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All Journal Jurnal Teknik Mesin Jurnal SOLMA Machine : Jurnal Teknik Mesin Industrial Engineering Journal (IEJ) Jurnal Hurriah: Jurnal Evaluasi Pendidikan dan Penelitian Malikussaleh Journal of Mechanical Science Technology Journal of Renewable Energy, Electrical, and Computer Engineering TECHSI - Jurnal Teknik Informatika Sisfo: Jurnal Ilmiah Sistem Informasi Jurnal Energi Elektrik Jurnal Teknologi Terapan and Sains 4.0 Jurnal Malikussaleh Mengabdi Jurnal Solusi Masyarakat Dikara Journal of Mechanical Engineering and Fabrication
Yasir Amani
Universitas Malikussaleh
Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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Analysis of coal quality as fuel for steam power plants in Langkat Regency based on the proximate test Alfath Khoir Nst; Sayuthi, Muhammad; Amani, Yasir; Habibi, Muhammad; Faisal, Faisal; Hidayat, Heindrix
Journal of Mechanical Engineering and Fabrication Vol. 2 No. 2 (2025): September
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v2i2.23

Abstract

Coal quality assessment is crucial for determining its suitability as a fuel for power generation and industrial applications. Such evaluation generally involves proximate and ultimate analyses. The proximate analysis provides information on moisture, volatile matter, fixed carbon, and ash content, whereas the ultimate analysis identifies elemental composition such as carbon, hydrogen, oxygen, nitrogen, and sulfur. Geological factors, including age, temperature, and pressure during formation, strongly influence coal quality. This study aims to evaluate the effect of particle size on coal quality using grain sizes of 40 and 60 mesh, analyzed according to ASTM standard procedures. The results indicate that coal with a grain size of 40 mesh contains, on average, 22.22% moisture, 5.83% ash, 37.54% volatile matter, and 34.15% fixed carbon. In contrast, coal with a grain size of 60 mesh exhibits 20.45% moisture, 6.80% ash, 42.77% volatile matter, and 29.99% fixed carbon. These findings highlight the significant influence of particle size on the proximate characteristics of coal, which can affect its combustion behavior and potential applications in power plants and other industries
Pengaruh Variasi Temperatur Torefaksi Terhadap Karakteristik dan Nilai Kalor dari Produk Briket Arang Eceng Gondok Aris, Muhammad Zainul; Amani, Yasir
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4264

Abstract

Energy is needed by all people in various countries, this results in climate change and depletion of energy, it is necessary to find clean alternative energy, one of which is biomass. Water hyacinth is a biomass that grows rapidly in Indonesia, but its energy density is still low. This research aims to improve the characteristics and calorific value of water hyacinth biomass using torefaction process. In this study, water hyacinth was subjected to a torefaction process with temperature variations of 200 ℃, 250 ℃ and 300 ℃ and a holding time of 1 hour. ¬The biochar resulting from the torefaction process is then made into briquettes using tapioca starch adhesive, with a ratio of 10% of the weight of the raw material, and pressing at a pressure of 300 kg/cm2. From the research and testing that has been done, the proximate test results obtained the lowest moisture content of 5.75% in the 300 ℃ sample, the lowest ash content of 17.65% in the 200 ℃ sample, the lowest volatile compounds of 39.52% in the 300 ℃ sample and the highest fixed carbon of 25.92% in the 300 ℃ sample. The highest heating value was produced in the 300 ℃ sample which amounted to 5140.44 cal/g. The lowest Shatter Index was 1.68% in the 300 ℃ sample. The most optimal burning rate of briquettes in the 300 ℃ sample was 0.085 g/min with a duration of 47 minutes. The results of this study indicate that the torefaction process and torefaction temperature variation have a significant effect on the characteristics and heating value of water hyacinth briquettes. Key words : Torefaction, Water Hyacinth, Characteristics, Calorific Value, Briquettes.
Edukasi Penerapan Sistem ATS Antara PLN dan PLTS di SMA Negeri 2 Kesuma Bangsa Meliala, Selamat; Akmal, Syarifah; Amani, Yasir; Putri, Raihan; Muhammad Jalil, Saifuddin
Jurnal SOLMA Vol. 12 No. 3 (2023)
Publisher : Universitas Muhammadiyah Prof. DR. Hamka (UHAMKA Press)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/solma.v12i3.13126

