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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Sains dan Teknologi Komunikasi Fisika Indonesia Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Rekayasa Mesin Sinergi REKAYASA Jurnal Pengabdian UntukMu NegeRI JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Turbo : Jurnal Program Studi Teknik Mesin AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat JTM-ITI (Jurnal Teknik Mesin ITI) Dinamisia: Jurnal Pengabdian Kepada Masyarakat JURNAL PHOTON Ketenagalistrikan dan Energi Terbarukan Jurnal Teknik Mesin Cakram Jurnal Teknik Mesin Indonesia Piston: Journal of Technical Engineering Jurnal Engine: Energi, Manufaktur, dan Material International Journal of Electrical, Energy and Power System Engineering (IJEEPSE) Teknomekanik Journal of Electrical Engineering and Computer (JEECOM) Journal of Applied Materials and Technology Jurnal Teknik Mesin Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Makara Journal of Technology Proksima BATOBO: Jurnal Pengabdian Kepada Masyarakat
Awaludin Martin
Universitas Riau
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry 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 Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Social Sciences Transportation Other

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Design of Air Blast Freezing System Using Cascade Refrigeration R290/R32 System with Capacity 5kg Martin, Awaludin; Nasution, Fikri Fahlevi; Mainil, Rahmat Iman
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 68 No 1 (2024): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v68i1.359

Abstract

Indonesia is a maritime country that has an abundance of marine catches. In 2022, the production of marine catches reached 24.85 millions tons, while the export amount was 1.221 millions tons. This is due to the limited technology that can extend the freshness of marine catches. Based on this problem, a cooling system was designed in the form of an ABF that can freeze marine catch products. The Air Blast Freezing (ABF) system is designed at an air temperature of -40oC using a cascade refrigeration system. The working fluid used is R290/R32 hydrocarbon, which has very low GWP and ODP so it is safe for the environment and the earth's ozone layer. The results obtained show that the cooling load is 444.037 Watts, the LTC compressor power and HTC compressor power are 116.19 Watts and 205.98 watts. The designed air blast freezing system has a surface area of LTC evaporator of 2.670 m2 and HTC condenser of 4.780 m2. The calculated capillary pipe length is 1.94 m for HTC and 1.51 m for LTC, the COP of the ABF system is 2.774.
Energy Management and Audit of the Lighting and Air Conditioning System at the Teratak Buluh Grand Mosque, Pekanbaru City Nasution, Fikri Fahlevi; Khotimah, Nur; Martin, Awaludin; Sihombing, Tikkos
Proksima Vol 2 No 1 (2024): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/proksima.v2i1.17

Abstract

Energy management and audits are important steps in improving a building's energy efficiency. Mosques, as centers of religious and social activities, often have significant energy requirements. The research methods used include field observations at the Teratak Buluh Grand Mosque, measuring energy consumption, and recommendations for saving energy use. The research results show that mosques have the potential for significant energy savings with recommendations for energy conservation opportunities that can be implemented by reducing the number of lamps used and the number of air conditioners. Previously, electrical power consumption at the Teratak Buluh Grand Mosque was 74,480.40 kWh/year with electricity costs reaching IDR 68,894,370/year. Meanwhile, electrical power usage after energy conservation opportunities (ECO) is 41,918.40 kWh/year with electricity costs of IDR 38,774,520/year, with an energy consumption intensity (IKE) value at the mosque of 13.49 kWh/m2/ month. Based on Permen No. 13 Tahun 2012 Tentang Penghematan Energi Listrik, this value is included in the fairly efficient energy consumption category.
Pengaruh Temperatur Aktivasi Fisika Terhadap Daya Serap Iodium Karbon Aktif Berbahan Dasar Limbah Plastik Polyethylene Terephthalate (PET) Khotimah, Nur; Martin, Awaludin; Taer, Erman
TURBO [Tulisan Riset Berbasis Online] Vol 13, No 1 (2024): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v13i1.3314

