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Nur Robbi
Universitas Islam Malang
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Journal : ring mechanical engineering

 1 
PENGARUH PENCAMPURAN TERPENTIN dengan CPO (CRUDE PALM OIL) terhadap PEMBAKARAN DOUBLE DROPLET Khalim, M. Nur; Marlina, Ena; Robbi, Nur
RING ME Vol 2 No 1 (2022)
Publisher : Universitas Islam Malang

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Abstract

ABSTRACTCrude Palm Oil (CPO) is a vegetable oil that has the potential to be developed into biodiesel, but if applied directly CPO can damage the engine due to its high viscosity. Turpentine is one of the bio additives that can be used to lower the viscosity of vegetable oils. In this study, CPO was mixed with turpentine to reflect its viscosity. The method used in this study is  true experimental research using double droplet combustion. In this study, there were three samples used, namely 100% CPO (pure CPO), 90% CPO (90% CPO + 10% turpentine), and 85% CPO (85% CPO + 15% turpentine). From this study, the highest temperature at 85% CPO was obtained at 674.1 oC.  The fastest burning rate at CPO is 90% with a burning rate of 0 – 0.966 s on chanel 1 and 0 – 0.966 s on chanel 2.  Meanwhile, the highest height in CPO is 85% with 21.41 mm and the highest fire width in CPO is 85% at 6.1 mm. from the research data, it can be concluded that the addition of terpenti is proven to reduce and improve the combustion quality of CPO droplets. Keywords : Biodiesel, CPO, Bio additive, Turpentine ABSTRAKCrude Palm Oil (CPO) merupakan minyak nabati yang sangat potensial untuk dikembangkan menjadi biodiesel, tapi jika diterapkan secara langsung  CPO  dapat merusak mesin karena viskositasnya yang tinggi. Terpentin merupakan salah satu bio aditif yang dapat digunakan menurunkan viskositas dari minyak nabati. Dalam penelitian ini CPO dicampur dengan terpentin untuk menerunkan viskositasnya. Metode yang digunakan dalam penelitian ini adalah eksperimental nyata (true experimental research) dengan menggunakan pembakaran double droplet. Dalam penilitian ini terdapat tiga sampel yang digunakan yaitu CPO 100% (CPO murni), CPO 90% (90% CPO + 10% terpentin), dan CPO 85% (85% CPO + 15% terpentin). Dari penelitian ini diperoleh temperatur tertinggi pada CPO 85% sebesar 674,1 oC. Burning rate tercepat pada CPO 90% dengan laju pembakaran selama 0 – 0,966 s pada chanel 1 dan 0 – 0,966 s pada chanel 2. Sedangkan tinggi tertinggi pada CPO 85% dengan 21,41 mm dan lebar api tertinggi pada CPO 85% denag 6,1 mm. dari data penelitian tersebut dapat disimpulkan bahwa penambahan terpenti terbukti dapat menurunkan dan memperbaiki kualitas pembakaran droplet CPO. Kata Kunci: Biodiesel, CPO, Bio aditif, Terpentin 
PENGARUH PENAMBAHAN MINYAK TERPENTIN terhadap KARAKTERISTIK PEMBAKARAN DROPLET MINYAK KELAPA sebagai BAHAN BAKAR BIODIESEL Silvia, Linda; Marlina, Ena; Robbi, Nur
RING ME Vol 2 No 1 (2022)
Publisher : Universitas Islam Malang