Abstract

Background: Background: Electricity sources originating from PLN often cause sudden power outages that we don't know about, so this is very dangerous for sensitive electronic devices such as computers. To provide knowledge of automatic switch technology for quick transfers in selecting one source that is on quickly so that there is no momentary power outage on the computer load. Method: SMA Negeri 2 Kesuma Bangsa, the number of participants was 30 students, providing direction or education to participants in the form of ATS technology and providing insight into the use and design of ATS technology. As well as providing questionnaires before and after education on ATS implementation and scoring scores regarding understanding of the technology. Results: The student community was very enthusiastic about participating in the event and they understood the implementation of ATS between PLN and PLTS. Conclusion: Rooftop solar panels are used to increase additional power by 8 pieces with a capacity of 200 WP per piece and in the computer laboratory at SMAN 2 Kesuma Bangsa they can be used because the flashing is very small so there will be no momentary shutdown which will cause data loss.
PREDICT TUBE OVERAL FOULINGIN HEATEXCHANGER 53 EA-1001 Yasir Amani
Sisfo: Jurnal Ilmiah Sistem Informasi Vol. 2 No. 1 (2018): Sisfo: Jurnal Ilmiah Sistem Informasi, Mei 2018
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/sisfo.v2i1.1005

Abstract

Alat penukar kalor tipe 53 EA-1001 yang ada pada perusahaan PT. Pupuk IskandarMuda beroperasi waktu beberapa lama maka terbentuklah lapisan kotoran ataufouling, adanya fouling akan mengurangi koefesien perpindahan panasmenyeluruh (U) sampai batas akhir perencanaan alat mencapai harga minimum,informasi ini diperoleh untuk dapat membuat jadwal rutin berkala pembersihandan juga pergantian pipa alat penukar kalor yang tidak layak digunakan lagidengan memprediksi penumpukkan fouling maksimum pada alat penukarkalor.Adanya fouling akan mengurangi koefesien perpindahan panas sampai batasakhir perencanaan, sehingga dapat dibuat jadwal perawatan rutin. Pengaruhkoefesien perpindahan panas menyeluruh (U) terhadap kecepatan aliran fluida,mengakibatkan tingginya kecepatan aliran. 8640 jam operasi pada fouling faktor0,0082 (Rd) menghasilkan volume fouling 0,0066 m3 perlu perawatan pada usiaAPK 27 tahun penyumbatan fouling pada volume 63,585 m3. Aliran yang mengaliradalah laminar dengan nilai 950 Btu.ft3/J.lb.s dan tenaga yang hilang 1,46 kali daritenaga yang hilang pada keadaan tanpa ada fouling. Kata kunci : Fouling, alat penukar kalor, koefisien perpindahan panas,aliran, fluida
SAFETY AND HEALTH ANALISYS IMPLEMENTATION OF CONSTRUCTION PROJECTS WORK SAFETY IN STUDY ACEH PROVINCY Yasir Amani
Sisfo: Jurnal Ilmiah Sistem Informasi Vol. 3 No. 1 (2019): Sisfo: Jurnal Ilmiah Sistem Informasi, Mei 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/sisfo.v3i1.6307

Abstract

Material losses suffered by the company due to the applied program and appropriate safety management among other things, cessation of work which resulted in reduced production and increased frequency of repair or rehabilitation equipment/supplies. The purpose of this study was to assess the level of understanding, awareness, and the factors and constraints of the implementation of safety management programs work by the company to the contractor. To achieve this end, it is the goal of research is to identify the level of understanding and awareness of the parties to the contractor (contractor) on safety at construction project sites, identify the factors and constraints of the implementation of safety management program at the project site construction work, and to identify risks to safety that occurred construction project location. The research data obtained through a questionnaire about the respondent's profile and project descriptions, safety program implementation checklists, and questionnaires Perceptions of contractor safety programs. The results show a variable level of understanding and awareness of the parties to the contractor (contractor) on safety at construction project sites, the most dominant subvariabel selected respondents is subvariabel "Provision of First Aid boxes Accident Victim (P3K)" with a mean value of 5.000 and variance 0.000 . In the variable patterns of program implementation and management of safety is commonly done by the company to the contractor (contractor) subvariabel "Restore the Operating System on the Safe state" with 4.4462 mean value and variance 0.407. On the identification of variable risks to safety that occurred at the site of construction projects on the implementation of construction works of sub variables "machine, for example engine powerhouse" with a mean value of 4.7846 with 0.172 variant, "The working environment (outside the building, inside buildings, and under ground) "with a mean value of 4.7846 with 0.172 variant," The cut on the surface", "Burns", and Below members of the body" with a mean value of 4.7846 with variance 0.172, are subvariabel-subvariabel as the most dominant.
ANALYSIS PROJECT FOR TIME WORKS AT BRIDGE CONTRUCTION Yasir Amani
Sisfo: Jurnal Ilmiah Sistem Informasi Vol. 3 No. 2 (2019): Sisfo: Jurnal Ilmiah Sistem Informasi, Oktober 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/sisfo.v3i2.6333

