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All Journal Jurnal Teknik Mesin Indonesia Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Scientific Journal of Mechanical Engineering Kinematika Civil Engineering For Community Development
Mekro Permana Pinem
Universitas Sultan Ageng Tirtayasa
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Analisis potensi energi panas matahari untuk digunakan pada sistem refrigerasi absorpsi di bangunan perkantoran Yusvardi Yusuf; Imron Rosyadi; Mekro Permana Pinem
Jurnal Teknik Mesin Indonesia Vol. 17 No. 2 (2022): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v17i2.382

Abstract

Conventional cooling systems used in office buildings are one of the causes of ozone layer depletion and greenhouse effects. It requires the advancement of new technologies that are safe for the environment to be used in cooling systems in office buildings. Absorption cooling systems using solar thermal energy have many advantages by using non-destructive working fluids such as water, or in the form of saline solutions. This is a form of energy saving and safe for the environment. In order to obtain real and objective measurement data, testing is performed in two stages, namely the test equipment testing stage and the second stage is data collection when the test equipment is fully operational. The test equipment can be used in stand-alone systems or conventional air conditioners. In the test, it is known that the average percentage of solar thermal energy consumption per day is 40% of total energy so due to solar thermal energy consumption, the average COP value of this system per day is 2 and this value is greater than similar absorption cooling systems. conventional, then by knowing the value of solar energy consumption, can be seen the value of CO2 emissions reduction of 143.8 kg CO2 per day.
PENGARUH FRAKSI VOLUME DAN ARAH SERAT TERHADAP KETANGGUHAN IMPAK DAN KEKUATAN BENDING PADA MATERIAL KOMPOSIT SERAT TANDAN KOSONG KELAPA SAWIT Jefri Aldo; Sunardi; Mekro Permana Pinem; Jefri Aldo
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 2 (2025): SJME Kinematika Desember 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i2.747

Abstract

Natural fiber-based composite materials are becoming an environmentally friendly alternative that continues to be developed due to their abundant availability, light weight, and low production costs. This study aims to determine the effect of volume fraction and fiber direction on the mechanical properties of empty oil palm fruit bunch (OPEFB) fiber-based composites, particularly impact toughness and flexural strength. The composite manufacturing process was carried out experimentally using hand lay-up and compression molding methods. OPEFB fibers were used as reinforcement and polyester resin as matrix, with the addition of MEKPO catalyst at 1% of the resin volume. Composites were varied based on fiber volume fraction (20%, 30%, and 40%) and fiber direction (0°, 45°, and 90°). Impact toughness testing was carried out using the Izod method referring to ASTM D256, while flexural strength was tested using the three-point bending method (ASTM D790). The results showed that a 30% volume fraction with a 0° fiber direction produced the highest flexural strength of 95.7 MPa, while a 40% volume fraction with a 45° direction showed the highest impact toughness of 28.1 kJ/m². Increasing the fiber volume fraction above 30% decreased the flexural strength due to fiber agglomeration. The 0° fiber direction was optimal for flexure, while 45° was most effective for absorbing impact energy.
PENDAMPINGAN REHABILITASI RUANG KELAS DAN PEMBANGUNAN TOILET PADA PROGRAM REVITALISASI SLB DI SKH AL KHAIRIYAH CILEGON Woelandari Fathonah; Rama Indera Kusuma; Enden Mina; Ina Asha Nurjanah; Prastika Wahid Santoso; Restu Wigati; Muhammad Fakhruriza Pradana; Zulmahdi Darwis; Syahdan Raihan; Mekro Permana Pinem
Civil Engineering for Community Development (CECD) Vol 5, No 1 (2026): Edisi April 2026
Publisher : Department of Civil Engineering Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/cecd.v5i1.40345

Abstract

Program revitalisasi Sekolah Luar Biasa merupakan upaya pemerintah dalam meningkatkan kualitas sarana dan prasarana pendidikan inklusif. Dalam pelaksanaannya, satuan pendidikan sering menghadapi keterbatasan dalam melakukan pengendalian mutu dan monitoring pekerjaan konstruksi. Kegiatan pengabdian ini bertujuan untuk melakukan pendampingan terhadap pelaksanaan rehabilitasi ruang kelas dan pembangunan toilet di SKh Al Khairiyah Cilegon dalam program revitalisasi SLB. Metode yang digunakan adalah observasi lapangan secara berkala, verifikasi kesesuaian pekerjaan terhadap dokumen perencanaan, serta penyusunan rekomendasi teknis. Hasil kegiatan menunjukkan bahwa pelaksanaan pekerjaan berjalan dengan baik dan cenderung lebih cepat dibandingkan rencana. Meskipun demikian, masih ditemukan beberapa ketidaksesuaian teknis seperti pemasangan elemen aksesibilitas yang belum sesuai standar serta kualitas finishing yang belum optimal. Pendampingan yang dilakukan mampu membantu pihak sekolah dalam mengidentifikasi permasalahan serta melakukan perbaikan secara langsung.
Parametric Analysis of Disperse Phase Soot Transport and Mass Capture in an Ionized Diesel Exhaust Crossflow Bangbang Kurniawan; Asep; Agung Sudrajat; Dhimas Satria; Dwinanto Sukamto; Sunardi; Syarif Abdullah; Mekro Permana Pinem
Jurnal ASIIMETRIK Jurnal Ilmiah Rekayasa & Inovasi Volume 8 Number 2 (2026)
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v8i2.10063

Abstract

This study investigates the influence of applied voltage, electrode spacing, and operating duration on the collection rate of fine particulate matter (PM2.5) in a diesel engine Electrostatic Precipitator (ESP). Using a laboratory-scale ESP integrated with a diesel exhaust system, experiments were conducted at three voltage levels (1.5, 4.5, and 6.7 kV), three electrode spacings (1.5, 2.0, and 2.5 cm), and three operating durations (3, 5, and 7 min). Precipitator performance was quantified using the gravimetric method. The peak particulate collection rate reached 1.10 mg/s under optimized operating parameters (6.7 kV applied voltage, 1.5 cm electrode spacing, and a 7 min operational duration. Statistical analysis via Analysis of Variance (ANOVA) indicates that operating time is the most dominant factor governing the recorded particulate collection rate. While increasing the applied voltage and minimizing electrode spacing demonstrated clear positive physical trends in collection performance by boosting local electric field intensity, their standalone individual effects were not statistically significant at a 95% confidence level. This behaviour reveals the kinetic nature of gravimetric mass accumulation, where sufficient residence time is required to differentiate field-driven transport variances from baseline analytical thresholds. These findings provide critical baseline insights for optimizing compact, low-pressure-drop electrohydrodynamic emission controls on small-scale diesel power systems.
Co-Authors Agung Sudrajat Asep Bangbang Kurniawan Dhimas Satria Dwinanto Sukamto Enden Mina, Enden Fathonah, Woelandari Imron Rosyadi Ina Asha Nurjanah Jefri Aldo Jefri Aldo Muhammad Fakhruriza Pradana, Muhammad Fakhruriza Prastika Wahid Santoso Rama Indera Kusuma Restu Wigati, Restu Sunardi Syahdan Raihan Syarif Abdullah Yusvardi Yusuf Zulmahdi Darwis