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ABSTRAKBiodieselminyak nabati yang ramah lingkungan dapat menggantikan permintaan bahan bakar diesel yang terus meningkat. Salah satu minyak nabati yang dapat digunakan sebagai bahan bakar alternatif adalah minyak kelapa (CCO). Titik nyala pada CCO lebih rendah daripada solar dan nilai kalor biodiesel CCO setara dengan nilai kalor solar. Viskositas minyak nabati yang tinggi mengakibatkan proses penguapan lama dan kerusakan pada mesin. Pencampuran CCO dan minyak terpentin adalah kombinasi bahan bakar dengan viskositas rendah dengan nilai kalor yang sebanding dengan solar. Beberapa campuran yang diteliti yaitu, CCO 100%, CCO 90% dan CCO 85%. Metode penelitian ini yaitu pengujian tetesan double droplet di dalam ruang bakar. Hasil penelitian menunjukkan penambahan minyak terpentin pada CCO mempengaruhi karakteristik pembakaran yang meliputi temperatur yang meningkat, laju pembakaran yang lebih cepat dan memperbesar dimensi api yaitu tinggi api dan lebar api. Terdapat microexplosion yang mengakibatkan pembakaran lebih sempurna karena pada saat proses pembakaran droplet dapat habis terbakar.  Kata Kunci: Biodiesel; double droplet; CCO; minyak terpentin ABSTRACTEco-friendly vegetable oil biodiesel can replace the increasing demand for diesel fuel. One of the vegetable oils that can be used as an alternative fuel is coconut oil (CCO). The flash point of CCO is lower than that of diesel and the calorific value of CCO biodiesel is equivalent to the calorific value of diesel. Viscosity high vegetable oil results in a long evaporation process and damage to the engine. Blending CCO and turpentine oil is a combination of low-viscosity fuels with calorific value comparable to that of diesel. Some of the mixtures studied were 100% CCO, 90% CCO and 85% CCO. The method of this research is the double droplet test in the combustion chamber. The results showed that the addition of turpentine oil to CCO affected the combustion characteristics which included an increased temperature, a faster combustion rate and an increase in the dimensions of the fire, namely flame height and flame width. There is a microexplosion which results in more complete combustion because during the combustion process the droplets can burn out. Keywords: Biodiesel; double droplet; CCO; turpentine oil
Perancangan Desain Mesin Penyuir Daging Ikan Tongkol Kapasitas 10kg wadud, ach; Nur Robbi; Mochammad Basjir
RING ME Vol 2 No 2 (2022): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v2i2.19914

Abstract

Shredder is the process of tearing or destroying fish evenly and to obtain the desired result. In general, people do the shredding manually which of course takes a very long time, therefore it is necessary to have a solution for making a meat shredding machine that is able to shred quickly and with very good results. The process of shredding fish meat is carried out with a set of rotating knives so that the material to be processed will quickly change its shape from intact to fine shreds. In planning this design using 25 blades, one knife with two blades has a distance of 10 mm to the last blade, and this machine has a capacity of 10 kg with frame dimensions of 65 x 38 x 64 cm, capable of being driven by an electric motor with a power of 2 hp, with a blade shaft rotation of 710 rpm.
Pengaruh Variasi Suhu pada Proses Pirolisis Sampah Plastik LDPE sebagai Bahan Bakar Alternatif A’la, Ahmad fudloilul; Margianto; Nur Robbi
RING ME Vol 2 No 2 (2022): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v2i2.19918

Abstract

Metode pirolisis merupakan beberapa teknik pengerjaan limbah saat dicerna. Tujuan percobaan ini adalah melakukan sampah plastik sebagai bahan bakar pirolisis. Jenis sampah plastik LDPE yang digunakan dalam penelitian ini adalah variabel, dan masing-masing percobaan dijalankan selama 15 menit pada suhu 100°C, 200°C, dan 300°C. Penelitian dengan variasi suhu sampel a menghasilkan minyak berwarna kuning dengan nilai kalor 10230kkl/kg nilai masa jenis 0,6 kg/m3 nilai viskositas0,40cp dan jumlah volume 20ml, sampel b menghasilkan minyak berwarnacoklat keruh dengan nilai kalor 9411,6kkl/kg nilai masa jenis 0,63 kg/m3 nilai viskositas0,58cp dan jumlah volume 38ml, sampel c menghasilakn minyak berwarna coklat jernih dengan nilai kalor 9002,4kkl/kg nilai masa jenis 0,65 kg/m3 nilai viskositas0,55cp dan jumlah volume 40ml. minyak terbaik dihasilkan pada suhu 100°C  yang memiliki nilai hampir sama dengan bahan bakar alternatif yaitu dengan nilai kalor 10230kkal/kg. Karena nilai kalornya, produk pirolisis dapat berfungsi sebagai pengganti bahan bakar konvensional
Analisis Pengerollan dengan Sistem Hidrolik pada Mesin Roll Bending Portable Vandu Ramadhan, Cheraldy; Margianto; Nur Robbi
RING ME Vol 2 No 2 (2022): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v2i2.19938

