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R.E.M (Rekyasa Energi Manufaktur) Jurnal
Published by Universitas Muhammadiyah Sidoarjo
ISSN : 25275674     EISSN : 25283723     DOI : https://doi.org/10.21070/r.e.m
Core Subject : Engineering,
Engineering
Focus and Scope Aim: to facilitate scholar, researchers, and teachers for publishing the original articles of review articles. Scope: Mechanical Engineering include: Energy Conversion Renewable Energy Manufacturing Materials and Design Engineering Mechatronics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 155 Documents
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Design and Optimization of Vertical Axis Wind Turbines Combination of Darius Type and Savonius Type to Increase the Efficiency of Renewable Energy Source Power Generation: Desain dan Optimasi Turbin Angin Sumbu Vertikal Kombinasi Type Darius dan Type Savonius untuk Meningkatkan Efesiensi Pembangkit Listrik Sumber Energi Terbarukan Hardi, Witono; Umron, Amat; Hartono, Rudi; Syafar, M. Yusril
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i1.1693

Abstract

Penelitian ini bertujuan melakukan optimasi kinerja turbin savonius dan darius dengan menggabungkan kedua sifat turbin yang menguntungkan untuk mendapatkan efisiensi optimum. Penelitian dilakukan dengan membuat purwarupa turbin angin sumbu vertical darius-savonius dengan ukuran tinggi 30 cm dan diameter 25 cm, airfoil NACA 0020. Pengujian dilakukan dengan mencatat putaran turbin dengan tachometer dan mengukur arus – tegangan dynamo untuk mendapatkan daya turbin. Kemudian dilakukan penggabungan turbin pada satu poros yang sama dan dilakukan pengujian kecepatan putar serta daya yang dihasilkan. Hasil penelitian menunjukkan desain turbin angin hybrid savonius-darrieus optimum adalah pada tinggi bilah savonius 12 cm, yaitu memiliki daya turbin sebesar 0,42 Watt, dengan putaran poros turbin 550,92 rpm dan rasio kecepatan ujung (tip speed ratio) sebesar 1,18, serta efisiensi turbin sebesar 2,6%. Turbin jenis ini mempunyai waktu self starting 4,75 detik apabila tertiup angin dengan kecepatan rata-rata 7,3 m/s dan untuk menuju ke putaran konstan memerlukan waktu 18,94 detik.
Effect of Adding Load on Solar Powered Thermoelectric Cooling Systems: Pengaruh Penambahan Beban pada Sistem Pendingin Termoelektrik Bertenaga Surya Ar Rasyid, Arif Fikry; Rifky
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i1.1694

Abstract

Salah satu potensi energi terbarukan yang semakin populer penggunaanya adalah modul surya. Dalam upaya memanfaatkan energi surya dapat digunakan pada perangkat termoelektrik. Modul pendingin termoelektrik dimanfaatkan untuk kotak pendingin yang dapat menyimpan aneka makanan dan minuman. Penelitian ini bertujuan untuk mendapatkan temperatur terendah yang dicapai beban pendingin objek berupa air kemasan 600 ml dengan menggunakan modul TEC1-12706. Pengujian dilakukan pada kotak pendingin tanpa beban dan pakai beban selama tiga hari dimulai pukul 09.00 hingga pukul 14.00 WIB. Parameter yang diukur adalah intesitas cahaya, kecepatan angin, temperatur modul surya, temperatur lingkungan, temperatur dinding luar kotak, temperatur termoelektrik, temperatur ruang pendingin, temperatur air kemasan 600 ml, tegangan, dan arus. Hasil pengujian dicapai temperatur terendah pada hari ketiga dengan temperatur ruang pendingin pakai beban sebesar 20,1℃, 18,6℃ tanpa beban, dan temperatur akhir air sebesar 20,7℃. Koefisien kinerja sistem pendingin pakai beban pendinginan diperoleh sebesar 1,305 dan tanpa beban pendinginan sebesar 1,572.
Analysis of Damage and Repairs to the Transmission Part of the Komatsu Type GD825-2 Grader Unit Wilarso, Wilarso; Bayu Idiyanto; Awang Surya; Hilman Sholih
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i1.1698

