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All Journal Jurnal Keteknikan Pertanian Transmisi ROTOR: JURNAL ILMIAH TEKNIK MESIN Turbo : Jurnal Program Studi Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering JEEMECS (Journal of Electrical Engineering, Mechatronic and Computer Science) Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Inotera ABDIMAS SILIWANGI JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) CERMIN: Jurnal Penelitian INTEGRITAS : Jurnal Pengabdian J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Empowerment Society Mechanical Engineering for Society and Industry Journal of Earth Energy Science, Engineering, and Technology IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) INSAN CENDEKIA : Jurnal Pengabdian Kepada Masyarakat Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Polimesin Journal Electric Field J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Energy: Jurnal Ilmiah Ilmu-ilmu Teknik
Alief Muhammad
Panca Marga University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities 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 Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation Other

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Uji karakteristik nyala api pembakaran premix bioetanol dari ampas tebu Saeful Bakhri; Djoko Wahyudi; Alieff Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 10 No 2 (2021): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v10i2.1694

Abstract

The fuel demand is very important in this day. The higher fuel consumption was impact depletion of existing reserves of oil resources. Bioethanol is one of the energy conversions from biomass containing sugar, starch and cellulose become fuel. Bagasse is a solid waste containing a lignocellulotic substrate which has the potential for bioethanol production. The purpose of this experiment was to determine the flame characteristics of the composition of the addition bioethanol to Pertamax as a mixture, with a variety of mixtures (B0, B5, B10 and B15). The test was carried out using the premix combustion method. The data from the result experiment were analyzed using descriptive methods. The results of the experiment showed that the addition of bioethanol can affect the flame characteristics. The shape of the flame changes from a conical shape to an enlarged cone angle along with the addition of a percentage. The flame height has decreased, the highest flame is at B0 with value of 12.79 mm, the lowest flame height is at B15 with value 10.27 mm. Combustion velocity has increased, the highest velocity is at B15 with value of 32.753 cm/s and the lowest velocity is at B0 with value of 22.253 cm/s.
Penelitian Perubahan Kinerja Mesin dan Karakteristik Emisi pada Remapping ECU pada Sistem Mesin 150cc Empat Tak dengan Satu Poros Nocken Atas Dodo Wicaksono; Alief Muhammad; Muhammad Fathuddin Noor; Indah Noor Dwi Kusuma Dewi; Mava Nurhaliza Helsinky; Dani Hari Tunggal Prasetiyo; Wahyu Nur  Achmadin
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.374

Abstract

This study evaluates the effects of ECU remapping, ignition system adjustments, and air-fuel ratio (AFR) modifications on engine performance and emission characteristics. Tests were conducted over engine speeds ranging from 4000 to 9000 RPM with different configurations: ECU, ignition system, and AFR adjustments. Results indicate that AFR remapping combined with fuel system tuning enhances torque and power at mid-range RPM, reaching a maximum torque of 12.98 N·m and power of 12.25 HP. ECU and ignition modifications increased CO and HC emissions, whereas AFR optimization through the fuel system reduced CO and improved Lambda toward stoichiometric balance. These findings highlight the importance of balancing performance improvement with emission control.
Dynamic Thermofluid Study of Petrodiesel Droplet Combustion with Variations of Kesambi Biodiesel Composition Accompanied with TiO₂ Catalyst Dani Hari Tunggal Prasetiyo; Nasrul Ilminnafik; Audiananti Meganandi Kartini; Gamma Aditya Rahardi; Alief Muhammad
Jurnal Keteknikan Pertanian Vol. 13 No. 3 (2025): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.013.3.462-480