Abstract

Mesin bending portable dengan sistem hidrolik adalah alat yang digunakan untuk proses pembentukan plat dengan menekan benda kerja hingga mengalami perubahan bentuk yang menimbulkan tekukan logam pada sekitar daerah garis netral. Pada analisis pengerolan mesin bending dilakukan analisis pemilihan material yang pas guna memenuhi kemampuan mesin yang digunakan untuk pengerolan plat besi. Variable material yang dipakai pada analisis ialah : plat besi ST37 dengan ketebalan 3mm, 5mm, dan 8mm serta dengan panjang 560mm dan lebar 50mm. Hasil dari analisis pengerolan pada mesin roll bending portable, pengerolan plat ST37 diperlukan gaya tekan 2014,66 N/mm2 dengan ketebalan 3mm, 9374,9 N/mm2 dengan ketebalan 5mm dan 8mm 38399,94 N/mm2 dengan ketebalan 8mm. Tekanan hidrolik yang diperlukan didapatkan plat besi ketebalan 3mm dengan nilai 7401,36N, 5mm dengan nilai 12335N dan 8mm dengan dengan nilai 19737,54N
PENGARUH MODIFIKASI KARBURATOR MENJADI INJEKSI TERHADAP KINERJA MESIN PADA MOTOR KLX 150 Saputra, Mochammad Riza; Margianto; Nur Robbi
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20318

Abstract

The need for comunity mobility to be able lo move from one place to another is increasing. Until now, the process of mixing air with gasoline in gasoline engines can be grauped into 2, namely the conventional system using a carburetor and the injection system. This study aims to compare engine performance based on fuel comsumption from engine that were originally convetional technology and then modified to the injection type. The methodology used is true experimental, with an analysis of variance model. From the research result, the power carburetor system at 10,000 rpm reaches 15.91 hp, and fuel consumption is 0.0334 kg/hp.hour, the efficiency is 0.4275%, while the injection system at 10,000 rpm reaches 17.82 hp, fuel consumption 0.0241 kg/hp.hour and 0.5924% efficiency. So that it can be concluded that the carburetor system lacks engine performance and burns a lot of wasted heat rafter than turning it into energy. The fogging injection system is more economical than the carburetor fogging system, it is evident in each test that the injection fogging system consumes less in every one working cycel.
Analisis Performa Pembangkit Listrik Panas Matahari Menggunakan Generator Termoelektrik Abdurrasyid, Faris; Margianto; Nur Robbi
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20319

Abstract

In Indonesia, non-renewable fossil fuels are used to produce electrical energy which has the potential to impact the environment. Renewable energy is needed as an energy source to reduce consumption of fossil fuels. Solar thermal is one of the abundant energy sources in Indonesia, and thermoelectric generators can be used to make use of it. A thermoelectric generator can generate electricity from the sun's abundant heat energy and does not damage the environment by using a solar collector on the hot side and a heatsink on the cold side. This study aims to determine the performance of thermoelectric generators, heatsinks, solar collectors and the overall efficiency of the device. The findings of this study indicate that the energy output obtained by the collector due to variations in the sun affects the efficiency of the solar collector on the hot side of the thermoelectric generator. The efficiency of a heatsink located on the cold side of a thermoelectric generator is inversely proportional to its base heat value. The value of the temperature difference on the hot and cold sides of the thermoelectric generator fluctuates, which affects the efficiency value of the thermoelectric generator, while the useful energy and power produced by the thermoelectric generator can affect the efficiency of the system as a whole.
PENAMBAHAN OCTANE BOOSTER PADA PERTALITE TERHADAP KINERJA MESIN DAN KONSUMSI BAHAN BAKAR MESIN HONDA BEAT 2014 Yudan Kurniawan, Mohammad; Margianto; Nur Robbi
RING ME Vol 3 No 1 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i1.20320

Abstract

The purpose of this study was to evaluate the effect of adding Pertalite to fuel on engine performance and fuel consumption of Honda Beat 2014 motorcycle engines. This study used three octane booster mixtures to examine the effect of mixtures added to Pertalite fuel on engine performance of the Honda Beat 2014 In addition, the addition of an octane booster also increases fuel consumption efficiency which significantly reduces the amount of fuel consumed by the engine and produces environmentally friendly emissions when the number of octane boosters increases. Based on these findings, it was concluded that the use of Pertalite octane accelerator fuel could improve the engine performance of the Honda Beat 2014 motorcycle and reduce fuel consumption. Therefore, using an octane booster can be an attractive option for Honda Beat 2014 motorcycle owners who want to improve engine performance, optimize fuel economy, but produce emissions that are not environmentally friendly.
PERBANDINGAN BUSI IRIDIUM dan BUSI STANDAR terhadap DAYA SEPEDA MOTOR SCOOPY 110 cc TAHUN 2023: COMPARISON OF IRIDIUM SPARK PLUG AND STANDARD POWER PLUG 110 cc SCOOPY MOTORCYCLE IN 2023 Maulana Azkiya; Margianto; Nur Robbi
RING ME Vol 3 No 2 (2023): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rm.v3i2.21512