Abstract

The Plant Rebuild Center, owned by PT. X, must raise quality to meet customer expectations and fulfill field needs. According to customer warranty claims in 2022, oil leaks in the transmission control valves of GD825-2 type units—11 in total—are the most common cause. This research's operational goal is to identify the source of the most damage to transmission components, particularly in Komatsu GD 825-2 units, so that corrective action may be taken and the effects can be monitored. At PT X's Plant Rebuild Center, corrective measures were implemented and standard operating procedures were created to serve as a guide for rebuilding Komatsu GD 825-2 unit transmission components. The analytical approach applies five why analyses. The findings show that oil leaks in the transmission control valve are the most common cause of damage. The engineering techniques used to achieve this improvement included duplicating the sleeve using the manufacturer's standard reference and altering the o-ring seat height during the semi-finishing stage before measuring and cutting during the finishing process. This resulted in the surfaces of the sleeve and transmission housing being identical. Work Instructions (INK) for installing the GD825-2 unit transmission control valve and a Checksheet for the GD825-2 type Grader unit transmission assembly have been developed as Standard Operating Procedures (SOPs)
Efficiency of Curing Oven in Increasing Powder Maturity in Powder Coating Process in Aluminum Extrusion Plant: Efisiensi Oven Curing dalam Meningkatkan Kematangan Powder dalam Proses Powder Coating pada Pabrik Aluminium Ekstrusi Pratama, Rendi Adi; Saputro, Wiliandi; Nurmawati, Ardika; Sunarti, A. R. Yelvia; Adi Saputro, Erwan
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.v9i2.1702

Abstract

Powder coating adalah proses pelapisan logam dengan menaburkan serbuk pelapisan di atas benda yang dipanaskan, untuk meningkatkan kekuatan dan ketahanan permukaan. Oven curing digunakan untuk pematangan powder dengan udara panas dari burner. Bahan yang diperlukan adalah serbuk powder coating, profil alumunium, dan LNG. Analisa efisiensi menggunakan perhitungan neraca panas, melibatkan data seperti temperatur udara masuk/keluar, temperatur dinding, laju udara masuk, dan luas oven curing. Nilai efisiensi oven curing pada proses powder coating dihitung dari panas yang bersumber dari burner (2771,746 W), panas yang diserap oven curing (3464,683 W), dan panas yang keluar/hilang (692,936559 W), menghasilkan efisiensi sebesar 75%.
Design and Strength Analysis of Ladder Models Frame with AISI 1015 1018 1020 Steel: Desain dan Analisis Kekuatan Ladder Frame dengan Bahan Baja AISI 1015 1018 1020 Wahyudi, Irfan Sholeh; Kosjoko; Mufarida, Nely Ana
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.v9i2.1703

Abstract

Sport Utility Vehicle Chassis Design. This design/research is about the design and analysis of Sport Utility Vehicles. A car's vehicle frame is the most important component of a car's transportation system. This chassis is designed to withstand the load borne by passengers and other loads. Because they are so heavy, the rigidity of the frame and the materials used to make it must be taken into account during the process of making components suitable for the load. Because the Ladder Frame chassis is known to be strong. The materials used are AISI 1015, AISI 1018 and AISI 1020 steel for validation of calculations. The results show that the stress value is 0.00002013 mm. Strain 0.000008446 mm. Placement 0.007189 mm. and the chassis safety factor is at a safe value of 0.00000004657 mm, with a load of 650 Kg. The results obtained were that the center of mass of the chassis was more rigid with AISI 108 Steel based on Solidworks software. Then the chassis is more resilient and strong and it can be concluded that this design is safe, feasible and meets the criteria for the materials used.
Analysis of the Strength Thorn Pandan Leaves Fiber Composite: Woven Vs Random Fibers Lani; Fuazen; Eko Julianto; Muhammad Iwan; Eko Sarwono; Gunarto
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

Abstract

This study focuses on assessing a composite material that uses pearly leaf reinforcement and a polyester resin matrix as a construction material for energy-efficient automobile bodies. The traction strength test and impact resistance test of thorn panda leaf fiber are conducted to evaluate the difference in fiber direction, namely induced and random. This discovery is anticipated to be advantageous for the development of energy-efficient automobile bodywork. The highest traction force recorded is 2199.63 MPa in the random fiber direction, whereas the lowest traction strength is 2077.43 MPa in the fiber direction. The pulling force increases when the direction of the fiber aligns with the pulling manner, resulting in more force. The impact's greatest absorbent energy strength is 0.623 j in the direction of the fiber, while the least absorbent energy strength is 0.595 j in the direction of the random fiber.
Prototype Energy Saving Car Chassis Design and Analysis Using 6061 Aluminum Material : Perancangan Desain dan Analisa Chassis Mobil Hemat Energi Tipe Prototype dengan Material Aluminium 6061 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.
Evaluation of AUG-WID-R01 Spring Test Equipment: Evaluasi Alat Uji Pegas AUG-WID-R01 Prasetia, Adhita; Martoni
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.v9i2.1709