Abstract

Bangunan jembatan presstress adalah bangunan kuat didalamnya gelagar memakai kabel sling, kualitas tahan lama dan tidak mengalami korosi dan murah perarawatan juga tanpa pengecatan. Pemasanganjembatan presstress memakai mesin alat berat yaitu mesin crain, lebih cepat daripada rangka baja karena sudah diuji dipabrikan bongkar pasang dilapangan kemudian dipasang. Hanya membutuhkan beberapa hari saja.  Semakin besar bangunan maka akan menambah masa pelaksanaannya sehingga semakin tinggi biayanya. Dalam pelaksanaan proyek konstruksi jembatan waktu dan biaya adalah dua hal utama.Faktor biaya dan waktu memberikan tantangan dan peluang bagi perencana kontruksi untuk membuat rencana konstruksi yang terbaik dengan  waktu dan biaya yang optimal untuk menyelesaikan pelaksanaan proyek jembatan.Penelitian untuk mendapatkan model hubungan waktu, biaya dan luas pada konstruksi Jembatan di Provinsi Aceh. Lingkup dibatasi pada bangunan jembatan presstress. Data diperoleh adalah data RAB, waktu, addendum kontrak dan gambar yang diperoleh dari Dinas Binamarga yaitu sebanyak 23 (duapuluh tiga) data proyek. Penelitian menggunakan metodelogi statistik yaitu menggunakan pendekatan persamaan Bromillow dan analisa regresi berganda. Hasil perhitungan menggunakan pendekatan persamaan Bromillow dapat direkomendasikan hanya model  T = 160.39C0,13. Jadi pemasanganjembatan presstress memakai mesin alat berat yaitu mesin crain, sering mengalami keterlambatan karena keterbatasan mesin alat berat berupa crain yang beroperasi di aceh, mobilisasi dan memindahkan mesin crain tersebut membutuhkan waktu yang lama.
Automation of Conveyor System Based on Internet of Things (IoT) with Remote Control via Telegram Bot and ESP32 Selamat Meliala; Yogi Satya; Rosdiana Rosdiana; Taufiq Taufiq; Yasir Amani
Journal of Renewable Energy, Electrical, and Computer Engineering Vol. 6 No. 1 (2026): March 2026
Publisher : Institute for Research and Community Service (LPPM), Universitas Malikussaleh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jreece.v6i1.20447

Abstract

This study presents the design and implementation of an IoT-based automated conveyor system using the ESP32 microcontroller and Telegram bot for remote control. The system integrates the L298N motor driver to precisely control the speed and direction of a 12V DC motor. Telegram serves as the communication platform, enabling real-time notifications, remote monitoring, and operational control, thereby enhancing user convenience and operational flexibility. The experimental results demonstrate the system's stability across various operating conditions. Testing revealed consistent performance in controlling motor speed and direction without overheating or disruptions, even during extended operations. The system effectively integrates IoT and automation technologies to provide a scalable, cost-effective solution for modern industrial conveyor systems. This research contributes to the advancement of Industry 4.0 by addressing the growing demand for efficient, remote-controlled automation. The proposed system offers significant potential for application in industrial settings, emphasizing reliability, ease of use, and adaptability. Future enhancements could focus on incorporating additional sensors and advanced analytics to improve system intelligence and extend functionality.
Penyuluhan Penempatan PLTS Rooftop Hybrid PLN Menggunakan ATS pada Guru SMP Negeri 5 Lhokseumawe Selamat Meliala; Saifuddin Muhammad Jalil; Yasir Amani; Risna Dewi; Muhammad Daud; Ekamaida
Jurnal Malikussaleh Mengabdi Vol. 5 No. 1 (2026): Jurnal Malikussaleh Mengabdi, Januari 2026
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jmm.v5i1.25396

Abstract

Kebutuhan energi listrik yang terus meningkat mendorong peralihan ke sumber energi terbarukan seperti panel surya. Kegiatan pengabdian masyarakat ini bertujuan memberikan edukasi tentang penggunaan panel surya rooftop kepada guru dan siswa SMP Negeri 5 Kota Lhokseumawe. Metode kegiatan meliputi ceramah, demonstrasi panel surya mini, dan diskusi interaktif. Hasil kegiatan menunjukkan peningkatan pengetahuan peserta mengenai energi surya dan minat terhadap teknologi energi bersih. Kegiatan ini diharapkan menjadi langkah awal bagi pihak sekolah untuk menerapkan panel surya sebagai sumber energi alternatif yang ramah lingkungan. Dari hasil kuisioner nilai pemahaman para peserta ratanya – ratanya jawaban yang benar hampir 100%.
Solar Energy Management in Electricity Load Application of Household Room Based on IoT Syarifah Akmal; Selamat Meliala; Yasir Amani; Saifuddin Muhammad Jalil
Journal of Renewable Energy, Electrical, and Computer Engineering Vol. 4 No. 1 (2024): March 2024
Publisher : Institute for Research and Community Service (LPPM), Universitas Malikussaleh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/jreece.v4i1.13425