Abstract

Meningkatnya permintaan energi global mendorong pengembangan bahan bakar alternatif berkelanjutan dengan karakteristik pembakaran yang kompetitif terhadap petrodiesel. Penelitian ini mengkaji fenomena termofluida dinamis pembakaran droplet campuran petrodiesel dan biodiesel minyak kesambi, baik tanpa maupun dengan penambahan katalis nanopartikel TiO₂ 100 ppm. Komposisi sampel bahan bakar yang digunakan terdiri dari B0, B10, B20, B30, B40, dan B100, serta masing-masing komposisi dengan penambahan TiO₂. Parameter yang dianalisis meliputi penundaan penyalaan, durasi pembakaran, tinggi nyala api, suhu optimal, dan visualisasi nyala api. Hasil penelitian menunjukkan bahwa peningkatan fraksi biodiesel menghasilkan durasi pembakaran yang lebih lama hingga 6,83 detik pada B100 dan penurunan suhu puncak sebesar 734,76°C, dibandingkan dengan B0 yang memiliki durasi pembakaran selama 3,22 detik dan suhu puncak sebesar 794,54°C. Penambahan TiO₂ secara konsisten meningkatkan kinerja pembakaran, ditunjukkan oleh suhu puncak yang lebih tinggi hingga 821,76°C pada B0+TiO₂, penundaan pengapian yang lebih singkat, dan nyala api yang lebih stabil. Tinggi nyala api tertinggi teramati pada B0+TiO2 sebesar 53,79 mm dan terendah pada B100 sebesar 40,87 mm. Selain itu, penundaan pengapian tertinggi terjadi pada komposisi B100 sebesar 7,95 detik, sementara terendah terjadi pada komposisi B0+TiO2 sebesar 1,65 detik. Hal ini menunjukkan adanya hubungan antara komposisi bahan bakar dan intensitas pembakaran.
Modulating the holding time of hardening process in Q-P-T heat treatment: An experimental study on mechanical properties of medium-carbon steel plate Alief Muhammad; Dani Hari Tunggal Prasetiyo; Poppy Puspitasari
Mechanical Engineering for Society and Industry Vol. 4 No. 2 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.12053

Abstract

The metal heat treatment industry has seen substantial growth, with market projections increasing by USD 15.18 billion from 2022 to 2027, driven by advancements in technology. The iron and steel industry significantly contributes to this growth, accounting for six percent of the market share. In this evolving landscape, the Quenching-Partitioning-Tempering (Q-P-T) technique is emerging as a valuable heat treatment process for enhancing Advanced High-Strength Steels (AHSS). The Q-P-T process, involving Quenching, Partitioning, and Tempering, aims to improve the mechanical properties of medium-carbon steels through controlled thermal modifications. This study explores the effects of varying holding times during the Q-P-T treatment on the mechanical properties and microstructure of medium-carbon steel ST60-2. Steel samples were subjected to holding times of 10, 15, and 20 minutes at a temperature of 920 °C, followed by quenching to 350 °C and partitioning at the same temperature for 15 minutes, with final tempering at 200 °C. The results indicate that longer holding times enhance mechanical properties such as Ultimate Tensile Strength (UTS), Product of Strength and Elongation (PSE), and hardness, with the 20-minute sample (Sample 3) achieving the highest UTS of 74.02 kgf/mm² and elongation of 16.63%. Hardness peaked at 109.33 HRB, and improved toughness was observed due to better phase transformation and carbon partitioning (1.36 Joule/mm²). Microstructural analysis revealed finer and more uniformly distributed cementite particles with extended holding times, contributing to enhanced material performance. The findings underscore the potential of Q-P-T heat treatment in optimizing medium-carbon steels, offering a tailored approach for applications requiring superior mechanical properties.
The Impact of Energy Price Volatility on Industrial Performance: A Review of Energy Efficiency and Renewable-Energy Adoption Alief Muhammad; Mas Ahmad Baihaqi; Hartawan Abdillah; Tamam Asrori
ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK Vol. 16 No. 2 (2026): ENERGY: JURNAL ILMIAH ILMU-ILMU TEKNIK (July-November 2026 Edition)
Publisher : Universitas Panca Marga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51747/energy.v16i2.p212-228

