scale hydroelectric power generation, known for its superior performance compared to other turbine types. Despite its high efficiency, the Gorlov turbine has a significant drawback: it cannot operate effectively at low water speeds due to its blade design, which relies solely on lift force. This study aims to address this limitation by modifying the blade profile to harness drag force in addition to lift force. The modified blade profile retains the original crescent shape while enhancing its design. For data validation, two models were created: the conventional Gorlov turbine and a modified version. Laboratory-scale tests were conducted using a water pump to simulate flow in an artificial channel, with water speeds ranging from 0.185 m/s to 0.225 m/s. Correlation regression analysis was employed to evaluate the experimental results and strengthen the reliability of the findings. The results indicate a correlation between changes in water flow speed and increases in turbine rotation, turbine torque, torque coefficient, and power coefficient. Specifically, the conventional Gorlov turbine exhibited an average torque of 0.014 Nm, a torque coefficient of 0.0209, and a power coefficient of 0.32. In contrast, the modified Gorlov turbine demonstrated an average torque of 0.016 Nm, a torque coefficient of 0.239, and a power coefficient of 0.308.
Comparative effectiveness of microsurgery and endoscopic surgery in lumbar disc herniation: A systematic review and meta-analysis Arifin, Jainal; Gani, Karina Sylvana; Kennedy, Dave
Narra J Vol. 5 No. 1 (2025): April 2025
Publisher : Narra Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52225/narra.v5i1.1214

Abstract

Lumbar disc herniation, a common degenerative disc disease, adversely affects quality of life and often necessitates surgical intervention. Microsurgery and endoscopic surgery have emerged as alternatives to traditional open surgery, offering reduced pain and shorter recovery times. The aim of this study was to compare the outcomes of microsurgery and endoscopic surgery for lumbar disc herniation, evaluating effectiveness, safety, and patient-reported outcomes. A systematic search was conducted across six databases (EBSCOhost, OVID, ScienceDirect, Scopus, PubMed, and Cochrane) using terms related to lumbar disc herniation, spine injury, minimally invasive biportal endoscopic spine surgery, and conventional microscopic discectomy. The risk of bias was assessed using the Newcastle-Ottawa Scale (NOS), and a random-effects meta-analysis calculated mean differences (MD) and 95% confidence intervals (CI). Among the 267 studies screened, two studies met the inclusion criteria for a meta-analysis assessing the functional outcomes and safety of microsurgery and endoscopic surgery in patients with spinal disorders. The meta-analysis indicated that patients who received microscopic surgery had no significant difference in terms of operation time (MD: 3.48; 95%CI: -14.74 –21.70; p=0.71; I²=90%), postoperative drainage (MD: 16.28; 95%CI: -2.33–34.89; p=0.09; I²=47%), postoperative length of stay (MD: -1.26; 95%CI: -2.52–0.00; p=0.05; I²=77%), and postoperative C-reactive protein (CRP) levels (MD: -13.49; 95%CI: -36.85–9.87; p=0.26; I²= 97%) compared to those treated with endoscopic surgery. In conclusion, microscopic surgery and endoscopic surgery yield similar outcomes in terms of operation time, postoperative drainage, postoperative length of stay, and postoperative CRP levels. Therefore, the choice of techniques should be guided by patient-specific factors, surgeon expertise, and the facilities available at the healthcare center.
Pelatihan Dan Pembuatan Pupur Babigi Gelinggang Kelor Bersama Ibu – Ibu Di Desa Kalahang Kabupaten Tabalong Herlina, Firda; Adawiah, Robiatul; Trianiza, Ice; Panca, Yuli; Wiramsya Oscar, Agus; Rahman, Faisal; Hazairin; Arifin, Jainal; Mujiburahman
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 9 : Oktober (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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

Abstract

Indonesia has abundant biodiversity, yet its utilization is still limited to traditional consumption and has not been widely developed into economically valuable products. The leaves of galingale (Cassia alata) contain flavonoids, alkaloids, and tannins that are beneficial as antibacterials and antifungals, while the moringa leaves (Moringa oleifera) are rich in antioxidants, vitamins, and minerals beneficial for skin health. One local wisdom of the Kalimantan community is the pupur babigi, a traditional powder made from natural ingredients, which is now being abandoned due to the influx of modern cosmetic products. This community service activity aims to: (1) increase public knowledge about the contents and benefits of galingale and moringa leaves, (2) train the community in making pupur babigi, and (3) encourage the creation of micro-enterprises based on herbal products. The methods include preparation, socialization, practical training, mentoring, and evaluation, involving 25 participants (housewives and youth from the community). The results show an increase in participants' understanding from 20% (pre-training) to 85% (post-training). All participants were able to produce pupur babigi of good quality, and 80% expressed interest in developing the product as a business. In addition to skills transfer, this activity also raised collective awareness about the importance of utilizing local natural resources for economic empowerment.
Analisis Pengaruh Kalori Batubara dan Excess Air Pada Boiler CFB Dengan Metode CFD (Ansys) Erwald Mataufani, Caesariski; Sidiq, Abdurahim; Arifin, Jainal
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 6 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v6i1.13930

Abstract

The Pulang Pisau Steam Power Plant (PLTU) uses a CFB type boiler with a coal consumption of 4,054-5,260 kCal/kg. This research was carried out by modeling the CFB type boiler used in the Pulang Pisau PLTU using Autodesk Inventor 2021 then for the iteration process using Ansys Fluent 2022 R2, the excess air variation used is 5%, 10%, 15%, 20%, and 25%. Based on the results of iteration using Ansys Fluent 2022 R2 with 4,054-5,260 kCal/kg calorie coal, for the addition of 5% excess air, the temperature at the outlet furnace is 2,199°C, for the addition of 10% excess air, the temperature at the outlet furnace is 2,195°C , for the addition of 15% excess air, the temperature at the outlet furnace is 1,960°C, for the addition of 20% excess air, the temperature at the outlet furnace is 1,910°C, for the addition of 25% excess air, the temperature at the outlet furnace is 1,855°C, then it can be concluded that the final temperature at the boiler furnace outlet is still far from the set target of 840-850°C. Where the lowest temperature is at 25% excess air with a value of 1855°C. So it can be concluded that the best excess air requirement and that is closest to the target is 25% excess air.
Co-Authors Ahmad MAULANA Amin, Ahmadil Biakto, Karya T. Erwald Mataufani, Caesariski Faisal Rahman, Faisal Firda Herlina Gani, Karina Sylvana Hartadi, Budi Hazairin Iman, Hendi Cahya Irfansyah, Muhammad Kennedy, Dave Kusmawan, I GPY. Massi, Muhammad N. Muhammad Firman Mujiburahman Panca, Yuli Pauzan, Muhammad Rendi Rendi Rendi, Rendi Robiatul Adawiah, Robiatul Sidiq, Abdurahim Trianiza, Ice Usman, Muhammad A. Wiramsya Oscar, Agus