Abstract

Currently using electrical energy is very large and electrical energy security continues to be studied by government. Developments starts from using and managing of renewable energy sources. Energy sources will not be run out. One of which is using heat energy from sunlight. Using The use of the concept of renewable energy utilization strategy is still 17%. The energy management method is to use a smart system where if the room is during the day, the LDR sensor will signal to the microcontroller so that the room lights will turn off and if there is heat the DHT22 sensor detects the room temperature of 300 C. Then the fan turns on and cools the room so that it will cool down and the load that is not needed by the grid will not function so that energy consumption will be reduced according to calculated needs. This working system is based on IOT derived from ESP 8266 to store solar energy consumed by the house room. The smart method used in the research is to place 3 DHT22 sensors for optimal heat temperature. Average temperature sensor data, LDR data is stored in the data logger in the form of xls files on Gdrive. xls files then for 15 days. From the results of the date per 15 days on 13-11-2023, the design obtained an average temperature of 30.90 with a consumption of 5.83 kWH at a cost of 7882.16 rupiah.
Analisys Modifikasi Lubang Kompor Roket Biomassa Terhadap Efesiensi Burning asnawi asnawi; Edi Yusuf; Yasir Amani; Ari Putra Wardany
Sisfo: Jurnal Ilmiah Sistem Informasi Vol. 6 No. 1 (2022): Sisfo: Jurnal Ilmiah Sistem Informasi, Mei 2022
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/sisfo.v6i1.7972

Abstract

Pemakaian bahan bakar  fosil di Indonesia semakin meningkat seiring meningkatnya populasi manusia dan laju industrialisasi. Apabila konsumsi bahan bakar ini tidak dibatasi maka krisis bahan bakar minyak (BBM) akan terjadi dalam kurun waktu dekat. Saat ini pemerintah mengimpor BBM dari negara lain untuk memenuhi kebutuhan BBM. Bahan bakar fosil merupakan sumber energi utama dan tidak dapat di perbaharui (nonrenewable) serta berdampak negatif terhadap lingkungan seperti pemanasan global. Energi terbarukan merupakan solusi krisis energi dan biomassa merupakan salah satu energi terbarukan yang sangat potensial untuk di kembangkan karena tersedia di seluruh wilayah Indonesia dalam jumlah yang melimpah. Biomassa merupakan bahan bakar yang telah menjadi andalan masyarakat di pedesaan terutama untuk keperluan memasak atau memanaskan secara  tradisional. Biomassa yang sering digunakan antara lain kayu, serbuk gergaji, ampas tebu, dan sekam  padi. Cangkang sawit salah satu biomassa yang dapat dijadikan sebagai bahan bakar pembakaran ialah, karena cangkang sawit termasuk limbah biomassa yang ketersediaanya cukup besar di wilayah Indonesia khususnya area perkebunan kelapa sawit. Melalui penelitian ini perancangan kompor roket dengan variasi lubang saluran udara dilakukan untuk mengoptimalkan kinerja kompor biomassa. Hasil pengujian menunjukkan efesiensi tertinggi 15% pada pengujian 2 dengan bahan bakar kayu jati dengan 175 lubang dan pengujian 3 dengan bahan bakar kayu jati dengan 199 lubang, sedangkan efesiensi terendah 6% pada pengujian 3 dengan bahan bakar cangkang sawit dengan 162 lubang dan 37 pipa kapiler.
Co-Authors Abubakar Abubakar Adi Setiawan Ahmad Nayan Akmal, Syarifah Alchalil Alchalil Alfath Khoir Nst Aljufri Aljufri Ari Putra Wardany Ari Saptari, Mochamad Aris, Muhammad Zainul Asnawi Asran Asran Defi Irwansyah Edi Yusuf Adiman Edy Yusuf Ekamaida Fadlisyah Fadlisyah Faisal Faisal Hidayat, Heindrix Ilham Syahputra M. Ilham Maulana Meliala , Selamat Muhammad Daud Muhammad Habibi Muhammad Iqbal Suhada Muhammad Muhammad Muhammad Nuzan Rizki Muhammad Sayuthi Muhammad Zainul Aris Nurul Islami, Nurul Pranata, Tri Agung Rahman, Abduk Raihan Putri Ramadhanil Ramadhanil Risna Dewi Rosdiana Rosdiana Saifuddin Muhammad Jalil Selamat Meliala Siddiq, Dian Subahgia, Jeroh Miko Supia, Dede Irawan Suryadi Suryadi Syamsiar, Syamsiar Syarifah Akmal Taufiq Taufiq Yogi Satya Z Zulfahmi Zarkasyi Zarkasyi Zulfahmi Zulfahmi Zulmiardi, Zulmiardi