Abstract

The increasing volatility of global energy markets has created significant challenges for industrial sectors by increasing production costs, reducing competitiveness, and threatening operational stability. This study investigates how energy price volatility influences industrial performance and examines the roles of energy efficiency and renewable-energy adoption as adaptation mechanisms. A systematic literature review (SLR) was conducted based on 298 peer-reviewed articles published between 2020 and 2026 from Scopus, Web of Science, ScienceDirect, and Google Scholar. The selected studies were analyzed using thematic synthesis to identify major research trends, causal mechanisms, and emerging research gaps. The findings reveal that energy price volatility represents a critical external shock affecting industrial performance through increased operational costs, supply-chain disruption, investment uncertainty, and reduced competitiveness. However, the literature also demonstrates that firms can reduce vulnerability through internal adaptation capabilities. Energy efficiency functions as a strategic capability by reducing energy intensity, improving operational flexibility, and mitigating cost pressures, while renewable-energy adoption provides a buffering mechanism by diversifying energy sources and reducing dependence on volatile fossil-fuel markets. The review integrates Resource Dependence Theory, Resource-Based View, Dynamic Capability Theory, and Natural Resource-Based View to explain how industrial firms transform energy uncertainty into resilience capabilities. The study highlights that future industrial competitiveness will depend not only on access to affordable energy but also on firms’ ability to develop adaptive energy strategies, digital energy-management capabilities, and sustainable energy systems. This review provides a conceptual foundation for understanding industrial resilience under increasing global energy uncertainty.
Analisis Daya Keluaran PLTS–Turbin Angin terhadap Suhu Kotak Pendingin Portable Terintegrasi GPS IoT: Indonesia Mas Ahmad Baihaqi; Hartawan Abdillah Abdillah; Adi Mulyadi; Tamam Asrori Asrori; Alief Muhammad; Ahmad Fauzan; M. Bayu Afandi
JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Vol. 7 No. 2 (2025): Desember 2025
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jasiek.v7i2.16183

Abstract

The main challenge faced by small-scale fishermen in Probolinggo is the deterioration of fish catches due to limited cooling systems. This study developed a portable cooling box powered by a hybrid solar–wind energy system integrated with GPS–IoT. The system was designed using a 100 Wp solar panel, a 450 W wind turbine, a 100 Ah battery, a 3000 W inverter, and temperature sensors with IoT communication modules for real-time monitoring. Experiments were conducted for 12 hours under three operating modes: solar, wind only, and hybrid. The results show the hybrid mode maintained the cooling box temperature below 8 °C for more than 12 hours, while the solar-only and wind-only modes lasted only 4–7 hours. The GPS–IoT integration enabled simultaneous monitoring of vessel location and energy conditions. Therefore, the proposed system proved to be more reliable in preserving fish quality while enhancing efficiency and safety of small-scale fishermen through renewable energy.
Sistem Pemantauan Gas Gunungapi Berbasis IoT dan Energi Surya untuk Mitigasi Bencana di Gunung Bromo Hartawan Abdillah; Wahyu Andrian Kusuma; Mas Ahmad Baihaqi; Alief Muhammad; Indah Noor Dwi Kusuma Dewi
JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Vol. 7 No. 2 (2025): Desember 2025
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jasiek.v7i2.16324

Abstract

This study presents the design of an IoT-based volcanic gas monitoring system powered by solar energy. The system integrates H₂S and CO₂ sensors with an ESP32 microcontroller, transmitting data in real time to a cloud dashboard via MQTT/HTTP protocols. A 100–300 Wp solar panel generated an average of 21 V and 2.1 A (≈529 Wh/day), significantly exceeding the sensor’s energy demand of ≈24 Wh/day. Field testing at Mount Bromo recorded average concentrations of H₂S = 0 ppm and CO₂ = 599 ppm, which are below hazardous thresholds but require continuous observation. The results demonstrate that the system is energy-efficient, stable under variable conditions, and effective in providing early warning alerts, thus supporting volcanic disaster mitigation and aligning with SDGs 9 and 13.
PENDIDIKAN BERBASIS NILAI QUR`ANI SEBAGAI SOLUSI KRISIS MORAL: STUDI KEPUSTAKAAN PENDIDIKAN ISLAM Rojibillah, Isnan; Muhammad, Alief
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 Nomor 03, September 2026 Published
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.57429