Abstract

Sepeda Motor Sesuai fungsinya sebagai alat transportasi ringan kendaraan bermotor harus memenuhi standar desain keselamatan dan keamanan bagi penggunanya, shock absorber merupakan komponen yang didesain untuk meredam getaran akibat guncangan. Tujuan dari penelitian ini adalah (1) menghitung nilai koefisien pegas pada sepeda motor (2) menghitung simpanan hasil perhitungan dan pengujian. Dalam penelitian ini menggunakan metode Desain Eksperimen yaitu melakukan pengujian untuk mendapatkan data selanjutnya mengolahnya menggunakan teori getaran bebas, dan mengitung nilai k & simpangan menggunakan teori. Dari hasil penelitian dan analisis yang dilakukan dapat diperoleh karakteristik pengaruh getaran. Berdasarkan hasil perhitungan, nilai k pada pegas diperkirakan sebesar ± 18 KN/m dan simpangan maksimum ± 12 cm. (2) Berdasarkan hasil pengujian nilai k pada pegas dihasilkan ± 24,6 KN/m dan simpangan maksimum ± 4,0 cm
Performance Improvement of TEC Cooling System in Solar Powered Cooling Box Using NaCl-H2O Eutectic Solution PCM: Peningkatan Kinerja Sistem Pendingin TEC pada Kotak Pendingin Bertenaga Surya Menggunakan PCM Larutan Eutektik NaCl-H2O Acep Saputra; Rifky; Ade Irza Fahrezi; Muhammad Imam Sobirin; Dimas Priyuko Tri Asmoro
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.v9i2.1710

Abstract

Energi matahari adalah sumber energi yang selalu tersedia, tidak menimbulkan polusi dan tidak merusak lingkungan. Penggunaan perangkat sistem pendingin saat ini masih menggunakan refrigeran. Kekurangan yang dimiliki refrigeran yaitu menggunkan bahan yang sifatnya menimbulkan efek buruk terhadap lingkungan. Penelitian ini memberikan solusi alternatif untuk permasalahan lingkungan yang disebabkan penggunan sistem pendingin refrigeran, yaitu sistem pendingin termoelektrik bertenaga surya dengan PCM larutan eutektik NaCl-H2O. penelitian ini bertujuan untuk mengetahui pengaruh larutan eutektik NaCl-H2O untuk meningkatkan kinerja sistem pendingin pada kotak pendingin. Sistem ini menggunakan dua modul TEC, heatsink, dan kipas untuk mengoptimalkan pembuangan panas dan pemerataan suhu pada kotak pendingin. Hasil pengujian menunjukan bahwa penggunaan PCM dengan 5% NaCl dalam sistem pendingin menghasilkan temperature ruang terendah sebesar 17,2℃, dan koefisien kinerja tertinggi sebesar 0,031. Semakin tinggi konsentrasi NaCl dalam larutan H2O meningkatkan nilai konduktivitas termal dan menurunkan titik beku, sehingga mempengaruhi temperatur minimum dan meningkatkan koefisien kinerja sistem pendingin
Analysis of Water Distribution in Building A in Widyatama University Environment: Analisis Distribusi Air Gedung A di Lingkungan Universitas Widyatama Suryaman, Nia Nuraeni; Komarudin, Udin; Martoni; Prasetia, Adhita; Santoso, Heru; Fahruddin, A'rasy
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.v9i2.1711

Abstract

The need for clean water increases every year, while the means to provide clean water require planning. The importance of water in the realm of education is comparable to that of household needs. Water on the 3rd and 4th floors of Building A often doesn't flow. The aim of this research is to identify the root cause of the insufficient water flow on the 3rd and 4th floors of Widyatama University Building A, and to devise a solution for the water flow distribution system. The research employs a variety of methods, including literature review, data collection, data analysis, results analysis, and interpretation. The conclusion is that the water drainage on the 3rd and 4th floors is 0.612 L/s and 0.510 L/s, which is below the standard (0.9–2 L/s). The drainage of water in the main pipe was uncertain based on its diameter. The solution to this problem is to install booster pumps on the 3rd and 4th floors. The next solution is to change the main pipe diameter to 1 1⁄4".

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