Abstract

Plastik sebagai inovasi dalam dunia material telah membawa dampak besar terhadap pencemaran lingkungan. Dampak negatif yang dihasilkan menjadi semakin nyata seiring dengan peningkatan produksi dan penggunaannya. Polyethylene terephthalate (PET) adalah jenis plastik yang digunakan dalam pembuatan botol minuman, kemasan makanan, dan berbagai produk lainnya. Solusi yang sedang dikembangkan untuk mengatasi permasalahan tersebut adalah pemanfaatan limbah plastik sebagai bahan dasar pembuatan karbon aktif. Karbon aktif adalah adsorben yang digunakan dalam aplikasi filtrasi air, pemurnian gas, dan pengolahan limbah. Daya serap Iodium (DSI) merupakan parameter yang sangat penting dalam menentukan kualitas dari suatu karbon aktif sebagai adsorben. Penelitian ini bertujuan untuk mengetahui nilai DSI pada karbon aktif berbahan dasar limbah plastik PET. Metode penelitian ini adalah plastik PET dikarbonisasi pada temperatur 400ºC selama 240 menit. Kemudian diaktivasi fisika pada variasi temperatur 800ºC dan 850ºC selama 120, 180 dan 240 menit. Karbon aktif yang dihasilkan pada penelitian ini telah memenuhi standar SNI 06-3703-1995 dengan hasil pengujian DSI paling optimum terdapat pada karbon aktif yang diaktivasi pada temperatur 800ºC selama 240 menit yaitu sebesar 895,78 mg/g.
Analisis Tahanan, Stabilitas, Seakeeping Dan Fenomena Slamming Pada Kapal Dengan Variasi Sudut Deadrise Fadillah, Naufal; Asral; Martin, Awaludin
Jurnal Teknik Mesin Cakram Vol. 7 No. 2 (2024)
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/jtc.v7i2.47909

Abstract

Kajian ini bertujuan untuk memberikan tinjauan komprehensif mengenai pengaruh variasi sudut deadrise terhadap performa kapal, termasuk aspek tahanan, stabilitas, seakeeping, dan fenomena slamming. Fokus utama dari review ini adalah menganalisis hasil-hasil penelitian terdahulu dan mengevaluasi dampak sudut deadrise terhadap kinerja kapal dalam berbagai kondisi operasi. Pada aspek tahanan, penelitian menunjukkan bahwa penurunan sudut deadrise dapat meningkatkan gaya angkat, mengurangi tahanan total, namun meningkatkan risiko slamming. Dari segi stabilitas, posisi Longitudinal Center of Gravity (LCG) yang lebih dekat ke haluan dapat memengaruhi periode dan amplitudo gerakan pitch serta porpoising, terutama pada kapal dengan sudut deadrise rendah. Untuk seakeeping, kapal dengan sudut deadrise rendah memiliki kecenderungan mengalami gerakan porpoising lebih besar, yang berpotensi meningkatkan risiko operasional, terutama dalam kondisi laut ekstrem. Fenomena slamming juga menjadi perhatian utama, karena gelombang yang bertabrakan dengan lambung kapal dapat menghasilkan tekanan besar yang tiba-tiba, mengancam struktur kapal. Dengan menganalisis berbagai temuan dari studi eksperimental dan numerik, review ini memberikan pemahaman yang mendalam tentang tantangan dan peluang desain kapal dengan variasi sudut deadrise. Hasil review ini diharapkan dapat membantu perancang kapal dalam mengoptimalkan desain yang efisien dan aman untuk beroperasi di berbagai kondisi laut, sekaligus meminimalkan risiko kerusakan struktur akibat slamming.
Design of Helical Type Steam Generator for Experimental Power Reactor – Helium Side Putri, Sunny Ineza; Subekti, Mohammad; Martin, Awaludin; P, Brian Agung Cahyo; Hermanto, Jheri; Siregar, Ansor Salim
Piston: Journal of Technical Engineering Vol. 9 No. 1 (2025)
Publisher : Program Studi Teknik Mesin Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v9i1.51645