Abstract

The moral crisis in contemporary education has become a serious issue, characterized by declining integrity, weakening adab, and the growing gap between knowledge and moral values. This phenomenon reflects the limitations of modern education paradigms that are predominantly cognitive-centered and insufficient in moral formation. This study aims to analyze Qur’anic values-based education as a conceptual solution to the moral crisis from the perspective of Islamic Educational Studies. The research employs a qualitative approach using library research methodology. Primary data sources include the Qur’an and classical as well as contemporary tafsir works, while secondary sources consist of scholarly journals and academic books on Islamic education published within the last five to ten years. Data were analyzed through content analysis and a thematic Qur’anic (maudhu’i) approach. The findings indicate that Qur’anic values such as tawhid, akhlaq, adab, trust and responsibility, honesty, and justice that serve as fundamental foundations for holistic and transformative education. Qur’anic values-based education is relevant in addressing the moral crisis through the integration of values into curricula, the exemplary role of educators, and the development of value-oriented institutional culture. This study concludes that Qur’anic values-based education represents a significant pedagogical paradigm for addressing the moral crisis in a systemic and sustainable manner)
Peran Waktu Reaksi dalam Mengendalikan Trade-Off antara Efisiensi Konversi dan Karakteristik Fisikokimia Biodiesel dari Minyak Goreng Bekas: The Role of Reaction Time in Controlling the Trade-Off between Conversion Efficiency and Physicochemical Characteristics of Biodiesel from Used Cooking Oil Dani Hari Tunggal Prasetiyo; Andi Sanata; Danang Yudistiro; Alief Muhammad; Mas Ahmad Baihaqi; Hartawan Abdillah
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 11 No. 1 (2026): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v11i1.5480

Abstract

Pemanfaatan minyak goreng bekas sebagai bahan baku biodiesel merepresentasikan pendekatan strategis. Hal ini dikarenakan dapat pengelolaan limbah dengan optimal menjadi penyediaan energi berkelanjutan. Akan tetapi, peran durasi reaksi dalam mengendalikan keterkaitan antara efisiensi konversi dan mutu bahan bakar masih belum dipahami secara komprehensif. Oleh karena itu, kajian ini menguantifikasi pengaruh waktu reaksi yang mendasari fenomena trade-off antara yield  dan karakteristik fisikokimia biodiesel. Eksperimen dilakukan pada variasi waktu reaksi 45–90 menit dengan evaluasi parameter yield , densitas, viskositas kinematikaa, dan flash point. Hasil menunjukkan bahwa yield  maksimum sebesar 85,64% dicapai pada 45 menit, kemudian menurun hingga 74,34% pada 90 menit. Sebaliknya, densitas dan viskositas meningkat secara bertahap, sementara flash point mengalami penurunan. Tren ini mengindikasikan adanya pergeseran komposisi produk yang dipicu oleh dominasi reaksi samping, termasuk reaksi reversibel dan akumulasi senyawa antara. Temuan tersebut menegaskan bahwa waktu reaksi berperan sebagai variabel pengendali distribusi komponen dalam sistem, yang secara simultan memengaruhi efisiensi konversi dan kualitas bahan bakar. Berdasarkan evaluasi terhadap parameter yield , densitas, viskositas kinematika, dan flash point, rentang waktu reaksi 45–60 menit menunjukkan keseimbangan terbaik antara efisiensi konversi dan karakteristik fisikokimia biodiesel sesuai SNI 7182:2024. Secara konseptual, studi ini memperkuat pemahaman mengenai mekanisme trade-off dalam proses transesterifikasi serta menawarkan pendekatan optimasi berbasis keseimbangan antara kuantitas dan kualitas produk
Optimasi Efisiensi Solar Cell Melalui Solar Tracking dan Sistem Monitoring Pada Proteksi Energi Listrik Mas Ahmad Baihaqi; Hartawan Abdillah; Ahmad Izzuddin; Tamam Asrori; Alief Muhammad; Dani Hari Tunggal Prasettio
Journal Electric Field Vol. 1 No. 1 (2024): Journal Electric Field
Publisher : CV. Sekawan Siji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63440/jef.v1i1.19