Abstract

The ignition system is an important component in a gasoline engine that ensures motor operation.Its function is to produce a spark using an ignition coil, which is then channeled to the spark plugvia a high-strength cable to burn the fuel mixture that has been compressed in the cylinder. Thisstudy used a dynamometer to test engine performance with varying RPM (4000, 6000, and 8000)in each trial 3 times. The research results show that the use of iridium spark plugs on the 2023Scoopy 110 cc motorbike results in an increase in engine power. More wear-resistant iridiumelectrodes provide a stronger and more stable spark, optimize fuel combustion and increaseoverall engine power. Combustion efficiency, especially fuel consumption, is also increased by theuse of iridium spark plugs. Thin iridium electrodes provide a stronger and more stable sparkthereby increasing the efficiency of fuel combustion in the combustion chamber. These findingsconfirm that the use of iridium spark plugs brings significant benefits in terms of increasing enginepower, responsiveness, fuel consumption and vehicle engine reliability. Therefore, it isrecommended to consider the use of iridium spark plugs as an effective and efficient option toimprove vehicle performance.
ANALISIS NILAI OVERALL EQUIPMENT EFFECTIVENESS PADA MESIN PACKER FOCKE FX 2 DI PT ABC Reditya Chiesa Ramadhan; Unung Lesmanah; Mochammad Basjir; Nur Robbi; Rangga Ega Santoso
RING ME Vol 5 No 1 (2025): RING Mechanical Engineering
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/rme.v5i1.23696

Abstract

This study carried out to overcome the performance and efficiency problems of the Packer Focke FX 2 machine at PT. ABC. The study uses descriptive quantitatie approach to analyze Overall Equipment Efetiveness (OEE) value. The resultof OEE value is analyzed by Six Big Losses method to find the losses factors and used the failure mode Effect Analysis (FMEA) method with fishbone diagram to find its root causes and provide suggestion for improvement. The result of the study is OEE value from the period of June 2024 to Ugust 2024, which was 43,4 %. This result is lower than the world standart OEE of 85 %. These result are caused by high value of idling and minor stoppage losses at 15,84% and breakdown losses at 13,46%. The root of problems was found using FMEA method with RPN value of 288, which is failure in blank feeding process with type of failure mode is blank material jamming in blank track area because of spray glue jet was not function optimally. So that, the recommendation of improvements that are given are related to preventive method, spare part management, and employee competency
Co-Authors A ridhoni Al-Hikmani Abdul Wahab Abdurrasyid, Faris Ach.Iqmal Herdiansyah Adi Rachmat Setya Utama Agustina Ainurosida Al-Fattah, Muhammad Kurnia Gusti Apriiliyanto, Tito Dwi Aziz, Achmad Ridwan Abdul A’la, Ahmad fudloilul Bagas Putro Bambang Minto Basuki Basjir, Mochammad Chotibul Umam Assalafy Cynthia Permata Dewi Denny Widyanuriyawan Dimas Wibisono Ena Marlina Ghayatri, Niken Arum Hartono, Priagung Iftita Khumairo Ismi Choirotin Isnaini Roicha Mudyanti Jamaludin Kafi Khalim, M. Nur Kresna Agung Yudhistira Kusuma, Tris Tiyo Arinda Lina Mutmainnah Linda Silvia, Linda Lutfi M. Kastalani M. Yuliardiansyah Akbar W. Machrus Ferdian Mahdi, Riadlus Al Mardiani, Eki Margianto Maulana Azkiya Mohammad Miftahul Anwar Muhammad Email Ramadhan Muhammad Iqbal Pratama Muhammad Taufiq Mustafid, Sholikul Naufal, Maulana Igo Athief Prawiro, Bimo Anggoro Priyagung Hartono Putri, Vera Eselia Rangga Ega Santoso Reditya Chiesa Ramadhan Rizky Hanandhita Pratama Saputra, Mochammad Riza Sari, Mita Rovita Siti Nur Azizah, Siti Nur Slamet Wahyudi Suhartini Suhartini - Suhartini Suhartini Toni Eko Prasetyo Treza Ghassani Unung Lesmanah Unung Lesmanah Vandu Ramadhan, Cheraldy wadud, ach Yazirin, Cepi Yudan Kurniawan, Mohammad