Abstract

Previous research has not analyzed the helium temperature distribution in the RDE steam generator shell. This study aims to fill that gap by analyzing these thermal characteristics with empirical calculations and Ansys Fluent simulations. The validity of the RDE steam generator design is reaffirmed, having been successfully analyzed from both the water-flow perspective in previous research and the helium-side perspective in the present study. The analytical methods used herein showed strong consistency, with empirical and numerical simulation results differing by less than 10% across all parameters. Although the calculated shell height of 5.73 m exceeds the RDE design's 4.97 m, the overall design's validity is confirmed.
Analysis Energy of Freeze Vacuum Drying System with Thermal Energy Storage and Reverse Valve of 4kg Capacity NST, Berriansyah Cipta; Cahyati, Wulan; Mainil, Rahmat Iman; Martin, Awaludin
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 69 No 3 (2025): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v69i3.541

Abstract

This research evaluates the energy efficiency of the Aloe vera drying process using a Freeze Vacuum Drying (FVD) system, focusing on the thermal performance and the role of a Thermal Energy Storage (TES) unit with paraffin wax as the storage medium. Experiments were conducted with Aloe vera samples of 2 kg, 3 kg, and 4 kg to assess their effects on energy usage, Coefficient of Performance (COP), and moisture removal efficiency. The highest Specific Moisture Extraction Rate (SMER) was 0.132 kg.water/kWh for the 4 kg sample, with a Specific Energy Consumption (SEC) of 7.223 kWh/kg.water and a COP of 5.4. The energy efficiency peaked at 10.80%, achieved by incorporating TES. The results demonstrate that TES improves COP and reduces the specific energy demand, leading to a more energy-efficient drying process.
Perancangan Sistem Air blast freezing Berkapasitas 25 Kg dengan Sistem Refrigerasi Cascade Menggunakan Refrigerant R290/R32 Martin, Awaludin; Sihombing, Tikkos; Rizqullah, Ibnu; Auliaswan, Fayzil; Mainil, Rahmat Iman
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4399

Abstract

Indonesia is a country rich in marine catch, especially shrimp commodities, with a production volume reaching 1.12 million tons, but only 220 thousand tons or approximately 19.64%, are exported. One contributing factor to the low export rate is poor temperature control throughout the cold chain supply process. The aim of this study to design and develop an air blast freezing system with a capacity of 25 kg, and to compare the design results with experimental data. The main focus of the research is to increase the cooling system’s capacity to meet the demands of the cold chain in the storage of marine catch, while maintaining product temperatures consistently between -18 °C and -25 °C. The design results for the low-temperature cycle (LTC) yielded evaporator load of 788.66 W, compressor power of 221.78 W, condenser load of 1317.64 W, and an evaporator surface area of 4.84 m². For the high-temperature cycle (HTC), the evaporator load was 1499.76 W, compressor power was 159.61 W, condenser load was 948.27 W, and condenser surface area was 8.98 m². Experimental tests showed that the system was able to reach product temperatures between -19.6 °C and -25.3 °C, with a design COP of 2.014 and an actual COP of 2.413 for the cascade system
Perancangan Freeze Vacuum Drying Menggunakan Thermal Energy Storage untuk Mengeringkan Lidah Buaya dengan Kapasitas 4 kg Martin, Awaludin; Cahyati, Wulan; Adriyandy, Warits; Mainil, Rahmat Iman
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4398