Abstract

This research aims to design and develop an advanced monitoring system for solar cells, incorporating solar tracking technology and equipped with an energy storage protection system. In Indonesia, the substantial potential of solar energy remains underutilized, despite the country's advantageous equatorial location, which provides a solar radiation intensity averaging 4.5 kWh/m² per day. The proposed system in this study seeks to maximize solar energy capture by employing a tracking mechanism that aligns the solar cells with the direction of sunlight throughout the day. Additionally, the system is designed with an integrated protection feature to prevent battery overuse, thereby extending the battery's lifespan and ensuring efficient energy storage. The research utilizes an Arduino Uno microcontroller, Light Dependent Resistor (LDR) sensors, and an INA219 sensor module as the primary components for accurate measurement and real-time monitoring. The system's effectiveness is evaluated based on its ability to optimize solar energy reception and maintain the longevity and efficiency of the energy storage system. Experimental results demonstrate that the developed system significantly improves the efficiency of solar energy capture by the solar cells and provides robust protection for the energy storage mechanism. This study contributes to the field of renewable energy by offering a practical solution for enhancing solar energy utilization in regions with high solar irradiance, thus promoting sustainable energy practices and reducing dependence on non-renewable energy sources.
Co-Authors A. A. Permanasari Abdillah, Hartawan Abdul Basit Abdul Basit Achmadin, Wahyu Nur Adi Mulyadi Agung Fitrahadi Ahmad Fauzan Ahmad Fauzan Ahmad Iskandar Rahmansyah Ahmad Izzuddin Ahmad Izzuddin Akbar Anugrah Ikhsani Andi Sanata Andrianata, Mufid Andrie Angga Prasmana Aprillia, Wulan Asroful , Asroful Abidin Asrori, Tamam Baihaqi, Mas Ahmad Baihaqi Citra Suardi Danang Yudistiro Dani Hari Tunggal Prasetiyo Dewi Izzatus Tsamroh Dewi, Indah Noor Dwi Kusuma Dini, Joko Sugiono Eka Prasetya Djoko Wahyudi Djoko Wahyudi Djoko Wahyudi Djoko Wahyudi Dodo Wicaksono Eva Kurnia Yulyawan Fathuddin Noor, Muhammad GAMMA ADITYA RAHARDI Hartawan , Hartawan Abdillah Hartawan Abdillah Hartawan Abdillah Hartawan Abdillah Abdillah Helsinky, Mava Nurhaliza Hendra, Joni Hermanto Hermanto Hermanto Hermawan, Nanang Indah Noor Dwi Kusuma Dewi Indah Noor Dwi Kusuma Dewi Indah Noor Dwi Kusuma Dewi Indah Noor Dwi Kusuma Dewi Indayani, Sulis Dyah Candra Iswardani, Kurnia Isyuniandri, Dzaky Jibril Maulana Judi , Suharsono Kartini, Audiananti Meganandi Kurniawan, Tri Nanda Indra Linda , Linda Kurnia Supratiningsih Linda Kurnia Linda Kurnia Supraptiningsih Luthfi, Nur Ahmad M. Bayu Afandi Mas Ahmad Baihaqi Mas Ahmad Baihaqi Mas Ahmad Baihaqi Mas Ahmad Baihaqi Mas Ahmad Baihaqi Mas, Ahmad Baihaqi Mava Nurhaliza Helsinky Mochamad Fani Nur Umri Mochammad Rizky Kurniawan Mochammad Rizky Kurniawan Mufid Andrianata Muhammad Muhammad Zainal Roisul Amin MutindaTeguh Widayanto N. A. Ahmad Nafis, Raihan Nasrul Ilminnafik Nasrul Ilminnafik Nisak, Indani Khoirun Noor, Muhammad Fathuddin Novan Fithrianto Poppy Puspitasari Prasetiyo, Dani Hari Tuggal Putri, Salsabillah Widya Eka Putro Adi Pamungkas Rojibillah, Isnan Rr. Poppy Puspitasari S. M. S. N. S. Zahari Saeful Bakhri Setyawati, Ika Setyo Pambudi Siti Masluha Suharsono, Judi T. Pasang Tamam Asrori Tamam Asrori Tamam Asrori Tamam Asrori Tamam Asrori Asrori Trifiananto, Muhammad Triyastutik, Annisa Ayu Wahyu Andrian Kusuma Wahyu Nur Achmadin Wahyu Nur Achmadin Wahyu Nur Achmadin Wahyu Nur  Achmadin Winda Ayu Mundari Yazirin, Cepi Yulyawan, Eva Kurnia