Abstract

Freeze vacuum drying is known as the best drying method in maintaining the nutritional quality and physical appearance of the product. However, this method has the disadvantages of a slow drying rate and high energy consumption. This study aims to improve the efficiency of the drying process by utilizing waste heat from the condenser using a thermal energy storage system using Phase Change Material (PCM) in the form of paraffin wax. This study uses a system design method that is continued to the testing stage with the results of the design of the tube diameter used, namely 0.00953 m, then the evaporator dimensions are obtained with a pipe length of 23 m, and the evaporator surface area is 7.13 x 10-5 m2. For the condenser, the pipe length is 15.9 m, and the condenser heat transfer area is 0.4762 m2. Energy consumption for drying 4 kg of aloe vera using Thermal Energy Storage (TES) is 8.937 kWh, with a design Coefficient of Performance (COP) value of 3.8 and an actual COP of 2.5.
Co-Authors , Romy Abrar Ridwan Adam Maulana Ibra Adriyandy, Warits Agus, Rio Masri Agusta, Dhiky Rahman Agustina, Dinni Ahmad Farhan Ahmad Fudholi Ahmad Syaifudin Akbar, Mustafa Akbar, Musthafa Aldi Ansyah Kurniawan Lubis Andika Anis Aprilia Anuar, Kaspul Apriwandi Apriwandi . Arfie I. Firmansyah Arifful Rahman Asral Auliaswan, Fayzil Awal Januari S Azis, Azridjal Azridjal Aziz Bambang Suryawan Bambang Suryawan, Bambang Benny Wahyudi Benny Wahyudi Binsar Martua Parulian Manurung Brama, Jaka Cahyati, Wulan Chitraningrum, Nidya Clinton Naibaho Cupu, Dedi Rosa Putra Damanik, Reinhard Parulian Dedy Masnur, Dedy Deniza, Rindhu Nabila Dhewaji, Roe Dwi Dhiki R. A. Dhiky Rahman Agusta Dodi Sofyan Arief, Dodi Sofyan Doni saputra Erman Taer Fachri Husaini Fachry Abda El Rahman Fadilla Augusli Irwanda Fadillah, Naufal Faisal Afif Fakhru Rozi Z Feblil Huda Fharozi, Ridho Fikri Aminullah, Fikri Fikri Fahlevi Nasution Fikri Fahlevi Nasution Firmansyah, Arfie I. Ginting, Yogie Rinaldy Gun Faisal Hamdani Wahab Hamdani Wahab Hardanto, Lilik Tri Hariyono Hariyono Harun Orion Herisiswanto Herisiswanto Hidayatullah, Abda Ibrahim Ibrahim Irfandi Pratama Ivand Hintingo Iwan Kurniawan Iwan Kurniawan Jefri Ramadan Jheri Hermanto Johannes Panjaitan Jossy Kolata Julnaidi, Julnaidi Kharisma, Oktaf Brillian Khotimah, Nur Kresna, Pharada Krist Mamre Saragih M. Idrus Alhamid Meitri Nelta Mintarto, Mintarto Miswandi, Miswandi Moh. Arief Indra Permana Mohamad A Muhidin Mohammad Barbarosa Mohammad Barbarosa Muhammad Alhamid Muhammad Alhamid, Muhammad Muhammad Hatta Muhammad Idrus Alhamid, Muhammad Idrus Muhammad Nasir Muhammad Nur Muhammad Nur Ahmad H N. Nazaruddin Nasruddin - Nasruddin - Nasruddin Nasruddin Nasruddin Nasruddin Nasruddin Nasruddin Nasution, Fikri Fahlevi Nazaruddin Nehemia Simangunsong NST, Berriansyah Cipta Nur Indah Rivai Nur Indah Rivai Nursyafni, Nursyafni Okvitasari, Dwi Yani P, Brian Agung Cahyo Paulus, Hendri Pipin Azrin Pither Palamba Prayetno, Utari Purba, Cenora Evelynza Putra, Adipa Putri Nawangsari, Putri Putri Nawangsari, Putri Nawangsari Putri Wahyuni Putri, Rahma Lia Rahmat Iman Mainil Rahmi Dewi Rakhmawati Farma Reza Asrian Ridwan Abdurrahman Ridwan, Hafidz Abrar Rika Taslim Rizqullah, Ibnu Romy Romy Rudi Hartono Samuel Siregar Saragih, Krist Mamre Sari, Annisa Wulan Sibuea, Edwin Reinaldy Sihombing, Tikkos Sinaga, Tomi Siregar, Ansor Salim Sitompul, Nathaniel Andrew Sahala Somadona, Sonia Stevan Graciano Boyana Subekti, Mohammad Sunny Ineza Putri Surianto, Muhammad Akbar Syafri Syafri Tikkos Sihombing Tino Ferinando GS Tomi Sinaga Tri Bambang Lesmana Wahyudi, Wandi Warman Fatra, Warman Windy Lusia Samosir Wulan Sari, Annisa Yogi Wibowo Agusta Yogi Wibowo Agusta